This Alpine Docker-image serves as a base for other containers.

• 1nfiniteloop/alpine:latest from here.

• /etc/patch.d - Optionally, used during development

None

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Start container with:

docker run \
  --rm \
  -it \
  --name alpine \
  1nfiniteloop/alpine:latest \
  /bin/bash -l

/etc/entrypoint.d contain scripts to run before the s6-service supervisor starts. Example to make configurations based on environment variables provided from docker run cmdline. Note that scripts will run on each startup, not only once.

/etc/patch.d contain patches to be applied on startup. I believe applying patches to configuration files become more transparent, compared to just copy an overlay file into the container.

1. Start container with a bind-mount:

    docker run \
      --rm \
      -it \
      --name alpine \
      --user $(id -u):$(id -g) \
      --volume $(pwd)/overlay/etc/patch.d:/etc/patch.d \
      1nfiniteloop/alpine:latest /bin/bash -l
   

2. Create a copy of the original configuration file, to diff against. Example: cp /etc/inputrc /etc/inputrc~.

3. Make changes and create the patch with make-patch /etc/inputrc.