Patch the build to add pg_stat_monitor extension to image

Author: mortenlj

.github/workflows/main.yml

@@ -27,14 +27,17 @@ jobs:
       RUNNERIMG_IDENTITY: "[email protected]"
       RUNNERIMG_ISSUER: "https://accounts.google.com"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # ratchet:actions/checkout@v4
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # ratchet:actions/checkout@v4
         with:
           repository: zalando/spilo
           fetch-depth: '0'
           fetch-tags: 'true'
-      - name: Find latest tag
+          path: spilo
+      - name: Checkout latest tag
         shell: bash
         run: |
+          cd spilo || exit 1
           wanted_tag=$(git tag --list --sort=committerdate | tail -n 1)
           echo "Selected tag ${wanted_tag}"
           if [[ -z "$wanted_tag" ]]; then
@@ -46,6 +49,11 @@ jobs:
             exit 2
           fi
           git checkout "$wanted_tag"
+      - name: Apply pg_stat_monitor patch
+        shell: bash
+        run: |
+          cd spilo || exit 1
+          patch -p1 < ../pg_stat_monitor.patch
       - name: Install cosign
         uses: sigstore/cosign-installer@398d4b0eeef1380460a10c8013a76f728fb906ac # ratchet:sigstore/[email protected]
         with:
@@ -56,8 +64,8 @@ jobs:
         id: build-push-sign
         with:
           name: postgres-image
-          context: postgres-appliance
-          dockerfile: postgres-appliance/Dockerfile
+          context: spilo/postgres-appliance
+          dockerfile: spilo/postgres-appliance/Dockerfile
           build_args: |
             ADDITIONAL_LOCALES=nb_NO
             TIMESCALEDB_APACHE_ONLY=false

pg_stat_monitor.patch

@@ -0,0 +1,33 @@
+diff --git a/postgres-appliance/build_scripts/base.sh b/postgres-appliance/build_scripts/base.sh
+index ff885c5..5059351 100644
+--- a/postgres-appliance/build_scripts/base.sh
++++ b/postgres-appliance/build_scripts/base.sh
+@@ -64,6 +64,7 @@ apt-get install -y \
+     brotli \
+     libbrotli1 \
+     python3.10 \
++    python3-pip \
+     python3-psycopg2
+ 
+ # forbid creation of a main cluster when package is installed
+@@ -180,6 +181,12 @@ if [ "$DEMO" != "true" ]; then
+     done
+ fi
+ 
++pip3 install pgxnclient
++for version in $DEB_PG_SUPPORTED_VERSIONS; do
++  USE_PGXS=1 pgxn install --pg_config="/usr/lib/postgresql/${version}/bin/pg_config" pg_stat_monitor
++done
++pip3 uninstall --yes pgxnclient
++
+ # make it possible for cron to work without root
+ gcc -s -shared -fPIC -o /usr/local/lib/cron_unprivileged.so cron_unprivileged.c
+ 
+@@ -198,6 +205,7 @@ apt-get purge -y \
+                 postgresql \
+                 postgresql-all \
+                 postgresql-server-dev-* \
++                python3-pip \
+                 libpq-dev=* \
+                 libmagic1 \
+                 bsdmainutils