rework: remplace promu by goreleaser, replace travis by github actions

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"

.github/workflows/main.yml

@@ -0,0 +1,68 @@
+name: goreleaser
+
+on:
+  push:
+    # not not consider simplec commit
+    branches:
+      - '!*'
+    # consider only release and pre-release tags
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+'
+      - 'v[0-9]+.[0-9]+.[0-9]+-rc[0-9]+'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: set up go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.18
+
+      - name: cache go modules
+        uses: actions/cache@v1
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+
+      - name: tests modules
+        run: |
+          go mod vendor
+          if [ ! -z "$(git status --porcelain)" ]; then
+            echo "::error::vendor directory if not synched with go.mod, please run go mod vendor"
+            exit 1
+          fi
+
+          go mod tidy
+          if [ ! -z "$(git status --porcelain)" ]; then
+            echo "::error::modules are not tidy, please run go mod tidy"
+            exit 1
+          fi
+
+      - name: tests
+        run: |
+          go test -v ./...
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: run goreleaser
+        uses: goreleaser/goreleaser-action@v2
+        if: success() && startsWith(github.ref, 'refs/tags/')
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          USER: github-actions
+

.gitignore

@@ -1,7 +1,3 @@
-/.build
-/.release
-/.tarballs
+/dist
 /cf_exporter
 *.tar.gz
-*.test
-*-stamp

.goreleaser.yml

@@ -0,0 +1,97 @@
+project_name: cf_exporter
+
+builds:
+  - id: binary
+    dir: .
+    main: ./main.go
+    binary: cf_exporter
+    env:
+      - CGO_ENABLED=0
+    ldflags:
+      - -s
+      - -w
+      - -X github.com/prometheus/common/version.Version={{.Version}}
+      - -X github.com/prometheus/common/version.Revision={{.FullCommit}}
+      - -X github.com/prometheus/common/version.Branch={{.Branch}}
+      - -X github.com/prometheus/common/version.BuildUser={{.Env.USER}}
+      - -X github.com/prometheus/common/version.BuildDate={{.Date}}
+      - -X code.cloudfoundry.org/cli/version/binaryVersion={{.Version}}
+    goos:
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - 386
+      - arm
+      - arm64
+      - ppc64
+      - ppc64le
+    goarm: [5,6,7]
+    ignore:
+      - goos: darwin
+        goarch: arm
+      - goos: darwin
+        goarch: arm64
+      - goos: darwin
+        goarch: ppc64
+      - goos: darwin
+        goarch: ppc64le
+      - goos: darwin
+        goarch: 386
+      - goos: windows
+        goarch: arm
+      - goos: windows
+        goarch: arm64
+      - goos: windows
+        goarch: ppc64
+      - goos: windows
+        goarch: ppc64le
+
+archives:
+  - id: archives
+    builds: [binary]
+    format: "tar.gz"
+    name_template: '{{ .ProjectName }}_{{ .Version }}.{{ .Os }}-{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}'
+    wrap_in_directory: true
+    files:
+      - LICENSE
+      - NOTICE
+      - README*
+      - CHANGELOG*
+      - docs/*
+    format_overrides:
+      - goos: windows
+        format: zip
+
+changelog:
+  sort: asc
+  use: github
+  filters:
+    exclude:
+    - 'docs'
+    - '\.md'
+
+checksum:
+  name_template: checksums.txt
+  algorithm: sha256
+
+dockers:
+  - goos: linux
+    goarch: amd64
+    dockerfile: ./packages/docker/Dockerfile
+    image_templates:
+      - "boshprometheus/cf-exporter:latest"
+      - "boshprometheus/cf-exporter:{{ .Tag }}"
+      - "boshprometheus/cf-exporter:v{{ .Major }}"
+      - "boshprometheus/cf-exporter:v{{ .Major }}.{{ .Minor }}"
+    build_flag_templates:
+      - "--label=org.opencontainers.image.created={{ .Date }}"
+      - "--label=org.opencontainers.image.title={{ .ProjectName }}"
+      - "--label=org.opencontainers.image.revision={{ .FullCommit }}"
+      - "--label=org.opencontainers.image.version={{ .Version }}"
+      - "--label=org.opencontainers.image.source={{ .GitURL }}"
+
+release:
+  prerelease: auto
+  name_template: '{{.Tag}}'

packages/docker/Dockerfile

@@ -1,7 +1,7 @@
 FROM        quay.io/prometheus/busybox:latest
 MAINTAINER  Ferran Rodenas <frodenas@gmail.com>
 
-COPY cf_exporter /bin/cf_exporter
+ADD cf_exporter /bin/cf_exporter
 
 ENTRYPOINT ["/bin/cf_exporter"]
-EXPOSE     9193
+EXPOSE     9193