Adding a new list

[eveardown]

Hi,

I have this YAML in new.yaml:

kind: Template
apiVersion: template.openshift.io/v1
metadata:
  name: project-request
  creationTimestamp: null
objects:
  - kind: Project
    apiVersion: project.openshift.io/v1
    metadata:
      name: ${PROJECT_NAME}
      creationTimestamp: null
      annotations:
        openshift.io/description: ${PROJECT_DESCRIPTION}
        openshift.io/display-name: ${PROJECT_DISPLAYNAME}
        openshift.io/requester: ${PROJECT_REQUESTING_USER}
    spec: {}
    status: {}
  - kind: RoleBinding
    apiVersion: rbac.authorization.k8s.io/v1
    metadata:
      name: admin
      namespace: ${PROJECT_NAME}
      creationTimestamp: null
    subjects:
      - kind: User
        apiGroup: rbac.authorization.k8s.io
        name: ${PROJECT_ADMIN_USER}
    roleRef:
      apiGroup: rbac.authorization.k8s.io
      kind: ClusterRole
      name: admin
parameters:
  - name: PROJECT_NAME
  - name: PROJECT_DISPLAYNAME
  - name: PROJECT_DESCRIPTION
  - name: PROJECT_ADMIN_USER
  - name: PROJECT_REQUESTING_USER

I'd like to insert this YAML

      labels:
        - label: ${PROJECT_NAME}

Immediately before the spec in the Project object.

I can do this with the following yq query:

yq --prettyPrint -i '.objects.0.metadata.labels[0] = {"label": "${PROJECT_NAME}"}' new.yaml

My question is can I do this, not using an index on objects, but the value of the object.kind field instead? If so, how?

I'm using yq (https://github.com/mikefarah/yq/) version v4.34.1 on Red Hat Enterprise Linux version 9.2

Many thanks,
Steve Brown

[mikefarah]

Sure - TLDR:

yq '(.objects[] | select(.kind == "Project") | .metadata.labels[0]) = {"label": "${PROJECT_NAME}"}' new.yaml

Explanation:

• splat the objects array to match all its children .objects[]
• filter the children, select the ones where kind == "Project" select(.kind == "Project")
• the rest you had was right - just need brackets around the whole LHS expression

[eveardown]

Many thanks, Mike. That's great! All the best, Steve Brown *Steve Brown* *Architect* *Mobile +44 (0) 7531 129 742* *Email ***@***.*** ***@***.***>**Web: www.estafet.com <http://www.estafet.com/> * *Estafet LimitedRegistered Office: 8 Printworks HouseDunstable RoadRichmondTW9 1RR* *Registered at: Companies House, Cardiff. Company Number: 4444147*

…

On Mon, 5 Jun 2023 at 18:06, Mike Farah ***@***.***> wrote: Sure - TLDR: yq '(.objects[] | select(.kind == "Project") | .metadata.labels[0]) = {"label": "${PROJECT_NAME}"}' new.yaml Explanation: - splat the objects array to match all its children .objects[] - filter the children, select the ones where kind == "Project" select(.kind == "Project") - the rest you had was right - just need brackets around the whole LHS expression — Reply to this email directly, view it on GitHub <#1688 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABCO3QYMIHMHKAXG6MRHY2LXJYGZJANCNFSM6AAAAAAY23KBRE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

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