add gh-action

.github/release.yml

@@ -0,0 +1,17 @@
+changelog:
+  exclude:
+    labels:
+      - ignore-for-release
+  categories:
+    - title: Breaking Changes 🛠
+      labels:
+        - breaking-change
+    - title: New Features 🎉
+      labels:
+        - enhancement
+    - title: Bug Fixes 🐛
+      labels:
+        - bug-fix
+    - title: Other Changes
+      labels:
+        - "*"

.github/workflows/action-version.yaml

@@ -0,0 +1,25 @@
+name: Release new tweeter version
+on:
+  release:
+    types: [released]
+  workflow_dispatch:
+    inputs:
+      TAG_NAME:
+        description: 'Tag name that the major tag will point to'
+        required: true
+
+permissions:
+  contents: write
+
+env:
+  TAG_NAME: ${{ github.event.inputs.TAG_NAME || github.event.release.tag_name }}
+
+jobs:
+  update_tag:
+    name: Update the major tag to include the ${{ github.event.inputs.TAG_NAME || github.event.release.tag_name }} changes
+    runs-on: ubuntu-latest
+    steps:
+      - name: Update the ${{ env.TAG_NAME }} tag
+        uses: actions/publish-action@v0.1.0
+        with:
+          source-tag: ${{ env.TAG_NAME }}

.github/workflows/first.yaml

@@ -0,0 +1,8 @@
+name: first-workflow
+on: workflow_dispatch
+jobs:
+  echo:
+    runs-on: ubuntu-latest
+    steps:
+      - name: echo step
+        run: echo 'Hello World!'

.github/workflows/image-release.yaml

@@ -0,0 +1,30 @@
+name: release image
+on:
+  push:
+    tags:
+      - 'image-v*' # push events for tags matching image-v for version (image-v1.0, etc)
+permissions:
+  contents: read
+  packages: write
+jobs:
+  image:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: set env
+        run: echo "RELEASE_VERSION=${GITHUB_REF:17}" >> $GITHUB_ENV # refs/tags/image-v1.0.0 substring starting at 1.0.0
+      - name: setup buildx
+        uses: docker/setup-buildx-action@v1
+      - name: login to GitHub container registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: build and push
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: |
+            ghcr.io/packtpublishing/tweeter:${{ env.RELEASE_VERSION }}
+            ghcr.io/packtpublishing/tweeter:latest

.github/workflows/tweeter-automation.yaml

@@ -0,0 +1,101 @@
+name: tweeter-automation
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.*'
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+jobs:
+  test:
+    permissions:
+      contents: read
+    strategy:
+      matrix:
+        go-version: [ 1.16.x, 1.17.x ]
+        os: [ ubuntu-latest, macos-latest, windows-latest ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: install go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go-version }}
+      - uses: actions/checkout@v2
+      - name: lint with golangci-lint
+        uses: golangci/golangci-lint-action@v2
+      - name: run go test
+        run: go test ./...
+  test-action:
+    permissions:
+      contents: read
+      packages: read
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: test the tweeter action in DRY_RUN
+        id: tweeterAction
+        env:
+          DRY_RUN: true
+        uses: ./
+        with:
+          message: hello world!
+          accessToken: fake
+          accessTokenSecret: fake
+          apiKey: fake
+          apiKeySecret: fake
+      - run: echo ${{ steps.tweeterAction.outputs.sentMessage }} from dry run test
+  release:
+    permissions:
+      contents: write
+    needs: test
+    if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set RELEASE_VERSION ENV var
+        run: echo "RELEASE_VERSION=${GITHUB_REF:10}" >> $GITHUB_ENV
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.17.x
+      - name: install gox
+        run: go install github.com/mitchellh/gox@v1.0.1
+      - name: build cross-platform binaries
+        env:
+          PLATFORMS: darwin/amd64 darwin/arm64 windows/amd64 linux/amd64 linux/arm64
+          VERSION_INJECT: github.com/PacktPublishing/Go-for-DevOps/chapter/9/pkg/tweeter.Version
+          OUTPUT_PATH_FORMAT: ./bin/${{ env.RELEASE_VERSION }}/{{.OS}}/{{.Arch}}/tweeter
+        run: |
+          gox -osarch="${PLATFORMS}" -ldflags "-X ${VERSION_INJECT}=${RELEASE_VERSION}" -output "${OUTPUT_PATH_FORMAT}"
+      - name: generate release notes
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh api -X POST 'repos/{owner}/{repo}/releases/generate-notes' \
+            -F commitish=${{ env.RELEASE_VERSION }} \
+            -F tag_name=${{ env.RELEASE_VERSION }} \
+            > tmp-release-notes.json
+      - name: gzip the bins
+        env:
+          OUT_BASE: ./bin/${{ env.RELEASE_VERSION }}
+        run: |
+          tar -czvf "${OUT_BASE}/darwin/amd64/tweeter_darwin_amd64.tar.gz" -C "${OUT_BASE}/darwin/amd64" tweeter
+          tar -czvf "${OUT_BASE}/darwin/arm64/tweeter_darwin_arm64.tar.gz" -C "${OUT_BASE}/darwin/arm64" tweeter
+          tar -czvf "${OUT_BASE}/windows/amd64/tweeter_windows_amd64.tar.gz" -C "${OUT_BASE}/windows/amd64" tweeter.exe
+          tar -czvf "${OUT_BASE}/linux/amd64/tweeter_linux_amd64.tar.gz" -C "${OUT_BASE}/linux/amd64" tweeter
+          tar -czvf "${OUT_BASE}/linux/arm64/tweeter_linux_arm64.tar.gz" -C "${OUT_BASE}/linux/arm64" tweeter
+      - name: create release
+        env:
+          OUT_BASE: ./bin/${{ env.RELEASE_VERSION }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          jq -r .body tmp-release-notes.json > tmp-release-notes.md
+          gh release create ${{ env.RELEASE_VERSION }} \
+            -t "$(jq -r .name tmp-release-notes.json)" \
+            -F tmp-release-notes.md \
+            "${OUT_BASE}/darwin/amd64/tweeter_darwin_amd64.tar.gz#tweeter_osx_amd64" \
+            "${OUT_BASE}/darwin/arm64/tweeter_darwin_arm64.tar.gz#tweeter_osx_arm64" \
+            "${OUT_BASE}/windows/amd64/tweeter_windows_amd64.tar.gz#tweeter_windows_amd64" \
+            "${OUT_BASE}/linux/amd64/tweeter_linux_amd64.tar.gz#tweeter_linux_amd64" \
+            "${OUT_BASE}/linux/arm64/tweeter_linux_arm64.tar.gz#tweeter_linux_arm64"

.gitignore

@@ -0,0 +1,17 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+.idea

Dockerfile

@@ -0,0 +1,26 @@
+FROM golang:1.17 as builder
+WORKDIR /workspace
+
+# Run this with docker build --build_arg $(go env GOPROXY) to override the goproxy
+ARG goproxy=https://proxy.golang.org
+ENV GOPROXY=$goproxy
+
+# Copy the Go Modules manifests
+COPY go.mod go.mod
+COPY go.sum go.sum
+# Cache deps before building and copying source so that we don't need to re-download as much
+# and so that source changes don't invalidate our downloaded layer
+RUN go mod download
+
+# Copy the sources
+COPY ./ ./
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -a -ldflags '-extldflags "-static"' \
+    -o tweeter .
+
+# Copy the action into a thin image
+FROM gcr.io/distroless/static:latest
+WORKDIR /
+COPY --from=builder /workspace/tweeter .
+ENTRYPOINT ["/tweeter"]

README.md

@@ -1,2 +1,58 @@
 # B18275-08-Automating-Workflows-with-GitHub-Actions-Code-Files
-The code files for chapter 8 of B18275 have been added on a separate repository of it's own.
+The code files for chapter 8 of B18275 have been added on a separate repository of its own.
+
+## DevOps for Go Tweeter
+The tweeter command line tool will send a tweet via Twitter.
+
+## Setup
+You can use tweeter to send a tweet or to output the message to STDOUT. If you want to send a tweet, you will need to set up a Twitter application.
+
+### Setup With a Twitter Application
+To send a tweet, you will need to create or use an existing Twitter account, create a Twitter application, and generate API credentials. All of this can be done through the
+[Twitter Developer Portal](https://developer.twitter.com/en/portal/projects-and-apps).
+
+### Setup Without a Twitter Application
+Some people may not want to set up a Twitter account. If you would like to use tweeter without sending tweets, use the `--dry-run` argument. This will cause the tool to write the message to STDOUT rather than sending the message to Twitter.
+
+## Inputs
+
+- `--message` **Required** the tweet message you would like to send
+- `--apiKey` the API key under Consumer Keys in the [Twitter developer portal](https://developer.twitter.com/en/portal/projects-and-apps)
+- `--apiKeySecret` the API key secret under Consumer Keys in the [Twitter developer portal](https://developer.twitter.com/en/portal/projects-and-apps)
+- `--accessToken` the access token under Authentication Tokens in the [Twitter developer portal](https://developer.twitter.com/en/portal/projects-and-apps)
+- `--accessTokenSecret` the access token secret under Authentications Tokens in the [Twitter developer portal](https://developer.twitter.com/en/portal/projects-and-apps)
+- `--dryRun` will skip authentication validation and sending the message to Twitter
+
+## Test
+```
+$ go test ./...
+?   	github.com/devopsforgo/github-actions	[no test files]
+ok  	github.com/devopsforgo/github-actions/pkg/tweeter	0.002s
+```
+
+## Run Help
+To see the command line arguments and descriptions, display the help.
+```
+$ go run . -h
+Usage of /tmp/go-build3731631588/b001/exe/github-actions:
+      --accessToken string         twitter access token
+      --accessTokenSecret string   twitter access token secret
+      --apiKey string              twitter api key
+      --apiKeySecret string        twitter api key secret
+      --dryRun                     if true, then a tweet will not be sent
+      --message string             message you'd like to send to twitter
+pflag: help requested
+exit status 2
+```
+
+## Run Without Sending a Tweet
+The `--dryRun` argument will skip validation of the authentication arguments and output the message to STDOUT.
+```
+$ go run . --dryRun --message foo
+```
+
+## Run Sending a Tweet
+Without `--dryRun` specified, tweeter will send the `--messsage` argument as a Tweet.
+```
+$ go run . --message foo --apiKey 123 --apiKeySecret secret --accessToken token --accessTokenSecret secret
+```

action.yaml

@@ -0,0 +1,38 @@
+name: Tweeter Action
+author: DevOps for Go
+description: Simple action to send a tweet via an GitHub Action.
+inputs:
+  message:
+    description: 'message you want to tweet'
+    required: true
+  apiKey:
+    description: 'api key for Twitter api'
+    required: true
+  apiKeySecret:
+    description: 'api key secret for Twitter api'
+    required: true
+  accessToken:
+    description: 'access token for Twitter api'
+    required: true
+  accessTokenSecret:
+    description: 'access token secret for Twitter api'
+    required: true
+outputs:
+  errorMessage:
+    description: 'if something went wrong, the error message'
+  sentMessage:
+    description: 'message sent to Twitter'
+runs:
+  using: docker
+  image: Dockerfile
+  args:
+    - --message
+    - "${{ inputs.message }}"
+    - --apiKey
+    - ${{ inputs.apiKey }}
+    - --apiKeySecret
+    - ${{ inputs.apiKeySecret }}
+    - --accessToken
+    - ${{ inputs.accessToken }}
+    - --accessTokenSecret
+    - ${{ inputs.accessTokenSecret }}

go.mod

@@ -0,0 +1,18 @@
+module github.com/PacktPublishing/Go-for-DevOps/chapter/9
+
+go 1.17
+
+require (
+	github.com/dghubble/go-twitter v0.0.0-20210609183100-2fdbf421508e
+	github.com/dghubble/oauth1 v0.7.0
+	github.com/hashicorp/go-multierror v1.1.1
+	github.com/pkg/errors v0.9.1
+	github.com/spf13/pflag v1.0.5
+)
+
+require (
+	github.com/cenkalti/backoff v2.1.1+incompatible // indirect
+	github.com/dghubble/sling v1.3.0 // indirect
+	github.com/google/go-querystring v1.0.0 // indirect
+	github.com/hashicorp/errwrap v1.0.0 // indirect
+)

go.sum

@@ -0,0 +1,25 @@
+github.com/cenkalti/backoff v2.1.1+incompatible h1:tKJnvO2kl0zmb/jA5UKAt4VoEVw1qxKWjE/Bpp46npY=
+github.com/cenkalti/backoff v2.1.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dghubble/go-twitter v0.0.0-20210609183100-2fdbf421508e h1:o0sI/cfhAXdtAbiIVeTd4hmwtwgs4cQFwRBhmbx8AKY=
+github.com/dghubble/go-twitter v0.0.0-20210609183100-2fdbf421508e/go.mod h1:xfg4uS5LEzOj8PgZV7SQYRHbG7jPUnelEiaAVJxmhJE=
+github.com/dghubble/oauth1 v0.7.0 h1:AlpZdbRiJM4XGHIlQ8BuJ/wlpGwFEJNnB4Mc+78tA/w=
+github.com/dghubble/oauth1 v0.7.0/go.mod h1:8pFdfPkv/jr8mkChVbNVuJ0suiHe278BtWI4Tk1ujxk=
+github.com/dghubble/sling v1.3.0 h1:pZHjCJq4zJvc6qVQ5wN1jo5oNZlNE0+8T/h0XeXBUKU=
+github.com/dghubble/sling v1.3.0/go.mod h1:XXShWaBWKzNLhu2OxikSNFrlsvowtz4kyRuXUG7oQKY=
+github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
+github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
+github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
+github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
+github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
+github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=