yamllint does not only check for syntax validity, but for weirdnesses like key repetition and cosmetic problems such as lines length, trailing spaces, indentation, etc.
kubeval is a tool for validating a Kubernetes YAML or JSON configuration file. It does so using schemas generated from the Kubernetes OpenAPI specification, and therefore can validate schemas for multiple versions of Kubernetes.
$ ./kubeval pod.yaml WARN - pod.yaml contains an invalid Pod (getting-started) - containers: containers is required $ ./kubeval -h Validate a Kubernetes YAML file against the relevant schema
Usage: kubeval <file> [file...] [flags]
Flags: --additional-schema-locations strings Comma-seperated list of secondary base URLs used to download schemas -d, --directories strings A comma-separated list of directories to recursively search for YAML documents --exit-on-error Immediately stop execution when the first error is encountered -f, --filename string filename to be displayed when testing manifests read from stdin (default "stdin") --force-color Force colored output even if stdout is not a TTY -h, --helphelpfor kubeval --ignore-missing-schemas Skip validation for resource definitions without a schema -i, --ignored-filename-patterns strings A comma-separated list of regular expressions specifying filenames to ignore --insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure -v, --kubernetes-version string Version of Kubernetes to validate against (default "master") --openshift Use OpenShift schemas instead of upstream Kubernetes -o, --output string The format of the output of this script. Options are: [stdout json tap] --quiet Silences any output aside from the direct results --reject-kinds strings Comma-separated list of case-sensitive kinds to prohibit validating against schemas -s, --schema-location string Base URL used to download schemas. Can also be specified with the environment variable KUBEVAL_SCHEMA_LOCATION. --skip-kinds strings Comma-separated list of case-sensitive kinds to skip when validating against schemas --strict Disallow additional properties not in schema --version version for kubeval
$ ./kubeval --strict pod.yaml WARN - pod.yaml contains an invalid Pod (getting-started) - containers: containers is required WARN - pod.yaml contains an invalid Pod (getting-started) - voa: Additional property voa is not allowed
Conftest is a utility to help you write tests against structured configuration data. For instance you could write tests for your Kubernetes configurations, or Tekton pipeline definitions, Terraform code, Serverless configs or any other structured data.
$ echo"{}" >> templates/deployment.yaml [email protected]:~/nginx$ helm lint ==> Linting . [INFO] Chart.yaml: icon is recommended [ERROR] templates/deployment.yaml: unable to parse YAML: error converting YAML to JSON: yaml: line 45: did not find expected key [ERROR] templates/deployment.yaml: object name does not conform to Kubernetes naming requirements: ""
