# Which command only updates the Docker image?

**URL:** <https://meta.discourse.org/t/docker/414565>\
**Category:** Self-hosting\
**Tags:** docker\
**Created:** [October 13, 2026, 8:23am UTC](https://meta.discourse.org/t/docker/414565 "2026-10-13T08:23:50Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![singi2016cn](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/singi2016cn/32/532755_2.png) [@singi2016cn](https://meta.discourse.org/u/singi2016cn)\
**Post date:** [October 13, 2026, 8:23am UTC](https://meta.discourse.org/t/docker/414565/1 "2026-10-13T08:23:50Z")

</div>

Which command is used to update only the Docker image?

```bash
/var/discourse# ./launcher -h
Usage: launcher COMMAND CONFIG [--skip-prereqs] [--docker-args STRING]
Commands:
    start: Start/initialize a container
    stop: Stop a running container
    restart: Restart a container
    destroy: Stop and remove a container
    enter: Open a shell to run commands inside the container
    logs: View the Docker logs for a container
    bootstrap: Bootstrap a container for the config based on a template
    run: Run the given command with the config in the context of the last bootstrapped image
    rebuild: Rebuild a container (destroy old, bootstrap, start new)
    cleanup: Remove all containers that have stopped for > 24 hours
    start-cmd: Generate docker command used to start container

Options:
    --skip-prereqs Don't check launcher prerequisites
    --docker-args Extra arguments to pass when running docker
    --skip-mac-address Don't assign a mac address
    --run-image Override the image used for running the container

```

My use case is:  
Currently, during the build process, if a Docker image update is required but the server’s network connection is poor, the process gets stuck at the image update step for a very long time. I would like to have a dedicated command for updating the Docker image, so that I can update the image in advance separately and then build the code without any rush. For example:

```bash
./launcher pull-docker

```

I know I can manually create a working version, but I would still prefer if the official team could provide one.

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