refinement github actions workflows

.github/workflows/on-push-version-tag.yml

@@ -0,0 +1,10 @@
+name: On push version tag
+on:
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+jobs:
+  build-push:
+    uses: ./.github/workflows/wf-build.yml
+    with:
+      needs-push: true

.github/workflows/on-push.yml

@@ -0,0 +1,8 @@
+name: On push
+on:
+  push:
+    tags-ignore:
+      - "[0-9]+.[0-9]+.[0-9]+"
+jobs:
+  build:
+    uses: ./.github/workflows/wf-build.yml

.github/workflows/wf-build.yml

@@ -0,0 +1,36 @@
+name: Build
+on:
+  workflow_call:
+    inputs:
+      needs-push:
+        type: boolean
+        default: false
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Get tag
+        id: get_tag
+        run: echo "::set-output name=tag::${GITHUB_REF##*/}"
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: |
+            linux/amd64
+            linux/arm64
+          push: true
+          tags: |
+            mackerel/mackerel-agent:latest
+            mackerel/mackerel-agent:${{ steps.get_tag.outputs.tag }}