[DPE-5502] Mongos k8s Upgrades (#37)

.github/workflows/release.yaml

@@ -37,9 +37,12 @@ jobs:
       - release-charm
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - run: |
+          # Workaround for https://github.com/canonical/charmcraft/issues/1389#issuecomment-1880921728
+          touch requirements.txt
       - name: Release any bumped charm libs
         uses: canonical/charming-actions/[email protected]
         with:

actions.yaml

@@ -9,3 +9,11 @@ set-tls-private-key:
     internal-key:
       type: string
       description: The content of private key for internal communications with clients. Content will be auto-generated if this option is not specified.
+
+pre-refresh-check:
+  description: Check if charm is ready to refresh.
+
+force-refresh-start:
+  description: |
+    Force upgrade of this unit.
+    Potential of data loss and downtime.

charm_version

@@ -0,0 +1 @@
+1

charmcraft.yaml

@@ -8,20 +8,29 @@ bases:
     architectures: [amd64]
 parts:
   charm:
+    charm-strict-dependencies: true
+    override-build: |
+      rustup default stable
+      craftctl default
+    build-snaps:
+      - rustup
+    build-packages:
+      - libffi-dev
+      - libssl-dev
+      - pkg-config
     override-pull: |
       craftctl default
       if [[ ! -f requirements.txt ]]
       then
           echo 'ERROR: Use "tox run -e build-dev" instead of calling "charmcraft pack" directly' >&2
           exit 1
       fi
+  files:
+    plugin: dump
+    source: .
+    prime:
+      - charm_version
+      - workload_version
     override-build: |
       rustup default stable
       craftctl default
-    charm-strict-dependencies: true
-    build-snaps:
-      - rustup
-    build-packages:
-      - libffi-dev
-      - libssl-dev
-      - pkg-config