airflowPatch1.9/views.py
# -*- coding: utf-8 -*-
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from past.builtins import basestring, unicode
import ast
import logging
import os
import pkg_resources
import socket
from functools import wraps
from datetime import datetime, timedelta
import dateutil.parser
import copy
import math
import json
import bleach
from collections import defaultdict
import inspect
from textwrap import dedent
import traceback
import sqlalchemy as sqla
from sqlalchemy import or_, desc, and_, union_all
from flask import (
redirect, url_for, request, Markup, Response, current_app, render_template, make_response)
from flask_admin import BaseView, expose, AdminIndexView
from flask_admin.contrib.sqla import ModelView
from flask_admin.actions import action
from flask_admin.babel import lazy_gettext
from flask_admin.tools import iterdecode
from flask_login import flash
from flask._compat import PY2
from jinja2.sandbox import ImmutableSandboxedEnvironment
from jinja2 import escape
import markdown
import nvd3
from wtforms import (
Form, SelectField, TextAreaField, PasswordField, StringField, validators)
from pygments import highlight, lexers
from pygments.formatters import HtmlFormatter
import airflow
from airflow import configuration as conf
from airflow import models
from airflow import settings
from airflow.api.common.experimental.mark_tasks import set_dag_run_state
from airflow.exceptions import AirflowException
from airflow.settings import Session
from airflow.models import XCom, DagRun
from airflow.ti_deps.dep_context import DepContext, QUEUE_DEPS, SCHEDULER_DEPS
from airflow.models import BaseOperator
from airflow.operators.subdag_operator import SubDagOperator
from airflow.utils.json import json_ser
from airflow.utils.state import State
from airflow.utils.db import provide_session
from airflow.utils.helpers import alchemy_to_dict
from airflow.utils.dates import infer_time_unit, scale_time_units
from airflow.www import utils as wwwutils
from airflow.www.forms import DateTimeForm, DateTimeWithNumRunsForm
from airflow.www.validators import GreaterEqualThan
QUERY_LIMIT = 100000
CHART_LIMIT = 200000
dagbag = models.DagBag(settings.DAGS_FOLDER)
login_required = airflow.login.login_required
current_user = airflow.login.current_user
logout_user = airflow.login.logout_user
FILTER_BY_OWNER = False
PAGE_SIZE = conf.getint('webserver', 'page_size')
if conf.getboolean('webserver', 'FILTER_BY_OWNER'):
# filter_by_owner if authentication is enabled and filter_by_owner is true
FILTER_BY_OWNER = not current_app.config['LOGIN_DISABLED']
def dag_link(v, c, m, p):
dag_id = bleach.clean(m.dag_id)
url = url_for(
'airflow.graph',
dag_id=dag_id)
return Markup(
'<a href="{}">{}</a>'.format(url, dag_id))
def log_url_formatter(v, c, m, p):
return Markup(
'<a href="{m.log_url}">'
' <span class="glyphicon glyphicon-book" aria-hidden="true">'
'</span></a>').format(**locals())
def task_instance_link(v, c, m, p):
dag_id = bleach.clean(m.dag_id)
task_id = bleach.clean(m.task_id)
url = url_for(
'airflow.task',
dag_id=dag_id,
task_id=task_id,
execution_date=m.execution_date.isoformat())
url_root = url_for(
'airflow.graph',
dag_id=dag_id,
root=task_id,
execution_date=m.execution_date.isoformat())
return Markup(
"""
<span style="white-space: nowrap;">
<a href="{url}">{task_id}</a>
<a href="{url_root}" title="Filter on this task and upstream">
<span class="glyphicon glyphicon-filter" style="margin-left: 0px;"
aria-hidden="true"></span>
</a>
</span>
""".format(**locals()))
def state_token(state):
color = State.color(state)
return Markup(
'<span class="label" style="background-color:{color};">'
'{state}</span>'.format(**locals()))
def state_f(v, c, m, p):
return state_token(m.state)
def duration_f(v, c, m, p):
if m.end_date and m.duration:
return timedelta(seconds=m.duration)
def datetime_f(v, c, m, p):
attr = getattr(m, p)
dttm = attr.isoformat() if attr else ''
if datetime.utcnow().isoformat()[:4] == dttm[:4]:
dttm = dttm[5:]
return Markup("<nobr>{}</nobr>".format(dttm))
def nobr_f(v, c, m, p):
return Markup("<nobr>{}</nobr>".format(getattr(m, p)))
def label_link(v, c, m, p):
try:
default_params = ast.literal_eval(m.default_params)
except:
default_params = {}
url = url_for(
'airflow.chart', chart_id=m.id, iteration_no=m.iteration_no,
**default_params)
return Markup("<a href='{url}'>{m.label}</a>".format(**locals()))
def pool_link(v, c, m, p):
url = '/admin/taskinstance/?flt1_pool_equals=' + m.pool
return Markup("<a href='{url}'>{m.pool}</a>".format(**locals()))
def pygment_html_render(s, lexer=lexers.TextLexer):
return highlight(
s,
lexer(),
HtmlFormatter(linenos=True),
)
def render(obj, lexer):
out = ""
if isinstance(obj, basestring):
out += pygment_html_render(obj, lexer)
elif isinstance(obj, (tuple, list)):
for i, s in enumerate(obj):
out += "<div>List item #{}</div>".format(i)
out += "<div>" + pygment_html_render(s, lexer) + "</div>"
elif isinstance(obj, dict):
for k, v in obj.items():
out += '<div>Dict item "{}"</div>'.format(k)
out += "<div>" + pygment_html_render(v, lexer) + "</div>"
return out
def wrapped_markdown(s):
return '<div class="rich_doc">' + markdown.markdown(s) + "</div>"
attr_renderer = {
'bash_command': lambda x: render(x, lexers.BashLexer),
'hql': lambda x: render(x, lexers.SqlLexer),
'sql': lambda x: render(x, lexers.SqlLexer),
'doc': lambda x: render(x, lexers.TextLexer),
'doc_json': lambda x: render(x, lexers.JsonLexer),
'doc_rst': lambda x: render(x, lexers.RstLexer),
'doc_yaml': lambda x: render(x, lexers.YamlLexer),
'doc_md': wrapped_markdown,
'python_callable': lambda x: render(
inspect.getsource(x), lexers.PythonLexer),
}
def data_profiling_required(f):
"""Decorator for views requiring data profiling access"""
@wraps(f)
def decorated_function(*args, **kwargs):
if (
current_app.config['LOGIN_DISABLED'] or
(not current_user.is_anonymous() and current_user.data_profiling())
):
return f(*args, **kwargs)
else:
flash("This page requires data profiling privileges", "error")
return redirect(url_for('admin.index'))
return decorated_function
def fused_slots(v, c, m, p):
url = (
'/admin/taskinstance/' +
'?flt1_pool_equals=' + m.pool +
'&flt2_state_equals=running')
return Markup("<a href='{0}'>{1}</a>".format(url, m.used_slots()))
def fqueued_slots(v, c, m, p):
url = (
'/admin/taskinstance/' +
'?flt1_pool_equals=' + m.pool +
'&flt2_state_equals=queued&sort=10&desc=1')
return Markup("<a href='{0}'>{1}</a>".format(url, m.queued_slots()))
def recurse_tasks(tasks, task_ids, dag_ids, task_id_to_dag):
if isinstance(tasks, list):
for task in tasks:
recurse_tasks(task, task_ids, dag_ids, task_id_to_dag)
return
if isinstance(tasks, SubDagOperator):
subtasks = tasks.subdag.tasks
dag_ids.append(tasks.subdag.dag_id)
for subtask in subtasks:
if subtask.task_id not in task_ids:
task_ids.append(subtask.task_id)
task_id_to_dag[subtask.task_id] = tasks.subdag
recurse_tasks(subtasks, task_ids, dag_ids, task_id_to_dag)
if isinstance(tasks, BaseOperator):
task_id_to_dag[tasks.task_id] = tasks.dag
def get_chart_height(dag):
"""
TODO(aoen): See [AIRFLOW-1263] We use the number of tasks in the DAG as a heuristic to
approximate the size of generated chart (otherwise the charts are tiny and unreadable
when DAGs have a large number of tasks). Ideally nvd3 should allow for dynamic-height
charts, that is charts that take up space based on the size of the components within.
"""
return 600 + len(dag.tasks) * 10
class Airflow(BaseView):
def is_visible(self):
return False
@expose('/')
@login_required
def index(self):
return self.render('airflow/dags.html')
@expose('/chart_data')
@data_profiling_required
@wwwutils.gzipped
# @cache.cached(timeout=3600, key_prefix=wwwutils.make_cache_key)
def chart_data(self):
from airflow import macros
import pandas as pd
session = settings.Session()
chart_id = request.args.get('chart_id')
csv = request.args.get('csv') == "true"
chart = session.query(models.Chart).filter_by(id=chart_id).first()
db = session.query(
models.Connection).filter_by(conn_id=chart.conn_id).first()
session.expunge_all()
session.commit()
session.close()
payload = {
"state": "ERROR",
"error": ""
}
# Processing templated fields
try:
args = ast.literal_eval(chart.default_params)
if type(args) is not type(dict()):
raise AirflowException('Not a dict')
except:
args = {}
payload['error'] += (
"Default params is not valid, string has to evaluate as "
"a Python dictionary. ")
request_dict = {k: request.args.get(k) for k in request.args}
args.update(request_dict)
args['macros'] = macros
sandbox = ImmutableSandboxedEnvironment()
sql = sandbox.from_string(chart.sql).render(**args)
label = sandbox.from_string(chart.label).render(**args)
payload['sql_html'] = Markup(highlight(
sql,
lexers.SqlLexer(), # Lexer call
HtmlFormatter(noclasses=True))
)
payload['label'] = label
pd.set_option('display.max_colwidth', 100)
hook = db.get_hook()
try:
df = hook.get_pandas_df(
wwwutils.limit_sql(sql, CHART_LIMIT, conn_type=db.conn_type))
df = df.fillna(0)
except Exception as e:
payload['error'] += "SQL execution failed. Details: " + str(e)
if csv:
return Response(
response=df.to_csv(index=False),
status=200,
mimetype="application/text")
if not payload['error'] and len(df) == CHART_LIMIT:
payload['warning'] = (
"Data has been truncated to {0}"
" rows. Expect incomplete results.").format(CHART_LIMIT)
if not payload['error'] and len(df) == 0:
payload['error'] += "Empty result set. "
elif (
not payload['error'] and
chart.sql_layout == 'series' and
chart.chart_type != "datatable" and
len(df.columns) < 3):
payload['error'] += "SQL needs to return at least 3 columns. "
elif (
not payload['error'] and
chart.sql_layout == 'columns' and
len(df.columns) < 2):
payload['error'] += "SQL needs to return at least 2 columns. "
elif not payload['error']:
import numpy as np
chart_type = chart.chart_type
data = None
if chart.show_datatable or chart_type == "datatable":
data = df.to_dict(orient="split")
data['columns'] = [{'title': c} for c in data['columns']]
payload['data'] = data
# Trying to convert time to something Highcharts likes
x_col = 1 if chart.sql_layout == 'series' else 0
if chart.x_is_date:
try:
# From string to datetime
df[df.columns[x_col]] = pd.to_datetime(
df[df.columns[x_col]])
df[df.columns[x_col]] = df[df.columns[x_col]].apply(
lambda x: int(x.strftime("%s")) * 1000)
except Exception as e:
payload['error'] = "Time conversion failed"
if chart_type == 'datatable':
payload['state'] = 'SUCCESS'
return wwwutils.json_response(payload)
else:
if chart.sql_layout == 'series':
# User provides columns (series, x, y)
xaxis_label = df.columns[1]
yaxis_label = df.columns[2]
df[df.columns[2]] = df[df.columns[2]].astype(np.float)
df = df.pivot_table(
index=df.columns[1],
columns=df.columns[0],
values=df.columns[2], aggfunc=np.sum)
else:
# User provides columns (x, y, metric1, metric2, ...)
xaxis_label = df.columns[0]
yaxis_label = 'y'
df.index = df[df.columns[0]]
df = df.sort(df.columns[0])
del df[df.columns[0]]
for col in df.columns:
df[col] = df[col].astype(np.float)
df = df.fillna(0)
NVd3ChartClass = chart_mapping.get(chart.chart_type)
NVd3ChartClass = getattr(nvd3, NVd3ChartClass)
nvd3_chart = NVd3ChartClass(x_is_date=chart.x_is_date)
for col in df.columns:
nvd3_chart.add_serie(name=col, y=df[col].tolist(), x=df[col].index.tolist())
try:
nvd3_chart.buildcontent()
payload['chart_type'] = nvd3_chart.__class__.__name__
payload['htmlcontent'] = nvd3_chart.htmlcontent
except Exception as e:
payload['error'] = str(e)
payload['state'] = 'SUCCESS'
payload['request_dict'] = request_dict
return wwwutils.json_response(payload)
@expose('/chart')
@data_profiling_required
def chart(self):
session = settings.Session()
chart_id = request.args.get('chart_id')
embed = request.args.get('embed')
chart = session.query(models.Chart).filter_by(id=chart_id).first()
session.expunge_all()
session.commit()
session.close()
NVd3ChartClass = chart_mapping.get(chart.chart_type)
if not NVd3ChartClass:
flash(
"Not supported anymore as the license was incompatible, "
"sorry",
"danger")
redirect('/admin/chart/')
sql = ""
if chart.show_sql:
sql = Markup(highlight(
chart.sql,
lexers.SqlLexer(), # Lexer call
HtmlFormatter(noclasses=True))
)
return self.render(
'airflow/nvd3.html',
chart=chart,
title="Airflow - Chart",
sql=sql,
label=chart.label,
embed=embed)
@expose('/dag_stats')
@login_required
def dag_stats(self):
ds = models.DagStat
session = Session()
ds.update()
qry = (
session.query(ds.dag_id, ds.state, ds.count)
)
data = {}
for dag_id, state, count in qry:
if dag_id not in data:
data[dag_id] = {}
data[dag_id][state] = count
payload = {}
for dag in dagbag.dags.values():
payload[dag.safe_dag_id] = []
for state in State.dag_states:
try:
count = data[dag.dag_id][state]
except Exception:
count = 0
d = {
'state': state,
'count': count,
'dag_id': dag.dag_id,
'color': State.color(state)
}
payload[dag.safe_dag_id].append(d)
return wwwutils.json_response(payload)
@expose('/task_stats')
@login_required
def task_stats(self):
TI = models.TaskInstance
DagRun = models.DagRun
Dag = models.DagModel
session = Session()
LastDagRun = (
session.query(DagRun.dag_id, sqla.func.max(DagRun.execution_date).label('execution_date'))
.join(Dag, Dag.dag_id == DagRun.dag_id)
.filter(DagRun.state != State.RUNNING)
.filter(Dag.is_active == True)
.group_by(DagRun.dag_id)
.subquery('last_dag_run')
)
RunningDagRun = (
session.query(DagRun.dag_id, DagRun.execution_date)
.join(Dag, Dag.dag_id == DagRun.dag_id)
.filter(DagRun.state == State.RUNNING)
.filter(Dag.is_active == True)
.subquery('running_dag_run')
)
# Select all task_instances from active dag_runs.
# If no dag_run is active, return task instances from most recent dag_run.
LastTI = (
session.query(TI.dag_id.label('dag_id'), TI.state.label('state'))
.join(LastDagRun, and_(
LastDagRun.c.dag_id == TI.dag_id,
LastDagRun.c.execution_date == TI.execution_date))
)
RunningTI = (
session.query(TI.dag_id.label('dag_id'), TI.state.label('state'))
.join(RunningDagRun, and_(
RunningDagRun.c.dag_id == TI.dag_id,
RunningDagRun.c.execution_date == TI.execution_date))
)
UnionTI = union_all(LastTI, RunningTI).alias('union_ti')
qry = (
session.query(UnionTI.c.dag_id, UnionTI.c.state, sqla.func.count())
.group_by(UnionTI.c.dag_id, UnionTI.c.state)
)
data = {}
for dag_id, state, count in qry:
if dag_id not in data:
data[dag_id] = {}
data[dag_id][state] = count
session.commit()
session.close()
payload = {}
for dag in dagbag.dags.values():
payload[dag.safe_dag_id] = []
for state in State.task_states:
try:
count = data[dag.dag_id][state]
except:
count = 0
d = {
'state': state,
'count': count,
'dag_id': dag.dag_id,
'color': State.color(state)
}
payload[dag.safe_dag_id].append(d)
return wwwutils.json_response(payload)
@expose('/code')
@login_required
def code(self):
dag_id = request.args.get('dag_id')
dag = dagbag.get_dag(dag_id)
title = dag_id
try:
with open(dag.fileloc, 'r') as f:
code = f.read()
html_code = highlight(
code, lexers.PythonLexer(), HtmlFormatter(linenos=True))
except IOError as e:
html_code = str(e)
return self.render(
'airflow/dag_code.html', html_code=html_code, dag=dag, title=title,
root=request.args.get('root'),
demo_mode=conf.getboolean('webserver', 'demo_mode'))
@expose('/dag_details')
@login_required
def dag_details(self):
dag_id = request.args.get('dag_id')
dag = dagbag.get_dag(dag_id)
title = "DAG details"
session = settings.Session()
TI = models.TaskInstance
states = (
session.query(TI.state, sqla.func.count(TI.dag_id))
.filter(TI.dag_id == dag_id)
.group_by(TI.state)
.all()
)
return self.render(
'airflow/dag_details.html',
dag=dag, title=title, states=states, State=State)
@current_app.errorhandler(404)
def circles(self):
return render_template(
'airflow/circles.html', hostname=socket.getfqdn()), 404
@current_app.errorhandler(500)
def show_traceback(self):
from airflow.utils import asciiart as ascii_
return render_template(
'airflow/traceback.html',
hostname=socket.getfqdn(),
nukular=ascii_.nukular,
info=traceback.format_exc()), 500
@expose('/noaccess')
def noaccess(self):
return self.render('airflow/noaccess.html')
@expose('/pickle_info')
@login_required
def pickle_info(self):
d = {}
dag_id = request.args.get('dag_id')
dags = [dagbag.dags.get(dag_id)] if dag_id else dagbag.dags.values()
for dag in dags:
if not dag.is_subdag:
d[dag.dag_id] = dag.pickle_info()
return wwwutils.json_response(d)
@expose('/login', methods=['GET', 'POST'])
def login(self):
return airflow.login.login(self, request)
@expose('/logout')
def logout(self):
logout_user()
flash('You have been logged out.')
return redirect(url_for('admin.index'))
@expose('/rendered')
@login_required
@wwwutils.action_logging
def rendered(self):
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
execution_date = request.args.get('execution_date')
dttm = dateutil.parser.parse(execution_date)
form = DateTimeForm(data={'execution_date': dttm})
dag = dagbag.get_dag(dag_id)
task = copy.copy(dag.get_task(task_id))
ti = models.TaskInstance(task=task, execution_date=dttm)
try:
ti.render_templates()
except Exception as e:
flash("Error rendering template: " + str(e), "error")
title = "Rendered Template"
html_dict = {}
for template_field in task.__class__.template_fields:
content = getattr(task, template_field)
if template_field in attr_renderer:
html_dict[template_field] = attr_renderer[template_field](content)
else:
html_dict[template_field] = (
"<pre><code>" + str(content) + "</pre></code>")
return self.render(
'airflow/ti_code.html',
html_dict=html_dict,
dag=dag,
task_id=task_id,
execution_date=execution_date,
form=form,
title=title, )
@expose('/log')
@login_required
@wwwutils.action_logging
def log(self):
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
execution_date = request.args.get('execution_date')
dttm = dateutil.parser.parse(execution_date)
form = DateTimeForm(data={'execution_date': dttm})
dag = dagbag.get_dag(dag_id)
session = Session()
ti = session.query(models.TaskInstance).filter(
models.TaskInstance.dag_id == dag_id,
models.TaskInstance.task_id == task_id,
models.TaskInstance.execution_date == dttm).first()
if ti is None:
logs = ["*** Task instance did not exist in the DB\n"]
else:
logger = logging.getLogger('airflow.task')
task_log_reader = conf.get('core', 'task_log_reader')
handler = next((handler for handler in logger.handlers
if handler.name == task_log_reader), None)
try:
ti.task = dag.get_task(ti.task_id)
logs = handler.read(ti)
except AttributeError as e:
logs = ["Task log handler {} does not support read logs.\n{}\n" \
.format(task_log_reader, str(e))]
for i, log in enumerate(logs):
if PY2 and not isinstance(log, unicode):
logs[i] = log.decode('utf-8')
return self.render(
'airflow/ti_log.html',
logs=logs, dag=dag, title="Log by attempts", task_id=task_id,
execution_date=execution_date, form=form)
@expose('/task')
@login_required
@wwwutils.action_logging
def task(self):
TI = models.TaskInstance
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
# Carrying execution_date through, even though it's irrelevant for
# this context
execution_date = request.args.get('execution_date')
dttm = dateutil.parser.parse(execution_date)
form = DateTimeForm(data={'execution_date': dttm})
dag = dagbag.get_dag(dag_id)
if not dag or task_id not in dag.task_ids:
flash(
"Task [{}.{}] doesn't seem to exist"
" at the moment".format(dag_id, task_id),
"error")
return redirect('/admin/')
task = copy.copy(dag.get_task(task_id))
task.resolve_template_files()
ti = TI(task=task, execution_date=dttm)
ti.refresh_from_db()
ti_attrs = []
for attr_name in dir(ti):
if not attr_name.startswith('_'):
attr = getattr(ti, attr_name)
if type(attr) != type(self.task):
ti_attrs.append((attr_name, str(attr)))
task_attrs = []
for attr_name in dir(task):
if not attr_name.startswith('_'):
attr = getattr(task, attr_name)
if type(attr) != type(self.task) and \
attr_name not in attr_renderer:
task_attrs.append((attr_name, str(attr)))
# Color coding the special attributes that are code
special_attrs_rendered = {}
for attr_name in attr_renderer:
if hasattr(task, attr_name):
source = getattr(task, attr_name)
special_attrs_rendered[attr_name] = attr_renderer[attr_name](source)
no_failed_deps_result = [(
"Unknown",
dedent("""\
All dependencies are met but the task instance is not running. In most cases this just means that the task will probably be scheduled soon unless:<br/>
- The scheduler is down or under heavy load<br/>
{}
<br/>
If this task instance does not start soon please contact your Airflow administrator for assistance."""
.format(
"- This task instance already ran and had it's state changed manually (e.g. cleared in the UI)<br/>"
if ti.state == State.NONE else "")))]
# Use the scheduler's context to figure out which dependencies are not met
dep_context = DepContext(SCHEDULER_DEPS)
failed_dep_reasons = [(dep.dep_name, dep.reason) for dep in
ti.get_failed_dep_statuses(
dep_context=dep_context)]
title = "Task Instance Details"
return self.render(
'airflow/task.html',
task_attrs=task_attrs,
ti_attrs=ti_attrs,
failed_dep_reasons=failed_dep_reasons or no_failed_deps_result,
task_id=task_id,
execution_date=execution_date,
special_attrs_rendered=special_attrs_rendered,
form=form,
dag=dag, title=title)
@expose('/xcom')
@login_required
@wwwutils.action_logging
def xcom(self):
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
# Carrying execution_date through, even though it's irrelevant for
# this context
execution_date = request.args.get('execution_date')
dttm = dateutil.parser.parse(execution_date)
form = DateTimeForm(data={'execution_date': dttm})
dag = dagbag.get_dag(dag_id)
if not dag or task_id not in dag.task_ids:
flash(
"Task [{}.{}] doesn't seem to exist"
" at the moment".format(dag_id, task_id),
"error")
return redirect('/admin/')
session = Session()
xcomlist = session.query(XCom).filter(
XCom.dag_id == dag_id, XCom.task_id == task_id,
XCom.execution_date == dttm).all()
attributes = []
for xcom in xcomlist:
if not xcom.key.startswith('_'):
attributes.append((xcom.key, xcom.value))
title = "XCom"
return self.render(
'airflow/xcom.html',
attributes=attributes,
task_id=task_id,
execution_date=execution_date,
form=form,
dag=dag, title=title)
@expose('/run')
@login_required
@wwwutils.action_logging
@wwwutils.notify_owner
def run(self):
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
origin = request.args.get('origin')
dag = dagbag.get_dag(dag_id)
task = dag.get_task(task_id)
execution_date = request.args.get('execution_date')
execution_date = dateutil.parser.parse(execution_date)
ignore_all_deps = request.args.get('ignore_all_deps') == "true"
ignore_task_deps = request.args.get('ignore_task_deps') == "true"
ignore_ti_state = request.args.get('ignore_ti_state') == "true"
try:
from airflow.executors import GetDefaultExecutor
from airflow.executors.celery_executor import CeleryExecutor
executor = GetDefaultExecutor()
if not isinstance(executor, CeleryExecutor):
flash("Only works with the CeleryExecutor, sorry", "error")
return redirect(origin)
except ImportError:
# in case CeleryExecutor cannot be imported it is not active either
flash("Only works with the CeleryExecutor, sorry", "error")
return redirect(origin)
ti = models.TaskInstance(task=task, execution_date=execution_date)
ti.refresh_from_db()
# Make sure the task instance can be queued
dep_context = DepContext(
deps=QUEUE_DEPS,
ignore_all_deps=ignore_all_deps,
ignore_task_deps=ignore_task_deps,
ignore_ti_state=ignore_ti_state)
failed_deps = list(ti.get_failed_dep_statuses(dep_context=dep_context))
if failed_deps:
failed_deps_str = ", ".join(
["{}: {}".format(dep.dep_name, dep.reason) for dep in failed_deps])
flash("Could not queue task instance for execution, dependencies not met: "
"{}".format(failed_deps_str),
"error")
return redirect(origin)
executor.start()
executor.queue_task_instance(
ti,
ignore_all_deps=ignore_all_deps,
ignore_task_deps=ignore_task_deps,
ignore_ti_state=ignore_ti_state)
executor.heartbeat()
flash(
"Sent {} to the message queue, "
"it should start any moment now.".format(ti))
return redirect(origin)
@expose('/trigger')
@login_required
@wwwutils.action_logging
@wwwutils.notify_owner
def trigger(self):
dag_id = request.args.get('dag_id')
origin = request.args.get('origin') or "/admin/"
dag = dagbag.get_dag(dag_id)
if not dag:
flash("Cannot find dag {}".format(dag_id))
return redirect(origin)
execution_date = datetime.utcnow()
run_id = "manual__{0}".format(execution_date.isoformat())
dr = DagRun.find(dag_id=dag_id, run_id=run_id)
if dr:
flash("This run_id {} already exists".format(run_id))
return redirect(origin)
run_conf = {}
dag.create_dagrun(
run_id=run_id,
execution_date=execution_date,
state=State.RUNNING,
conf=run_conf,
external_trigger=True
)
flash(
"Triggered {}, "
"it should start any moment now.".format(dag_id))
return redirect(origin)
def _clear_dag_tis(self, dag, start_date, end_date, origin,
recursive=False, confirmed=False):
if confirmed:
count = dag.clear(
start_date=start_date,
end_date=end_date,
include_subdags=recursive)
flash("{0} task instances have been cleared".format(count))
return redirect(origin)
tis = dag.clear(
start_date=start_date,
end_date=end_date,
include_subdags=recursive,
dry_run=True)
if not tis:
flash("No task instances to clear", 'error')
response = redirect(origin)
else:
details = "\n".join([str(t) for t in tis])
response = self.render(
'airflow/confirm.html',
message=("Here's the list of task instances you are about "
"to clear:"),
details=details)
return response
@expose('/clear')
@login_required
@wwwutils.action_logging
@wwwutils.notify_owner
def clear(self):
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
origin = request.args.get('origin')
dag = dagbag.get_dag(dag_id)
execution_date = request.args.get('execution_date')
execution_date = dateutil.parser.parse(execution_date)
confirmed = request.args.get('confirmed') == "true"
upstream = request.args.get('upstream') == "true"
downstream = request.args.get('downstream') == "true"
future = request.args.get('future') == "true"
past = request.args.get('past') == "true"
recursive = request.args.get('recursive') == "true"
dag = dag.sub_dag(
task_regex=r"^{0}$".format(task_id),
include_downstream=downstream,
include_upstream=upstream)
end_date = execution_date if not future else None
start_date = execution_date if not past else None
return self._clear_dag_tis(dag, start_date, end_date, origin,
recursive=recursive, confirmed=confirmed)
@expose('/dagrun_clear')
@login_required
@wwwutils.action_logging
@wwwutils.notify_owner
def dagrun_clear(self):
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
origin = request.args.get('origin')
execution_date = request.args.get('execution_date')
confirmed = request.args.get('confirmed') == "true"
dag = dagbag.get_dag(dag_id)
execution_date = dateutil.parser.parse(execution_date)
start_date = execution_date
end_date = execution_date
return self._clear_dag_tis(dag, start_date, end_date, origin,
recursive=True, confirmed=confirmed)
@expose('/blocked')
@login_required
def blocked(self):
session = settings.Session()
DR = models.DagRun
dags = (
session.query(DR.dag_id, sqla.func.count(DR.id))
.filter(DR.state == State.RUNNING)
.group_by(DR.dag_id)
.all()
)
payload = []
for dag_id, active_dag_runs in dags:
max_active_runs = 0
if dag_id in dagbag.dags:
max_active_runs = dagbag.dags[dag_id].max_active_runs
payload.append({
'dag_id': dag_id,
'active_dag_run': active_dag_runs,
'max_active_runs': max_active_runs,
})
return wwwutils.json_response(payload)
@expose('/dagrun_success')
@login_required
@wwwutils.action_logging
@wwwutils.notify_owner
def dagrun_success(self):
dag_id = request.args.get('dag_id')
execution_date = request.args.get('execution_date')
confirmed = request.args.get('confirmed') == 'true'
origin = request.args.get('origin')
if not execution_date:
flash('Invalid execution date', 'error')
return redirect(origin)
execution_date = dateutil.parser.parse(execution_date)
dag = dagbag.get_dag(dag_id)
if not dag:
flash('Cannot find DAG: {}'.format(dag_id), 'error')
return redirect(origin)
new_dag_state = set_dag_run_state(dag, execution_date, state=State.SUCCESS,
commit=confirmed)
if confirmed:
flash('Marked success on {} task instances'.format(len(new_dag_state)))
return redirect(origin)
else:
details = '\n'.join([str(t) for t in new_dag_state])
response = self.render('airflow/confirm.html',
message=("Here's the list of task instances you are "
"about to mark as successful:"),
details=details)
return response
@expose('/success')
@login_required
@wwwutils.action_logging
@wwwutils.notify_owner
def success(self):
dag_id = request.args.get('dag_id')
task_id = request.args.get('task_id')
origin = request.args.get('origin')
dag = dagbag.get_dag(dag_id)
task = dag.get_task(task_id)
task.dag = dag
execution_date = request.args.get('execution_date')
execution_date = dateutil.parser.parse(execution_date)
confirmed = request.args.get('confirmed') == "true"
upstream = request.args.get('upstream') == "true"
downstream = request.args.get('downstream') == "true"
future = request.args.get('future') == "true"
past = request.args.get('past') == "true"
if not dag:
flash("Cannot find DAG: {}".format(dag_id))
return redirect(origin)
if not task:
flash("Cannot find task {} in DAG {}".format(task_id, dag.dag_id))
return redirect(origin)
from airflow.api.common.experimental.mark_tasks import set_state
if confirmed:
altered = set_state(task=task, execution_date=execution_date,
upstream=upstream, downstream=downstream,
future=future, past=past, state=State.SUCCESS,
commit=True)
flash("Marked success on {} task instances".format(len(altered)))
return redirect(origin)
to_be_altered = set_state(task=task, execution_date=execution_date,
upstream=upstream, downstream=downstream,
future=future, past=past, state=State.SUCCESS,
commit=False)
details = "\n".join([str(t) for t in to_be_altered])
response = self.render("airflow/confirm.html",
message=("Here's the list of task instances you are "
"about to mark as successful:"),
details=details)
return response
@expose('/tree')
@login_required
@wwwutils.gzipped
@wwwutils.action_logging
def tree(self):
dag_id = request.args.get('dag_id')
blur = conf.getboolean('webserver', 'demo_mode')
dag = dagbag.get_dag(dag_id)
root = request.args.get('root')
if root:
dag = dag.sub_dag(
task_regex=root,
include_downstream=False,
include_upstream=True)
session = settings.Session()
base_date = request.args.get('base_date')
num_runs = request.args.get('num_runs')
num_runs = int(num_runs) if num_runs else 25
if base_date:
base_date = dateutil.parser.parse(base_date)
else:
base_date = dag.latest_execution_date or datetime.utcnow()
dates = dag.date_range(base_date, num=-abs(num_runs))
min_date = dates[0] if dates else datetime(2000, 1, 1)
DR = models.DagRun
dag_runs = (
session.query(DR)
.filter(
DR.dag_id == dag.dag_id,
DR.execution_date <= base_date,
DR.execution_date >= min_date)
.all()
)
dag_runs = {
dr.execution_date: alchemy_to_dict(dr) for dr in dag_runs}
dates = sorted(list(dag_runs.keys()))
max_date = max(dates) if dates else None
tis = dag.get_task_instances(
session, start_date=min_date, end_date=base_date)
task_instances = {}
for ti in tis:
tid = alchemy_to_dict(ti)
dr = dag_runs.get(ti.execution_date)
tid['external_trigger'] = dr['external_trigger'] if dr else False
task_instances[(ti.task_id, ti.execution_date)] = tid
expanded = []
# The default recursion traces every path so that tree view has full
# expand/collapse functionality. After 5,000 nodes we stop and fall
# back on a quick DFS search for performance. See PR #320.
node_count = [0]
node_limit = 5000 / max(1, len(dag.roots))
def recurse_nodes(task, visited):
visited.add(task)
node_count[0] += 1
children = [
recurse_nodes(t, visited) for t in task.upstream_list
if node_count[0] < node_limit or t not in visited]
# D3 tree uses children vs _children to define what is
# expanded or not. The following block makes it such that
# repeated nodes are collapsed by default.
children_key = 'children'
if task.task_id not in expanded:
expanded.append(task.task_id)
elif children:
children_key = "_children"
def set_duration(tid):
if (isinstance(tid, dict) and tid.get("state") == State.RUNNING and
tid["start_date"] is not None):
d = datetime.utcnow() - dateutil.parser.parse(tid["start_date"])
tid["duration"] = d.total_seconds()
return tid
return {
'name': task.task_id,
'instances': [
set_duration(task_instances.get((task.task_id, d))) or {
'execution_date': d.isoformat(),
'task_id': task.task_id
}
for d in dates],
children_key: children,
'num_dep': len(task.upstream_list),
'operator': task.task_type,
'retries': task.retries,
'owner': task.owner,
'start_date': task.start_date,
'end_date': task.end_date,
'depends_on_past': task.depends_on_past,
'ui_color': task.ui_color,
}
data = {
'name': '[DAG]',
'children': [recurse_nodes(t, set()) for t in dag.roots],
'instances': [
dag_runs.get(d) or {'execution_date': d.isoformat()}
for d in dates],
}
data = json.dumps(data, indent=4, default=json_ser)
session.commit()
session.close()
form = DateTimeWithNumRunsForm(data={'base_date': max_date,
'num_runs': num_runs})
return self.render(
'airflow/tree.html',
operators=sorted(
list(set([op.__class__ for op in dag.tasks])),
key=lambda x: x.__name__
),
root=root,
form=form,
dag=dag, data=data, blur=blur)
@expose('/graph')
@login_required
@wwwutils.gzipped
@wwwutils.action_logging
def graph(self):
session = settings.Session()
dag_id = request.args.get('dag_id')
blur = conf.getboolean('webserver', 'demo_mode')
dag = dagbag.get_dag(dag_id)
if dag_id not in dagbag.dags:
flash('DAG "{0}" seems to be missing.'.format(dag_id), "error")
return redirect('/admin/')
root = request.args.get('root')
if root:
dag = dag.sub_dag(
task_regex=root,
include_upstream=True,
include_downstream=False)
arrange = request.args.get('arrange', dag.orientation)
nodes = []
edges = []
for task in dag.tasks:
nodes.append({
'id': task.task_id,
'value': {
'label': task.task_id,
'labelStyle': "fill:{0};".format(task.ui_fgcolor),
'style': "fill:{0};".format(task.ui_color),
}
})
def get_upstream(task):
for t in task.upstream_list:
edge = {
'u': t.task_id,
'v': task.task_id,
}
if edge not in edges:
edges.append(edge)
get_upstream(t)
for t in dag.roots:
get_upstream(t)
dttm = request.args.get('execution_date')
if dttm:
dttm = dateutil.parser.parse(dttm)
else:
dttm = dag.latest_execution_date or datetime.utcnow().date()
DR = models.DagRun
drs = (
session.query(DR)
.filter_by(dag_id=dag_id)
.order_by(desc(DR.execution_date)).all()
)
dr_choices = []
dr_state = None
for dr in drs:
dr_choices.append((dr.execution_date.isoformat(), dr.run_id))
if dttm == dr.execution_date:
dr_state = dr.state
class GraphForm(Form):
execution_date = SelectField("DAG run", choices=dr_choices)
arrange = SelectField("Layout", choices=(
('LR', "Left->Right"),
('RL', "Right->Left"),
('TB', "Top->Bottom"),
('BT', "Bottom->Top"),
))
form = GraphForm(
data={'execution_date': dttm.isoformat(), 'arrange': arrange})
task_instances = {
ti.task_id: alchemy_to_dict(ti)
for ti in dag.get_task_instances(session, dttm, dttm)}
tasks = {
t.task_id: {
'dag_id': t.dag_id,
'task_type': t.task_type,
}
for t in dag.tasks}
if not tasks:
flash("No tasks found", "error")
session.commit()
session.close()
doc_md = markdown.markdown(dag.doc_md) if hasattr(dag, 'doc_md') and dag.doc_md else ''
return self.render(
'airflow/graph.html',
dag=dag,
form=form,
width=request.args.get('width', "100%"),
height=request.args.get('height', "800"),
execution_date=dttm.isoformat(),
state_token=state_token(dr_state),
doc_md=doc_md,
arrange=arrange,
operators=sorted(
list(set([op.__class__ for op in dag.tasks])),
key=lambda x: x.__name__
),
blur=blur,
root=root or '',
task_instances=json.dumps(task_instances, indent=2),
tasks=json.dumps(tasks, indent=2),
nodes=json.dumps(nodes, indent=2),
edges=json.dumps(edges, indent=2), )
@expose('/duration')
@login_required
@wwwutils.action_logging
def duration(self):
session = settings.Session()
dag_id = request.args.get('dag_id')
dag = dagbag.get_dag(dag_id)
base_date = request.args.get('base_date')
num_runs = request.args.get('num_runs')
num_runs = int(num_runs) if num_runs else 25
if base_date:
base_date = dateutil.parser.parse(base_date)
else:
base_date = dag.latest_execution_date or datetime.utcnow()
dates = dag.date_range(base_date, num=-abs(num_runs))
min_date = dates[0] if dates else datetime(2000, 1, 1)
root = request.args.get('root')
if root:
dag = dag.sub_dag(
task_regex=root,
include_upstream=True,
include_downstream=False)
chart_height = get_chart_height(dag)
chart = nvd3.lineChart(
name="lineChart", x_is_date=True, height=chart_height, width="1200")
cum_chart = nvd3.lineChart(
name="cumLineChart", x_is_date=True, height=chart_height, width="1200")
y = defaultdict(list)
x = defaultdict(list)
cum_y = defaultdict(list)
tis = dag.get_task_instances(
session, start_date=min_date, end_date=base_date)
TF = models.TaskFail
ti_fails = (
session
.query(TF)
.filter(
TF.dag_id == dag.dag_id,
TF.execution_date >= min_date,
TF.execution_date <= base_date,
TF.task_id.in_([t.task_id for t in dag.tasks]))
.all()
)
fails_totals = defaultdict(int)
for tf in ti_fails:
dict_key = (tf.dag_id, tf.task_id, tf.execution_date)
fails_totals[dict_key] += tf.duration
for ti in tis:
if ti.duration:
dttm = wwwutils.epoch(ti.execution_date)
x[ti.task_id].append(dttm)
y[ti.task_id].append(float(ti.duration))
fails_dict_key = (ti.dag_id, ti.task_id, ti.execution_date)
fails_total = fails_totals[fails_dict_key]
cum_y[ti.task_id].append(float(ti.duration + fails_total))
# determine the most relevant time unit for the set of task instance
# durations for the DAG
y_unit = infer_time_unit([d for t in y.values() for d in t])
cum_y_unit = infer_time_unit([d for t in cum_y.values() for d in t])
# update the y Axis on both charts to have the correct time units
chart.create_y_axis('yAxis', format='.02f', custom_format=False,
label='Duration ({})'.format(y_unit))
chart.axislist['yAxis']['axisLabelDistance'] = '40'
cum_chart.create_y_axis('yAxis', format='.02f', custom_format=False,
label='Duration ({})'.format(cum_y_unit))
cum_chart.axislist['yAxis']['axisLabelDistance'] = '40'
for task in dag.tasks:
if x[task.task_id]:
chart.add_serie(name=task.task_id, x=x[task.task_id],
y=scale_time_units(y[task.task_id], y_unit))
cum_chart.add_serie(name=task.task_id, x=x[task.task_id],
y=scale_time_units(cum_y[task.task_id],
cum_y_unit))
dates = sorted(list({ti.execution_date for ti in tis}))
max_date = max([ti.execution_date for ti in tis]) if dates else None
session.commit()
session.close()
form = DateTimeWithNumRunsForm(data={'base_date': max_date,
'num_runs': num_runs})
chart.buildcontent()
cum_chart.buildcontent()
s_index = cum_chart.htmlcontent.rfind('});')
cum_chart.htmlcontent = (cum_chart.htmlcontent[:s_index] +
"$(function() {$( document ).trigger('chartload') })" +
cum_chart.htmlcontent[s_index:])
return self.render(
'airflow/duration_chart.html',
dag=dag,
demo_mode=conf.getboolean('webserver', 'demo_mode'),
root=root,
form=form,
chart=chart.htmlcontent,
cum_chart=cum_chart.htmlcontent
)
@expose('/tries')
@login_required
@wwwutils.action_logging
def tries(self):
session = settings.Session()
dag_id = request.args.get('dag_id')
dag = dagbag.get_dag(dag_id)
base_date = request.args.get('base_date')
num_runs = request.args.get('num_runs')
num_runs = int(num_runs) if num_runs else 25
if base_date:
base_date = dateutil.parser.parse(base_date)
else:
base_date = dag.latest_execution_date or datetime.utcnow()
dates = dag.date_range(base_date, num=-abs(num_runs))
min_date = dates[0] if dates else datetime(2000, 1, 1)
root = request.args.get('root')
if root:
dag = dag.sub_dag(
task_regex=root,
include_upstream=True,
include_downstream=False)
chart_height = get_chart_height(dag)
chart = nvd3.lineChart(
name="lineChart", x_is_date=True, y_axis_format='d', height=chart_height,
width="1200")
for task in dag.tasks:
y = []
x = []
for ti in task.get_task_instances(session, start_date=min_date,
end_date=base_date):
dttm = wwwutils.epoch(ti.execution_date)
x.append(dttm)
y.append(ti.try_number)
if x:
chart.add_serie(name=task.task_id, x=x, y=y)
tis = dag.get_task_instances(
session, start_date=min_date, end_date=base_date)
tries = sorted(list({ti.try_number for ti in tis}))
max_date = max([ti.execution_date for ti in tis]) if tries else None
session.commit()
session.close()
form = DateTimeWithNumRunsForm(data={'base_date': max_date,
'num_runs': num_runs})
chart.buildcontent()
return self.render(
'airflow/chart.html',
dag=dag,
demo_mode=conf.getboolean('webserver', 'demo_mode'),
root=root,
form=form,
chart=chart.htmlcontent
)
@expose('/landing_times')
@login_required
@wwwutils.action_logging
def landing_times(self):
session = settings.Session()
dag_id = request.args.get('dag_id')
dag = dagbag.get_dag(dag_id)
base_date = request.args.get('base_date')
num_runs = request.args.get('num_runs')
num_runs = int(num_runs) if num_runs else 25
if base_date:
base_date = dateutil.parser.parse(base_date)
else:
base_date = dag.latest_execution_date or datetime.utcnow()
dates = dag.date_range(base_date, num=-abs(num_runs))
min_date = dates[0] if dates else datetime(2000, 1, 1)
root = request.args.get('root')
if root:
dag = dag.sub_dag(
task_regex=root,
include_upstream=True,
include_downstream=False)
chart_height = get_chart_height(dag)
chart = nvd3.lineChart(
name="lineChart", x_is_date=True, height=chart_height, width="1200")
y = {}
x = {}
for task in dag.tasks:
y[task.task_id] = []
x[task.task_id] = []
for ti in task.get_task_instances(session, start_date=min_date,
end_date=base_date):
ts = ti.execution_date
if dag.schedule_interval and dag.following_schedule(ts):
ts = dag.following_schedule(ts)
if ti.end_date:
dttm = wwwutils.epoch(ti.execution_date)
secs = (ti.end_date - ts).total_seconds()
x[ti.task_id].append(dttm)
y[ti.task_id].append(secs)
# determine the most relevant time unit for the set of landing times
# for the DAG
y_unit = infer_time_unit([d for t in y.values() for d in t])
# update the y Axis to have the correct time units
chart.create_y_axis('yAxis', format='.02f', custom_format=False,
label='Landing Time ({})'.format(y_unit))
chart.axislist['yAxis']['axisLabelDistance'] = '40'
for task in dag.tasks:
if x[task.task_id]:
chart.add_serie(name=task.task_id, x=x[task.task_id],
y=scale_time_units(y[task.task_id], y_unit))
tis = dag.get_task_instances(
session, start_date=min_date, end_date=base_date)
dates = sorted(list({ti.execution_date for ti in tis}))
max_date = max([ti.execution_date for ti in tis]) if dates else None
session.commit()
session.close()
form = DateTimeWithNumRunsForm(data={'base_date': max_date,
'num_runs': num_runs})
chart.buildcontent()
return self.render(
'airflow/chart.html',
dag=dag,
chart=chart.htmlcontent,
height=str(chart_height + 100) + "px",
demo_mode=conf.getboolean('webserver', 'demo_mode'),
root=root,
form=form,
)
@expose('/paused', methods=['POST'])
@login_required
@wwwutils.action_logging
def paused(self):
DagModel = models.DagModel
dag_id = request.args.get('dag_id')
session = settings.Session()
orm_dag = session.query(
DagModel).filter(DagModel.dag_id == dag_id).first()
if request.args.get('is_paused') == 'false':
orm_dag.is_paused = True
else:
orm_dag.is_paused = False
session.merge(orm_dag)
session.commit()
session.close()
dagbag.get_dag(dag_id)
return "OK"
@expose('/refresh')
@login_required
@wwwutils.action_logging
def refresh(self):
DagModel = models.DagModel
dag_id = request.args.get('dag_id')
session = settings.Session()
orm_dag = session.query(
DagModel).filter(DagModel.dag_id == dag_id).first()
if orm_dag:
orm_dag.last_expired = datetime.utcnow()
session.merge(orm_dag)
session.commit()
session.close()
dagbag.get_dag(dag_id)
flash("DAG [{}] is now fresh as a daisy".format(dag_id))
return redirect(request.referrer)
@expose('/refresh_all')
@login_required
@wwwutils.action_logging
def refresh_all(self):
dagbag.collect_dags(only_if_updated=False)
flash("All DAGs are now up to date")
return redirect('/')
@expose('/gantt')
@login_required
@wwwutils.action_logging
def gantt(self):
session = settings.Session()
dag_id = request.args.get('dag_id')
dag = dagbag.get_dag(dag_id)
demo_mode = conf.getboolean('webserver', 'demo_mode')
root = request.args.get('root')
if root:
dag = dag.sub_dag(
task_regex=root,
include_upstream=True,
include_downstream=False)
dttm = request.args.get('execution_date')
if dttm:
dttm = dateutil.parser.parse(dttm)
else:
dttm = dag.latest_execution_date or datetime.utcnow().date()
form = DateTimeForm(data={'execution_date': dttm})
tis = [
ti for ti in dag.get_task_instances(session, dttm, dttm)
if ti.start_date]
tis = sorted(tis, key=lambda ti: ti.start_date)
tasks = []
for ti in tis:
end_date = ti.end_date if ti.end_date else datetime.utcnow()
tasks.append({
'startDate': wwwutils.epoch(ti.start_date),
'endDate': wwwutils.epoch(end_date),
'isoStart': ti.start_date.isoformat()[:-4],
'isoEnd': end_date.isoformat()[:-4],
'taskName': ti.task_id,
'duration': "{}".format(end_date - ti.start_date)[:-4],
'status': ti.state,
'executionDate': ti.execution_date.isoformat(),
})
states = {ti.state: ti.state for ti in tis}
data = {
'taskNames': [ti.task_id for ti in tis],
'tasks': tasks,
'taskStatus': states,
'height': len(tis) * 25 + 25,
}
session.commit()
session.close()
return self.render(
'airflow/gantt.html',
dag=dag,
execution_date=dttm.isoformat(),
form=form,
data=json.dumps(data, indent=2),
base_date='',
demo_mode=demo_mode,
root=root,
)
@expose('/object/task_instances')
@login_required
@wwwutils.action_logging
def task_instances(self):
session = settings.Session()
dag_id = request.args.get('dag_id')
dag = dagbag.get_dag(dag_id)
dttm = request.args.get('execution_date')
if dttm:
dttm = dateutil.parser.parse(dttm)
else:
return ("Error: Invalid execution_date")
task_instances = {
ti.task_id: alchemy_to_dict(ti)
for ti in dag.get_task_instances(session, dttm, dttm)}
return json.dumps(task_instances)
@expose('/variables/<form>', methods=["GET", "POST"])
@login_required
@wwwutils.action_logging
def variables(self, form):
try:
if request.method == 'POST':
data = request.json
if data:
session = settings.Session()
var = models.Variable(key=form, val=json.dumps(data))
session.add(var)
session.commit()
return ""
else:
return self.render(
'airflow/variables/{}.html'.format(form)
)
except:
# prevent XSS
form = escape(form)
return ("Error: form airflow/variables/{}.html "
"not found.").format(form), 404
@expose('/varimport', methods=["GET", "POST"])
@login_required
@wwwutils.action_logging
def varimport(self):
try:
out = str(request.files['file'].read())
d = json.loads(out)
except Exception:
flash("Missing file or syntax error.")
else:
for k, v in d.items():
models.Variable.set(k, v, serialize_json=isinstance(v, dict))
flash("{} variable(s) successfully updated.".format(len(d)))
return redirect('/admin/variable')
class HomeView(AdminIndexView):
@expose("/")
@login_required
def index(self):
session = Session()
DM = models.DagModel
# restrict the dags shown if filter_by_owner and current user is not superuser
do_filter = FILTER_BY_OWNER and (not current_user.is_superuser())
owner_mode = conf.get('webserver', 'OWNER_MODE').strip().lower()
hide_paused_dags_by_default = conf.getboolean('webserver',
'hide_paused_dags_by_default')
show_paused_arg = request.args.get('showPaused', 'None')
def get_int_arg(value, default=0):
try:
return int(value)
except ValueError:
return default
arg_current_page = request.args.get('page', '0')
arg_search_query = request.args.get('search', None)
dags_per_page = PAGE_SIZE
current_page = get_int_arg(arg_current_page, default=0)
if show_paused_arg.strip().lower() == 'false':
hide_paused = True
elif show_paused_arg.strip().lower() == 'true':
hide_paused = False
else:
hide_paused = hide_paused_dags_by_default
# read orm_dags from the db
sql_query = session.query(DM)
if do_filter and owner_mode == 'ldapgroup':
sql_query = sql_query.filter(
~DM.is_subdag,
DM.is_active,
DM.owners.in_(current_user.ldap_groups)
)
elif do_filter and owner_mode == 'user':
sql_query = sql_query.filter(
~DM.is_subdag, DM.is_active,
DM.owners == current_user.user.username
)
else:
sql_query = sql_query.filter(
~DM.is_subdag, DM.is_active
)
# optionally filter out "paused" dags
if hide_paused:
sql_query = sql_query.filter(~DM.is_paused)
orm_dags = {dag.dag_id: dag for dag
in sql_query
.all()}
import_errors = session.query(models.ImportError).all()
for ie in import_errors:
flash(
"Broken DAG: [{ie.filename}] {ie.stacktrace}".format(ie=ie),
"error")
session.expunge_all()
session.commit()
session.close()
# get a list of all non-subdag dags visible to everyone
# optionally filter out "paused" dags
if hide_paused:
unfiltered_webserver_dags = [dag for dag in dagbag.dags.values() if
not dag.parent_dag and not dag.is_paused]
else:
unfiltered_webserver_dags = [dag for dag in dagbag.dags.values() if
not dag.parent_dag]
# optionally filter to get only dags that the user should see
if do_filter and owner_mode == 'ldapgroup':
# only show dags owned by someone in @current_user.ldap_groups
webserver_dags = {
dag.dag_id: dag
for dag in unfiltered_webserver_dags
if dag.owner in current_user.ldap_groups
}
elif do_filter and owner_mode == 'user':
# only show dags owned by @current_user.user.username
webserver_dags = {
dag.dag_id: dag
for dag in unfiltered_webserver_dags
if dag.owner == current_user.user.username
}
else:
webserver_dags = {
dag.dag_id: dag
for dag in unfiltered_webserver_dags
}
if arg_search_query:
lower_search_query = arg_search_query.lower()
# filter by dag_id
webserver_dags_filtered = {
dag_id: dag
for dag_id, dag in webserver_dags.items()
if (lower_search_query in dag_id.lower() or
lower_search_query in dag.owner.lower())
}
all_dag_ids = (set([dag.dag_id for dag in orm_dags.values()
if lower_search_query in dag.dag_id.lower() or
lower_search_query in dag.owners.lower()]) |
set(webserver_dags_filtered.keys()))
sorted_dag_ids = sorted(all_dag_ids)
else:
webserver_dags_filtered = webserver_dags
sorted_dag_ids = sorted(set(orm_dags.keys()) | set(webserver_dags.keys()))
start = current_page * dags_per_page
end = start + dags_per_page
num_of_all_dags = len(sorted_dag_ids)
page_dag_ids = sorted_dag_ids[start:end]
num_of_pages = int(math.ceil(num_of_all_dags / float(dags_per_page)))
auto_complete_data = set()
for dag in webserver_dags_filtered.values():
auto_complete_data.add(dag.dag_id)
auto_complete_data.add(dag.owner)
for dag in orm_dags.values():
auto_complete_data.add(dag.dag_id)
auto_complete_data.add(dag.owners)
return self.render(
'airflow/dags.html',
webserver_dags=webserver_dags_filtered,
orm_dags=orm_dags,
hide_paused=hide_paused,
current_page=current_page,
search_query=arg_search_query if arg_search_query else '',
page_size=dags_per_page,
num_of_pages=num_of_pages,
num_dag_from=start + 1,
num_dag_to=min(end, num_of_all_dags),
num_of_all_dags=num_of_all_dags,
paging=wwwutils.generate_pages(current_page, num_of_pages,
search=arg_search_query,
showPaused=not hide_paused),
dag_ids_in_page=page_dag_ids,
auto_complete_data=auto_complete_data)
class QueryView(wwwutils.DataProfilingMixin, BaseView):
@expose('/', methods=['POST', 'GET'])
@wwwutils.gzipped
def query(self):
session = settings.Session()
dbs = session.query(models.Connection).order_by(
models.Connection.conn_id).all()
session.expunge_all()
db_choices = list(
((db.conn_id, db.conn_id) for db in dbs if db.get_hook()))
conn_id_str = request.form.get('conn_id')
csv = request.form.get('csv') == "true"
sql = request.form.get('sql')
class QueryForm(Form):
conn_id = SelectField("Layout", choices=db_choices)
sql = TextAreaField("SQL", widget=wwwutils.AceEditorWidget())
data = {
'conn_id': conn_id_str,
'sql': sql,
}
results = None
has_data = False
error = False
if conn_id_str:
db = [db for db in dbs if db.conn_id == conn_id_str][0]
hook = db.get_hook()
try:
df = hook.get_pandas_df(wwwutils.limit_sql(sql, QUERY_LIMIT, conn_type=db.conn_type))
# df = hook.get_pandas_df(sql)
has_data = len(df) > 0
df = df.fillna('')
results = df.to_html(
classes=[
'table', 'table-bordered', 'table-striped', 'no-wrap'],
index=False,
na_rep='',
) if has_data else ''
except Exception as e:
flash(str(e), 'error')
error = True
if has_data and len(df) == QUERY_LIMIT:
flash(
"Query output truncated at " + str(QUERY_LIMIT) +
" rows", 'info')
if not has_data and error:
flash('No data', 'error')
if csv:
return Response(
response=df.to_csv(index=False),
status=200,
mimetype="application/text")
form = QueryForm(request.form, data=data)
session.commit()
session.close()
return self.render(
'airflow/query.html', form=form,
title="Ad Hoc Query",
results=results or '',
has_data=has_data)
class AirflowModelView(ModelView):
list_template = 'airflow/model_list.html'
edit_template = 'airflow/model_edit.html'
create_template = 'airflow/model_create.html'
column_display_actions = True
page_size = PAGE_SIZE
class ModelViewOnly(wwwutils.LoginMixin, AirflowModelView):
"""
Modifying the base ModelView class for non edit, browse only operations
"""
named_filter_urls = True
can_create = False
can_edit = False
can_delete = False
column_display_pk = True
class PoolModelView(wwwutils.SuperUserMixin, AirflowModelView):
column_list = ('pool', 'slots', 'used_slots', 'queued_slots')
column_formatters = dict(
pool=pool_link, used_slots=fused_slots, queued_slots=fqueued_slots)
named_filter_urls = True
form_args = {
'pool': {
'validators': [
validators.DataRequired(),
]
}
}
class SlaMissModelView(wwwutils.SuperUserMixin, ModelViewOnly):
verbose_name_plural = "SLA misses"
verbose_name = "SLA miss"
column_list = (
'dag_id', 'task_id', 'execution_date', 'email_sent', 'timestamp')
column_formatters = dict(
task_id=task_instance_link,
execution_date=datetime_f,
timestamp=datetime_f,
dag_id=dag_link)
named_filter_urls = True
column_searchable_list = ('dag_id', 'task_id',)
column_filters = (
'dag_id', 'task_id', 'email_sent', 'timestamp', 'execution_date')
form_widget_args = {
'email_sent': {'disabled': True},
'timestamp': {'disabled': True},
}
class ChartModelView(wwwutils.DataProfilingMixin, AirflowModelView):
verbose_name = "chart"
verbose_name_plural = "charts"
form_columns = (
'label',
'owner',
'conn_id',
'chart_type',
'show_datatable',
'x_is_date',
'y_log_scale',
'show_sql',
'height',
'sql_layout',
'sql',
'default_params',
)
column_list = (
'label',
'conn_id',
'chart_type',
'owner',
'last_modified',
)
column_sortable_list = (
'label',
'conn_id',
'chart_type',
('owner', 'owner.username'),
'last_modified',
)
column_formatters = dict(label=label_link, last_modified=datetime_f)
column_default_sort = ('last_modified', True)
create_template = 'airflow/chart/create.html'
edit_template = 'airflow/chart/edit.html'
column_filters = ('label', 'owner.username', 'conn_id')
column_searchable_list = ('owner.username', 'label', 'sql')
column_descriptions = {
'label': "Can include {{ templated_fields }} and {{ macros }}",
'chart_type': "The type of chart to be displayed",
'sql': "Can include {{ templated_fields }} and {{ macros }}.",
'height': "Height of the chart, in pixels.",
'conn_id': "Source database to run the query against",
'x_is_date': (
"Whether the X axis should be casted as a date field. Expect most "
"intelligible date formats to get casted properly."
),
'owner': (
"The chart's owner, mostly used for reference and filtering in "
"the list view."
),
'show_datatable':
"Whether to display an interactive data table under the chart.",
'default_params': (
'A dictionary of {"key": "values",} that define what the '
'templated fields (parameters) values should be by default. '
'To be valid, it needs to "eval" as a Python dict. '
'The key values will show up in the url\'s querystring '
'and can be altered there.'
),
'show_sql': "Whether to display the SQL statement as a collapsible "
"section in the chart page.",
'y_log_scale': "Whether to use a log scale for the Y axis.",
'sql_layout': (
"Defines the layout of the SQL that the application should "
"expect. Depending on the tables you are sourcing from, it may "
"make more sense to pivot / unpivot the metrics."
),
}
column_labels = {
'sql': "SQL",
'height': "Chart Height",
'sql_layout': "SQL Layout",
'show_sql': "Display the SQL Statement",
'default_params': "Default Parameters",
}
form_choices = {
'chart_type': [
('line', 'Line Chart'),
('spline', 'Spline Chart'),
('bar', 'Bar Chart'),
('column', 'Column Chart'),
('area', 'Overlapping Area Chart'),
('stacked_area', 'Stacked Area Chart'),
('percent_area', 'Percent Area Chart'),
('datatable', 'No chart, data table only'),
],
'sql_layout': [
('series', 'SELECT series, x, y FROM ...'),
('columns', 'SELECT x, y (series 1), y (series 2), ... FROM ...'),
],
'conn_id': [
(c.conn_id, c.conn_id)
for c in (
Session().query(models.Connection.conn_id)
.group_by(models.Connection.conn_id)
)
]
}
def on_model_change(self, form, model, is_created=True):
if model.iteration_no is None:
model.iteration_no = 0
else:
model.iteration_no += 1
if not model.user_id and current_user and hasattr(current_user, 'id'):
model.user_id = current_user.id
model.last_modified = datetime.utcnow()
chart_mapping = (
('line', 'lineChart'),
('spline', 'lineChart'),
('bar', 'multiBarChart'),
('column', 'multiBarChart'),
('area', 'stackedAreaChart'),
('stacked_area', 'stackedAreaChart'),
('percent_area', 'stackedAreaChart'),
('datatable', 'datatable'),
)
chart_mapping = dict(chart_mapping)
class KnownEventView(wwwutils.DataProfilingMixin, AirflowModelView):
verbose_name = "known event"
verbose_name_plural = "known events"
form_columns = (
'label',
'event_type',
'start_date',
'end_date',
'reported_by',
'description',
)
form_args = {
'label': {
'validators': [
validators.DataRequired(),
],
},
'event_type': {
'validators': [
validators.DataRequired(),
],
},
'start_date': {
'validators': [
validators.DataRequired(),
],
},
'end_date': {
'validators': [
validators.DataRequired(),
GreaterEqualThan(fieldname='start_date'),
],
},
'reported_by': {
'validators': [
validators.DataRequired(),
],
}
}
column_list = (
'label',
'event_type',
'start_date',
'end_date',
'reported_by',
)
column_default_sort = ("start_date", True)
column_sortable_list = (
'label',
('event_type', 'event_type.know_event_type'),
'start_date',
'end_date',
('reported_by', 'reported_by.username'),
)
class KnownEventTypeView(wwwutils.DataProfilingMixin, AirflowModelView):
pass
# NOTE: For debugging / troubleshooting
# mv = KnowEventTypeView(
# models.KnownEventType,
# Session, name="Known Event Types", category="Manage")
# admin.add_view(mv)
# class DagPickleView(SuperUserMixin, ModelView):
# pass
# mv = DagPickleView(
# models.DagPickle,
# Session, name="Pickles", category="Manage")
# admin.add_view(mv)
class VariableView(wwwutils.DataProfilingMixin, AirflowModelView):
verbose_name = "Variable"
verbose_name_plural = "Variables"
list_template = 'airflow/variable_list.html'
def hidden_field_formatter(view, context, model, name):
if wwwutils.should_hide_value_for_key(model.key):
return Markup('*' * 8)
try:
return getattr(model, name)
except AirflowException:
return Markup('<span class="label label-danger">Invalid</span>')
form_columns = (
'key',
'val',
)
column_list = ('key', 'val', 'is_encrypted',)
column_filters = ('key', 'val')
column_searchable_list = ('key', 'val')
column_default_sort = ('key', False)
form_widget_args = {
'is_encrypted': {'disabled': True},
'val': {
'rows': 20,
}
}
form_args = {
'key': {
'validators': {
validators.DataRequired(),
},
},
}
column_sortable_list = (
'key',
'val',
'is_encrypted',
)
column_formatters = {
'val': hidden_field_formatter,
}
# Default flask-admin export functionality doesn't handle serialized json
@action('varexport', 'Export', None)
def action_varexport(self, ids):
V = models.Variable
session = settings.Session()
qry = session.query(V).filter(V.id.in_(ids)).all()
session.close()
var_dict = {}
d = json.JSONDecoder()
for var in qry:
val = None
try:
val = d.decode(var.val)
except:
val = var.val
var_dict[var.key] = val
response = make_response(json.dumps(var_dict, sort_keys=True, indent=4))
response.headers["Content-Disposition"] = "attachment; filename=variables.json"
return response
def on_form_prefill(self, form, id):
if wwwutils.should_hide_value_for_key(form.key.data):
form.val.data = '*' * 8
class XComView(wwwutils.SuperUserMixin, AirflowModelView):
verbose_name = "XCom"
verbose_name_plural = "XComs"
form_columns = (
'key',
'value',
'execution_date',
'task_id',
'dag_id',
)
form_extra_fields = {
'value': StringField('Value'),
}
column_filters = ('key', 'timestamp', 'execution_date', 'task_id', 'dag_id')
column_searchable_list = ('key', 'timestamp', 'execution_date', 'task_id', 'dag_id')
class JobModelView(ModelViewOnly):
verbose_name_plural = "jobs"
verbose_name = "job"
column_display_actions = False
column_default_sort = ('start_date', True)
column_filters = (
'job_type', 'dag_id', 'state',
'unixname', 'hostname', 'start_date', 'end_date', 'latest_heartbeat')
column_formatters = dict(
start_date=datetime_f,
end_date=datetime_f,
hostname=nobr_f,
state=state_f,
latest_heartbeat=datetime_f)
class DagRunModelView(ModelViewOnly):
verbose_name_plural = "DAG Runs"
can_edit = True
can_create = True
column_editable_list = ('state',)
verbose_name = "dag run"
column_default_sort = ('execution_date', True)
form_choices = {
'state': [
('success', 'success'),
('running', 'running'),
('failed', 'failed'),
],
}
form_args = dict(
dag_id=dict(validators=[validators.DataRequired()])
)
column_list = (
'state', 'dag_id', 'execution_date', 'run_id', 'external_trigger')
column_filters = column_list
column_searchable_list = ('dag_id', 'state', 'run_id')
column_formatters = dict(
execution_date=datetime_f,
state=state_f,
start_date=datetime_f,
dag_id=dag_link)
@action('new_delete', "Delete", "Are you sure you want to delete selected records?")
def action_new_delete(self, ids):
session = settings.Session()
deleted = set(session.query(models.DagRun)
.filter(models.DagRun.id.in_(ids))
.all())
session.query(models.DagRun) \
.filter(models.DagRun.id.in_(ids)) \
.delete(synchronize_session='fetch')
session.commit()
dirty_ids = []
for row in deleted:
dirty_ids.append(row.dag_id)
models.DagStat.update(dirty_ids, dirty_only=False, session=session)
session.close()
@action('set_running', "Set state to 'running'", None)
def action_set_running(self, ids):
self.set_dagrun_state(ids, State.RUNNING)
@action('set_failed', "Set state to 'failed'", None)
def action_set_failed(self, ids):
self.set_dagrun_state(ids, State.FAILED)
@action('set_success', "Set state to 'success'", None)
def action_set_success(self, ids):
self.set_dagrun_state(ids, State.SUCCESS)
@provide_session
def set_dagrun_state(self, ids, target_state, session=None):
try:
DR = models.DagRun
count = 0
dirty_ids = []
for dr in session.query(DR).filter(DR.id.in_(ids)).all():
dirty_ids.append(dr.dag_id)
count += 1
dr.state = target_state
if target_state == State.RUNNING:
dr.start_date = datetime.utcnow()
else:
dr.end_date = datetime.utcnow()
session.commit()
models.DagStat.update(dirty_ids, session=session)
flash(
"{count} dag runs were set to '{target_state}'".format(**locals()))
except Exception as ex:
if not self.handle_view_exception(ex):
raise Exception("Ooops")
flash('Failed to set state', 'error')
class LogModelView(ModelViewOnly):
verbose_name_plural = "logs"
verbose_name = "log"
column_display_actions = False
column_default_sort = ('dttm', True)
column_filters = ('dag_id', 'task_id', 'execution_date')
column_formatters = dict(
dttm=datetime_f, execution_date=datetime_f, dag_id=dag_link)
class TaskInstanceModelView(ModelViewOnly):
verbose_name_plural = "task instances"
verbose_name = "task instance"
column_filters = (
'state', 'dag_id', 'task_id', 'execution_date', 'hostname',
'queue', 'pool', 'operator', 'start_date', 'end_date')
named_filter_urls = True
column_formatters = dict(
log_url=log_url_formatter,
task_id=task_instance_link,
hostname=nobr_f,
state=state_f,
execution_date=datetime_f,
start_date=datetime_f,
end_date=datetime_f,
queued_dttm=datetime_f,
dag_id=dag_link, duration=duration_f)
column_searchable_list = ('dag_id', 'task_id', 'state')
column_default_sort = ('job_id', True)
form_choices = {
'state': [
('success', 'success'),
('running', 'running'),
('failed', 'failed'),
],
}
column_list = (
'state', 'dag_id', 'task_id', 'execution_date', 'operator',
'start_date', 'end_date', 'duration', 'job_id', 'hostname',
'unixname', 'priority_weight', 'queue', 'queued_dttm', 'try_number',
'pool', 'log_url')
can_delete = True
page_size = PAGE_SIZE
@action('set_running', "Set state to 'running'", None)
def action_set_running(self, ids):
self.set_task_instance_state(ids, State.RUNNING)
@action('set_failed', "Set state to 'failed'", None)
def action_set_failed(self, ids):
self.set_task_instance_state(ids, State.FAILED)
@action('set_success', "Set state to 'success'", None)
def action_set_success(self, ids):
self.set_task_instance_state(ids, State.SUCCESS)
@action('set_retry', "Set state to 'up_for_retry'", None)
def action_set_retry(self, ids):
self.set_task_instance_state(ids, State.UP_FOR_RETRY)
@action('delete',
lazy_gettext('Delete'),
lazy_gettext('Are you sure you want to delete selected records?'))
def action_delete(self, ids):
"""
As a workaround for AIRFLOW-277, this method overrides Flask-Admin's ModelView.action_delete().
TODO: this method should be removed once the below bug is fixed on Flask-Admin side.
https://github.com/flask-admin/flask-admin/issues/1226
"""
if 'sqlite' in conf.get('core', 'sql_alchemy_conn'):
self.delete_task_instances(ids)
else:
super(TaskInstanceModelView, self).action_delete(ids)
@provide_session
def set_task_instance_state(self, ids, target_state, session=None):
try:
TI = models.TaskInstance
count = len(ids)
for id in ids:
task_id, dag_id, execution_date = id.split(',')
execution_date = datetime.strptime(execution_date, '%Y-%m-%d %H:%M:%S')
ti = session.query(TI).filter(TI.task_id == task_id,
TI.dag_id == dag_id,
TI.execution_date == execution_date).one()
ti.state = target_state
session.commit()
flash(
"{count} task instances were set to '{target_state}'".format(**locals()))
except Exception as ex:
if not self.handle_view_exception(ex):
raise Exception("Ooops")
flash('Failed to set state', 'error')
@provide_session
def delete_task_instances(self, ids, session=None):
try:
TI = models.TaskInstance
count = 0
for id in ids:
task_id, dag_id, execution_date = id.split(',')
execution_date = datetime.strptime(execution_date, '%Y-%m-%d %H:%M:%S')
count += session.query(TI).filter(TI.task_id == task_id,
TI.dag_id == dag_id,
TI.execution_date == execution_date).delete()
session.commit()
flash("{count} task instances were deleted".format(**locals()))
except Exception as ex:
if not self.handle_view_exception(ex):
raise Exception("Ooops")
flash('Failed to delete', 'error')
def get_one(self, id):
"""
As a workaround for AIRFLOW-252, this method overrides Flask-Admin's ModelView.get_one().
TODO: this method should be removed once the below bug is fixed on Flask-Admin side.
https://github.com/flask-admin/flask-admin/issues/1226
"""
task_id, dag_id, execution_date = iterdecode(id)
execution_date = dateutil.parser.parse(execution_date)
return self.session.query(self.model).get((task_id, dag_id, execution_date))
class ConnectionModelView(wwwutils.SuperUserMixin, AirflowModelView):
create_template = 'airflow/conn_create.html'
edit_template = 'airflow/conn_edit.html'
list_template = 'airflow/conn_list.html'
form_columns = (
'conn_id',
'conn_type',
'host',
'schema',
'login',
'password',
'port',
'extra',
'extra__jdbc__drv_path',
'extra__jdbc__drv_clsname',
'extra__google_cloud_platform__project',
'extra__google_cloud_platform__key_path',
'extra__google_cloud_platform__keyfile_dict',
'extra__google_cloud_platform__scope',
)
verbose_name = "Connection"
verbose_name_plural = "Connections"
column_default_sort = ('conn_id', False)
column_list = ('conn_id', 'conn_type', 'host', 'port', 'is_encrypted', 'is_extra_encrypted',)
form_overrides = dict(_password=PasswordField, _extra=TextAreaField)
form_widget_args = {
'is_extra_encrypted': {'disabled': True},
'is_encrypted': {'disabled': True},
}
# Used to customized the form, the forms elements get rendered
# and results are stored in the extra field as json. All of these
# need to be prefixed with extra__ and then the conn_type ___ as in
# extra__{conn_type}__name. You can also hide form elements and rename
# others from the connection_form.js file
form_extra_fields = {
'extra__jdbc__drv_path': StringField('Driver Path'),
'extra__jdbc__drv_clsname': StringField('Driver Class'),
'extra__google_cloud_platform__project': StringField('Project Id'),
'extra__google_cloud_platform__key_path': StringField('Keyfile Path'),
'extra__google_cloud_platform__keyfile_dict': PasswordField('Keyfile JSON'),
'extra__google_cloud_platform__scope': StringField('Scopes (comma seperated)'),
}
form_choices = {
'conn_type': models.Connection._types
}
def on_model_change(self, form, model, is_created):
formdata = form.data
if formdata['conn_type'] in ['jdbc', 'google_cloud_platform']:
extra = {
key: formdata[key]
for key in self.form_extra_fields.keys() if key in formdata}
model.extra = json.dumps(extra)
@classmethod
def alert_fernet_key(cls):
fk = None
try:
fk = conf.get('core', 'fernet_key')
except:
pass
return fk is None
@classmethod
def is_secure(cls):
"""
Used to display a message in the Connection list view making it clear
that the passwords and `extra` field can't be encrypted.
"""
is_secure = False
try:
import cryptography
conf.get('core', 'fernet_key')
is_secure = True
except:
pass
return is_secure
def on_form_prefill(self, form, id):
try:
d = json.loads(form.data.get('extra', '{}'))
except Exception:
d = {}
for field in list(self.form_extra_fields.keys()):
value = d.get(field, '')
if value:
field = getattr(form, field)
field.data = value
class UserModelView(wwwutils.SuperUserMixin, AirflowModelView):
verbose_name = "User"
verbose_name_plural = "Users"
column_default_sort = 'username'
class VersionView(wwwutils.SuperUserMixin, BaseView):
@expose('/')
def version(self):
# Look at the version from setup.py
try:
airflow_version = pkg_resources.require("apache-airflow")[0].version
except Exception as e:
airflow_version = None
logging.error(e)
# Get the Git repo and git hash
git_version = None
try:
with open(os.path.join(*[settings.AIRFLOW_HOME, 'airflow', 'git_version'])) as f:
git_version = f.readline()
except Exception as e:
logging.error(e)
# Render information
title = "Version Info"
return self.render('airflow/version.html',
title=title,
airflow_version=airflow_version,
git_version=git_version)
class ConfigurationView(wwwutils.SuperUserMixin, BaseView):
@expose('/')
def conf(self):
raw = request.args.get('raw') == "true"
title = "Airflow Configuration"
subtitle = conf.AIRFLOW_CONFIG
if conf.getboolean("webserver", "expose_config"):
with open(conf.AIRFLOW_CONFIG, 'r') as f:
config = f.read()
table = [(section, key, value, source)
for section, parameters in conf.as_dict(True, True).items()
for key, (value, source) in parameters.items()]
else:
config = (
"# You Airflow administrator chose not to expose the "
"configuration, most likely for security reasons.")
table = None
if raw:
return Response(
response=config,
status=200,
mimetype="application/text")
else:
code_html = Markup(highlight(
config,
lexers.IniLexer(), # Lexer call
HtmlFormatter(noclasses=True))
)
return self.render(
'airflow/config.html',
pre_subtitle=settings.HEADER + " v" + airflow.__version__,
code_html=code_html, title=title, subtitle=subtitle,
table=table)
class DagModelView(wwwutils.SuperUserMixin, ModelView):
column_list = ('dag_id', 'owners')
column_editable_list = ('is_paused',)
form_excluded_columns = ('is_subdag', 'is_active')
column_searchable_list = ('dag_id',)
column_filters = (
'dag_id', 'owners', 'is_paused', 'is_active', 'is_subdag',
'last_scheduler_run', 'last_expired')
form_widget_args = {
'last_scheduler_run': {'disabled': True},
'fileloc': {'disabled': True},
'is_paused': {'disabled': True},
'last_pickled': {'disabled': True},
'pickle_id': {'disabled': True},
'last_loaded': {'disabled': True},
'last_expired': {'disabled': True},
'pickle_size': {'disabled': True},
'scheduler_lock': {'disabled': True},
'owners': {'disabled': True},
}
column_formatters = dict(
dag_id=dag_link,
)
can_delete = False
can_create = False
page_size = PAGE_SIZE
list_template = 'airflow/list_dags.html'
named_filter_urls = True
def get_query(self):
"""
Default filters for model
"""
return (
super(DagModelView, self)
.get_query()
.filter(or_(models.DagModel.is_active, models.DagModel.is_paused))
.filter(~models.DagModel.is_subdag)
)
def get_count_query(self):
"""
Default filters for model
"""
return (
super(DagModelView, self)
.get_count_query()
.filter(models.DagModel.is_active)
.filter(~models.DagModel.is_subdag)
)