feat: add goss checks and build on 24.04

.github/workflows/rock-update.yaml

@@ -3,7 +3,7 @@ name: Update rock
 on:
   workflow_dispatch: {}
   schedule:
-    - cron: '0 0,4,8,12,16,20 * * *'
+    - cron: '0 0 * * *'
 
 jobs:
   build:
@@ -21,3 +21,4 @@ jobs:
         node_version="\$(sed -En 's|\s*"@types/node":\s*"\^*([0-9]+)(\.[0-9])+.*",|\1|p' \$application_src/web/ui/package.json)"
         yq -i 'del(.parts.prometheus.build-snaps.[] | select(. == "node/*"))' "\$rockcraft_yaml"
         ver="\$node_version" yq -i '.parts.prometheus.build-snaps += "node/"+strenv(ver)+"/stable"' "\$rockcraft_yaml"
+    secrets: inherit

2.52.0/rockcraft.yaml

@@ -2,8 +2,7 @@ name: prometheus
 summary: Prometheus in a rock.
 description: "Prometheus is time-series database for metrics collection and query, driven by either API or a web ui"
 version: "2.52.0"
-base: ubuntu:22.04
-build-base: ubuntu:22.04
+base: ubuntu@24.04
 license: Apache-2.0
 services:
   prometheus:

README.md

@@ -9,8 +9,18 @@ This repository holds all the necessary files to build rocks for the upstream ve
 
 The rocks on this repository are built with [OCI Factory](https://github.com/canonical/oci-factory/), which also takes care of periodically rebuilding the images.
 
+```
+∮ just
+Available recipes:
+    clean version               # `rockcraft clean` for a specific version
+    pack version                # Pack a rock of a specific version
+    run version=latest_version  # Run a rock and open a shell into it with `kgoss`
+    test version=latest_version # Test the rock with `kgoss`
+```
+
 Automation takes care of:
 * validating PRs, by simply trying to build the rock;
 * pulling upstream releases, creating a PR with the necessary files to be manually reviewed;
+* on PRs, validate the added (or modified) rocks by running `kgoss`;
 * releasing to GHCR at [ghcr.io/canonical/prometheus:dev](https://ghcr.io/canonical/prometheus:dev), when merging to main, for development purposes.
 

goss.yaml

@@ -0,0 +1,13 @@
+process:
+  prometheus:
+    running: true
+http:
+  config:
+    status: 200
+    url: http://localhost:9090/api/v1/status/config
+  buildinfo:
+    status: 200
+    url: http://localhost:9090/api/v1/status/buildinfo
+  targets :
+    status: 200
+    url: http://localhost:9090/api/v1/targets

justfile

@@ -0,0 +1,33 @@
+set quiet # Recipes are silent by default
+set export # Just variables are exported to environment variables
+
+rock_name := `echo ${PWD##*/} | sed 's/-rock//'`
+latest_version := `find . -maxdepth 1 -type d | sort -V | tail -n1 | sed 's@./@@'`
+
+[private]
+default:
+  just --list
+
+# Push an OCI image to a local registry
+[private]
+push-to-registry version:
+  echo "Pushing $rock_name $version to local registry"
+  rockcraft.skopeo --insecure-policy copy --dest-tls-verify=false \
+    "oci-archive:${version}/${rock_name}_${version}_amd64.rock" \
+    "docker://localhost:32000/${rock_name}-dev:${version}"
+
+# Pack a rock of a specific version
+pack version:
+  cd "$version" && rockcraft pack
+
+# `rockcraft clean` for a specific version
+clean version:
+  cd "$version" && rockcraft clean
+
+# Run a rock and open a shell into it with `kgoss`
+run version=latest_version: (push-to-registry version)
+  kgoss edit -i localhost:32000/${rock_name}-dev:${version}
+
+# Test the rock with `kgoss`
+test version=latest_version: (push-to-registry version)
+  GOSS_OPTS="--retry-timeout 60s" kgoss run -i localhost:32000/${rock_name}-dev:${version}