docker-rerun/README.md

docker-rerun

docker-rerun is a small utility script that makes it easy to re-run docker containers using the same arguments you used previously.

Want to update to a newer image, or add a missing port publication? docker-rerun’s got you covered.

Usage

In the most basic usage, you pass in a container name and it will be stopped, deleted and recreated:

$ ./docker-rerun apache

You can also pass additional arguments to modify aspects of the container when it’s rerun. For example, to change the image:

$ ./docker-rerun --image nginx:latest webserver

To check what exactly is going to be performed beforehand, use the --dry-run option:

$ ./docker-rerun --dry-run apache
docker stop apache
docker rm apache
docker run --name=apache -p=80:80/tcp --restart=always apache:latest

What’s supported

At present docker-rerun supports copying a number of commonly used arguments:

* Commands (trailing arguments)
* Environment variables (-e/--env)
* Labels (-l/--label)
* Links (--link)
* Names (--name)
* Networks (--net)
* Port publications (-p)
* Restart policies (--restart)
* User switching (-u/--user)
* Volumes (-v/--volume, and --volumes-from)

If a container uses an argument that’s not supported yet, it will be silently dropped when rerunning.

The following arguments can be used when executing docker-rerun to modify the resulting container:

* `--image <image>` - changes the image that will be used. You can specify
  tags (`name:tag`) or digests (`name@digest`) as with `docker run`.

What’s not done yet

Many other command line arguments:

* Network aliases
* Permissions and policies
* Advanced networking options

More options to allow mutating the container config when rerunning.