ci: test workflow

.github/workflows/test.yaml

@@ -0,0 +1,23 @@
+name: test
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches: ["*"]
+    tags-ignore: ["*"]
+
+jobs:
+  manifests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup yq
+        uses: fluxcd/pkg/actions/yq@main
+      - name: Setup kubeconform
+        uses: fluxcd/pkg/actions/kubeconform@main
+      - name: Setup kustomize
+        uses: fluxcd/pkg/actions/kustomize@main
+      - name: Validate manifests
+        run: ./scripts/validate.sh

scripts/validate.sh

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+#!/usr/bin/env sh
+
+# This script downloads the Flux OpenAPI schemas, then it validates the
+# Flux custom resources and the kustomize overlays using kubeconform.
+# This script is meant to be run locally and in CI before the changes
+# are merged on the main branch that's synced by Flux.
+
+# Copyright 2023 The Flux authors. All rights reserved.
+#
+# 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
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+
+# Prerequisites
+# - yq v4.34
+# - kustomize v5.3
+# - kubeconform v0.6
+
+set -o errexit
+set -o pipefail
+
+# mirror kustomize-controller build options
+kustomize_flags=("--load-restrictor=LoadRestrictionsNone")
+kustomize_config="kustomization.yaml"
+
+# skip Kubernetes Secrets due to SOPS fields failing validation
+kubeconform_flags=("-skip=Secret")
+kubeconform_config=("-strict" "-ignore-missing-schemas" "-schema-location" "default" "-schema-location" "/tmp/flux-crd-schemas" "-verbose")
+
+echo "INFO - Downloading Flux OpenAPI schemas"
+mkdir -p /tmp/flux-crd-schemas/master-standalone-strict
+curl -sL https://github.com/fluxcd/flux2/releases/latest/download/crd-schemas.tar.gz | tar zxf - -C /tmp/flux-crd-schemas/master-standalone-strict
+
+find . -type f -name '*.yaml' -print0 | while IFS= read -r -d $'\0' file;
+  do
+    echo "INFO - Validating $file"
+    yq e 'true' "$file" > /dev/null
+done
+
+echo "INFO - Validating clusters"
+find ./clusters -maxdepth 2 -type f -name '*.yaml' -print0 | while IFS= read -r -d $'\0' file;
+  do
+    kubeconform "${kubeconform_flags[@]}" "${kubeconform_config[@]}" "${file}"
+    if [[ ${PIPESTATUS[0]} != 0 ]]; then
+      exit 1
+    fi
+done
+
+echo "INFO - Validating kustomize overlays"
+find . -type f -name $kustomize_config -print0 | while IFS= read -r -d $'\0' file;
+  do
+    echo "INFO - Validating kustomization ${file/%$kustomize_config}"
+    kustomize build "${file/%$kustomize_config}" "${kustomize_flags[@]}" | \
+      kubeconform "${kubeconform_flags[@]}" "${kubeconform_config[@]}"
+    if [[ ${PIPESTATUS[0]} != 0 ]]; then
+      exit 1
+    fi
+done