src/registry/registry_init.c
// SPDX-License-Identifier: GPL-3.0-or-later
#include "daemon/common.h"
#include "registry_internals.h"
void registry_db_stats(void) {
size_t persons = 0;
size_t persons_urls = 0;
size_t max_urls_per_person = 0;
REGISTRY_PERSON *p;
dfe_start_read(registry.persons, p) {
persons++;
size_t urls = 0;
for(REGISTRY_PERSON_URL *pu = p->person_urls ; pu ;pu = pu->next)
urls++;
if(urls > max_urls_per_person)
max_urls_per_person = urls;
persons_urls += urls;
}
dfe_done(p);
size_t machines = 0;
size_t machines_urls = 0;
size_t max_urls_per_machine = 0;
REGISTRY_MACHINE *m;
dfe_start_read(registry.machines, m) {
machines++;
size_t urls = 0;
for(REGISTRY_MACHINE_URL *mu = m->machine_urls ; mu ;mu = mu->next)
urls++;
if(urls > max_urls_per_machine)
max_urls_per_machine = urls;
machines_urls += urls;
}
dfe_done(m);
netdata_log_info("REGISTRY: persons %zu, person_urls %zu, max_urls_per_person %zu, "
"machines %zu, machine_urls %zu, max_urls_per_machine %zu",
persons, persons_urls, max_urls_per_person,
machines, machines_urls, max_urls_per_machine);
}
void registry_generate_curl_urls(void) {
FILE *fp = fopen("/tmp/registry.curl", "w+");
if (unlikely(!fp))
return;
REGISTRY_PERSON *p;
dfe_start_read(registry.persons, p) {
for(REGISTRY_PERSON_URL *pu = p->person_urls ; pu ;pu = pu->next) {
fprintf(fp, "do_curl '%s' '%s' '%s'\n", p->guid, pu->machine->guid, string2str(pu->url));
}
}
dfe_done(p);
fclose(fp);
}
int registry_init(void) {
char filename[FILENAME_MAX + 1];
// registry enabled?
if(web_server_mode != WEB_SERVER_MODE_NONE) {
registry.enabled = config_get_boolean(CONFIG_SECTION_REGISTRY, "enabled", 0);
}
else {
netdata_log_info("Registry is disabled - use the central netdata");
config_set_boolean(CONFIG_SECTION_REGISTRY, "enabled", 0);
registry.enabled = 0;
}
// path names
snprintfz(filename, FILENAME_MAX, "%s/registry", netdata_configured_varlib_dir);
registry.pathname = config_get(CONFIG_SECTION_DIRECTORIES, "registry", filename);
if(mkdir(registry.pathname, 0770) == -1 && errno != EEXIST)
fatal("Cannot create directory '%s'.", registry.pathname);
// filenames
snprintfz(filename, FILENAME_MAX, "%s/netdata.public.unique.id", registry.pathname);
registry.machine_guid_filename = config_get(CONFIG_SECTION_REGISTRY, "netdata unique id file", filename);
snprintfz(filename, FILENAME_MAX, "%s/registry.db", registry.pathname);
registry.db_filename = config_get(CONFIG_SECTION_REGISTRY, "registry db file", filename);
snprintfz(filename, FILENAME_MAX, "%s/registry-log.db", registry.pathname);
registry.log_filename = config_get(CONFIG_SECTION_REGISTRY, "registry log file", filename);
// configuration options
registry.save_registry_every_entries = (unsigned long long)config_get_number(CONFIG_SECTION_REGISTRY, "registry save db every new entries", 1000000);
registry.persons_expiration = config_get_number(CONFIG_SECTION_REGISTRY, "registry expire idle persons days", 365) * 86400;
registry.registry_domain = config_get(CONFIG_SECTION_REGISTRY, "registry domain", "");
registry.registry_to_announce = config_get(CONFIG_SECTION_REGISTRY, "registry to announce", "https://registry.my-netdata.io");
registry.hostname = config_get(CONFIG_SECTION_REGISTRY, "registry hostname", netdata_configured_hostname);
registry.verify_cookies_redirects = config_get_boolean(CONFIG_SECTION_REGISTRY, "verify browser cookies support", 1);
registry.enable_cookies_samesite_secure = config_get_boolean(CONFIG_SECTION_REGISTRY, "enable cookies SameSite and Secure", 1);
registry_update_cloud_base_url();
setenv("NETDATA_REGISTRY_HOSTNAME", registry.hostname, 1);
setenv("NETDATA_REGISTRY_URL", registry.registry_to_announce, 1);
registry.max_url_length = (size_t)config_get_number(CONFIG_SECTION_REGISTRY, "max URL length", 1024);
if(registry.max_url_length < 10) {
registry.max_url_length = 10;
config_set_number(CONFIG_SECTION_REGISTRY, "max URL length", (long long)registry.max_url_length);
}
registry.max_name_length = (size_t)config_get_number(CONFIG_SECTION_REGISTRY, "max URL name length", 50);
if(registry.max_name_length < 10) {
registry.max_name_length = 10;
config_set_number(CONFIG_SECTION_REGISTRY, "max URL name length", (long long)registry.max_name_length);
}
bool use_mmap = config_get_boolean(CONFIG_SECTION_REGISTRY, "use mmap", false);
// initialize entries counters
registry.persons_count = 0;
registry.machines_count = 0;
registry.usages_count = 0;
registry.persons_urls_count = 0;
registry.machines_urls_count = 0;
// initialize locks
netdata_mutex_init(®istry.lock);
// load the registry database
if(registry.enabled) {
// create dictionaries
registry.persons = dictionary_create(REGISTRY_DICTIONARY_OPTIONS);
registry.machines = dictionary_create(REGISTRY_DICTIONARY_OPTIONS);
// initialize the allocators
size_t min_page_size = 4 * 1024;
size_t max_page_size = 1024 * 1024;
if(use_mmap) {
min_page_size = 100 * 1024 * 1024;
max_page_size = 512 * 1024 * 1024;
}
registry.persons_aral = aral_create("registry_persons", sizeof(REGISTRY_PERSON),
min_page_size / sizeof(REGISTRY_PERSON), max_page_size,
®istry.aral_stats,
"registry_persons",
&netdata_configured_cache_dir,
use_mmap, true);
registry.machines_aral = aral_create("registry_machines", sizeof(REGISTRY_MACHINE),
min_page_size / sizeof(REGISTRY_MACHINE), max_page_size,
®istry.aral_stats,
"registry_machines",
&netdata_configured_cache_dir,
use_mmap, true);
registry.person_urls_aral = aral_create("registry_person_urls", sizeof(REGISTRY_PERSON_URL),
min_page_size / sizeof(REGISTRY_PERSON_URL), max_page_size,
®istry.aral_stats,
"registry_person_urls",
&netdata_configured_cache_dir,
use_mmap, true);
registry.machine_urls_aral = aral_create("registry_machine_urls", sizeof(REGISTRY_MACHINE_URL),
min_page_size / sizeof(REGISTRY_MACHINE_URL), max_page_size,
®istry.aral_stats,
"registry_machine_urls",
&netdata_configured_cache_dir,
use_mmap, true);
registry_log_open();
registry_db_load();
registry_log_load();
if(unlikely(registry_db_should_be_saved()))
registry_db_save();
// registry_db_stats();
// registry_generate_curl_urls();
// exit(0);
}
return 0;
}
static int machine_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *entry, void *data __maybe_unused) {
REGISTRY_MACHINE *m = (REGISTRY_MACHINE *)entry;
int count = 0;
while(m->machine_urls) {
registry_machine_url_unlink_from_machine_and_free(m, m->machine_urls);
count++;
}
aral_freez(registry.machines_aral, m);
return count + 1;
}
static int registry_person_del_callback(const DICTIONARY_ITEM *item __maybe_unused, void *entry, void *d __maybe_unused) {
REGISTRY_PERSON *p = (REGISTRY_PERSON *)entry;
netdata_log_debug(D_REGISTRY, "Registry: registry_person_del('%s'): deleting person", p->guid);
while(p->person_urls)
registry_person_unlink_from_url(p, (REGISTRY_PERSON_URL *)p->person_urls);
//debug(D_REGISTRY, "Registry: deleting person '%s' from persons registry", p->guid);
//dictionary_del(registry.persons, p->guid);
netdata_log_debug(D_REGISTRY, "Registry: freeing person '%s'", p->guid);
aral_freez(registry.persons_aral, p);
return 1;
}
void registry_free(void) {
if(!registry.enabled) return;
registry.enabled = false;
netdata_log_debug(D_REGISTRY, "Registry: destroying persons dictionary");
dictionary_walkthrough_read(registry.persons, registry_person_del_callback, NULL);
dictionary_destroy(registry.persons);
registry.persons = NULL;
netdata_log_debug(D_REGISTRY, "Registry: destroying machines dictionary");
dictionary_walkthrough_read(registry.machines, machine_delete_callback, NULL);
dictionary_destroy(registry.machines);
registry.machines = NULL;
aral_destroy(registry.persons_aral);
aral_destroy(registry.machines_aral);
aral_destroy(registry.person_urls_aral);
aral_destroy(registry.machine_urls_aral);
registry.persons_aral = NULL;
registry.machines_aral = NULL;
registry.person_urls_aral = NULL;
registry.machine_urls_aral = NULL;
}