chore: enable yamllint check

.github/workflows/commit.yaml

@@ -109,10 +109,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - name: v1.33.0
-          envoy_version: envoyproxy/envoy:v1.33.0
-        - name: latest
-          envoy_version: envoyproxy/envoy-dev:latest
+          - name: v1.33.0
+            envoy_version: envoyproxy/envoy:v1.33.0
+          - name: latest
+            envoy_version: envoyproxy/envoy-dev:latest
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -156,10 +156,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - name: v1.2.5
-          envoy_gateway_version: v1.2.5
-        - name: latest
-          envoy_gateway_version: v0.0.0-latest
+          - name: v1.2.5
+            envoy_gateway_version: v1.2.5
+          - name: latest
+            envoy_gateway_version: v0.0.0-latest
     steps:
       - uses: actions/checkout@v4
         if: github.event_name != 'pull_request_target'

.github/workflows/docker_builds_template.yaml

@@ -30,11 +30,11 @@ jobs:
       - uses: docker/setup-buildx-action@v3
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@49b3bc8e6bdd4a60e6116a5414239cba5943d3cf # v3.2.0
+        uses: docker/setup-qemu-action@49b3bc8e6bdd4a60e6116a5414239cba5943d3cf  # v3.2.0
 
       - name: Set up Docker buildx
         id: buildx
-        uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db # v3.6.1
+        uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db  # v3.6.1
 
       - name: Login into GitHub Container Registry
         uses: docker/login-action@v3

.yamllint

@@ -0,0 +1,53 @@
+---
+
+ignore: |
+  manifests/charts/ai-gateway-helm
+
+rules:
+  braces:
+    min-spaces-inside: 0
+    max-spaces-inside: 0
+    min-spaces-inside-empty: -1
+    max-spaces-inside-empty: -1
+  brackets:
+    min-spaces-inside: 0
+    max-spaces-inside: 1
+    min-spaces-inside-empty: -1
+    max-spaces-inside-empty: -1
+  colons:
+    max-spaces-before: 0
+    max-spaces-after: 1
+  commas:
+    max-spaces-before: 1
+    min-spaces-after: 1
+    max-spaces-after: 1
+  comments:
+    level: error
+    require-starting-space: true
+    min-spaces-from-content: 2
+  comments-indentation:
+    level: warning
+  document-end: disable
+  document-start: disable
+  empty-lines:
+    max: 2
+    max-start: 0
+    max-end: 1
+  empty-values:
+    forbid-in-block-mappings: false
+    forbid-in-flow-mappings: true
+  hyphens:
+    max-spaces-after: 1
+  indentation:
+    spaces: 2
+    indent-sequences: consistent  # be consistent: don't mix indentation styles in one file.
+    check-multi-line-strings: false
+  key-duplicates: enable
+  key-ordering: disable
+  new-line-at-end-of-file: enable
+  new-lines:
+    type: unix
+  trailing-spaces: enable
+  truthy:
+    check-keys: false   # GitHub Actions uses "on:" as a key
+    level: warning

Makefile

@@ -54,6 +54,11 @@ codespell: $(CODESPELL)
 	@echo "spell => ./..."
 	@$(CODESPELL) --skip $(CODESPELL_SKIP) --ignore-words $(CODESPELL_IGNORE_WORDS)
 
+.PHONY: yamllint
+yamllint: $(YAMLLINT)
+	@echo "yamllint => ./..."
+	@$(YAMLLINT) --config-file=.yamllint $$(git ls-files :*.yml :*.yaml | xargs -L1 dirname | sort -u)
+
 # This runs the formatter on the codebase as well as goimports via gci.
 .PHONY: format
 format: gci gofumpt
@@ -79,7 +84,7 @@ apigen: controller-gen
 
 # This runs all necessary steps to prepare for a commit.
 .PHONY: precommit
-precommit: tidy codespell apigen format lint editorconfig helm-lint
+precommit: tidy codespell apigen format lint editorconfig yamllint helm-lint
 
 # This runs precommit and checks for any differences in the codebase, failing if there are any.
 .PHONY: check

Makefile.tools.mk

@@ -10,6 +10,7 @@ GO_FUMPT = $(LOCALBIN)/gofumpt
 GCI = $(LOCALBIN)/gci
 EDITORCONFIG_CHECKER = $(LOCALBIN)/editorconfig-checker
 CODESPELL = $(LOCALBIN)/.venv/[email protected]/bin/codespell
+YAMLLINT = $(LOCALBIN)/.venv/[email protected]/bin/yamllint
 KIND ?= $(LOCALBIN)/kind
 
 ## Tool versions.
@@ -63,6 +64,8 @@ $(KIND): $(LOCALBIN)
 
 $(CODESPELL): .bin/.venv/[email protected]
 
+$(YAMLLINT): .bin/.venv/[email protected]
+
 # go-install-tool will 'go install' any package with custom target and name of binary, if it doesn't exist
 # $1 - target path with name of binary
 # $2 - package url which can be installed

tests/cel-validation/testdata/aigatewayroutes/basic.yaml

@@ -12,10 +12,10 @@ spec:
       group: gateway.networking.k8s.io
   rules:
     - matches:
-      - headers:
-        - type: Exact
-          name: x-envoy-ai-gateway-model
-          value: llama3-70b
+        - headers:
+            - type: Exact
+              name: x-envoy-ai-gateway-model
+              value: llama3-70b
       backendRefs:
         - name: kserve
           weight: 20

tests/cel-validation/testdata/aigatewayroutes/no_target_refs.yaml

@@ -9,10 +9,10 @@ spec:
     name: OpenAI
   rules:
     - matches:
-      - headers:
-        - type: Exact
-          name: x-envoy-ai-gateway-model
-          value: llama3-70b
+        - headers:
+            - type: Exact
+              name: x-envoy-ai-gateway-model
+              value: llama3-70b
       backendRefs:
         - name: kserve
           weight: 20

tests/cel-validation/testdata/aigatewayroutes/non_openai_schema.yaml

@@ -13,10 +13,10 @@ spec:
       group: gateway.networking.k8s.io
   rules:
     - matches:
-      - headers:
-        - type: Exact
-          name: x-envoy-ai-gateway-model
-          value: llama3-70b
+        - headers:
+            - type: Exact
+              name: x-envoy-ai-gateway-model
+              value: llama3-70b
       backendRefs:
         - name: kserve
           weight: 20

tests/cel-validation/testdata/aigatewayroutes/unknown_schema.yaml

@@ -13,10 +13,10 @@ spec:
       group: gateway.networking.k8s.io
   rules:
     - matches:
-      - headers:
-        - type: Exact
-          name: x-envoy-ai-gateway-model
-          value: llama3-70b
+        - headers:
+            - type: Exact
+              name: x-envoy-ai-gateway-model
+              value: llama3-70b
       backendRefs:
         - name: kserve
           weight: 20

tests/cel-validation/testdata/aigatewayroutes/unsupported_match.yaml

@@ -12,10 +12,10 @@ spec:
       group: gateway.networking.k8s.io
   rules:
     - matches:
-      - headers:
-        - type: RegularExpression
-          name: x-envoy-ai-gateway-model
-          value: llama3-70b
+        - headers:
+            - type: RegularExpression
+              name: x-envoy-ai-gateway-model
+              value: llama3-70b
       backendRefs:
         - name: kserve
           weight: 20