adferrand/snapcraft repository overview

⁠Creating Docker images for snapcraft

⁠Setup

sudo snap install docker jq

Ensure networking works, in some cases dockerd might need to have something like --dns=8.8.8.8 added to the command.

⁠Creating images

You can create the images using the following command:

docker/build.sh RISK DOCKER_REPO PLATFORMS

Here are the meaning and possible values for each parameter:

• RISK is the risk level of snapcraft, can be:
  • stable
  • candidate
  • beta
  • edge
• DOCKER_REPO is the base image name (eg. snapcore/snapcraft)
• PLATFORMS is a comma-separated list of target for which the Docker is built, can be:
  • linux/amd64 (arch amd64)
  • linux/386 (arch i386)
  • linux/arm64 (arch arm64v8)
  • linux/arm/v7 (arch arm32v7)

Image(s) created will be labeled as DOCKER_REPO:ARCH-RISK.

For instance, to build images of snapcore/snapcraft for linux/amd64 and linux/arm64 with stable risk level, run:

docker/build.sh stable snapcore/snapcraft linux/amd64,linux/arm64

You will get the following images:

• snapcore/snapcraft:amd64-stable
• snapcore/snapcraft:arm64v8-stable

⁠Pushing images and multi-arch manifest

You can push the images using the following command:

docker/publish.sh RISK DOCKER_REPO PLATFORMS

RISK, DOCKER_REPO and PLATFORMS have the same meaning and possible values than in the Creating images⁠ section.

On top of publishing each architecture specific DOCKER_REPO:ARCH-RISK image, this script will also publish a multi-arch manifest named DOCKER_REPO:RISK that can be pulled by users: the local Docker daemon will automatically download the architecture specific image corresponding to the host architecture.