Merge pull request #1 from chickenzord/feat/docker

feat: Dockerize

.github/workflows/docker.yml

@@ -0,0 +1,60 @@
+name: Docker
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - 'main'
+    paths:
+      - 'Dockerfile'
+      - '.dockerignore'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Login to Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/go.yml

@@ -0,0 +1,25 @@
+name: go
+
+on:
+  push:
+    tags:
+      - v*
+    branches:
+      - master
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+  pull-requests: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
+        with:
+          go-version: 1.21
+      - name: Test
+        run: go test -v ./...

.github/workflows/goreleaser.yml

@@ -3,7 +3,7 @@ name: goreleaser
 on:
   push:
     tags:
-      - '*'
+      - 'v*'
 
 permissions:
   contents: write

.github/workflows/lint.yml

@@ -0,0 +1,33 @@
+name: lint
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+
+  golangci-lint:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+          cache: false
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: v1.53
+
+  conventional-commits:
+    name: conventional-commits
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: webiny/action-conventional-commits@v1.1.0

Dockerfile

@@ -0,0 +1,13 @@
+FROM golang:1.21-alpine AS build
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download -x
+COPY . ./
+RUN CGO_ENABLED=0 go build -trimpath -o /bin/ksei-exporter ./exporter
+RUN CGO_ENABLED=0 go build -trimpath -o /bin/wei ./wei
+
+FROM alpine:edge
+RUN apk add -U curl ca-certificates && update-ca-certificates
+COPY --from=build /bin/ksei-exporter /bin/ksei-exporter
+COPY --from=build /bin/wei /bin/wei
+CMD [ "/bin/ksei-exporter" ]

exporter/main.go

@@ -16,14 +16,19 @@ import (
 )
 
 type Config struct {
-	Bind   string `envconfig:"bind" default:"0.0.0.0:8080"`
-	Router struct {
+	BindHost string `envconfig:"bind_host" default:"0.0.0.0"`
+	BindPort int    `envconfig:"bind_port" default:"8080"`
+	Router   struct {
 		URL      string `envconfig:"url"`
 		Username string `envconfig:"username"`
 		Password string `envconfig:"password"`
 	} `envconfig:"router"`
 }
 
+func (c *Config) Bind() string {
+	return fmt.Sprintf("%s:%d", c.BindHost, c.BindPort)
+}
+
 func main() {
 	_ = godotenv.Overload(".env")
 
@@ -53,12 +58,12 @@ func main() {
 	})))
 
 	log.Info().
-		Str("bind", cfg.Bind).
+		Str("bind", cfg.Bind()).
 		Str("url", cfg.Router.URL).
 		Str("user", cfg.Router.Username).
 		Msg("starting metrics exporter server")
 
-	if err := e.Start(cfg.Bind); err != nil {
+	if err := e.Start(cfg.Bind()); err != nil {
 		fmt.Println()
 		fmt.Println(err)
 		os.Exit(1)