[PRA-158] Update OCI resource to latest release (#147)

* chore: Bump OCI resource to latest release (3.5.7)
* docs: Add RTD link in metadata.yaml
* fix: Add missing S3 CA env var in tox.ini
* ci: Add log collection in case of failure
* fix: Make path getter more robust

Author: Batalex

.github/workflows/ci.yaml

@@ -179,4 +179,26 @@ jobs:
           AZURE_STORAGE_KEY: ${{ secrets.AZURE_STORAGE_KEY }}
           CI_PACKED_CHARMS: ${{ needs.build.outputs.charms }}
         run: |
-          tox run -e ${{ matrix.tox-environments }} -- -m '${{ steps.select-tests.outputs.mark_expression }}'
+          tox run -e ${{ matrix.tox-environments }} -- -m '${{ steps.select-tests.outputs.mark_expression }}' --keep-models
+
+      - name: Collect logs if job failed
+        if: ${{ failure() }}
+        run: |
+          juju-crashdump
+
+          # get pods
+          kubectl get pods -A
+
+          # replay juju-debug logs
+          sudo snap install yq
+          for model in $(juju models --format yaml | yq '.models[] | .name');
+          do
+            echo "Model: $model"
+            if [[ ${model} != *"controller"* ]];then
+              juju debug-log --model $model --replay
+            fi
+          done
+
+          # events
+          kubectl events -A
+          echo "Done"

metadata.yaml

@@ -14,6 +14,7 @@ description: |
 
   Apache Spark is a free, open source software project by the Apache Software Foundation.
   Users can find out more at the [Spark project page](https://spark.apache.org/).
+docs: https://canonical-charmed-spark.readthedocs-hosted.com/main/how-to/spark-history-server
 source: https://github.com/canonical/spark-history-server-k8s-operator
 issues: https://github.com/canonical/spark-history-server-k8s-operator/issues
 website:
@@ -32,7 +33,8 @@ resources:
   spark-history-server-image:
     type: oci-image
     description: OCI image for Spark History Server
-    upstream-source: ghcr.io/canonical/charmed-spark@sha256:a21e7b2d697fe3cfc61986ac40e60f4e9b6e72c4c2b37b34d3e2a6f46a66a80c # spark-version: 3.5.5
+    # spark-version: 3.5.7, released on 2026-02-27
+    upstream-source: ghcr.io/canonical/charmed-spark@sha256:c7eef66beaeff463fdb7b707c630c0574912df8b843d8e3169f358adee2ae706
 
 requires:
   s3-credentials:

src/core/domain.py

@@ -66,7 +66,7 @@ def secret_key(self) -> str:
     @property
     def path(self) -> str:
         """Return the path in the S3 bucket."""
-        return self.relation_data["path"]
+        return self.relation_data.get("path", "")
 
     @property
     def region(self) -> str:

tox.ini

@@ -113,6 +113,7 @@ pass_env =
     S3_ACCESS_KEY
     S3_SECRET_KEY
     S3_SERVER_URL
+    S3_CA_BUNDLE_PATH
 commands =
     poetry install --with integration
     playwright install