How can I get the current DMS version?

[vahidalvandi]

I want to get the current version of DMS, how do I find out?

[polarathene]

This question implies you're not using an image tag, that is bad.

You want to make this clear by using an image tag, especially since major versions have breaking changes and if you pull a newer major version accidentally (or on a new system) you might experience breakage with a config that previously worked fine.

So include the version you want/use as the tag: mailserver/docker-mailserver:13.1

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How can I get the current DMS version?

# On a running container:
$ docker inspect --format '{{ index .Config.Labels "org.opencontainers.image.version"}}' container_name
v13.1.0

# On the image (optionally with tag):
$ docker inspect --format '{{ index .Config.Labels "org.opencontainers.image.version"}}' mailserver/docker-mailserver
v13.1.0

# Check on a running container by running command:
# Valid from v13.0.1+
$ docker exec container_name bash -c 'echo "${DMS_RELEASE}"'
v13.1.0

# Check images (not useful when you use `:latest` tag):
$ docker images | grep docker-mailserver
REPOSITORY                      TAG       IMAGE ID       CREATED         SIZE
mailserver/docker-mailserver    13.1      c100362e7b4b   11 days ago     622MB
mailserver/docker-mailserver    latest    c100362e7b4b   11 days ago     622MB