Merge YAML files

Deep-merge a base YAML with an override file

yq '. *= load("override.yaml")' base.yaml
tool
yq15 commands
tags
yq

More yq commands

  • Multi-document YAML to array
    yq -s '.' multi.yaml | yq -o=json

    Split a multi-document YAML into a JSON array

  • Read a field value
    yq '.spec.replicas' deployment.yaml

    Extract a single field from YAML

  • Set a field value in-place
    yq -i '.spec.replicas = 3' deployment.yaml

    Modify YAML file in-place with yq v4

  • Add array element
    yq -i '.spec.containers[0].env += {"name":"DEBUG","value":"true"}' deployment.yaml

    Append an env var to the first container

  • Delete a key
    yq -i 'del(.metadata.annotations."kubectl.kubernetes.io/last-applied-configuration")' resource.yaml

    Remove a specific annotation from YAML

all 15 yq commands