add support for pg_dumpall in logical backup

.github/workflows/logical-backup.yml

@@ -0,0 +1,46 @@
+name: Build Logical backup
+
+on:
+  push:
+    branches: [ "add-feature-logicalbackup" ]
+    paths: 'logical-backup/**'
+    tags: [ "v*" ]
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Generate container metadata
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ghcr.io/obmondo/logical-backup
+          tags: |
+            type=ref,event=branch,enable=${{ !endsWith(github.ref, github.event.repository.default_branch) }}
+            type=raw,value=latest,enable=${{ endsWith(github.ref, github.event.repository.default_branch) }}
+            type=ref,event=tag
+          flavor: |
+            latest=false
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build & push container image
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          file: "./logical-backup/Dockerfile"
+          context: .
+          labels: ${{ steps.meta.outputs.labels }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}

logical-backup/dump.sh

@@ -7,7 +7,7 @@ IFS=$'\n\t'
 # PGHOST PGPASSWORD
 
 ALL_DB_SIZE_QUERY="select sum(pg_database_size(datname)::numeric) from pg_database;"
-PG_BIN=/usr/lib/postgresql/$PG_VERSION/bin
+PG_BIN=/usr/bin
 DUMP_SIZE_COEFF=5
 ERRORCOUNT=0
 POSTGRES_OPERATOR=spilo
@@ -21,7 +21,7 @@ function estimate_size {
 function dump {
   echo "Taking dump of ${PGDATABASE} from ${PGHOST}"
   # settings are taken from the environment
-  "$PG_BIN"/pg_dump
+  "$PG_BIN"/pg_dumpall --exclude-database='postgres'
 }
 
 function compress {
@@ -42,7 +42,7 @@ function aws_delete_objects {
   [[ ! -z "${LOGICAL_BACKUP_S3_ENDPOINT}" ]] && args+=("--endpoint-url=${LOGICAL_BACKUP_S3_ENDPOINT}")
   [[ ! -z "${LOGICAL_BACKUP_S3_REGION}" ]] && args+=("--region=${LOGICAL_BACKUP_S3_REGION}")
 
-  aws s3api delete-objects "${args[@]}" --delete Objects=["$(printf {Key=%q}, "$@")"],Quiet=true
+  aws s3api delete-objects "${args[@]}" --delete Objects=["$(printf \{Key=%q\}, "$@")"],Quiet=true
 }
 export -f aws_delete_objects
 
@@ -129,4 +129,4 @@ else
   [[ ${PIPESTATUS[0]} != 0 || ${PIPESTATUS[1]} != 0 || ${PIPESTATUS[2]} != 0 ]] && (( ERRORCOUNT += 1 ))
   set +x
   exit $ERRORCOUNT
-fi
+fi