multiple enviroment variables makes docker service update randomly force restart #32344
Description
Description
When using multiple enviroment variables (more than one) to create a service will cause "docker service update" to randomly force a restart of the service.
Steps to reproduce the issue:
- create a docker swarm
- create a service
docker service create --name="redis" --env="val1=one" --env="val2=two" redis - execute an service update
docker service update redis
on random occasions this will result in docker restarting the running container. (about 1 in 10 times)
Describe the results you received:
docker randomly restarting the running container. (about 1 in 10 times)
Describe the results you expected:
docker service update should not trigger a restart in this situation
Additional information you deem important (e.g. issue happens only occasionally):
Output of docker version:
Client:
Version: 17.03.1-ce
API version: 1.27
Go version: go1.7.5
Git commit: c6d412e
Built: Fri Mar 24 00:45:26 2017
OS/Arch: linux/amd64
Server:
Version: 17.03.1-ce
API version: 1.27 (minimum version 1.12)
Go version: go1.7.5
Git commit: c6d412e
Built: Fri Mar 24 00:45:26 2017
OS/Arch: linux/amd64
Experimental: false
Output of docker info:
Containers: 13
Running: 10
Paused: 0
Stopped: 3
Images: 27
Server Version: 17.03.1-ce
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 457
Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Swarm: active
NodeID: 1z65oqzst0golngjawjge2uhd
Is Manager: true
ClusterID: 5mzfdmwvdbewra00c6hkcknm0
Managers: 1
Nodes: 3
Orchestration:
Task History Retention Limit: 5
Raft:
Snapshot Interval: 10000
Number of Old Snapshots to Retain: 0
Heartbeat Tick: 1
Election Tick: 3
Dispatcher:
Heartbeat Period: 5 seconds
CA Configuration:
Expiry Duration: 3 months
Node Address: 172.31.14.157
Manager Addresses:
172.31.14.157:2377
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 4ab9917febca54791c5f071a9d1f404867857fcc
runc version: 54296cf40ad8143b62dbcaa1d90e520a2136ddfe
init version: 949e6fa
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.4.0-71-generic
Operating System: Ubuntu 16.04.2 LTS
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 7.795 GiB
Name: ip-172-31-14-157
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
Additional environment details (AWS, VirtualBox, physical, etc.):
Running in AWS on EC2 t2.large instances.