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Ashima Agarwal

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  1. Have your private key and certificate in the PEM format (e.g. openssl req -newkey rsa:2048 -nodes -keyout key.pem -x509 -days 365 -out certificate.pem) and create a file called custom_cert.yaml anywhere inside the cluster with the following content:

    Code Block
    apiVersion: v1
kind: Secret
metadata:
  name: custom-default-cert
  namespace: kube-system
type: kubernetes.io/tls
data:
  tls.crt: $CERTIFICATE_BASE64
  tls.key: $PRIVATE_KEY_BASE64
---
apiVersion: traefik.containo.us/v1alpha1
kind: TLSStore
metadata:
  name: default
  namespace: kube-system
spec:
  defaultCertificate:
    secretName: custom-default-cert

    1. Replace $CERTIFICATE_BASE64 with the base64 encoded content of your certificate (e.g. cat certificate.pem | base64)

    2. Replace $PRIVATE_KEY_BASE64 with the base64 encoded content of your private key (e.g. cat key.pem | base64)

  2. Run kubectl apply -f custom_cert.yaml

Sources:

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