Ubuntu Transition Tracker charm

The Ubuntu Transition Tracker generates a summary page about all the known transitions in the devel series of the Ubuntu archive.

Basic usage

Assuming you have access to a bootstrapped Juju controller, you can deploy the charm with:

❯ juju deploy ubuntu-transition-tracker

Once the charm is deployed, you can check the status with Juju status:

❯ juju status
Model        Controller  Cloud/Region         Version  SLA          Timestamp
welcome-lxd  lxd         localhost/localhost  3.6.7    unsupported  13:29:50+02:00

App       Version  Status  Scale  Charm             Channel  Rev  Exposed  Message
transition-tracker           active      1  ubuntu-transition-tracker             0  no

Unit          Workload  Agent  Machine  Public address  Ports  Message
transition-tracker/0*  active    idle    1       10.142.46.109

Machine  State    Address        Inst id         Base          AZ  Message
1        started  10.142.46.109  juju-fd4fe1-1   ubuntu@24.04      Running

On first start up, the charm will install the application and install a systemd timer unit to trigger tracker updates on a regular basis.

To refresh the report, you can use the provided Juju Action:

❯ juju run ubuntu-transition-tracker/0 refresh

Integrating with an ingress / proxy

The charm supports integrations with ingress/proxy services using the ingress relation. To test this:

# Deploy the charms
❯ juju deploy ubuntu-transition-tracker
❯ juju deploy haproxy --channel 2.8/edge --config external-hostname=transitions.internal
❯ juju deploy self-signed-certificates --channel 1/edge

# Create integrations
❯ juju integrate ubuntu-transition-tracker haproxy
❯ juju integrate haproxy:certificates self-signed-certificates:certificates

# Test the proxy integration
❯ curl -k -H "Host: transitions.internal" https://<haproxy-ip>/<model-name>-ubuntu-transition-tracker