feat: add metrics collection using Prometheus

.github/workflows/ci.yaml

@@ -16,6 +16,8 @@ name: slurmctld charm tests
 on:
   workflow_call:
   pull_request:
+    branches:
+      - main
 
 jobs:
   inclusive-naming-check:
@@ -64,12 +66,16 @@ jobs:
 
   integration-test:
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
-        bases:         
+        bases:
           - [email protected]
-    name: Integration tests (LXD) | ${{ matrix.bases }}
+        local: [true, false]
+    name: Integration tests (LXD) ${{ matrix.local && '|' || '| Charmhub (edge) |'}} ${{ matrix.bases }}
     runs-on: ubuntu-latest
+    # Testing against Charmhub will probably yield errors when doing breaking changes, so don't
+    # block CI on that.
+    continue-on-error: ${{ !matrix.local }}
     needs:
       - inclusive-naming-check
       - lint
@@ -78,10 +84,33 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          path: main
+      - name: Fetch slurmd
+        uses: actions/checkout@v4
+        if: ${{ matrix.local }}
+        with:
+          repository: charmed-hpc/slurmd-operator
+          path: slurmd-operator
+      - name: Fetch slurmdbd
+        uses: actions/checkout@v4
+        if: ${{ matrix.local }}
+        with:
+          repository: charmed-hpc/slurmdbd-operator
+          path: slurmdbd-operator
+      - name: Fetch slurmrestd
+        uses: actions/checkout@v4
+        if: ${{ matrix.local }}
+        with:
+          repository: charmed-hpc/slurmrestd-operator
+          path: slurmrestd-operator
       - name: Setup operator environment
         uses: charmed-kubernetes/actions-operator@main
         with:
           provider: lxd
-          juju-channel: 3.1/stable
+          juju-channel: 3.4/stable
       - name: Run tests
-        run: tox run -e integration -- --charm-base=${{ matrix.bases }}
+        run: |
+          cd main && tox run -e integration -- \
+             --charm-base=${{ matrix.bases }} \
+             ${{ matrix.local && '--use-local' || '' }}

.github/workflows/experimental.yaml

@@ -0,0 +1,112 @@
+# Copyright 2023 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: slurmctld charm tests (experimental)
+on:
+  workflow_call:
+  pull_request:
+    branches:
+      - experimental
+
+jobs:
+  inclusive-naming-check:
+    name: Inclusive naming check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Run tests
+        uses: get-woke/woke-action@v0
+        with:
+          fail-on-error: true
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install dependencies
+        run: python3 -m pip install tox
+      - name: Run linters
+        run: tox -e lint
+
+  unit-test:
+    name: Unit tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install dependencies
+        run: python3 -m pip install tox
+      - name: Run tests
+        run: tox -e unit
+
+  type-check:
+    name: Static type checking
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install dependencies
+        run: python3 -m pip install tox
+      - name: Run tests
+        run: tox -e type
+
+  integration-test:
+    strategy:
+      fail-fast: true
+      matrix:
+        bases:
+          - [email protected]
+    name: Integration tests (LXD) | ${{ matrix.bases }}
+    runs-on: ubuntu-latest
+    needs:
+      - inclusive-naming-check
+      - lint
+      - unit-test
+      - type-check
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          path: main
+      - name: Fetch slurmd
+        uses: actions/checkout@v4
+        with:
+          repository: charmed-hpc/slurmd-operator
+          path: slurmd-operator
+          ref: experimental
+      - name: Fetch slurmdbd
+        uses: actions/checkout@v4
+        with:
+          repository: charmed-hpc/slurmdbd-operator
+          path: slurmdbd-operator
+          ref: experimental
+      - name: Fetch slurmrestd
+        uses: actions/checkout@v4
+        with:
+          repository: charmed-hpc/slurmrestd-operator
+          path: slurmrestd-operator
+          ref: experimental
+      - name: Setup operator environment
+        uses: charmed-kubernetes/actions-operator@main
+        with:
+          provider: lxd
+          juju-channel: 3.4/stable
+      - name: Run tests
+        run: |
+          cd main && tox run -e integration -- \
+             --charm-base=${{ matrix.bases }} \
+             --use-local

.github/workflows/release.yaml

@@ -32,10 +32,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Select charmhub channel
-        uses: canonical/charming-actions/channel@2.2.0
+        uses: canonical/charming-actions/channel@2.5.0-rc
         id: channel
       - name: Upload charm to charmhub
-        uses: canonical/charming-actions/upload-charm@2.2.0
+        uses: canonical/charming-actions/upload-charm@2.5.0-rc
         with:
           credentials: "${{ secrets.CHARMCRAFT_AUTH }}"
           github-token: "${{ secrets.GITHUB_TOKEN }}"

charmcraft.yaml

@@ -29,6 +29,10 @@ requires:
     interface: slurmdbd
   slurmrestd:
     interface: slurmrestd
+provides:
+  cos-agent:
+    interface: cos_agent
+    limit: 1
 
 assumes:
   - juju