cmd/ipfs-cluster-service/main.go
// The ipfs-cluster-service application.
package main
import (
"bufio"
"context"
"errors"
"fmt"
"io"
"os"
"os/user"
"path/filepath"
"strings"
ipfslite "github.com/hsanjuan/ipfs-lite"
ipfscluster "github.com/ipfs-cluster/ipfs-cluster"
"github.com/ipfs-cluster/ipfs-cluster/api"
"github.com/ipfs-cluster/ipfs-cluster/cmdutils"
"github.com/ipfs-cluster/ipfs-cluster/consensus/crdt"
"github.com/ipfs-cluster/ipfs-cluster/pstoremgr"
"github.com/ipfs-cluster/ipfs-cluster/version"
peer "github.com/libp2p/go-libp2p/core/peer"
ma "github.com/multiformats/go-multiaddr"
semver "github.com/blang/semver"
"github.com/ipfs/go-datastore"
"github.com/ipfs/go-datastore/namespace"
dscrdt "github.com/ipfs/go-ds-crdt"
logging "github.com/ipfs/go-log/v2"
cli "github.com/urfave/cli"
)
// ProgramName of this application
const programName = "ipfs-cluster-service"
// flag defaults
const (
defaultLogLevel = "info"
defaultConsensus = "crdt"
defaultDatastore = "pebble"
)
const (
stateCleanupPrompt = "The peer state will be removed. Existing pins may be lost."
configurationOverwritePrompt = "The configuration file will be overwritten."
)
// We store a commit id here
var commit string
// Description provides a short summary of the functionality of this tool
var Description = fmt.Sprintf(`
%s runs an IPFS Cluster peer.
A peer participates in the cluster consensus, follows a distributed log
of pinning and unpinning requests and manages pinning operations to a
configured IPFS daemon.
This peer also provides an API for cluster management, an IPFS Proxy API which
forwards requests to IPFS and a number of components for internal communication
using LibP2P. This is a simplified view of the components:
+------------------+
| ipfs-cluster-ctl |
+---------+--------+
|
| HTTP(s)
ipfs-cluster-service | HTTP
+----------+--------+--v--+----------------------+ +-------------+
| RPC | Peer 1 | API | IPFS Connector/Proxy +------> IPFS daemon |
+----^-----+--------+-----+----------------------+ +-------------+
| libp2p
|
+----v-----+--------+-----+----------------------+ +-------------+
| RPC | Peer 2 | API | IPFS Connector/Proxy +------> IPFS daemon |
+----^-----+--------+-----+----------------------+ +-------------+
|
|
+----v-----+--------+-----+----------------------+ +-------------+
| RPC | Peer 3 | API | IPFS Connector/Proxy +------> IPFS daemon |
+----------+--------+-----+----------------------+ +-------------+
%s needs valid configuration and identity files to run.
These are independent from IPFS. The identity includes its own
libp2p key-pair. They can be initialized with "init" and their
default locations are ~/%s/%s
and ~/%s/%s.
For feedback, bug reports or any additional information, visit
https://github.com/ipfs-cluster/ipfs-cluster.
EXAMPLES:
Initial configuration:
$ ipfs-cluster-service init
Launch a cluster:
$ ipfs-cluster-service daemon
Launch a peer and join existing cluster:
$ ipfs-cluster-service daemon --bootstrap /ip4/192.168.1.2/tcp/9096/p2p/QmPSoSaPXpyunaBwHs1rZBKYSqRV4bLRk32VGYLuvdrypL
Customize logs using --loglevel flag. To customize component-level
logging pass a comma-separated list of component-identifer:log-level
pair or without identifier for overall loglevel. Valid loglevels
are critical, error, warning, notice, info and debug.
$ ipfs-cluster-service --loglevel info,cluster:debug,pintracker:debug daemon
`,
programName,
programName,
DefaultFolder,
DefaultConfigFile,
DefaultFolder,
DefaultIdentityFile,
)
var logger = logging.Logger("service")
// Default location for the configurations and data
var (
// DefaultFolder is the name of the cluster folder
DefaultFolder = ".ipfs-cluster"
// DefaultPath is set on init() to $HOME/DefaultFolder
// and holds all the ipfs-cluster data
DefaultPath string
// The name of the configuration file inside DefaultPath
DefaultConfigFile = "service.json"
// The name of the identity file inside DefaultPath
DefaultIdentityFile = "identity.json"
)
var (
configPath string
identityPath string
)
func init() {
// Set build information.
if build, err := semver.NewBuildVersion(commit); err == nil {
version.Version.Build = []string{"git" + build}
}
// We try guessing user's home from the HOME variable. This
// allows HOME hacks for things like Snapcraft builds. HOME
// should be set in all UNIX by the OS. Alternatively, we fall back to
// usr.HomeDir (which should work on Windows etc.).
home := os.Getenv("HOME")
if home == "" {
usr, err := user.Current()
if err != nil {
panic(fmt.Sprintf("cannot get current user: %s", err))
}
home = usr.HomeDir
}
DefaultPath = filepath.Join(home, DefaultFolder)
}
func out(m string, a ...interface{}) {
fmt.Fprintf(os.Stderr, m, a...)
}
func checkErr(doing string, err error, args ...interface{}) {
if err != nil {
if len(args) > 0 {
doing = fmt.Sprintf(doing, args...)
}
out("error %s: %s\n", doing, err)
err = locker.tryUnlock()
if err != nil {
out("error releasing execution lock: %s\n", err)
}
os.Exit(1)
}
}
func main() {
app := cli.NewApp()
app.Name = programName
app.Usage = "IPFS Cluster peer"
app.Description = Description
//app.Copyright = "© Protocol Labs, Inc."
app.Version = version.Version.String()
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "config, c",
Value: DefaultPath,
Usage: "path to the configuration and data `FOLDER`",
EnvVar: "IPFS_CLUSTER_PATH",
},
cli.BoolFlag{
Name: "force, f",
Usage: "forcefully proceed with some actions. i.e. overwriting configuration",
},
cli.BoolFlag{
Name: "debug, d",
Usage: "enable full debug logging (very verbose)",
},
cli.StringFlag{
Name: "loglevel, l",
EnvVar: "IPFS_CLUSTER_LOG_LEVEL",
Usage: "set overall and component-wise log levels",
},
}
app.Before = func(c *cli.Context) error {
absPath, err := filepath.Abs(c.String("config"))
if err != nil {
return err
}
configPath = filepath.Join(absPath, DefaultConfigFile)
identityPath = filepath.Join(absPath, DefaultIdentityFile)
err = setupLogLevel(c.Bool("debug"), c.String("loglevel"))
if err != nil {
return err
}
locker = &lock{path: absPath}
return nil
}
app.Commands = []cli.Command{
{
Name: "init",
Usage: "Creates a configuration and generates an identity",
Description: fmt.Sprintf(`
This command will initialize a new %s configuration file and, if it
does already exist, generate a new %s for %s.
If the optional [source-url] is given, the generated configuration file
will refer to it. The source configuration will be fetched from its source
URL during the launch of the daemon. If not, a default standard configuration
file will be created.
In the latter case, a cluster secret will be generated as required
by %s. Alternatively, this secret can be manually
provided with --custom-secret (in which case it will be prompted), or
by setting the CLUSTER_SECRET environment variable.
The --consensus flag allows to select an alternative consensus components for
in the newly-generated configuration.
Note that the --force flag allows to overwrite an existing
configuration with default values. To generate a new identity, please
remove the %s file first and clean any Raft state.
By default, an empty peerstore file will be created too. Initial contents can
be provided with the --peers flag. Depending on the chosen consensus, the
"trusted_peers" list in the "crdt" configuration section and the
"init_peerset" list in the "raft" configuration section will be prefilled to
the peer IDs in the given multiaddresses.
`,
DefaultConfigFile,
DefaultIdentityFile,
programName,
programName,
DefaultIdentityFile,
),
ArgsUsage: "[http-source-url]",
Flags: []cli.Flag{
cli.StringFlag{
Name: "consensus",
Usage: "select consensus: 'crdt' or 'raft'",
Value: defaultConsensus,
},
cli.StringFlag{
Name: "datastore",
Usage: "select datastore: 'badger', 'badger3', 'leveldb' or 'pebble'",
Value: defaultDatastore,
},
cli.BoolFlag{
Name: "custom-secret, s",
Usage: "prompt for the cluster secret (when no source specified)",
},
cli.StringFlag{
Name: "peers",
Usage: "comma-separated list of multiaddresses to init with (see help)",
},
cli.BoolFlag{
Name: "force, f",
Usage: "overwrite configuration without prompting",
},
cli.BoolFlag{
Name: "randomports",
Usage: "configure random ports to listen on instead of defaults",
},
},
Action: func(c *cli.Context) error {
consensus := c.String("consensus")
switch consensus {
case "raft", "crdt":
default:
checkErr("choosing consensus", errors.New("flag value must be set to 'raft' or 'crdt'"))
}
datastore := c.String("datastore")
switch datastore {
case "leveldb", "badger", "badger3", "pebble":
default:
checkErr("choosing datastore", errors.New("flag value must be set to 'leveldb', 'badger', 'badger3' or 'pebble'"))
}
cfgHelper := cmdutils.NewConfigHelper(configPath, identityPath, consensus, datastore)
defer cfgHelper.Manager().Shutdown() // wait for saves
configExists := false
if _, err := os.Stat(configPath); !os.IsNotExist(err) {
configExists = true
}
identityExists := false
if _, err := os.Stat(identityPath); !os.IsNotExist(err) {
identityExists = true
}
if configExists || identityExists {
// cluster might be running
// acquire lock for config folder
locker.lock()
defer locker.tryUnlock()
}
if configExists {
confirm := fmt.Sprintf(
"%s Continue? [y/n]:",
configurationOverwritePrompt,
)
// --force allows override of the prompt
if !c.Bool("force") {
if !yesNoPrompt(confirm) {
return nil
}
}
}
// Set url. If exists, it will be the only thing saved.
cfgHelper.Manager().Source = c.Args().First()
// Generate defaults for all registered components
err := cfgHelper.Manager().Default()
checkErr("generating default configuration", err)
if c.Bool("randomports") {
cfgs := cfgHelper.Configs()
cfgs.Cluster.ListenAddr, err = cmdutils.RandomizePorts(cfgs.Cluster.ListenAddr)
checkErr("randomizing ports", err)
cfgs.Restapi.HTTPListenAddr, err = cmdutils.RandomizePorts(cfgs.Restapi.HTTPListenAddr)
checkErr("randomizing ports", err)
cfgs.Ipfsproxy.ListenAddr, err = cmdutils.RandomizePorts(cfgs.Ipfsproxy.ListenAddr)
checkErr("randomizing ports", err)
cfgs.Pinsvcapi.HTTPListenAddr, err = cmdutils.RandomizePorts(cfgs.Pinsvcapi.HTTPListenAddr)
checkErr("randomizing ports", err)
}
err = cfgHelper.Manager().ApplyEnvVars()
checkErr("applying environment variables to configuration", err)
userSecret, userSecretDefined := userProvidedSecret(c.Bool("custom-secret") && !c.Args().Present())
// Set user secret
if userSecretDefined {
cfgHelper.Configs().Cluster.Secret = userSecret
}
peersOpt := c.String("peers")
var multiAddrs []ma.Multiaddr
if peersOpt != "" {
addrs := strings.Split(peersOpt, ",")
for _, addr := range addrs {
addr = strings.TrimSpace(addr)
multiAddr, err := ma.NewMultiaddr(addr)
checkErr("parsing peer multiaddress: "+addr, err)
multiAddrs = append(multiAddrs, multiAddr)
}
peers := ipfscluster.PeersFromMultiaddrs(multiAddrs)
cfgHelper.Configs().Crdt.TrustAll = false
cfgHelper.Configs().Crdt.TrustedPeers = peers
cfgHelper.Configs().Raft.InitPeerset = peers
}
// Save config. Creates the folder.
// Sets BaseDir in components.
checkErr("saving default configuration", cfgHelper.SaveConfigToDisk())
out("configuration written to %s.\n", configPath)
if !identityExists {
ident := cfgHelper.Identity()
err := ident.Default()
checkErr("generating an identity", err)
err = ident.ApplyEnvVars()
checkErr("applying environment variables to the identity", err)
err = cfgHelper.SaveIdentityToDisk()
checkErr("saving "+DefaultIdentityFile, err)
out("new identity written to %s\n", identityPath)
}
// Initialize peerstore file - even if empty
peerstorePath := cfgHelper.Configs().Cluster.GetPeerstorePath()
peerManager := pstoremgr.New(context.Background(), nil, peerstorePath)
addrInfos, err := peer.AddrInfosFromP2pAddrs(multiAddrs...)
checkErr("getting AddrInfos from peer multiaddresses", err)
err = peerManager.SavePeerstore(addrInfos)
checkErr("saving peers to peerstore", err)
if l := len(multiAddrs); l > 0 {
out("peerstore written to %s with %d entries.\n", peerstorePath, len(multiAddrs))
} else {
out("new empty peerstore written to %s.\n", peerstorePath)
}
return nil
},
},
{
Name: "daemon",
Usage: "Runs the IPFS Cluster peer (default)",
Flags: []cli.Flag{
cli.BoolFlag{
Name: "upgrade, u",
Usage: "run state migrations before starting (deprecated/unused)",
},
cli.StringFlag{
Name: "bootstrap, j",
Usage: "join a cluster providing a comma-separated list of existing peers multiaddress(es)",
},
cli.BoolFlag{
Name: "leave, x",
Usage: "remove peer from cluster on exit. Overrides \"leave_on_shutdown\"",
Hidden: true,
},
cli.BoolFlag{
Name: "stats",
Usage: "enable stats collection",
},
cli.BoolFlag{
Name: "tracing",
Usage: "enable tracing collection",
},
cli.BoolFlag{
Name: "no-trust",
Usage: "do not trust bootstrap peers (only for \"crdt\" consensus)",
},
},
Action: daemon,
},
{
Name: "state",
Usage: "Manages the peer's persistent state (pinset)",
Subcommands: []cli.Command{
{
Name: "crdt",
Usage: "CRDT-state commands",
Before: func(c *cli.Context) error {
// Load all the configurations and identity
cfgHelper, err := cmdutils.NewLoadedConfigHelper(configPath, identityPath)
cfgs := cfgHelper.Configs()
checkErr("loading configurations", err)
defer cfgHelper.Manager().Shutdown()
if cfgHelper.GetConsensus() != cfgs.Crdt.ConfigKey() {
checkErr("", errors.New("crdt subcommands can only be run on peers initialized with crdt consensus"))
}
return nil
},
Subcommands: []cli.Command{
{
Name: "info",
Usage: "Print information about the CRDT store",
Description: `
This commands prints basic information: current heads, dirty flag etc.
`,
Flags: []cli.Flag{},
Action: func(c *cli.Context) error {
locker.lock()
defer locker.tryUnlock()
crdt := getCrdt()
info := crdt.InternalStats()
fmt.Printf(
"Number of heads: %d. Current max-height: %d. Dirty: %t\nHeads: %s",
len(info.Heads),
info.MaxHeight,
crdt.IsDirty(),
info.Heads,
)
return nil
},
},
{
Name: "dot",
Usage: "Write the CRDT-DAG as DOT file",
Description: `
This command generates a DOT file representing the CRDT-DAG of this node.
The DOT file can then be visualized, converted to SVG etc.
This is a debugging command to visualize how the DAG looks like, whether there
is a lot of branching etc. large DAGs will generate large DOT files.
Use with caution!
`,
Flags: []cli.Flag{
cli.StringFlag{
Name: "file, f",
Value: "",
Usage: "writes to file instead of stdout",
},
},
Action: func(c *cli.Context) error {
locker.lock()
defer locker.tryUnlock()
crdt := getCrdt()
var err error
var w io.WriteCloser
outputPath := c.String("file")
if outputPath == "" {
// Output to stdout
w = os.Stdout
} else {
// Create the export file
w, err = os.Create(outputPath)
checkErr("creating output file", err)
}
// 256KiB of buffer size.
buf := bufio.NewWriterSize(w, 1<<18)
defer buf.Flush()
logger.Info("initiating CDRT-DAG DOT file export. Export might take a long time on large graphs")
checkErr("generating graph", crdt.DotDAG(buf))
logger.Info("dot file ")
return nil
},
},
{
Name: "mark-dirty",
Usage: "Marks the CRDT-store as dirty",
Description: `
Marking the CRDT store as dirty will force-run a Repair operation on the next
run (i.e. next time the cluster peer is started).
`,
Flags: []cli.Flag{},
Action: func(c *cli.Context) error {
locker.lock()
defer locker.tryUnlock()
crdt := getCrdt()
crdt.MarkDirty()
fmt.Println("Datastore marked 'dirty'")
return nil
},
},
{
Name: "mark-clean",
Usage: "Marks the CRDT-store as clean",
Description: `
This command remove the dirty-mark on the CRDT-store, which means no
DAG operations will be run.
`,
Flags: []cli.Flag{},
Action: func(c *cli.Context) error {
locker.lock()
defer locker.tryUnlock()
crdt := getCrdt()
crdt.MarkClean()
fmt.Println("Datastore marked 'clean'")
return nil
},
},
},
},
{
Name: "export",
Usage: "save the state to a JSON file",
Description: `
This command dumps the current cluster pinset (state) as a JSON file. The
resulting file can be used to migrate, restore or backup a Cluster peer.
By default, the state will be printed to stdout.
`,
Flags: []cli.Flag{
cli.StringFlag{
Name: "file, f",
Value: "",
Usage: "writes to an output file",
},
},
Action: func(c *cli.Context) error {
locker.lock()
defer locker.tryUnlock()
mgr := getStateManager()
var w io.WriteCloser
var err error
outputPath := c.String("file")
if outputPath == "" {
// Output to stdout
w = os.Stdout
} else {
// Create the export file
w, err = os.Create(outputPath)
checkErr("creating output file", err)
}
buf := bufio.NewWriter(w)
defer func() {
buf.Flush()
w.Close()
}()
checkErr("exporting state", mgr.ExportState(buf))
logger.Info("state successfully exported")
return nil
},
},
{
Name: "import",
Usage: "load the state from a file produced by 'export'",
Description: `
This command reads in an exported pinset (state) file and replaces the
existing one. This can be used, for example, to restore a Cluster peer from a
backup.
If an argument is provided, it will be treated it as the path of the file
to import. If no argument is provided, stdin will be used.
`,
Flags: []cli.Flag{
cli.BoolFlag{
Name: "force, f",
Usage: "skips confirmation prompt",
},
cli.IntFlag{
Name: "replication-min, rmin",
Value: 0,
Usage: "Overwrite replication-factor-min for all pins on import",
},
cli.IntFlag{
Name: "replication-max, rmax",
Value: 0,
Usage: "Overwrite replication-factor-max for all pins on import",
},
cli.StringFlag{
Name: "allocations, allocs",
Usage: "Overwrite allocations for all pins on import. Comma-separated list of peer IDs",
},
},
Action: func(c *cli.Context) error {
locker.lock()
defer locker.tryUnlock()
confirm := "The pinset (state) of this peer "
confirm += "will be replaced. Continue? [y/n]:"
if !c.Bool("force") && !yesNoPrompt(confirm) {
return nil
}
// importState allows overwriting of some options on import
opts := api.PinOptions{
ReplicationFactorMin: c.Int("replication-min"),
ReplicationFactorMax: c.Int("replication-max"),
UserAllocations: api.StringsToPeers(strings.Split(c.String("allocations"), ",")),
}
mgr := getStateManager()
// Get the importing file path
importFile := c.Args().First()
var r io.ReadCloser
var err error
if importFile == "" {
r = os.Stdin
fmt.Println("reading from stdin, Ctrl-D to finish")
} else {
r, err = os.Open(importFile)
checkErr("reading import file", err)
}
defer r.Close()
buf := bufio.NewReader(r)
checkErr("importing state", mgr.ImportState(buf, opts))
logger.Info("state successfully imported. Make sure all peers have consistent states")
return nil
},
},
{
Name: "cleanup",
Usage: "remove persistent data",
Description: `
This command removes any persisted consensus data in this peer, including the
current pinset (state). The next start of the peer will be like a first start
to all effects. Peers may need to bootstrap and sync from scratch after this.
`,
Flags: []cli.Flag{
cli.BoolFlag{
Name: "force, f",
Usage: "skip confirmation prompt",
},
},
Action: func(c *cli.Context) error {
locker.lock()
defer locker.tryUnlock()
confirm := fmt.Sprintf(
"%s Continue? [y/n]:",
stateCleanupPrompt,
)
if !c.Bool("force") && !yesNoPrompt(confirm) {
return nil
}
mgr := getStateManager()
checkErr("cleaning state", mgr.Clean())
logger.Info("data correctly cleaned up")
return nil
},
},
},
},
{
Name: "version",
Usage: "Prints the ipfs-cluster version",
Action: func(c *cli.Context) error {
fmt.Printf("%s\n", version.Version)
return nil
},
},
}
app.Action = run
app.Run(os.Args)
}
// run daemon() by default, or error.
func run(c *cli.Context) error {
cli.ShowAppHelp(c)
os.Exit(1)
return nil
}
func setupLogLevel(debug bool, l string) error {
// if debug is set to true, log everything in debug level
if debug {
ipfscluster.SetFacilityLogLevel("*", "DEBUG")
return nil
}
compLogLevel := strings.Split(l, ",")
var logLevel string
compLogFacs := make(map[string]string)
// get overall log level and component-wise log levels from arguments
for _, cll := range compLogLevel {
if cll == "" {
continue
}
identifierToLevel := strings.Split(cll, ":")
var lvl string
var comp string
switch len(identifierToLevel) {
case 1:
lvl = identifierToLevel[0]
comp = "all"
case 2:
lvl = identifierToLevel[1]
comp = identifierToLevel[0]
default:
return errors.New("log level not in expected format \"identifier:loglevel\" or \"loglevel\"")
}
_, ok := compLogFacs[comp]
if ok {
fmt.Printf("overwriting existing %s log level\n", comp)
}
compLogFacs[comp] = lvl
}
logLevel, ok := compLogFacs["all"]
if !ok {
logLevel = defaultLogLevel
} else {
delete(compLogFacs, "all")
}
// log service with logLevel
ipfscluster.SetFacilityLogLevel("service", logLevel)
logfacs := make(map[string]string)
// fill component-wise log levels
for identifier, level := range compLogFacs {
logfacs[identifier] = level
}
// Set the values for things not set by the user or for
// things set by "all".
for key := range ipfscluster.LoggingFacilities {
if _, ok := logfacs[key]; !ok {
logfacs[key] = logLevel
}
}
// For Extra facilities, set the defaults per logging.go unless
// manually set
for key, defaultLvl := range ipfscluster.LoggingFacilitiesExtra {
if _, ok := logfacs[key]; !ok {
logfacs[key] = defaultLvl
}
}
for identifier, level := range logfacs {
ipfscluster.SetFacilityLogLevel(identifier, level)
}
return nil
}
func userProvidedSecret(enterSecret bool) ([]byte, bool) {
if enterSecret {
secret := promptUser("Enter cluster secret (32-byte hex string): ")
decodedSecret, err := ipfscluster.DecodeClusterSecret(secret)
checkErr("parsing user-provided secret", err)
return decodedSecret, true
}
return nil, false
}
func promptUser(msg string) string {
scanner := bufio.NewScanner(os.Stdin)
fmt.Print(msg)
scanner.Scan()
return scanner.Text()
}
// Lifted from go-ipfs/cmd/ipfs/daemon.go
func yesNoPrompt(prompt string) bool {
var s string
for i := 0; i < 3; i++ {
fmt.Printf("%s ", prompt)
fmt.Scanf("%s", &s)
switch s {
case "y", "Y":
return true
case "n", "N":
return false
case "":
return false
}
fmt.Println("Please press either 'y' or 'n'")
}
return false
}
func getStateManager() cmdutils.StateManager {
cfgHelper, err := cmdutils.NewLoadedConfigHelper(
configPath,
identityPath,
)
checkErr("loading configurations", err)
cfgHelper.Manager().Shutdown()
mgr, err := cmdutils.NewStateManagerWithHelper(cfgHelper)
checkErr("creating state manager", err)
return mgr
}
func getCrdt() *dscrdt.Datastore {
// Load all the configurations and identity
cfgHelper, err := cmdutils.NewLoadedConfigHelper(configPath, identityPath)
checkErr("loading configurations", err)
defer cfgHelper.Manager().Shutdown()
// Get a state manager and the datastore
mgr, err := cmdutils.NewStateManagerWithHelper(cfgHelper)
checkErr("creating state manager", err)
store, err := mgr.GetStore()
checkErr("opening datastore", err)
batching, ok := store.(datastore.Batching)
if !ok {
checkErr("", errors.New("no batching store"))
}
crdtNs := cfgHelper.Configs().Crdt.DatastoreNamespace
var blocksDatastore datastore.Batching = namespace.Wrap(
batching,
datastore.NewKey(crdtNs).ChildString(crdt.BlocksNs),
)
ipfs, err := ipfslite.New(
context.Background(),
blocksDatastore,
nil,
nil,
nil,
&ipfslite.Config{
Offline: true,
},
)
checkErr("creating ipfs-lite offline node", err)
opts := dscrdt.DefaultOptions()
opts.RepairInterval = 0
crdt, err := dscrdt.New(
batching,
datastore.NewKey(crdtNs),
ipfs,
nil,
opts,
)
checkErr("creating crdt node", err)
return crdt
}