refactor: pull postgresql client from upstream docker image (#24)

Reviewed-on: #24
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

.gitea/workflows/cd.yaml

@@ -16,11 +16,11 @@ jobs:
       changes: ${{ steps.filter.outputs.code }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
       - name: Get changed files
         id: filter
-        uses: dorny/paths-filter@v3
+        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3
         with:
           filters: |
             code:
@@ -42,9 +42,9 @@ jobs:
       - ubuntu-latest
       - linux_${{ matrix.arch }}
     steps:
-      - uses: actions/checkout@v5
-      - uses: docker/setup-buildx-action@v3
-      - uses: docker/login-action@v3
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
+      - uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3
         with:
           registry: ${{ env.DOCKER_REGISTRY }}
           username: ${{ secrets.REGISTRY_USER }}
@@ -53,7 +53,7 @@ jobs:
         run: |
           echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}' | tr '[:upper:]' '[:lower:]') >> $GITHUB_OUTPUT
           echo REPO_VERSION=$(git describe --tags --always | sed 's/^v//') >> $GITHUB_OUTPUT
-      - uses: docker/build-push-action@v6
+      - uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
         with:
           context: .
           file: ./Dockerfile
@@ -72,7 +72,7 @@ jobs:
     outputs:
       tag: ${{ steps.tag.outputs.new-tag }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - uses: https://gitea.t000-n.de/t.behrendt/conventional-semantic-git-tag-increment@0.0.2
@@ -93,12 +93,12 @@ jobs:
       - create_tag
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       - id: meta
         run: |
           echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}' | tr '[:upper:]' '[:lower:]') >> $GITHUB_OUTPUT
           echo REPO_VERSION=$(git describe --tags --always | sed 's/^v//') >> $GITHUB_OUTPUT
-      - uses: docker/login-action@v3
+      - uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3
         with:
           registry: ${{ env.DOCKER_REGISTRY }}
           username: ${{ secrets.REGISTRY_USER }}

.gitea/workflows/ci.yaml

@@ -10,10 +10,10 @@ jobs:
       - ubuntu-latest
       - linux_amd64
     steps:
-      - uses: actions/checkout@v5
-      - uses: docker/setup-buildx-action@v3
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
       - name: Build image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
         with:
           context: .
           file: ./Dockerfile
@@ -27,7 +27,7 @@ jobs:
     name: Check syntax
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       - name: Check syntax
         run: |
           bash -n src/backup.sh

Dockerfile

@@ -1,10 +1,14 @@
-FROM alpine:3.22
+FROM docker.io/postgres:18.1@sha256:28bda6d50590658221007b10573830c941b483e9d1a5bc2713a3f60477df8389 AS postgresql
+
+FROM docker.io/alpine:3.22@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990c2ad8dd412 AS base
+
+COPY --from=postgresql /usr/bin/pg_dump /usr/local/bin/pg_dump
+COPY --from=postgresql /usr/bin/psql /usr/local/bin/psql
 
 RUN apk update && apk add --no-cache \
     bash \
     curl \
     restic \
-    postgresql-client \
     jq
 
 WORKDIR /app

renovate.json

@@ -1,3 +1,7 @@
 {
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "local>t.behrendt/renovate-configs:common",
+    "local>t.behrendt/renovate-configs:action"
+  ]
 }