init greeter server

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10

.github/workflows/builder.yaml

@@ -0,0 +1,57 @@
+name: builder
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            bavix/greeter-server
+            ghcr.io/bavix/greeter-server
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      -
+        name: Login to GitHub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      -
+        name: Login to Dockerhub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_LOGIN }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: linux/amd64,linux/arm64

.gitignore

@@ -19,3 +19,5 @@
 
 # Go workspace file
 go.work
+
+.idea/

Dockerfile

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+ARG BUILD_ARG_GO_VERSION=1.21
+ARG BUILD_ARG_ALPINE_VERSION=3.18
+FROM golang:${BUILD_ARG_GO_VERSION}-alpine${BUILD_ARG_ALPINE_VERSION} AS builder
+RUN apk add --update --no-cache curl ca-certificates
+
+WORKDIR /src
+
+COPY . .
+
+RUN curl "https://raw.githubusercontent.com/grpc/grpc-go/master/examples/helloworld/greeter_server/main.go" -o main.go
+
+RUN go mod tidy && go build -o greeter
+
+FROM alpine:${BUILD_ARG_ALPINE_VERSION}
+WORKDIR /
+ENV USER=greeter
+ENV UID=10001
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    "${USER}"
+RUN apk add --update --no-cache tzdata curl
+
+COPY --from=builder /src/greeter .
+
+USER greeter:greeter
+
+CMD ["/greeter"]

README.md

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+# Greeter Server builder
+
+Automatically builds a greeter server build from source: https://github.com/grpc/grpc-go
+
+---
+Supported by
+
+[![Supported by JetBrains](https://cdn.rawgit.com/bavix/development-through/46475b4b/jetbrains.svg)](https://www.jetbrains.com/)

go.mod

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+module github.com/bavix/greeter-server
+
+go 1.21.0