[do not merge] add workflow for arm64

.github/workflows/arm64.yaml

@@ -0,0 +1,19 @@
+name: Pack charm for arm64!
+
+on:
+  pull_request:
+
+jobs:
+  arm64:
+    name: Pack charm
+    runs-on: self-hosted-arm64-large
+    steps:
+      - name: Show architecture
+        run: |
+          uname -m
+      - uses: actions/[email protected]
+      - name: Pack charm
+        run: |
+          sudo snap install charmcraft --classic --channel latest/stable
+          lxd init --auto
+          charmcraft pack -v

.github/workflows/integration_test.yaml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   integration-tests:
-    uses: canonical/operator-workflows/.github/workflows/integration_test.yaml@main
+    uses: canonical/operator-workflows/.github/workflows/integration_test.yaml@arm64
     secrets: inherit
     with:
       channel: 1.28-strict/stable
@@ -19,3 +19,4 @@ jobs:
       juju-channel: 3.1/stable
       self-hosted-runner: true
       self-hosted-runner-label: "xlarge"
+      arm64: true

.github/workflows/test.yaml

@@ -5,8 +5,9 @@ on:
 
 jobs:
   unit-tests:
-    uses: canonical/operator-workflows/.github/workflows/test.yaml@main
+    uses: canonical/operator-workflows/.github/workflows/test.yaml@arm64
     secrets: inherit
     with:
       self-hosted-runner: true
       self-hosted-runner-label: "edge"
+      arm64: true

README.md

@@ -4,7 +4,7 @@ A [Juju](https://juju.is/) [charm](https://juju.is/docs/olm/charmed-operators)
 deploying and managing [Jenkins](https://jenkins.io/) on Kubernetes. Jenkins is an open source
 automation server, providing plugins to support building, deploying and automating any project.
 
-Jenkins is an extendable continuous integration server that monitors executions of repeated jobs. 
+Jenkins is an extendable continuous integration server that monitors executions of repeated jobs.
 The focus of Jenkins is the building/testing of software projects continuously, and monitoring
 executions of externally-run jobs. More information at http://jenkins-ci.org/.