Configuring an HTTPS Certificate for a LoadBalancer Ingress

1. Log in to the CCE console and click the cluster name to access the cluster console.
2. Choose Services & Ingresses in the navigation pane, click the Ingresses tab, and click Create Ingress in the upper right corner.
3. Configure ingress parameters.
   

   This example explains only key parameters for configuring HTTPS certificates. You can configure other parameters as required. For details, see Creating a LoadBalancer Ingress on the Console.

   Table 1 Key parameters

   Parameter	Description	Example
   Name	Enter an ingress name.	ingress-test
   Load Balancer	Select a load balancer to be associated with the ingress or automatically create a load balancer.	Shared
   Listener	External Protocol: Select HTTPS when configuring a certificate for an ingress. External Port: specifies the port of the load balancer listener. The default HTTPS port is 443. Certificate Source: Select TLS secret. Server Certificate: kubernetes.io/tls and IngressTLS are supported. If no certificate is available, you can create a TLS certificate. For details about the configuration parameters, see Creating a Secret.	External Protocol: HTTPS External Port: 443 Certificate Source: TLS secret Server Certificate: test
   Forwarding Policy	Domain Name: Enter an actual domain name to be accessed. If it is left blank, the ingress can be accessed through the IP address. Ensure that the domain name has been registered and licensed. Once a forwarding policy is configured with a domain name specified, you must use the domain name for access. Path Matching Rule: Select Prefix match, Exact match, or RegEx match. Path: Enter the path provided by a backend application for external access. The path added must be valid in the backend application, or the forwarding cannot take effect. Destination Service: Select an existing Service or create a Service. Any Services that do not match the search criteria will be filtered out automatically. Destination Service Port: Select the access port of the destination Service.	Domain Name: You do not need to configure this parameter. Path Matching Rule: Prefix match Path: / Destination Service: nginx Destination Service Port: 80

   Figure 1 Selecting a TLS certificate
   

4. Click OK.

1. Use kubectl to access the cluster. For details, see Connecting to a Cluster Using kubectl.
2. Ingress supports two TLS secret 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 secrets.

   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

   

   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 has been created:

   secret/ingress-test-secret created

4. Check 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

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

   vi ingress-test.yaml

   

   Default security policy (kubernetes.io/elb.tls-ciphers-policy) is supported only in clusters of v1.17.17 or later.

   Custom security policy (kubernetes.io/elb.security_policy_id) is supported only in clusters of v1.17.17 or later.

   An example YAML file of an ingress associated with an automatically created load balancer is as follows:

   For clusters of v1.21 or earlier:

   apiVersion: networking.k8s.io/v1beta1
   kind: Ingress 
   metadata: 
     name: ingress-test
     annotations: 
       kubernetes.io/elb.class: performance
       kubernetes.io/ingress.class: cce
       kubernetes.io/elb.port: '443'
       kubernetes.io/elb.autocreate: 
         '{
             "type": "public",
             "bandwidth_name": "cce-bandwidth-******",
             "bandwidth_chargemode": "bandwidth",
             "bandwidth_size": 5,
             "bandwidth_sharetype": "PER",
             "eip_type": "5_bgp",
             "available_zone": [
                 "ap-southeast-1a"
             ],
             "elb_virsubnet_ids":["b4bf8152-6c36-4c3b-9f74-2229f8e640c9"],
             "l7_flavor_name": "L7_flavor.elb.s1.small"
          }'
       kubernetes.io/elb.security_policy_id: 99bec42b-0dd4-4583-98e9-b05ce628d157  # The priority of the custom security policy is higher than that of the default security policy.
       kubernetes.io/elb.tls-ciphers-policy: tls-1-2
   spec:
     tls: 
     - secretName: ingress-test-secret
     rules: 
     - host: ''
       http: 
         paths: 
         - path: '/'
           backend: 
             serviceName: <your_service_name>  # Replace it with the name of your target Service.
             servicePort: 80
           property:
             ingress.beta.kubernetes.io/url-match-mode: STARTS_WITH

   For clusters of v1.23 or later:

   apiVersion: networking.k8s.io/v1
   kind: Ingress 
   metadata: 
     name: ingress-test
     annotations: 
       kubernetes.io/elb.class: performance
       kubernetes.io/elb.port: '443'
       kubernetes.io/elb.autocreate: 
         '{
             "type": "public",
             "bandwidth_name": "cce-bandwidth-******",
             "bandwidth_chargemode": "bandwidth",
             "bandwidth_size": 5,
             "bandwidth_sharetype": "PER",
             "eip_type": "5_bgp",
             "available_zone": [
                 "ap-southeast-1a"
             ],
             "elb_virsubnet_ids":["b4bf8152-6c36-4c3b-9f74-2229f8e640c9"],
             "l7_flavor_name": "L7_flavor.elb.s1.small"
          }'
       kubernetes.io/elb.security_policy_id: 99bec42b-0dd4-4583-98e9-b05ce628d157  # The priority of the custom security policy is higher than that of the default security policy.
       kubernetes.io/elb.tls-ciphers-policy: tls-1-2
   spec:
     tls: 
     - secretName: ingress-test-secret
     rules: 
     - host: ''
       http: 
         paths: 
         - path: '/'
           backend: 
             service:
               name: <your_service_name>  # Replace it with the name of your target Service.
               port: 
                 number: 80             # Replace 80 with the port number of your target Service.
           property:
             ingress.beta.kubernetes.io/url-match-mode: STARTS_WITH
           pathType: ImplementationSpecific
     ingressClassName: cce 

   Table 2 Key parameters

   Parameter	Mandatory	Type	Description
   kubernetes.io/elb.security_policy_id	No	String	The ID of the custom security group policy in ELB. Obtain it on the ELB console. This field takes effect only when HTTPS is used and has a higher priority than the default security policy. For details about how to create and update a custom security policy, see TLS Security Policy.
   kubernetes.io/elb.tls-ciphers-policy	No	String	The default value is tls-1-2, which is the default security policy used by the listener and takes effect only when HTTPS is used. Options: tls-1-0 tls-1-1 tls-1-2 tls-1-2-strict For details of cipher suites for each security policy, see Table 3.
   tls	No	Array of strings	When HTTPS is used, this parameter must be added to specify the secret certificate. Multiple independent domain names and certificates can be added. For details, see Configuring SNI for a LoadBalancer Ingress.
   secretName	No	String	This parameter is mandatory if HTTPS is used. Set this parameter to the name of the created secret.

   Table 3 tls_ciphers_policy parameter description

   Security Policy	TLS Version	Cipher Suite
   tls-1-0	TLS 1.2 TLS 1.1 TLS 1.0	ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:AES128-SHA256:AES256-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-SHA:AES256-SHA
   tls-1-1	TLS 1.2 TLS 1.1
   tls-1-2	TLS 1.2
   tls-1-2-strict	TLS 1.2	ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:AES128-SHA256:AES256-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384

6. 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

7. Check the created ingress.

   kubectl get ingress

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

   NAME          CLASS    HOSTS     ADDRESS          PORTS   AGE
   ingress-test  cce      *         121.**.**.**     80,443  10s

8. 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.

1. Log in to the CCE console and click the cluster name to access the cluster console.
2. Choose Services & Ingresses in the navigation pane, click the Ingresses tab, and click Create Ingress in the upper right corner.
3. Configure ingress parameters.
   

   This example explains only key parameters for configuring HTTPS certificates. You can configure other parameters as required. For details, see Creating a LoadBalancer Ingress on the Console.

   Table 4 Key parameters

   Parameter	Description	Example
   Name	Enter an ingress name.	ingress-test
   Load Balancer	Select a load balancer to be associated with the ingress or automatically create a load balancer.	Shared
   Listener	External Protocol: Select HTTPS. External Port: specifies the port of the load balancer listener. The default HTTPS port is 443. Certificate Source: Select ELB server certificate. Server Certificate: Use a certificate created on ELB. If no certificate is available, go to the ELB console and create one. For details, see Adding a Certificate.	External Protocol: HTTPS External Port: 443 Certificate Source: ELB server certificate Server Certificate: cert-test
   Forwarding Policy	Domain Name: Enter an actual domain name to be accessed. If it is left blank, the ingress can be accessed through the IP address. Ensure that the domain name has been registered and licensed. Once a forwarding policy is configured with a domain name specified, you must use the domain name for access. Path Matching Rule: Select Prefix match, Exact match, or RegEx match. Path: Enter the path provided by a backend application for external access. The path added must be valid in the backend application, or the forwarding cannot take effect. Destination Service: Select an existing Service or create a Service. Any Services that do not match the search criteria will be filtered out automatically. Destination Service Port: Select the access port of the destination Service.	Domain Name: You do not need to configure this parameter. Path Matching Rule: Prefix match Path: / Destination Service: nginx Destination Service Port: 80

   Figure 2 Selecting a certificate from the ELB service
   

4. Click OK.

To use an ELB certificate, you can specify the kubernetes.io/elb.tls-certificate-ids annotation.

1. Use kubectl to access the cluster. For details, see Connecting to a Cluster Using kubectl.
2. Create a YAML file named ingress-test.yaml. The file name can be customized.

   vi ingress-test.yaml

   An example YAML file of an ingress associated with an existing load balancer is as follows:

   For clusters of v1.21 or earlier:

   apiVersion: networking.k8s.io/v1beta1
   kind: Ingress 
   metadata: 
     name: ingress-test
     annotations: 
       kubernetes.io/ingress.class: cce
       kubernetes.io/elb.port: '443'
       kubernetes.io/elb.id: 0b9a6c4d-bd8b-45cc-bfc8-ff0f9da54e95
       kubernetes.io/elb.class: union
       kubernetes.io/elb.tls-certificate-ids: 058cc023690d48a3867ad69dbe9cd6e5,b98382b1f01c473286653afd1ed9ab63
   spec:
     rules: 
     - host: ''
       http: 
         paths: 
         - path: '/'
           backend: 
             serviceName: <your_service_name>  # Replace it with the name of your target Service.
             servicePort: 80
           property:
             ingress.beta.kubernetes.io/url-match-mode: STARTS_WITH

   For clusters of v1.23 or later:

   apiVersion: networking.k8s.io/v1
   kind: Ingress
   metadata:
     name: ingress-test
     namespace: default
     annotations:
       kubernetes.io/elb.port: '443'
       kubernetes.io/elb.id: 0b9a6c4d-bd8b-45cc-bfc8-ff0f9da54e95
       kubernetes.io/elb.class: union
       kubernetes.io/elb.tls-certificate-ids: 058cc023690d48a3867ad69dbe9cd6e5,b98382b1f01c473286653afd1ed9ab63
   spec:
     rules:
       - host: ''
         http:
           paths:
             - path: '/'
               backend:
                 service:
                   name: <your_service_name>  # Replace it with the name of your target Service.
                   port: 
                     number: 80             # Replace 80 with the port number of your target Service.
               property:
                 ingress.beta.kubernetes.io/url-match-mode: STARTS_WITH
               pathType: ImplementationSpecific
     ingressClassName: cce

   Table 5 Key parameters

   Parameter	Type	Description
   kubernetes.io/elb.tls-certificate-ids	String	ELB certificate IDs, which are separated by comma (,). The list length is greater than or equal to 1. The first ID in the list is the server certificate, and the other IDs are SNI certificates in which a domain name must be contained. If an SNI certificate cannot be found based on the domain name requested by the client, the server certificate will be returned by default. To obtain the certificate, log in to the CCE console, choose Service List > Networking > Elastic Load Balance, and click Certificates in the navigation pane. In the load balancer list, copy the ID under the target certificate name.

3. 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

4. Check the created ingress.

   kubectl get ingress

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

   NAME          CLASS    HOSTS     ADDRESS          PORTS   AGE
   ingress-test  cce      *         121.**.**.**     80,443  10s