Executing storeconfig silently fails with --etcd.useapiv3 flag

[brodkin]

Do you want to request a feature or report a bug?

Bug

What did you do?

1. Execute command to storeconfig:

traefik storeconfig --etcd --etcd.endpoint=etcd:2379 --etcd.prefix=/traefik --etcd.useapiv3

2. Desired configuration is output to screen in JSON format.
3. Execute etcdctl ls to verify keys and values were stored.

What did you expect to see?

Expected /traefik key in etcd to contain KV mapping of outputted JSON.

What did you see instead?

KV store empty and no values created.

Output of traefik version: (What version of Traefik are you using?)

Version:      v1.5.2
Codename:     cancoillotte
Go version:   go1.9.4
Built:        2018-02-12_10:56:31AM
OS/Arch:      linux/amd64

What is your environment & configuration (arguments, toml, provider, platform, ...)?

{
 "LifeCycle": null,
 "GraceTimeOut": 0,
 "Debug": false,
 "CheckNewVersion": true,
 "SendAnonymousUsage": false,
 "AccessLogsFile": "",
 "AccessLog": null,
 "TraefikLogsFile": "",
 "TraefikLog": null,
 "LogLevel": "ERROR",
 "EntryPoints": {},
 "Cluster": null,
 "Constraints": [],
 "ACME": null,
 "DefaultEntryPoints": [
  "http"
 ],
 "ProvidersThrottleDuration": 2000000000,
 "MaxIdleConnsPerHost": 200,
 "IdleTimeout": 0,
 "InsecureSkipVerify": false,
 "RootCAs": null,
 "Retry": null,
 "HealthCheck": {
  "Interval": 30000000000
 },
 "RespondingTimeouts": null,
 "ForwardingTimeouts": null,
 "Web": null,
 "Docker": null,
 "File": null,
 "Marathon": null,
 "Consul": null,
 "ConsulCatalog": null,
 "Etcd": {
  "Watch": true,
  "Filename": "",
  "Constraints": [],
  "Trace": false,
  "DebugLogGeneratedTemplate": false,
  "Endpoint": "xxxx",
  "Prefix": "/traefik",
  "TLS": null,
  "Username": "",
  "Password": "",
  "UseAPIV3": true
 },
 "Zookeeper": null,
 "Boltdb": null,
 "Kubernetes": null,
 "Mesos": null,
 "Eureka": null,
 "ECS": null,
 "Rancher": null,
 "DynamoDB": null,
 "ServiceFabric": null,
 "Rest": null,
 "API": null,
 "Metrics": null,
 "Ping": null,
 "ConfigFile": ""
}

Other Notes

Executing the same command defaulted to the v2 API works as expected:

traefik storeconfig --etcd --etcd.endpoint=etcd:2379 --etcd.prefix=/traefik

The only side effect is a warning:

The ETCD API V2 is deprecated. Please use API V3 instead 

The KV store is filled with entries:

/traefik/accesslogsfile
/traefik/acme
/traefik/docker
/traefik/providersthrottleduration
/traefik/idletimeout
/traefik/insecureskipverify
/traefik/maxidleconnsperhost
/traefik/sendanonymoususage
/traefik/defaultentrypoints
/traefik/gracetimeout
/traefik/loglevel
/traefik/web
/traefik/healthcheck
/traefik/traefiklogsfile
/traefik/checknewversion
/traefik/debug
/traefik/entrypoints
/traefik/etcd

[traefiker]

Hi! I'm Træfiker 🤖 the bot in charge of communication regulation.

Thanks for your interest in Træfik!

We dedicate the issue tracker to bug reports and feature requests only.

If you have questions and need community support, you can join our Slack workspace and reach out to us on the #support channel.

Another option is to use Stack Overflow and tag your question traefik.

Of course, double checking Træfik's documentation is always a good idea 😅

[brodkin]

With all due respect to @traefiker, I think this is actually a bug.