How to remove an item of an array

[Evantage-WS]

Hi,

Just (hopefully a simple) question:

Is yq capable of removing the ".options.k3s.extraArgs" and then the - arg: with the value "-- flannel-backend=none' completely?

apiVersion: k3d.io/v1alpha4
kind: Simple
...
...
options:
  k3d:
    wait: true
  k3s:
    extraArgs:
      - arg: --flannel-backend=none
        nodeFilters:
          - server:*
      - arg: --no-deploy=traefik
        nodeFilters:
          - server:*
  kubeconfig:
    updateDefaultKubeconfig: true
    switchCurrentContext: true

Thanks!

[mikefarah]

Yep:

yq 'del(.options.k3s.extraArgs[] | select(.arg == "--flannel-backend=none"))' file.yaml

Explanation:

• .options.k3s.extraArgs[] will match every item under extraArgs
• select(.arg == "--flannel-backend=none") filters the items to only include the ones that have the matching arg value
• wrap the whole thing in del to delete those matching items

[mikefarah]

Forgot to include the output:

apiVersion: k3d.io/v1alpha4
kind: Simple
options:
  k3d:
    wait: true
  k3s:
    extraArgs:
      - arg: --no-deploy=traefik
        nodeFilters:
          - server:*
  kubeconfig:
    updateDefaultKubeconfig: true
    switchCurrentContext: true

[Evantage-WS]

This is working! Thanks!