Ubuntu Release

This repo hosts the tooling used to generate Ubuntu images hosted on the not yet existing https://images.ubuntu.com.

DISCLAIMER: this is very early work, as we're trying to move away from a very manual process and setup on https://cdimage.ubuntu.com. This repo is still very much the future, and not everything is clearly defined yet. If you want to submit feature requests, please make sure you already understand Ubuntu's release mechanisms, and have a strong use-case in mind to show that it needs to be taken into account early.

ubuntu-release go binary

ubuntu-release is a Go utility to facilitate the Ubuntu Release activities.

Quick start local run

To start the local Temporal server:

❯ temporal server start-dev

To start the Temporal worker:

❯ go run cmd/ubuntu-release-worker

To start the HelloUbuntu Temporal workflow:

❯ go run cmd/ubuntu-release hello

Running Tests

The ubuntu-release project has both unit and integration tests. To run them:

# Unit tests
❯ go test ./...

# List integration tests
❯ spread -list ubuntu-release

# Run an integration test
❯ spread -v lxd:ubuntu-24.04:tests/hello

Charm Test & Release

Charm code can be found in charm.

Charm tests

The charm has unit, functional and integration tests. To run them, follow these steps:

# Unit tests
❯ make -C charm unit

# List spread tests (for functional and integration tests)
❯ charmcraft test --list charm/
lxd:ubuntu-24.04:charm/tests/spread/functional/temporal
lxd:ubuntu-24.04:charm/tests/spread/functional/worker
lxd:ubuntu-24.04:charm/tests/spread/integration/deploy-charm:juju_3_6
lxd:ubuntu-24.04:charm/tests/spread/integration/ingress:juju_3_6

# Run a particular functional test
❯ charmcraft test lxd:ubuntu-24.04:charm/tests/spread/functional/temporal

# Run a particular integration test
❯ charmcraft test lxd:ubuntu-24.04:charm/tests/spread/integration/ingress:juju_3_6

Generating the charmhub token for the CI

charmcraft login \
  --export=secrets.auth \
  --charm=ubuntu-release-worker \
  --permission=package-manage \
  --permission=package-view \
  --ttl=$((3600*24*365))
cat secrets.auth | wl-copy
shred -u secrets.auth

Go to https://github.com/ubuntu/ubuntu-release/settings/secrets/actions and update the CHARMHUB_TOKEN secret.