YAML linter (googleforgames#3358)

Adds a YAML linter to CI, using https://yamllint.readthedocs.io/

Author: Kalaiselvi84

.github/release.yml

@@ -1,3 +1,4 @@
+---
 # Copyright 2023 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -11,27 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 changelog:
   exclude:
-    labels:
-      - duplicate
-      - question
-      - invalid
-      - wontfix
+    labels: [duplicate, question, invalid, wontfix]
   categories:
     - title: Breaking changes
-      labels:
-        - kind/breaking
+      labels: [kind/breaking]
     - title: Implemented enhancements
-      labels:
-        - kind/feature
+      labels: [kind/feature]
     - title: Fixed bugs
-      labels:
-        - kind/bug
+      labels: [kind/bug]
     - title: Security fixes
-      labels:
-        - area/security
+      labels: [area/security]
     - title: Other
-      labels:
-        - "*"        
+      labels: ['*']

.github/workflows/close.yaml

@@ -1,3 +1,4 @@
+---
 # Copyright 2023 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,31 +19,27 @@
 # For more information, see:
 # https://github.com/actions/stale
 name: Close Old
-
 on:
   workflow_dispatch:
   schedule:
-  - cron: '0 1 1,15 * *'
-
+    - cron: 0 1 1,15 * *
 jobs:
   stale:
-
     runs-on: ubuntu-latest
     permissions:
       issues: write
-      
-
     steps:
-    - uses: actions/stale@v5
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        days-before-issue-stale: 30
-        close-issue-message: >
-          We are closing this as there was no activity in this issue for last 90 days. Please reopen if you’d like to discuss anything further.
-        only-labels: 'obsolete'
-        exempt-issue-labels: awaiting-maintainer
-        ascending: true
-        days-before-close: 0
-        close-issue-reason: "not_planned"
-        stale-issue-label: 'wontfix'
-        enable-statistics: true
+      - uses: actions/stale@v5
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-issue-stale: 30
+          close-issue-message: >
+            We are closing this as there was no activity in this issue for last 90
+            days. Please reopen if you’d like to discuss anything further.
+          only-labels: obsolete
+          exempt-issue-labels: awaiting-maintainer
+          ascending: true
+          days-before-close: 0
+          close-issue-reason: not_planned
+          stale-issue-label: wontfix
+          enable-statistics: true

.github/workflows/label-pr.yml

@@ -1,3 +1,4 @@
+---
 # Copyright 2023 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,12 +15,8 @@
 #
 # This workflow utilizes https://github.com/actions/github-script in GitHub Actions to apply labels to pull requests.
 #
-
 name: Label PR
-
-on:
-  - pull_request_target
-
+on: [pull_request_target]
 jobs:
   label:
     runs-on: ubuntu-latest
@@ -30,7 +27,7 @@ jobs:
       - name: Label PR
         uses: actions/github-script@v4
         with:
-          script: |
+          script: |-
             const keywords = {
               "breaking": "kind/breaking",
               "bug": "kind/bug",

.github/workflows/obsolete.yaml

@@ -1,3 +1,4 @@
+---
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -16,33 +17,29 @@
 # For more information, see:
 # https://github.com/actions/stale
 name: Mark stale issues obsolete
-
 on:
   schedule:
-  - cron: '0 2 1,15 * *'
+    - cron: 0 2 1,15 * *
   workflow_dispatch:
-        
-
 jobs:
   stale:
-
     runs-on: ubuntu-latest
     permissions:
       issues: write
     name: Track Obsolete Issues
-
     steps:
-    - name: Track stale issues and check if obsolete
-      uses: actions/stale@v5
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        days-before-issue-stale: 30
-        stale-issue-message: >
-          This issue is marked as obsolete due to inactivity for last 60 days. 
-          To avoid issue getting closed in next 30 days, please add a comment or add 'awaiting-maintainer' label. Thank you for your contributions
-        stale-issue-label: 'obsolete'
-        only-labels: 'stale'
-        exempt-issue-labels: awaiting-maintainer
-        remove-stale-when-updated: true
-        ascending: true
-        enable-statistics: true
+      - name: Track stale issues and check if obsolete
+        uses: actions/stale@v5
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-issue-stale: 30
+          stale-issue-message: >
+            This issue is marked as obsolete due to inactivity for last 60 days.  To
+            avoid issue getting closed in next 30 days, please add a comment or add
+            'awaiting-maintainer' label. Thank you for your contributions
+          stale-issue-label: obsolete
+          only-labels: stale
+          exempt-issue-labels: awaiting-maintainer
+          remove-stale-when-updated: true
+          ascending: true
+          enable-statistics: true

.github/workflows/pr_update.yml

@@ -1,3 +1,4 @@
+---
 # Copyright 2023 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,13 +17,10 @@
 # `main`. `update-pr-branch` will pick the oldest PR (by creation date) that is approved
 # with auto-merge enabled and update it to the latest `main`, forming a best-effort queue
 # of approved PRs.
-
 name: PR update
-
 on:
   push:
-    branches:
-      - "main"
+    branches: [main]
 jobs:
   autoupdate:
     runs-on: ubuntu-latest
@@ -31,8 +29,8 @@ jobs:
         uses: adRise/[email protected]
         with:
           token: ${{ secrets.AGONES_BOT }}
-          base: "main"
+          base: main
           required_approval_count: 1
           require_passed_checks: true
-          sort: "created"
-          direction: "asc"
+          sort: created
+          direction: asc

.github/workflows/stale.yaml

@@ -1,3 +1,4 @@
+---
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -15,32 +16,29 @@
 # You can adjust the behavior by modifying this file.
 # For more information, see:
 # https://github.com/actions/stale
-name: Mark stale 
-
+name: Mark stale
 on:
   workflow_dispatch:
   schedule:
-  - cron: '0 10 1,15 * *'
-
+    - cron: 0 10 1,15 * *
 jobs:
   stale:
-
     runs-on: ubuntu-latest
     permissions:
       issues: write
     name: stale issues
-
     steps:
-    - name: Stale issues
-      uses: actions/stale@v5
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        days-before-issue-stale: 30
-        days-before-issue-close: 60
-        stale-issue-message: >
-          'This issue is marked as Stale due to inactivity for more than 30 days. 
-          To avoid being marked as 'stale' please add 'awaiting-maintainer' label or add a comment. Thank you for your contributions '
-        stale-issue-label: 'stale'
-        exempt-issue-labels: 'awaiting-maintainer, obsolete'
-        ascending: true
-        enable-statistics: true
+      - name: Stale issues
+        uses: actions/stale@v5
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-issue-stale: 30
+          days-before-issue-close: 60
+          stale-issue-message: >
+            'This issue is marked as Stale due to inactivity for more than 30 days.  To
+            avoid being marked as 'stale' please add 'awaiting-maintainer' label or
+            add a comment. Thank you for your contributions '
+          stale-issue-label: stale
+          exempt-issue-labels: awaiting-maintainer, obsolete
+          ascending: true
+          enable-statistics: true

.gitignore

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 .*
+!/.yamllint
 !.gitignore
 !.helmignore
 !.gitattributes

.golangci.yml

@@ -1,6 +1,6 @@
+---
 # This file contains all available configuration options
 # with their default values.
-
 # options for analysis running
 run:
   # default concurrency is a available CPU number
@@ -31,9 +31,7 @@ run:
   # no need to include all autogenerated files, we confidently recognize
   # autogenerated files. If it's not please let us know.
   skip-files:
-
   modules-download-mode: vendor
-
 # output configuration options
 output:
   # colored-line-number|line-number|json|tab|checkstyle, default is "colored-line-number"
@@ -44,7 +42,6 @@ output:
 
   # print linter name in the end of issue text, default is true
   print-linter-name: true
-
 linters:
   enable:
     - bodyclose
@@ -62,7 +59,6 @@ linters:
     - staticcheck
     - unconvert
     - unparam
-
 linters-settings:
   govet:
     disable-all: false
@@ -71,32 +67,24 @@ linters-settings:
       # extremely noisy, also against common Go style in most cases
       - shadow
   gocritic:
-    enabled-tags:
-      - performance
-      - opinionated
-      - diagnostic
-    disabled-checks:
-      - paramTypeCombine
-      - unnamedResult
-      - unnecessaryDefer
-    settings: # settings passed to gocritic
+    enabled-tags: [performance, opinionated, diagnostic]
+    disabled-checks: [paramTypeCombine, unnamedResult, unnecessaryDefer]
+    settings:  # settings passed to gocritic
       hugeParam:
         sizeThreshold: 512
       rangeValCopy:
         sizeThreshold: 512
         skipTestFuncs: true
-
 issues:
   # This turns off the default excludes - which was causing the linter
   # to miss things like erroneous comments
   exclude-use-default: false
-  exclude:
-    - Using the variable on range scope .* in function literal
+  exclude: [Using the variable on range scope .* in function literal]
   exclude-rules:
     # Skip fieldalignment checks on:
     # - tests: memory footprint doesn't matter
     # - cmd/: we assume these are one-off config entries
     # - pkg/apis: Keep strong convention on TypeMeta/ObjectMeta/Spec/Status
-    - path: '(.+)_test\.go|^test/|^cmd/.*|^pkg/apis/.*'
+    - path: (.+)_test\.go|^test/|^cmd/.*|^pkg/apis/.*
       # fieldalignment is in the `govet` linter, so exclude based on text instead of all of govet
       text: '^fieldalignment: .*'

.yamllint

@@ -0,0 +1,18 @@
+---
+extends: default
+
+rules:
+  truthy: disable
+  line-length:
+    max: 1500
+
+ignore:
+  - /build/.gomod/
+  - /install/
+  - /sdks/
+  - /test/sdk/
+  - /test/terraform/vendor/
+  - /site/node_modules/
+  - /site/themes/docsy/
+  - /site/vendor/
+  - /vendor/

build/Makefile

@@ -484,12 +484,14 @@ build-extensions-binary-linux-arm64: $(ensure-build-image)
 	-tags $(GO_BUILD_TAGS) -o $(go_build_base_path)/cmd/extensions/bin/extensions.linux.arm64 \
 	$(go_rebuild_flags) $(go_version_flags) -installsuffix cgo $(agones_package)/cmd/extensions
 
-# Lint the go source code.
+# Lint the go source code and yaml files.
 # use LINT_TIMEOUT to manipulate the linter timeout
 lint: LINT_TIMEOUT ?= 15m
 lint: $(ensure-build-image)
 	docker run -t -e "TERM=xterm-256color" -e "$(gomod_on)" --rm $(common_mounts) -w $(workdir_path) $(DOCKER_RUN_ARGS) $(build_tag) bash -c \
-		"golangci-lint run ./examples/... && golangci-lint run --timeout $(LINT_TIMEOUT) ./..."
+		"golangci-lint run ./examples/... && \
+		golangci-lint run --timeout $(LINT_TIMEOUT) ./... && \
+		yamllint ."
 
 # Extract licenses from source tree
 build-licenses: