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This put is causing that entry to appear: <div class="snippet-clipboard-content no

Hi <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="

How do use a map value? about dasel HOT 5 CLOSED

tomwright commented on May 18, 2024

How do use a map value?

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Comments (5)

commented on May 18, 2024 1

Looking great, first test are positive. Thanks!

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TomWright commented on May 18, 2024

This put is causing that entry to appear:

dasel put string -p yaml 'spec.endpointSelector.matchLabels' {}

Dasel doesn't currently support putting empty values.

I would argue that this item should just be omitted since it doesn't contain any values, giving you the following YAML:

kind: CiliumNetworkPolicy
metadata:
  name: allow-kube-dns
spec:
  egress:
  - toEndpoints:
    - matchLabels:
        k8s-app: kube-dns
        k8s:io.kubernetes.pod.namespace: kube-system
    toPorts:
    - ports:
      - port: "53"
        protocol: UDP

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TomWright commented on May 18, 2024

Alternatively you could use dasel put object -p yaml 'spec.endpointSelector.matchLabels'.

You will currently receive an error stating that type is a required flag, but I can remove that requirement.

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commented on May 18, 2024

Hi @TomWright,

Could be great, when possible, to use { } would be great

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TomWright commented on May 18, 2024

No worries, that's now supported as of v1.6.1 🙂

Notice that I used put object with no types/values rather than put string {}:

echo '' | \
    dasel put string -p yaml 'apiVersion' 'cilium.io/v2' | \
    dasel put string -p yaml 'kind' 'CiliumNetworkPolicy' | \
    dasel put string -p yaml 'metadata.name' 'allow-kube-dns' | \
    dasel put object -p yaml 'spec.endpointSelector.matchLabels' | \
    dasel put string -p yaml 'spec.egress.[0].toEndpoints.[0].matchLabels.k8s:io\.kubernetes\.pod\.namespace' 'kube-system' | \
    dasel put string -p yaml 'spec.egress.[0].toEndpoints.[0].matchLabels.k8s-app' 'kube-dns' | \
    dasel put string -p yaml 'spec.egress.[0].toPorts.[0].ports.[0].port' '53' | \
    dasel put string -p yaml 'spec.egress.[0].toPorts.[0].ports.[0].protocol' 'UDP'

apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
  name: allow-kube-dns
spec:
  egress:
  - toEndpoints:
    - matchLabels:
        k8s-app: kube-dns
        k8s:io.kubernetes.pod.namespace: kube-system
    toPorts:
    - ports:
      - port: "53"
        protocol: UDP
  endpointSelector:
    matchLabels: {}

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