[ Razorpay SQS Autoscaler ] Add github actions (#3)

* [ Razorpay SQS Autoscaler ] Add github actions

.github/workflows/build.yaml

@@ -0,0 +1,25 @@
+name: PR Workflow
+
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: build
+    steps:
+      - name: checkout
+        id: checkout
+        uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.PUBLIC_DOCKER_USERNAME }}
+          password: ${{ secrets.PUBLIC_DOCKER_PASSWORD }}
+      - name: build sqs-autoscaler-controller image
+        uses: docker/build-push-action@v2
+        with:
+          tags: razorpay/sqs-autoscaler-controller:${{ github.sha }}
+          push: true
+          file: Dockerfile
+          build-args: GIT_COMMIT_HASH=${{ github.sha }}

Dockerfile

@@ -1,5 +1,14 @@
-FROM scratch
+FROM golang:1.20.2-alpine3.17
 
-ADD bin/sqs-autoscaler-controller /sqs-autoscaler-controller
 
-ENTRYPOINT ["/sqs-autoscaler-controller"]
+ENV SRC_DIR=/go/src/github.com/razorpay/sqs-autoscaler-controller
+
+WORKDIR $SRC_DIR
+
+ADD . $SRC_DIR/
+
+RUN go mod download && \
+    CGO_ENABLED=0 GOOS=linux go build -o /bin/sqs-autoscaler-controller main.go && \
+    chmod +x /bin/sqs-autoscaler-controller
+
+ENTRYPOINT ["/bin/sqs-autoscaler-controller"]