standard_init_linux.go:211: exec user process caused "permission denied"
Looks like the issue is caused by lack of executable permissions to the user that You are trying to run this containers as in Your deployment.
You can try to modify the image dockerfile and add few lines that would allow the right user to execute commands like in this github issue.
There is also lots of useful information about this in this StackOverflow post.
Hope it Helps.