ci: add build and push image workflow

Author: tillywoodfield

.github/workflows/build-and-push-image.yml

@@ -0,0 +1,23 @@
+name: CI
+on: [push]
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    env:
+      IMAGE_NAME: "oc4ids-datastore-api"
+    steps:
+      - uses: actions/checkout@v4
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push image
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+          echo $IMAGE_ID
+          docker build . -t ${IMAGE_ID}
+          docker push ${IMAGE_ID}:latest