Unable to start Redis container with persistence volume

Question

When starting redis container with the following configuration:

redis:
  image: redis
  ports:
    - "6379:6379"
  volumes:
    - "/data:/data"
  deploy:
    placement:
      constraints: [node.role == manager]
  command: redis-server --appendonly yes
  networks:
    - webnet

I get the following error in logs:

chown: cannot read directory '.': Permission denied

Docker host is a Red Hat Enterprise Linux Server release 7.4 (Maipo)
/Data exists on host
Tried to chmod 777 /Data
Tried chown 999:999 /Data

Any chance this is relevant? https://stackoverflow.com/questions/15800742/chmod-cannot-read-directory-permission-denied — brandon-barnett, Jun 09 '18 at 14:57

score 3 · Accepted Answer · answered Jun 09 '18 at 18:15

Finally I figured out that it was related to seLinux on host.

The following command allowed the container to start (but disabled seLinux):

su -c "setenforce 0"

And the following one fixed the problem for good:

chcon -Rt svirt_sandbox_file_t /data

Then I was able to enable seLinux again with:

su -c "setenforce 1"

I found the solution in this post: Permission denied on accessing host directory in docker

Unable to start Redis container with persistence volume

1 Answers1