Traefik route endpoint

[PietroPasotti]

Feature

This PR adds an integration with the Traefik Route charm (cf. https://github.com/PietroPasotti/traefik-route-k8s-operator), enabling users to configure Traefik on a per-relation basis, overcoming the limitations of ingress-per-unit and ingress-per-app, making Traefik a lot more general.

The role of Traefik in this integration is very limited: it simply has to accept a yaml config file and write it to the folder where traefik will load it up. Therefore the changes to the charm codebase are rather limited.

Testing Instructions

Aside from running the utests, you can test this in combination with TraefikRoute and prometheus-k8s in a live deployment (itests pending).

juju deploy traefik-route-k8s --channel beta

Release Notes

• Added traefik_route_k8s/v0/traefik_route.py lib
• Added traefik_route integration in the Traefik charm.

[github-actions]

Libraries are not up to date with their remote counterparts. If this was
not intentional, run charmcraft fetch-libs and commit the updated libs
to your PR branch.

stdout

Library charms.observability_libs.v0.kubernetes_service_patch was already up to date in version 0.6.                                                           
Library charms.prometheus_k8s.v0.prometheus_scrape was already up to date in version 0.17.                                                                     
Library charms.traefik_k8s.v0.ingress was already up to date in version 0.5.   
Library charms.traefik_k8s.v0.ingress_per_unit has local changes, cannot be updated.                                                                           
Library charms.traefik_route_k8s.v0.traefik_route was already up to date in version 0.1.                                                                       

stderr