Build custom image for postgres db (#57)

* Build custom image for postgres db

* Build custom image for postgres db

Author: edeandrea

.github/workflows/build-publish-postgres-ghcr.yml

@@ -0,0 +1,54 @@
+name: Build and publish postgres image
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+    paths:
+      - scripts/postgres-db.Dockerfile
+      - .github/workflows/build-publish-postgres-ghcr.yml
+
+defaults:
+  run:
+    shell: bash
+
+concurrency:
+  group: "workflow = ${{ github.workflow }}, ref = ${{ github.event.ref }}, pr = ${{ github.event.pull_request.id }}"
+  cancel-in-progress: false
+
+permissions:
+  packages: write
+
+jobs:
+  build-publish-image:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          install: true
+
+      - name: Login to ghcr
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push images
+        uses: docker/build-push-action@v6
+        with:
+          file: scripts/postgres-db.Dockerfile
+          context: scripts
+          platforms: linux/amd64,linux/arm64
+          push: true
+          load: false
+          tags: ghcr.io/${{ github.repository_owner }}/postgres-17-perf:${{ github.ref_name }}

scripts/postgres-db.Dockerfile

@@ -0,0 +1,7 @@
+FROM postgres:17
+COPY dbdata/*.sql /docker-entrypoint-initdb.d
+EXPOSE 5432
+
+ENV POSTGRES_USER=fruits \
+		POSTGRES_PASSWORD=fruits \
+		POSTGRES_DB=fruits