Introduce CI pipelines for plugins

.github/CODEOWNERS

@@ -0,0 +1,4 @@
+# Botkube maintainers (email: [email protected])
+# Maintainers are listed alphabetically
+
+* @kubeshop/botkube-dev

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,28 @@
+---
+name: Bug
+about: Report a bug in the project
+labels: bug
+---
+
+<!-- Thank you for your contribution. Before you submit the issue:
+1. Search open and closed issues for duplicates.
+2. Read the contributing guidelines (CONTRIBUTING.md file on root of the repository).
+-->
+
+## Description
+
+<!-- Provide a clear and concise description of the problem.
+Describe where it appears, when it occurred, and what it affects.
+Provide all relevant technical details such as the Botkube version. -->
+
+## Expected behavior
+
+<!-- Describe what you expect to happen. -->
+
+## Actual behavior
+
+<!-- Describe what happens instead. -->
+
+## Steps to reproduce
+
+<!-- Steps to reproduce the issue. Attach all resources that can help us understand the bug, such as screenshots, links or files. -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,22 @@
+---
+name: Feature request
+about: Suggest how we can improve
+labels: enhancement
+---
+
+<!-- Thank you for your contribution. Before you submit the issue:
+1. Search open and closed issues for duplicates.
+2. Read the contributing guidelines (CONTRIBUTING.md file on root of the repository).
+-->
+
+## Overview
+
+<!-- Provide a clear and concise overview of the feature. -->
+
+## Acceptance Criteria
+
+<!-- Provide a list of conditions that must be satisfied to close this issue. -->
+
+## Reason
+
+<!-- Explain why we should add this feature. -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+<!-- Thank you for your contribution. Before you submit the pull request:
+1. Follow contributing guidelines, templates, the recommended Git workflow, and any related documentation.
+2. Test your changes and attach their results to the pull request.
+3. Update the relevant documentation.
+-->
+
+## Description
+
+Changes proposed in this pull request:
+
+- ...
+
+## Related issue(s)
+
+<!-- If you refer to a particular issue, provide its number.
+To close the issue after the pull request merge, use `Resolves #123` or `Fixes #123`.
+Otherwise, use `See also #123` or just `#123`. -->

.github/workflows/branch-pr-build.yml

@@ -0,0 +1,127 @@
+name: Branch and PR build
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+env:
+  GOLANGCI_LINT_TIMEOUT: 5m
+  GORELEASER_CURRENT_TAG: "v0.0.0-latest"
+  BUCKET_NAME: botkube-cloud-plugins-latest
+
+jobs:
+  cancel-previous-workflows:
+    name: Cancel previous workflows
+    runs-on: ubuntu-latest
+    if: github.event.pull_request.draft == false
+    # https://github.com/styfle/cancel-workflow-action#advanced-token-permissions
+    permissions:
+      actions: write
+
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@b173b6ec0100793626c2d9e6b90435061f4fc3e5
+        with:
+          access_token: ${{ github.token }}
+
+  lint-test:
+    name: Lint and test
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@v4
+      - name: "Set up Go"
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+          cache: true
+      - name: "Check code quality"
+        uses: golangci/golangci-lint-action@v3
+        with:
+          args: --timeout=${{ env.GOLANGCI_LINT_TIMEOUT }}
+      - name: "Run tests"
+        run: make test
+
+  build-plugins:
+    if: github.event_name == 'pull_request'
+    name: Build plugins without publish
+    runs-on: ubuntu-latest
+    needs: lint-test
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@v4
+
+      - name: "Set up Go"
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+          cache: true
+
+      - name: Install GoReleaser
+        uses: goreleaser/goreleaser-action@v5
+        with:
+          install-only: true
+          version: latest
+
+      - name: Build plugins and generate plugins index.yaml
+        env:
+          PLUGIN_DOWNLOAD_URL_BASE_PATH: ""
+        run: |
+          make build-plugins-archives
+          USE_ARCHIVE=true make gen-plugin-index
+
+  release-latest-plugins:
+    if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
+    name: Build and release latest plugins
+    runs-on: ubuntu-latest
+    needs: lint-test
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: GCP auth
+        uses: 'google-github-actions/auth@v2'
+        with:
+          credentials_json: ${{ secrets.CLOUD_PLUGINS_LATEST_BUCKET_CREDS }}
+
+      - name: 'Set up Cloud SDK'
+        uses: 'google-github-actions/setup-gcloud@v2'
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+          cache: true
+
+      - name: Install GoReleaser
+        uses: goreleaser/goreleaser-action@v5
+        with:
+          install-only: true
+          version: latest
+
+      - name: Build plugins and generate plugins index.yaml
+        env:
+          PLUGIN_DOWNLOAD_URL_BASE_PATH: ""
+        run: |
+          make build-plugins-archives
+          USE_ARCHIVE=true make gen-plugin-index
+
+      - name: Upload plugins to GCS
+        uses: google-github-actions/upload-cloud-storage@v2
+        with:
+          path: 'dist'
+          destination: '${{ env.BUCKET_NAME }}/'
+          glob: '*.tar.gz'
+          parent: false
+
+      - name: Upload plugin index to GCS
+        uses: google-github-actions/upload-cloud-storage@v2
+        with:
+          path: 'plugins-index.yaml'
+          destination: '${{ env.BUCKET_NAME }}/'
+
+      - name: 'Disable GCS caching'
+        run: 'gsutil -m setmeta -h "Cache-Control: no-cache, no-store"  gs://${{ env.BUCKET_NAME }}/*'

.github/workflows/release.yml

@@ -0,0 +1,31 @@
+name: Trigger release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        type: string
+        description: Version of the next release (e.g. v1.10.0)
+        required: true
+
+permissions:
+  contents: write
+
+jobs:
+  trigger-relase:
+    name: Trigger release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create tag
+        uses: actions/github-script@v7
+        with:
+          # Unfortunately PAT is required to create a tag and in that way trigger other workflow.
+          # Read more here: https://docs.github.com/en/actions/using-workflows/triggering-a-workflow#triggering-a-workflow-from-a-workflow
+          github-token: ${{ secrets.RELEASE_GH_DEV_ACCOUNT_PAT }}
+          script: |
+            github.rest.git.createRef({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              ref: 'refs/tags/${{ inputs.version }}',
+              sha: context.sha
+            })

.github/workflows/tag-build.yml

@@ -0,0 +1,61 @@
+name: Tag build
+
+on:
+  push:
+    tags:
+      - '*'
+
+env:
+  BUCKET_NAME: botkube-cloud-plugins
+  VERSION: "${{ github.ref_name }}"
+
+jobs:
+  release:
+    name: Release plugins
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v')
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: GCP auth
+        uses: 'google-github-actions/auth@v2'
+        with:
+          credentials_json: ${{ secrets.CLOUD_PLUGINS_BUCKET_CREDS }}
+
+      - name: 'Set up Cloud SDK'
+        uses: 'google-github-actions/setup-gcloud@v2'
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+          cache: true
+
+      - name: Install GoReleaser
+        uses: goreleaser/goreleaser-action@v5
+        with:
+          install-only: true
+          version: latest
+
+      - name: Build plugins and generate plugins index.yaml
+        env:
+          PLUGIN_DOWNLOAD_URL_BASE_PATH: "${{ env.VERSION }}"
+        run: |
+          make build-plugins-archives
+          USE_ARCHIVE=true make gen-plugin-index
+
+      - name: Upload plugins to GCS
+        uses: google-github-actions/upload-cloud-storage@v2
+        with:
+          path: 'dist'
+          destination: '${{ env.BUCKET_NAME }}/${{ env.VERSION }}'
+          glob: '*.tar.gz'
+          parent: false
+
+      - name: Upload plugin index to GCS
+        uses: google-github-actions/upload-cloud-storage@v2
+        with:
+          path: 'plugins-index.yaml'
+          destination: '${{ env.BUCKET_NAME }}/${{ env.VERSION }}'

.gitignore

@@ -0,0 +1,19 @@
+# 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/
+
+dist/
+plugins-index.yaml
+/.idea/

.golangci.yml

@@ -0,0 +1,41 @@
+run:
+  tests: true
+issues:
+  exclude-use-default: false
+  exclude:
+    # EXC0001 errcheck: source: https://github.com/kubernetes-sigs/controller-runtime/blob/master/.golangci.yml#L94
+    - Error return value of .((os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*print(f|ln)?|os\.(Un)?Setenv). is not checked
+    # G505: Blocklisted import crypto/sha1: weak cryptographic primitive
+    # This is used just for hashing in ArgoCD plugin
+    - G505
+linters:
+  disable-all: true
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - typecheck
+    - unused
+    - revive
+    - gofmt
+    - misspell
+    - gochecknoinits
+    - unparam
+    - exportloopref
+    - gosec
+    - goimports
+    - whitespace
+    - bodyclose
+    - gocyclo
+
+  fast: false
+
+linters-settings:
+  revive:
+    rules:
+      # Disable warns about capitalized and ended with punctuation error messages
+      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#error-strings
+      - name: error-strings
+        disabled: true

.goreleaser.plugin.tpl.yaml

@@ -0,0 +1,34 @@
+before:
+  hooks:
+    - go mod download
+
+builds:
+  <- range .>
+  - id: <.Name>
+    main: cmd/<.Type>/<.Name>/main.go
+    binary: <.Type>_<.Name>_{{ .Os }}_{{ .Arch }}
+
+    no_unique_dist_dir: true
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+    goarm:
+      - 7
+  <- end >
+
+archives:
+  <range .>    
+  - builds: [<.Name>]
+    id: <.Name>
+    files:
+      - none*
+    name_template: "{{ .Binary }}"
+  <end>
+
+snapshot:
+  name_template: 'v{{ .Version }}'