docker service rollback returns error code 1 when trying to rollback to the version with more replicas.
Docker version
$ docker version
Client:
Version: 17.10.0-ce
API version: 1.33
Go version: go1.8.3
Git commit: f4ffd25
Built: Tue Oct 17 19:04:40 2017
OS/Arch: linux/amd64
Server:
Version: 17.10.0-ce
API version: 1.33 (minimum version 1.12)
Go version: go1.8.3
Git commit: f4ffd25
Built: Tue Oct 17 19:03:20 2017
OS/Arch: linux/amd64
Experimental: false
Steps to reproduce:
- create service with replicas=3
$ docker service create --name my-service -p 8080:80 --replicas=3 nginx:alpine
k70yv0482uaa6rgfds39wmsex
overall progress: 3 out of 3 tasks
1/3: running [==================================================>]
2/3: running [==================================================>]
3/3: running [==================================================>]
verify: Service converged
- update service with replicas=1
$ docker service update --replicas=1 my-service
my-service
overall progress: 1 out of 1 tasks
1/1: running [==================================================>]
verify: Service converged
- rollback service
$ docker service rollback my-service
my-service
rollback: manually requested rollback
overall progress: rolling back update: 1 out of 3 tasks
1/3: new [============================================> ]
2/3: new [============================================> ]
3/3: running [> ]
service rolled back: rollback completed
- check return code
After rollback I got following containers (rollback actually was successful):
Node 1
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
bd60f553543d nginx:alpine "nginx -g 'daemon ..." 9 minutes ago Up 9 minutes 80/tcp my-service.3.wf309ic4b5xqc38o1a8engnct
Node 2
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c0ec0d38990e nginx:alpine "nginx -g 'daemon ..." 10 minutes ago Up 10 minutes 80/tcp my-service.2.x74kun5duu2izbzwczt0t5rq0
Node 3
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
bd60f553543d nginx:alpine "nginx -g 'daemon ..." 9 minutes ago Up 9 minutes 80/tcp my-service.3.wf309ic4b5xqc38o1a8engnct
docker service rollbackreturns error code 1 when trying to rollback to the version with more replicas.Docker version
Steps to reproduce:
After rollback I got following containers (rollback actually was successful):
Node 1
Node 2
Node 3