how to upgrade a docker container after its image changed?

I am using a Docker container for a GitLab CE installation. The GitLab installation inside tells me “update asap“. How do I deal with that?

  • should I wait for an update of the Docker container image? (that’s what the article title refers to)
  • will that update preserve my data already living inside the container?
  • alternatively: how to update the GitLab installation myself? (I find the update request rather urgent)
  • – instructions for zero downtime updates

I wasn’t able to find any gitlab related APT / Debian package I could even try to update.


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