Mike Farah’s yq yaml processor has a a rich set of operators and functions for advanced usage. In this article, I will illustrate how to update deeply nested elements in yaml. This can be done for both known paths as well as arbitrarily deep paths. Sample yaml We will use the following yaml files to … yq: updating deeply nested elements
Mike Farah’s yq yaml processor has a a full-featured validation command that is very detailed in its reporting, but the yaml specification itself is very lenient, which means yq may accept scenarios you did not expect (e.g. an empty file). yq -v file.yaml >/dev/null ; echo “final result = $?” Luckily, the yq tips-and-tricks section … yq: validate yaml syntax
If you have a Kubernetes yaml manifest that contains multiple documents, targeting a single document for modification while still outputting the other documents untouched can be a challenge. As an example, consider the simple example below were you have a single yaml file that contains: a Namespace, Deployment, and DaemonSet. And we want to add … Kubernetes: targeting the addition of array items to a multi-document yaml manifest
The ‘export’ flag in kubectl was deprecated in 1.18, but you still need a way to dump the yaml of Kubernetes objects, often for the purpose of reapplying changes. The problem with doing a simple ‘get’ using a yaml output like below is that additional internal accounting attributes like ‘selfLink’, ‘creationTimestamp’, ‘uid’, will be present … Kubernetes: alternative to export for removing internal fields from yaml
Most of the modern cloud platforms and utilities have us manipulate either JSON or YAML configuration files. And when you start dealing with real world scenarios with hundreds of lines of embedded data structures it is too difficult and error-prone to manually inspect indentation levels to determine the exact dotted or json path to an … Python: converting JSON to dot notation for easier path determination
If you are using vim on a constrained system (container or production system), you may not have the ability to setup vim plugin managers and plugins to mimic a full development environment. However, with a few basic settings in ‘~/.vimrc’, you can get a reasonable rendering that will assist in troubleshooting. ” find list using: … Bash: minimal .vimrc settings for python and yaml editing
YAML is a popular syntax for configuration, and it is common to have certificate definitions embedded in these files. But since the cert is typically Base64 PEM encoded, it means you can’t easily view its attributes (subject, expiration date, etc) and so you are left with the manual task of copy-pasting it out, saving as … Bash: Examining each certificate in a yaml file using sed and openssl