Merge pull request #33 from crazy-max/dockerfile

container based dev flow

.github/workflows/test.yml

@@ -9,16 +9,24 @@ on:
   pull_request:
 
 jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+      -
+        name: Run
+        uses: docker/bake-action@v2
+        with:
+          targets: validate
+
   test:
     runs-on: ubuntu-latest
-    env:
-      GO111MODULE: on
     strategy:
       fail-fast: false
       matrix:
-        go:
-          - 1.13
-          - 1.14
+        go_version:
           - 1.15
           - 1.16
           - 1.17
@@ -27,23 +35,13 @@ jobs:
       -
         name: Checkout
         uses: actions/checkout@v3
-      -
-        name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: ${{ matrix.go }}
-      -
-        name: Cache Go modules
-        uses: actions/cache@v3
-        with:
-          path: ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ matrix.go }}-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-${{ matrix.go }}-
       -
         name: Test
-        run: |
-          go test -coverprofile=coverage.txt -covermode=atomic ./...
+        uses: docker/bake-action@v2
+        with:
+          targets: test
+        env:
+          GO_VERSION: ${{ matrix.go_version }}
       -
         name: Upload coverage
         uses: codecov/codecov-action@v3

Dockerfile

@@ -0,0 +1,51 @@
+# syntax=docker/dockerfile:1
+
+ARG GO_VERSION="1.18"
+ARG GOLANGCI_LINT_VERSION="v1.45"
+
+FROM golangci/golangci-lint:${GOLANGCI_LINT_VERSION}-alpine AS golangci-lint
+
+FROM golang:${GO_VERSION}-alpine AS base
+RUN apk add --no-cache gcc git linux-headers musl-dev
+ENV CGO_ENABLED=0
+ENV GO111MODULE=on
+WORKDIR /src
+
+FROM base AS vendored
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/go/pkg/mod \
+  go mod tidy && go mod download && \
+  mkdir /out && cp go.mod go.sum /out
+
+FROM scratch AS vendor-update
+COPY --from=vendored /out /
+
+FROM vendored AS vendor-validate
+RUN --mount=type=bind,target=.,rw <<EOT
+set -e
+git add -A
+cp -rf /out/* .
+diff=$(git status --porcelain -- go.mod go.sum)
+if [ -n "$diff" ]; then
+  echo >&2 'ERROR: Vendor result differs. Please vendor your package with "docker buildx bake vendor"'
+  echo "$diff"
+  exit 1
+fi
+EOT
+
+FROM base AS lint
+RUN --mount=type=bind,target=. \
+  --mount=type=cache,target=/root/.cache \
+  --mount=from=golangci-lint,source=/usr/bin/golangci-lint,target=/usr/bin/golangci-lint \
+  golangci-lint run ./...
+
+FROM vendored AS test
+ENV CGO_ENABLED=1
+RUN --mount=type=bind,target=. \
+  --mount=type=cache,target=/root/.cache \
+  --mount=type=cache,target=/go/pkg/mod \
+  go test -v -coverprofile=/tmp/coverage.txt -covermode=atomic -race ./... && \
+  go tool cover -func=/tmp/coverage.txt
+
+FROM scratch AS test-coverage
+COPY --from=test /tmp/coverage.txt /coverage.txt

docker-bake.hcl

@@ -0,0 +1,41 @@
+variable "GO_VERSION" {
+  default = "1.18"
+}
+
+target "_common" {
+  args = {
+    GO_VERSION = GO_VERSION
+  }
+}
+
+group "default" {
+  targets = ["test"]
+}
+
+group "validate" {
+  targets = ["lint", "vendor-validate"]
+}
+
+target "lint" {
+  inherits = ["_common"]
+  target = "lint"
+  output = ["type=cacheonly"]
+}
+
+target "vendor-validate" {
+  inherits = ["_common"]
+  target = "vendor-validate"
+  output = ["type=cacheonly"]
+}
+
+target "vendor-update" {
+  inherits = ["_common"]
+  target = "vendor-update"
+  output = ["."]
+}
+
+target "test" {
+  inherits = ["_common"]
+  target = "test-coverage"
+  output = ["."]
+}

loader_flag.go

@@ -7,6 +7,7 @@ import (
 
 // FlagLoader is the structure representring a flag loader.
 type FlagLoader struct {
+	//nolint:structcheck,unused
 	filename string
 	cfg      FlagLoaderConfig
 }