Introduce yaml linter (#362)

Add yamllint and update the yml files accordingly.

Author: miry

.editorconfig

@@ -11,7 +11,7 @@ max_line_length          = 100
 [Makefile]
 indent_style = tab
 
-[scripts/*, *.sh]
+[{scripts/*, *.sh}]
 max_line_length    = 80
 indent_style       = space
 indent_size        = 2
@@ -20,3 +20,7 @@ binary_next_line   = true
 switch_case_indent = true
 space_redirects    = true
 keep_padding       = true
+
+[*.{yaml,yml}]
+indent_style       = space
+indent_size        = 2

.github/dependabot.yml

@@ -1,3 +1,4 @@
+---
 # 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:
@@ -6,10 +7,10 @@
 version: 2
 updates:
   - package-ecosystem: gomod
-    directory: "/"
+    directory: /
     schedule:
       interval: weekly
   - package-ecosystem: github-actions
-    directory: "/"
+    directory: /
     schedule:
       interval: weekly

.github/probots.yml

@@ -1,2 +1,4 @@
+---
+
 enabled:
   - cla

.github/workflows/analysis.yml

@@ -1,3 +1,5 @@
+---
+
 name: Analysis
 
 on:
@@ -6,32 +8,33 @@ on:
   pull_request:
     branches: [ master ]
   schedule:
-    - cron: '13 7 * * 6'
+    - cron: 13 7 * * 6
 
 jobs:
   linting:
     runs-on: ubuntu-latest
 
     steps:
-      -
-        name: checkout
+      - name: checkout
         uses: actions/checkout@v2
         with:
           fetch-depth: 0
 
-      -
-        name: golangci-lint
+      - name: golangci-lint
         uses: golangci/golangci-lint-action@5c56cd6c9dc07901af25baab6f2b0d9f3b7c3018
         with:
-          version: v1.42.1
+          version: v1.43.0
 
-      -
-        name: shellcheck
+      - name: shellcheck
         uses: azohra/shell-linter@6bbeaa868df09c34ddc008e6030cfe89c03394a1
         with:
-          path: scripts/*
+          path: scripts/test-*
           severity: error
 
+      - name: yaml-lint
+        uses: ibiqlik/action-yamllint@v3
+        with:
+          config_file: .yamllint.yml
 
   vulnerabilities:
     runs-on: ubuntu-latest
@@ -40,18 +43,15 @@ jobs:
       security-events: write
 
     steps:
-      -
-        name: checkout
+      - name: checkout
         uses: actions/checkout@v2
         with:
           fetch-depth: 0
 
-      -
-        name: initialize
+      - name: initialize
         uses: github/codeql-action/init@v1
         with:
           languages: go
 
-      -
-        name: codeql analyze
+      - name: codeql analyze
         uses: github/codeql-action/analyze@v1

.github/workflows/release.yml

@@ -1,8 +1,10 @@
+---
+
 name: Release
 
 on:
   push:
-    tags: [ 'v*.*.*' ]
+    tags: [ v*.*.* ]
 
 env:
   REGISTRY: ghcr.io
@@ -34,7 +36,8 @@ jobs:
       -
         name: Verify tag signature
         run: |
-          # NOTE: Solve the problem with Github action checkout https://github.com/actions/checkout/issues/290
+          # NOTE: Solve the problem with Github action checkout
+          # https://github.com/actions/checkout/issues/290
           git fetch --tags --force
 
           version=${GITHUB_REF#refs/tags/*}

.github/workflows/test.yml

@@ -1,3 +1,5 @@
+---
+
 name: Test
 
 on:

.golangci.yml

@@ -1,3 +1,5 @@
+---
+
 linters:
   disable-all: true
   enable:

.goreleaser.yml

@@ -1,3 +1,5 @@
+---
+
 project_name: toxiproxy
 
 env:
@@ -33,6 +35,7 @@ builds:
     ignore:
       - goos: windows
         goarch: arm64
+
       - goarch: arm
 
     ldflags:
@@ -43,15 +46,15 @@ builds:
     goarch:
       - arm
     goarm:
-      - 6
-      - 7
+      - "6"
+      - "7"
     ignore:
       - goos: windows
         goarch: arm
     binary: toxiproxy-server-{{.Os}}-{{.Arch}}v{{.Arm}}
 
   - &build_client
-    <<: *build_default 
+    <<: *build_default
     id: client
     main: ./cmd/cli
     binary: toxiproxy-cli-{{.Os}}-{{.Arch}}
@@ -61,8 +64,8 @@ builds:
     goarch:
       - arm
     goarm:
-      - 6
-      - 7
+      - "6"
+      - "7"
     ignore:
       - goos: windows
         goarch: arm
@@ -86,8 +89,7 @@ snapshot:
   name_template: "{{ incpatch .Version }}-next"
 
 nfpms:
-  -
-    id: packages
+  - id: packages
     package_name: toxiproxy
     homepage: https://github.com/Shopify/toxiproxy
     maintainer: Shopify Opensource <opensource@shopify.com>
@@ -101,10 +103,10 @@ nfpms:
       - apk
       - deb
       - rpm
-    # NOTE: Starting with Ubuntu 15.04, Upstart will be deprecated in favor of Systemd.
-    # contents:
-    #   - src: share/toxiproxy.conf
-    #     dst: /etc/init/toxiproxy.conf
+      # NOTE: Starting with Ubuntu 15.04, Upstart will be deprecated in favor of Systemd.
+      # contents:
+      #   - src: share/toxiproxy.conf
+      #     dst: /etc/init/toxiproxy.conf
 
 dockers:
   - &docker
@@ -149,7 +151,7 @@ dockers:
       - --label=org.opencontainers.image.licenses=MIT
   - <<: *docker
     goarch: arm
-    goarm: 7
+    goarm: "7"
     image_templates:
       - ghcr.io/shopify/toxiproxy:{{ .Version }}-armv7
       - ghcr.io/shopify/toxiproxy:v{{ .Major }}-armv7
@@ -167,7 +169,7 @@ dockers:
       - --label=org.opencontainers.image.licenses=MIT
   - <<: *docker
     goarch: arm
-    goarm: 6
+    goarm: "6"
     image_templates:
       - ghcr.io/shopify/toxiproxy:{{ .Version }}-armv6
       - ghcr.io/shopify/toxiproxy:v{{ .Major }}-armv6
@@ -185,15 +187,13 @@ dockers:
       - --label=org.opencontainers.image.licenses=MIT
 
 docker_manifests:
-  -
-    name_template: ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}
+  - name_template: ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}
     image_templates:
       - ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}-amd64
       - ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}-arm64
       - ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}-armv6
       - ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}-armv7
-  -
-    name_template: ghcr.io/shopify/{{ .ProjectName }}:latest
+  - name_template: ghcr.io/shopify/{{ .ProjectName }}:latest
     image_templates:
       - ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}-amd64
       - ghcr.io/shopify/{{ .ProjectName }}:{{ .Version }}-arm64
@@ -204,20 +204,19 @@ changelog:
   sort: asc
   filters:
     exclude:
-      - '^docs:'
-      - '^test:'
-      - '^Merge'
+      - "^docs:"
+      - "^test:"
+      - ^Merge
 
 archives:
-  -
-    id: archive_binaries
+  - id: archive_binaries
     format: binary
     name_template: "{{ .Binary }}"
     builds:
       - server
       - client
-  -
-    id: archive_default
+
+  - id: archive_default
     format: tar.gz
     builds:
       - pkg-server

.yamllint.yml

@@ -0,0 +1,32 @@
+---
+
+yaml-files:
+  - "*.yaml"
+  - "*.yml"
+
+ignore: |
+  vendor/**/*
+  dist/*.yaml
+
+rules:
+  comments:
+    require-starting-space: true
+  comments-indentation: enable
+  document-start:
+    present: true
+  indentation:
+    spaces: 2
+    indent-sequences: true
+    check-multi-line-strings: true
+  line-length:
+    max: 100
+    level: warning
+    allow-non-breakable-words: true
+    allow-non-breakable-inline-mappings: false
+  key-duplicates: enable
+  new-lines:
+    type: unix
+  trailing-spaces: enable
+  quoted-strings:
+    quote-type: double
+    required: only-when-needed

CHANGELOG.md

@@ -5,6 +5,7 @@
 * Rename `testing/` and `bin/` folders (#354, @strech)
 * Added verbose error on proxy upstream dialing (#355, @f-dg)
 * Improve server startup message (#358, @areveny)
+* Introduce yaml linter. (#362, @miry)
 
 # [2.3.0] - 2021-12-23