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Help Center/ Cloud Container Engine/ User Guide (Paris Regions)/ Network/ Ingresses/ Nginx Ingresses/ Configuring HTTPS Certificates for Nginx Ingresses

Configuring HTTPS Certificates for Nginx Ingresses

Updated on 2024-01-26 GMT+08:00

HTTPS certificates can be configured for ingress to provide security services.

  1. Use kubectl to connect to the cluster. For details, see Connecting to a Cluster Using kubectl.
  2. Ingress supports two TLS key types: kubernetes.io/tls and IngressTLS. IngressTLS is used as an example. For details, see Creating a Secret. For details about examples of the kubernetes.io/tls secret and its description, see TLS Secret.

    Run the following command to create a YAML file named ingress-test-secret.yaml (the file name can be customized):

    vi ingress-test-secret.yaml

    The YAML file is configured as follows:
    apiVersion: v1
    data:
      tls.crt: LS0******tLS0tCg==
      tls.key: LS0tL******0tLS0K
    kind: Secret
    metadata:
      annotations:
        description: test for ingressTLS secrets
      name: ingress-test-secret
      namespace: default
    type: IngressTLS
    NOTE:

    In the preceding information, tls.crt and tls.key are only examples. Replace them with the actual files. The values of tls.crt and tls.key are Base64-encoded.

  3. Create a secret.

    kubectl create -f ingress-test-secret.yaml

    If information similar to the following is displayed, the secret is being created:

    secret/ingress-test-secret created

    View the created secret.

    kubectl get secrets

    If information similar to the following is displayed, the secret has been created:

    NAME                         TYPE                                  DATA      AGE
    ingress-test-secret          IngressTLS                            2         13s

  4. Create a YAML file named ingress-test.yaml. The file name can be customized.

    vi ingress-test.yaml

    For clusters of v1.23 or later:
    apiVersion: networking.k8s.io/v1
    kind: Ingress 
    metadata: 
      name: ingress-test
      namespace: default
    spec:
      tls: 
      - hosts: 
        - foo.bar.com
        secretName: ingress-test-secret  # Replace it with your TLS key certificate.
      rules:
        - host: foo.bar.com
          http:
            paths:
              - path: /
                backend:
                  service:
                    name: <your_service_name>  # Replace it with the name of your target Service.
                    port:
                      number: <your_service_port>  # Replace it with the port number of your target Service.
                property:
                  ingress.beta.kubernetes.io/url-match-mode: STARTS_WITH
                pathType: ImplementationSpecific
      ingressClassName: nginx
    For clusters of v1.21 or earlier:
    apiVersion: networking.k8s.io/v1beta1
    kind: Ingress 
    metadata: 
      name: ingress-test
      annotations: 
        kubernetes.io/ingress.class: nginx
    spec:
      tls: 
      - hosts: 
        - foo.bar.com
        secretName: ingress-test-secret   # Replace it with your TLS key certificate.
      rules: 
      - host: foo.bar.com
        http: 
          paths: 
          - path: '/'
            backend: 
              serviceName: <your_service_name>  # Replace it with the name of your target Service.
              servicePort: <your_service_port>  # Replace 8080 with the port number of your target Service.
      ingressClassName: nginx

  5. Create an ingress.

    kubectl create -f ingress-test.yaml

    If information similar to the following is displayed, the ingress has been created.

    ingress/ingress-test created

    View the created ingress.

    kubectl get ingress

    If information similar to the following is displayed, the ingress has been created and the workload is accessible.

    NAME             HOSTS     ADDRESS          PORTS   AGE
    ingress-test     *         121.**.**.**     80      10s

  6. Enter https://121.**.**.**:443 in the address box of the browser to access the workload (for example, Nginx workload).

    121.**.**.** indicates the IP address of the unified load balancer.

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