dockerfile, initial push to gcr workflow on tagging

.github/workflows/push-to-gcr.yml

@@ -0,0 +1,22 @@
+name: push docker image to gcr
+
+on:
+  create:
+    tags:
+      - '*'
+
+jobs:
+  push-docker-image-to-gcr:
+    runs-on: ubuntu-latest
+    steps:
+      - name: get the version
+        id: get_tag_name
+        run: echo ::set-output name=GIT_TAG_NAME::${GITHUB_REF/refs\/tags\//}
+      - name: build then push to gcr
+        uses: RafikFarhad/push-to-gcr-github-action@v3
+        with:
+          gcloud_service_key: ${{ secrets.GC_GCR_SERVICE_KEY }}
+          registry: us.gcr.io
+          project_id: bilgge
+          image_name: bilgge-api
+          image_tag: ${{ steps.get_tag_name.outputs.GIT_TAG_NAME}},latest

Dockerfile

@@ -0,0 +1,26 @@
+FROM ghcr.io/graalvm/graalvm-ce:ol8-java8-21.0.0 AS builder
+
+RUN cd /root && \
+    curl -L https://github.com/sbt/sbt/releases/download/v1.4.7/sbt-1.4.7.tgz --output sbt.tgz && \
+    tar xvf sbt.tgz && \
+    mv -v sbt /opt/sbt
+
+ENV PATH="/opt/sbt/bin:${PATH}"
+
+RUN mkdir /source
+WORKDIR /source
+
+COPY . .
+RUN sbt packArchive
+
+FROM ghcr.io/graalvm/graalvm-ce:ol8-java8-21.0.0
+
+RUN mkdir /app
+WORKDIR /app
+
+COPY --from=builder /source/target/bilgge-0.1.0.tar.gz .
+RUN tar xvf bilgge-0.1.0.tar.gz
+RUN rm -v bilgge-*.tar.gz && mv -v bilgge-* bilgge && cd bilgge/bin
+
+WORKDIR /app/bilgge/bin
+CMD ./bilgge