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[helm-chart] Using “toYaml” to design helm-chart – Kubernetes

Posted on January 20, 2022January 20, 2022 By nim No Comments on [helm-chart] Using “toYaml” to design helm-chart – Kubernetes

chúng ta có values.yaml

ingress:
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/backend-protocol: "GRPC"

template như sau:

kind: Ingress
{{ template "common.metadata" . }}
    {{- if .Values.istio.enabled }}
    istio-nosync: "true"
    {{- end }}
  annotations:
{{ toYaml .Values.ingress.annotations | indent 4 }}

{{ toYaml .Values.ingress.annotations | indent 4 }}
nghĩ là nó lấy toàn bộ data phía sau của ingress -> annotations, rồi đặt vào chỗ toYaml đã lùi 4 space

Nhìn hình là hiểu liền

Mình còn 1 sỗ ví dụ về toYaml
https://github.com/vmware-tanzu/helm-charts/blob/main/charts/velero/templates/deployment.yaml#L9-L12

  {{- with .Values.annotations }}
  annotations:
    {{- toYaml . | nindent 4 }}
  {{- end }}
Helm Chart

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