CI: Test multiple versions of Pulp in integration tests

Improves coverage of Pulp versions, and the latest tag seems to fail
when generating a CSRF token.

Author: markgoddard

.github/workflows/pull_request.yml

@@ -46,6 +46,12 @@ jobs:
 
   integration:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        pulp:
+          - "3.16"
+          - "3.18"
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE, so it's accessible to the job
       - uses: actions/checkout@v2
@@ -61,6 +67,8 @@ jobs:
       - name: Run Pulp in one
         run: |
           tests/pulp-in-one.sh
+        env:
+          PULP_TAG: ${{ matrix.pulp }}
 
       # TODO: Use ansible-test to run these.
       - name: Running integration tests

tests/pulp-in-one.sh

@@ -8,6 +8,8 @@ set -o pipefail
 
 mkdir -p settings
 
+PULP_TAG=${PULP_TAG:3.18}
+
 cat << EOF > settings/settings.py
 CONTENT_ORIGIN='http://$(hostname):8080'
 ANSIBLE_API_HOSTNAME='http://$(hostname):8080'
@@ -21,7 +23,7 @@ docker run \
   --name pulp \
   --volume "$(pwd)/settings":/etc/pulp \
   --publish 8080:80 \
-  pulp/pulp:latest
+  pulp/pulp:$PULP_TAG
 
 # Wait for it to come up.
 attempts=0