PackDocker

Implements subset of Docker API that is required for creating buildpack/builder images. This allows to create buildpack/builder images if docker daemon is not available. The resultant images are being stored as tarballs instead of being stored into daemon.

Example

In one terminal:

packdocker -s=/tmp/d.sock -o=/tmp/out -u=testuser -p=testpwd

In another terminal:

export DOCKER_HOST="unix:///tmp/d.sock"
pack buildpack package example.com/boson/faas-quarkus-jvm-bp:tip --path ./buildpacks/quarkus-jvm/
pack buildpack package example.com/boson/faas-springboot-bp:tip --path ./buildpacks/springboot/
pack builder create --pull-policy=never example.com/boson/faas-jvm-builder:tip --config jvm-builder.toml

After this the /tmp/out directory will contain three tarballs (2 buildpacks, 1 builder) and tags.json.

The tags.json contains mapping between repo tag (e.g. example.com/boson/faas-jvm-builder:tip) and image sha256.