running rke up multiple times results with lots of orphaned container volumes

[aemneina]

RKE version:
rke version v0.1.11

Docker version: (docker version,docker info preferred)
17.06.2

Operating system and kernel: (cat /etc/os-release, uname -r preferred)
ubuntu 16.04

Type/provider of hosts: (VirtualBox/Bare-metal/AWS/GCE/DO)
AWS

cluster.yml file:

Steps to Reproduce:
just run rke up a couple times, didnt even need to change anything in the yaml and saw a growth of 10 new volumes.

Workaround:
docker volume prune should do the trick to reclaim some space

Results:
could run out of disk space if one has a smaller volume and runs rke up a few times.

[galal-hussein]

@aemneina I was able to find the root cause of this problem, the sidecar container is upgraded 5 times everytime rke runs, the sidecar container is used with k8s components to provide several helper scripts for cloud provider configuration, etc.

[sangeethah]

Reproduced this issue with v0.1.11

This issue does not happen when testing with v0.2.0-rc5.