add deploy workflow

.github/workflows/deploy.yml

@@ -0,0 +1,67 @@
+name: Deploy to GKE
+
+on:
+  push:
+    tags:
+      - v*
+
+jobs:
+  build:
+    name: Building and push image to gcr
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Configure GCR credentials
+        uses: google-github-actions/auth@v2
+        with:
+          create_credentials_file: true
+          project_id: ${{ secrets.PROJECT_ID }}
+          credentials_json: ${{ secrets.GCR_SERVICE_ACCOUNT_KEY }}
+
+      - name: Set up Cloud SDK
+        uses: google-github-actions/setup-gcloud@v2
+
+      - name: Configure Docker client
+        run: |-
+          gcloud auth configure-docker --quiet
+
+      - name: Get tag
+        run: echo "tag=$(echo ${GITHUB_REF_NAME})" >>$GITHUB_OUTPUT
+        id: get-tag
+
+      - name: Get short sha
+        run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+        id: get-short
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build image discord-bot and push it
+        uses: docker/build-push-action@v5
+        with:
+          push: true
+          platforms: linux/amd64
+          file: Dockerfile
+          target: prod
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          tags: |
+            eu.gcr.io/spotistats-a49da/discord-bot:${{ steps.get-tag.outputs.tag }}-${{ steps.get-short.outputs.sha_short }}
+            eu.gcr.io/spotistats-a49da/discord-bot:latest
+
+      - name: Repository Dispatch
+        uses: peter-evans/repository-dispatch@v3
+        with:
+          token: ${{ secrets.PAT }}
+          repository: statsfm/argocd
+          event-type: image-updates-discord-bot
+          client-payload: >-
+            {
+              "tag": "${{ steps.get-tag.outputs.tag }}-${{ steps.get-short.outputs.sha_short }}"
+            }