Chapter 2. Installer-provisioned infrastructure

Procedure

1. Edit your install-config.yaml file and add the proxy settings. For example:

   apiVersion: v1
   baseDomain: my.domain.com
   proxy:
     httpProxy: http://<username>:<pswd>@<ip>:<port> 1
     httpsProxy: https://<username>:<pswd>@<ip>:<port> 2
     noProxy: example.com 3
   additionalTrustBundle: | 4
       -----BEGIN CERTIFICATE-----
       <MY_TRUSTED_CA_CERT>
       -----END CERTIFICATE-----
   additionalTrustBundlePolicy: <policy_to_add_additionalTrustBundle> 5

   1

   A proxy URL to use for creating HTTP connections outside the cluster. The URL scheme must be http.

   2

   A proxy URL to use for creating HTTPS connections outside the cluster.

   3

   A comma-separated list of destination domain names, IP addresses, or other network CIDRs to exclude from proxying. Preface a domain with . to match subdomains only. For example, .y.com matches x.y.com, but not y.com. Use * to bypass the proxy for all destinations. You must include vCenter’s IP address and the IP range that you use for its machines.

   4

   If provided, the installation program generates a config map that is named user-ca-bundle in the openshift-config namespace that contains one or more additional CA certificates that are required for proxying HTTPS connections. The Cluster Network Operator then creates a trusted-ca-bundle config map that merges these contents with the Red Hat Enterprise Linux CoreOS (RHCOS) trust bundle, and this config map is referenced in the trustedCA field of the Proxy object. The additionalTrustBundle field is required unless the proxy’s identity certificate is signed by an authority from the RHCOS trust bundle.

   5

   Optional: The policy to determine the configuration of the Proxy object to reference the user-ca-bundle config map in the trustedCA field. The allowed values are Proxyonly and Always. Use Proxyonly to reference the user-ca-bundle config map only when http/https proxy is configured. Use Always to always reference the user-ca-bundle config map. The default value is Proxyonly.

   Note

   The installation program does not support the proxy readinessEndpoints field.

   Note

   If the installer times out, restart and then complete the deployment by using the wait-for command of the installer. For example:

   $ ./openshift-install wait-for install-complete --log-level debug

2. Save the file and reference it when installing OpenShift Container Platform.

Procedure

1. Enter the following govc command-line tool commands to create the openshift-region and openshift-zone vCenter tag categories:

   Important

   If you specify different names for the openshift-region and openshift-zone vCenter tag categories, the installation of the OpenShift Container Platform cluster fails.

   $ govc tags.category.create -d "OpenShift region" openshift-region

   $ govc tags.category.create -d "OpenShift zone" openshift-zone

2. To create a region tag for each region vSphere data center where you want to deploy your cluster, enter the following command in your terminal:

   $ govc tags.create -c <region_tag_category> <region_tag>

3. To create a zone tag for each vSphere cluster where you want to deploy your cluster, enter the following command:

   $ govc tags.create -c <zone_tag_category> <zone_tag>

4. Attach region tags to each vCenter data center object by entering the following command:

   $ govc tags.attach -c <region_tag_category> <region_tag_1> /<data_center_1>

5. Attach the zone tags to each vCenter data center object by entering the following command:

   $ govc tags.attach -c <zone_tag_category> <zone_tag_1> /<data_center_1>/host/vcs-mdcnc-workload-1

6. Change to the directory that contains the installation program and initialize the cluster deployment according to your chosen installation requirements.

Procedure

1. Configure the HAProxy Ingress Controller, so that you can enable access to the cluster from your load balancer on ports 6443, 22623, 443, and 80. Depending on your needs, you can specify the IP address of a single subnet or IP addresses from multiple subnets in your HAProxy configuration.

   Example HAProxy configuration with one listed subnet

   # ...
   listen my-cluster-api-6443
       bind 192.168.1.100:6443
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /readyz
     http-check expect status 200
       server my-cluster-master-2 192.168.1.101:6443 check inter 10s rise 2 fall 2
       server my-cluster-master-0 192.168.1.102:6443 check inter 10s rise 2 fall 2
       server my-cluster-master-1 192.168.1.103:6443 check inter 10s rise 2 fall 2
   
   listen my-cluster-machine-config-api-22623
       bind 192.168.1.100:22623
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz
     http-check expect status 200
       server my-cluster-master-2 192.168.1.101:22623 check inter 10s rise 2 fall 2
       server my-cluster-master-0 192.168.1.102:22623 check inter 10s rise 2 fall 2
       server my-cluster-master-1 192.168.1.103:22623 check inter 10s rise 2 fall 2
   
   listen my-cluster-apps-443
       bind 192.168.1.100:443
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz/ready
     http-check expect status 200
       server my-cluster-worker-0 192.168.1.111:443 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-1 192.168.1.112:443 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-2 192.168.1.113:443 check port 1936 inter 10s rise 2 fall 2
   
   listen my-cluster-apps-80
      bind 192.168.1.100:80
      mode tcp
      balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz/ready
     http-check expect status 200
       server my-cluster-worker-0 192.168.1.111:80 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-1 192.168.1.112:80 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-2 192.168.1.113:80 check port 1936 inter 10s rise 2 fall 2
   # ...

   Example HAProxy configuration with multiple listed subnets

   # ...
   listen api-server-6443
       bind *:6443
       mode tcp
         server master-00 192.168.83.89:6443 check inter 1s
         server master-01 192.168.84.90:6443 check inter 1s
         server master-02 192.168.85.99:6443 check inter 1s
         server bootstrap 192.168.80.89:6443 check inter 1s
   
   listen machine-config-server-22623
       bind *:22623
       mode tcp
         server master-00 192.168.83.89:22623 check inter 1s
         server master-01 192.168.84.90:22623 check inter 1s
         server master-02 192.168.85.99:22623 check inter 1s
         server bootstrap 192.168.80.89:22623 check inter 1s
   
   listen ingress-router-80
       bind *:80
       mode tcp
       balance source
         server worker-00 192.168.83.100:80 check inter 1s
         server worker-01 192.168.83.101:80 check inter 1s
   
   listen ingress-router-443
       bind *:443
       mode tcp
       balance source
         server worker-00 192.168.83.100:443 check inter 1s
         server worker-01 192.168.83.101:443 check inter 1s
   
   listen ironic-api-6385
       bind *:6385
       mode tcp
       balance source
         server master-00 192.168.83.89:6385 check inter 1s
         server master-01 192.168.84.90:6385 check inter 1s
         server master-02 192.168.85.99:6385 check inter 1s
         server bootstrap 192.168.80.89:6385 check inter 1s
   
   listen inspector-api-5050
       bind *:5050
       mode tcp
       balance source
         server master-00 192.168.83.89:5050 check inter 1s
         server master-01 192.168.84.90:5050 check inter 1s
         server master-02 192.168.85.99:5050 check inter 1s
         server bootstrap 192.168.80.89:5050 check inter 1s
   # ...

2. Use the curl CLI command to verify that the user-managed load balancer and its resources are operational:

   1. Verify that the cluster machine configuration API is accessible to the Kubernetes API server resource, by running the following command and observing the response:

      $ curl https://<loadbalancer_ip_address>:6443/version --insecure

      If the configuration is correct, you receive a JSON object in response:

      {
        "major": "1",
        "minor": "11+",
        "gitVersion": "v1.11.0+ad103ed",
        "gitCommit": "ad103ed",
        "gitTreeState": "clean",
        "buildDate": "2019-01-09T06:44:10Z",
        "goVersion": "go1.10.3",
        "compiler": "gc",
        "platform": "linux/amd64"
      }

   2. Verify that the cluster machine configuration API is accessible to the Machine config server resource, by running the following command and observing the output:

      $ curl -v https://<loadbalancer_ip_address>:22623/healthz --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      Content-Length: 0

   3. Verify that the controller is accessible to the Ingress Controller resource on port 80, by running the following command and observing the output:

      $ curl -I -L -H "Host: console-openshift-console.apps.<cluster_name>.<base_domain>" http://<load_balancer_front_end_IP_address>

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 302 Found
      content-length: 0
      location: https://console-openshift-console.apps.ocp4.private.opequon.net/
      cache-control: no-cache

   4. Verify that the controller is accessible to the Ingress Controller resource on port 443, by running the following command and observing the output:

      $ curl -I -L --insecure --resolve console-openshift-console.apps.<cluster_name>.<base_domain>:443:<Load Balancer Front End IP Address> https://console-openshift-console.apps.<cluster_name>.<base_domain>

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=UlYWOyQ62LWjw2h003xtYSKlh1a0Py2hhctw0WmV2YEdhJjFyQwWcGBsja261dGLgaYO0nxzVErhiXt6QepA7g==; Path=/; Secure; SameSite=Lax
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Wed, 04 Oct 2023 16:29:38 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=1bf5e9573c9a2760c964ed1659cc1673; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

3. Configure the DNS records for your cluster to target the front-end IP addresses of the user-managed load balancer. You must update records to your DNS server for the cluster API and applications over the load balancer.

   Examples of modified DNS records

   <load_balancer_ip_address>  A  api.<cluster_name>.<base_domain>
   A record pointing to Load Balancer Front End

   <load_balancer_ip_address>   A apps.<cluster_name>.<base_domain>
   A record pointing to Load Balancer Front End

   Important

   DNS propagation might take some time for each DNS record to become available. Ensure that each DNS record propagates before validating each record.

4. For your OpenShift Container Platform cluster to use the user-managed load balancer, you must specify the following configuration in your cluster’s install-config.yaml file:

   # ...
   platform:
     vsphere:
       loadBalancer:
         type: UserManaged 1
         apiVIPs:
         - <api_ip> 2
         ingressVIPs:
         - <ingress_ip> 3
   # ...

   1

   Set UserManaged for the type parameter to specify a user-managed load balancer for your cluster. The parameter defaults to OpenShiftManagedDefault, which denotes the default internal load balancer. For services defined in an openshift-kni-infra namespace, a user-managed load balancer can deploy the coredns service to pods in your cluster but ignores keepalived and haproxy services.

   2

   Required parameter when you specify a user-managed load balancer. Specify the user-managed load balancer’s public IP address, so that the Kubernetes API can communicate with the user-managed load balancer.

   3

   Required parameter when you specify a user-managed load balancer. Specify the user-managed load balancer’s public IP address, so that the user-managed load balancer can manage ingress traffic for your cluster.

Verification

1. Use the curl CLI command to verify that the user-managed load balancer and DNS record configuration are operational:

   1. Verify that you can access the cluster API, by running the following command and observing the output:

      $ curl https://api.<cluster_name>.<base_domain>:6443/version --insecure

      If the configuration is correct, you receive a JSON object in response:

      {
        "major": "1",
        "minor": "11+",
        "gitVersion": "v1.11.0+ad103ed",
        "gitCommit": "ad103ed",
        "gitTreeState": "clean",
        "buildDate": "2019-01-09T06:44:10Z",
        "goVersion": "go1.10.3",
        "compiler": "gc",
        "platform": "linux/amd64"
        }

   2. Verify that you can access the cluster machine configuration, by running the following command and observing the output:

      $ curl -v https://api.<cluster_name>.<base_domain>:22623/healthz --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      Content-Length: 0

   3. Verify that you can access each cluster application on port, by running the following command and observing the output:

      $ curl http://console-openshift-console.apps.<cluster_name>.<base_domain> -I -L --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 302 Found
      content-length: 0
      location: https://console-openshift-console.apps.<cluster-name>.<base domain>/
      cache-control: no-cacheHTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=39HoZgztDnzjJkq/JuLJMeoKNXlfiVv2YgZc09c3TBOBU4NI6kDXaJH1LdicNhN1UsQWzon4Dor9GWGfopaTEQ==; Path=/; Secure
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Tue, 17 Nov 2020 08:42:10 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=9b714eb87e93cf34853e87a92d6894be; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

   4. Verify that you can access each cluster application on port 443, by running the following command and observing the output:

      $ curl https://console-openshift-console.apps.<cluster_name>.<base_domain> -I -L --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=UlYWOyQ62LWjw2h003xtYSKlh1a0Py2hhctw0WmV2YEdhJjFyQwWcGBsja261dGLgaYO0nxzVErhiXt6QepA7g==; Path=/; Secure; SameSite=Lax
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Wed, 04 Oct 2023 16:29:38 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=1bf5e9573c9a2760c964ed1659cc1673; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

Procedure

1. Edit your install-config.yaml file and add the proxy settings. For example:

   apiVersion: v1
   baseDomain: my.domain.com
   proxy:
     httpProxy: http://<username>:<pswd>@<ip>:<port> 1
     httpsProxy: https://<username>:<pswd>@<ip>:<port> 2
     noProxy: example.com 3
   additionalTrustBundle: | 4
       -----BEGIN CERTIFICATE-----
       <MY_TRUSTED_CA_CERT>
       -----END CERTIFICATE-----
   additionalTrustBundlePolicy: <policy_to_add_additionalTrustBundle> 5

   1

   A proxy URL to use for creating HTTP connections outside the cluster. The URL scheme must be http.

   2

   A proxy URL to use for creating HTTPS connections outside the cluster.

   3

   A comma-separated list of destination domain names, IP addresses, or other network CIDRs to exclude from proxying. Preface a domain with . to match subdomains only. For example, .y.com matches x.y.com, but not y.com. Use * to bypass the proxy for all destinations. You must include vCenter’s IP address and the IP range that you use for its machines.

   4

   If provided, the installation program generates a config map that is named user-ca-bundle in the openshift-config namespace that contains one or more additional CA certificates that are required for proxying HTTPS connections. The Cluster Network Operator then creates a trusted-ca-bundle config map that merges these contents with the Red Hat Enterprise Linux CoreOS (RHCOS) trust bundle, and this config map is referenced in the trustedCA field of the Proxy object. The additionalTrustBundle field is required unless the proxy’s identity certificate is signed by an authority from the RHCOS trust bundle.

   5

   Optional: The policy to determine the configuration of the Proxy object to reference the user-ca-bundle config map in the trustedCA field. The allowed values are Proxyonly and Always. Use Proxyonly to reference the user-ca-bundle config map only when http/https proxy is configured. Use Always to always reference the user-ca-bundle config map. The default value is Proxyonly.

   Note

   The installation program does not support the proxy readinessEndpoints field.

   Note

   If the installer times out, restart and then complete the deployment by using the wait-for command of the installer. For example:

   $ ./openshift-install wait-for install-complete --log-level debug

2. Save the file and reference it when installing OpenShift Container Platform.

Procedure

1. Enter the following govc command-line tool commands to create the openshift-region and openshift-zone vCenter tag categories:

   Important

   If you specify different names for the openshift-region and openshift-zone vCenter tag categories, the installation of the OpenShift Container Platform cluster fails.

   $ govc tags.category.create -d "OpenShift region" openshift-region

   $ govc tags.category.create -d "OpenShift zone" openshift-zone

2. To create a region tag for each region vSphere data center where you want to deploy your cluster, enter the following command in your terminal:

   $ govc tags.create -c <region_tag_category> <region_tag>

3. To create a zone tag for each vSphere cluster where you want to deploy your cluster, enter the following command:

   $ govc tags.create -c <zone_tag_category> <zone_tag>

4. Attach region tags to each vCenter data center object by entering the following command:

   $ govc tags.attach -c <region_tag_category> <region_tag_1> /<data_center_1>

5. Attach the zone tags to each vCenter data center object by entering the following command:

   $ govc tags.attach -c <zone_tag_category> <zone_tag_1> /<data_center_1>/host/vcs-mdcnc-workload-1

6. Change to the directory that contains the installation program and initialize the cluster deployment according to your chosen installation requirements.

Procedure

1. From the directory where you store your OpenShift Container Platform cluster manifest files, open the manifests/cluster-infrastructure-02-config.yml manifest file.

2. Add a nodeNetworking object to the file and specify internal and external network subnet CIDR implementations for the object.

   Tip

   For most networking situations, consider setting the standard multiple-subnet configuration. This configuration requires that you set the same IP address ranges in the nodeNetworking.internal.networkSubnetCidr and nodeNetworking.external.networkSubnetCidr parameters.

   Example of a configured cluster-infrastructure-02-config.yml manifest file

   apiVersion: config.openshift.io/v1
   kind: Infrastructure
   metadata:
     name: cluster
   spec:
     cloudConfig:
       key: config
       name: cloud-provider-config
     platformSpec:
       type: VSphere
       vsphere:
         failureDomains:
         - name: generated-failure-domain
         ...
          nodeNetworking:
            external:
              networkSubnetCidr:
              - <machine_network_cidr_ipv4>
              - <machine_network_cidr_ipv6>
            internal:
              networkSubnetCidr:
              - <machine_network_cidr_ipv4>
              - <machine_network_cidr_ipv6>
   # ...

Procedure

1. Configure the HAProxy Ingress Controller, so that you can enable access to the cluster from your load balancer on ports 6443, 22623, 443, and 80. Depending on your needs, you can specify the IP address of a single subnet or IP addresses from multiple subnets in your HAProxy configuration.

   Example HAProxy configuration with one listed subnet

   # ...
   listen my-cluster-api-6443
       bind 192.168.1.100:6443
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /readyz
     http-check expect status 200
       server my-cluster-master-2 192.168.1.101:6443 check inter 10s rise 2 fall 2
       server my-cluster-master-0 192.168.1.102:6443 check inter 10s rise 2 fall 2
       server my-cluster-master-1 192.168.1.103:6443 check inter 10s rise 2 fall 2
   
   listen my-cluster-machine-config-api-22623
       bind 192.168.1.100:22623
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz
     http-check expect status 200
       server my-cluster-master-2 192.168.1.101:22623 check inter 10s rise 2 fall 2
       server my-cluster-master-0 192.168.1.102:22623 check inter 10s rise 2 fall 2
       server my-cluster-master-1 192.168.1.103:22623 check inter 10s rise 2 fall 2
   
   listen my-cluster-apps-443
       bind 192.168.1.100:443
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz/ready
     http-check expect status 200
       server my-cluster-worker-0 192.168.1.111:443 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-1 192.168.1.112:443 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-2 192.168.1.113:443 check port 1936 inter 10s rise 2 fall 2
   
   listen my-cluster-apps-80
      bind 192.168.1.100:80
      mode tcp
      balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz/ready
     http-check expect status 200
       server my-cluster-worker-0 192.168.1.111:80 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-1 192.168.1.112:80 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-2 192.168.1.113:80 check port 1936 inter 10s rise 2 fall 2
   # ...

   Example HAProxy configuration with multiple listed subnets

   # ...
   listen api-server-6443
       bind *:6443
       mode tcp
         server master-00 192.168.83.89:6443 check inter 1s
         server master-01 192.168.84.90:6443 check inter 1s
         server master-02 192.168.85.99:6443 check inter 1s
         server bootstrap 192.168.80.89:6443 check inter 1s
   
   listen machine-config-server-22623
       bind *:22623
       mode tcp
         server master-00 192.168.83.89:22623 check inter 1s
         server master-01 192.168.84.90:22623 check inter 1s
         server master-02 192.168.85.99:22623 check inter 1s
         server bootstrap 192.168.80.89:22623 check inter 1s
   
   listen ingress-router-80
       bind *:80
       mode tcp
       balance source
         server worker-00 192.168.83.100:80 check inter 1s
         server worker-01 192.168.83.101:80 check inter 1s
   
   listen ingress-router-443
       bind *:443
       mode tcp
       balance source
         server worker-00 192.168.83.100:443 check inter 1s
         server worker-01 192.168.83.101:443 check inter 1s
   
   listen ironic-api-6385
       bind *:6385
       mode tcp
       balance source
         server master-00 192.168.83.89:6385 check inter 1s
         server master-01 192.168.84.90:6385 check inter 1s
         server master-02 192.168.85.99:6385 check inter 1s
         server bootstrap 192.168.80.89:6385 check inter 1s
   
   listen inspector-api-5050
       bind *:5050
       mode tcp
       balance source
         server master-00 192.168.83.89:5050 check inter 1s
         server master-01 192.168.84.90:5050 check inter 1s
         server master-02 192.168.85.99:5050 check inter 1s
         server bootstrap 192.168.80.89:5050 check inter 1s
   # ...

2. Use the curl CLI command to verify that the user-managed load balancer and its resources are operational:

   1. Verify that the cluster machine configuration API is accessible to the Kubernetes API server resource, by running the following command and observing the response:

      $ curl https://<loadbalancer_ip_address>:6443/version --insecure

      If the configuration is correct, you receive a JSON object in response:

      {
        "major": "1",
        "minor": "11+",
        "gitVersion": "v1.11.0+ad103ed",
        "gitCommit": "ad103ed",
        "gitTreeState": "clean",
        "buildDate": "2019-01-09T06:44:10Z",
        "goVersion": "go1.10.3",
        "compiler": "gc",
        "platform": "linux/amd64"
      }

   2. Verify that the cluster machine configuration API is accessible to the Machine config server resource, by running the following command and observing the output:

      $ curl -v https://<loadbalancer_ip_address>:22623/healthz --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      Content-Length: 0

   3. Verify that the controller is accessible to the Ingress Controller resource on port 80, by running the following command and observing the output:

      $ curl -I -L -H "Host: console-openshift-console.apps.<cluster_name>.<base_domain>" http://<load_balancer_front_end_IP_address>

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 302 Found
      content-length: 0
      location: https://console-openshift-console.apps.ocp4.private.opequon.net/
      cache-control: no-cache

   4. Verify that the controller is accessible to the Ingress Controller resource on port 443, by running the following command and observing the output:

      $ curl -I -L --insecure --resolve console-openshift-console.apps.<cluster_name>.<base_domain>:443:<Load Balancer Front End IP Address> https://console-openshift-console.apps.<cluster_name>.<base_domain>

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=UlYWOyQ62LWjw2h003xtYSKlh1a0Py2hhctw0WmV2YEdhJjFyQwWcGBsja261dGLgaYO0nxzVErhiXt6QepA7g==; Path=/; Secure; SameSite=Lax
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Wed, 04 Oct 2023 16:29:38 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=1bf5e9573c9a2760c964ed1659cc1673; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

3. Configure the DNS records for your cluster to target the front-end IP addresses of the user-managed load balancer. You must update records to your DNS server for the cluster API and applications over the load balancer.

   Examples of modified DNS records

   <load_balancer_ip_address>  A  api.<cluster_name>.<base_domain>
   A record pointing to Load Balancer Front End

   <load_balancer_ip_address>   A apps.<cluster_name>.<base_domain>
   A record pointing to Load Balancer Front End

   Important

   DNS propagation might take some time for each DNS record to become available. Ensure that each DNS record propagates before validating each record.

4. For your OpenShift Container Platform cluster to use the user-managed load balancer, you must specify the following configuration in your cluster’s install-config.yaml file:

   # ...
   platform:
     vsphere:
       loadBalancer:
         type: UserManaged 1
         apiVIPs:
         - <api_ip> 2
         ingressVIPs:
         - <ingress_ip> 3
   # ...

   1

   Set UserManaged for the type parameter to specify a user-managed load balancer for your cluster. The parameter defaults to OpenShiftManagedDefault, which denotes the default internal load balancer. For services defined in an openshift-kni-infra namespace, a user-managed load balancer can deploy the coredns service to pods in your cluster but ignores keepalived and haproxy services.

   2

   Required parameter when you specify a user-managed load balancer. Specify the user-managed load balancer’s public IP address, so that the Kubernetes API can communicate with the user-managed load balancer.

   3

   Required parameter when you specify a user-managed load balancer. Specify the user-managed load balancer’s public IP address, so that the user-managed load balancer can manage ingress traffic for your cluster.

Verification

1. Use the curl CLI command to verify that the user-managed load balancer and DNS record configuration are operational:

   1. Verify that you can access the cluster API, by running the following command and observing the output:

      $ curl https://api.<cluster_name>.<base_domain>:6443/version --insecure

      If the configuration is correct, you receive a JSON object in response:

      {
        "major": "1",
        "minor": "11+",
        "gitVersion": "v1.11.0+ad103ed",
        "gitCommit": "ad103ed",
        "gitTreeState": "clean",
        "buildDate": "2019-01-09T06:44:10Z",
        "goVersion": "go1.10.3",
        "compiler": "gc",
        "platform": "linux/amd64"
        }

   2. Verify that you can access the cluster machine configuration, by running the following command and observing the output:

      $ curl -v https://api.<cluster_name>.<base_domain>:22623/healthz --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      Content-Length: 0

   3. Verify that you can access each cluster application on port, by running the following command and observing the output:

      $ curl http://console-openshift-console.apps.<cluster_name>.<base_domain> -I -L --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 302 Found
      content-length: 0
      location: https://console-openshift-console.apps.<cluster-name>.<base domain>/
      cache-control: no-cacheHTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=39HoZgztDnzjJkq/JuLJMeoKNXlfiVv2YgZc09c3TBOBU4NI6kDXaJH1LdicNhN1UsQWzon4Dor9GWGfopaTEQ==; Path=/; Secure
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Tue, 17 Nov 2020 08:42:10 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=9b714eb87e93cf34853e87a92d6894be; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

   4. Verify that you can access each cluster application on port 443, by running the following command and observing the output:

      $ curl https://console-openshift-console.apps.<cluster_name>.<base_domain> -I -L --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=UlYWOyQ62LWjw2h003xtYSKlh1a0Py2hhctw0WmV2YEdhJjFyQwWcGBsja261dGLgaYO0nxzVErhiXt6QepA7g==; Path=/; Secure; SameSite=Lax
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Wed, 04 Oct 2023 16:29:38 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=1bf5e9573c9a2760c964ed1659cc1673; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

Procedure

1. Edit your install-config.yaml file and add the proxy settings. For example:

   apiVersion: v1
   baseDomain: my.domain.com
   proxy:
     httpProxy: http://<username>:<pswd>@<ip>:<port> 1
     httpsProxy: https://<username>:<pswd>@<ip>:<port> 2
     noProxy: example.com 3
   additionalTrustBundle: | 4
       -----BEGIN CERTIFICATE-----
       <MY_TRUSTED_CA_CERT>
       -----END CERTIFICATE-----
   additionalTrustBundlePolicy: <policy_to_add_additionalTrustBundle> 5

   1

   A proxy URL to use for creating HTTP connections outside the cluster. The URL scheme must be http.

   2

   A proxy URL to use for creating HTTPS connections outside the cluster.

   3

   A comma-separated list of destination domain names, IP addresses, or other network CIDRs to exclude from proxying. Preface a domain with . to match subdomains only. For example, .y.com matches x.y.com, but not y.com. Use * to bypass the proxy for all destinations. You must include vCenter’s IP address and the IP range that you use for its machines.

   4

   If provided, the installation program generates a config map that is named user-ca-bundle in the openshift-config namespace that contains one or more additional CA certificates that are required for proxying HTTPS connections. The Cluster Network Operator then creates a trusted-ca-bundle config map that merges these contents with the Red Hat Enterprise Linux CoreOS (RHCOS) trust bundle, and this config map is referenced in the trustedCA field of the Proxy object. The additionalTrustBundle field is required unless the proxy’s identity certificate is signed by an authority from the RHCOS trust bundle.

   5

   Optional: The policy to determine the configuration of the Proxy object to reference the user-ca-bundle config map in the trustedCA field. The allowed values are Proxyonly and Always. Use Proxyonly to reference the user-ca-bundle config map only when http/https proxy is configured. Use Always to always reference the user-ca-bundle config map. The default value is Proxyonly.

   Note

   The installation program does not support the proxy readinessEndpoints field.

   Note

   If the installer times out, restart and then complete the deployment by using the wait-for command of the installer. For example:

   $ ./openshift-install wait-for install-complete --log-level debug

2. Save the file and reference it when installing OpenShift Container Platform.

Procedure

1. Enter the following govc command-line tool commands to create the openshift-region and openshift-zone vCenter tag categories:

   Important

   If you specify different names for the openshift-region and openshift-zone vCenter tag categories, the installation of the OpenShift Container Platform cluster fails.

   $ govc tags.category.create -d "OpenShift region" openshift-region

   $ govc tags.category.create -d "OpenShift zone" openshift-zone

2. To create a region tag for each region vSphere data center where you want to deploy your cluster, enter the following command in your terminal:

   $ govc tags.create -c <region_tag_category> <region_tag>

3. To create a zone tag for each vSphere cluster where you want to deploy your cluster, enter the following command:

   $ govc tags.create -c <zone_tag_category> <zone_tag>

4. Attach region tags to each vCenter data center object by entering the following command:

   $ govc tags.attach -c <region_tag_category> <region_tag_1> /<data_center_1>

5. Attach the zone tags to each vCenter data center object by entering the following command:

   $ govc tags.attach -c <zone_tag_category> <zone_tag_1> /<data_center_1>/host/vcs-mdcnc-workload-1

6. Change to the directory that contains the installation program and initialize the cluster deployment according to your chosen installation requirements.

Procedure

1. Configure the HAProxy Ingress Controller, so that you can enable access to the cluster from your load balancer on ports 6443, 22623, 443, and 80. Depending on your needs, you can specify the IP address of a single subnet or IP addresses from multiple subnets in your HAProxy configuration.

   Example HAProxy configuration with one listed subnet

   # ...
   listen my-cluster-api-6443
       bind 192.168.1.100:6443
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /readyz
     http-check expect status 200
       server my-cluster-master-2 192.168.1.101:6443 check inter 10s rise 2 fall 2
       server my-cluster-master-0 192.168.1.102:6443 check inter 10s rise 2 fall 2
       server my-cluster-master-1 192.168.1.103:6443 check inter 10s rise 2 fall 2
   
   listen my-cluster-machine-config-api-22623
       bind 192.168.1.100:22623
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz
     http-check expect status 200
       server my-cluster-master-2 192.168.1.101:22623 check inter 10s rise 2 fall 2
       server my-cluster-master-0 192.168.1.102:22623 check inter 10s rise 2 fall 2
       server my-cluster-master-1 192.168.1.103:22623 check inter 10s rise 2 fall 2
   
   listen my-cluster-apps-443
       bind 192.168.1.100:443
       mode tcp
       balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz/ready
     http-check expect status 200
       server my-cluster-worker-0 192.168.1.111:443 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-1 192.168.1.112:443 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-2 192.168.1.113:443 check port 1936 inter 10s rise 2 fall 2
   
   listen my-cluster-apps-80
      bind 192.168.1.100:80
      mode tcp
      balance roundrobin
     option httpchk
     http-check connect
     http-check send meth GET uri /healthz/ready
     http-check expect status 200
       server my-cluster-worker-0 192.168.1.111:80 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-1 192.168.1.112:80 check port 1936 inter 10s rise 2 fall 2
       server my-cluster-worker-2 192.168.1.113:80 check port 1936 inter 10s rise 2 fall 2
   # ...

   Example HAProxy configuration with multiple listed subnets

   # ...
   listen api-server-6443
       bind *:6443
       mode tcp
         server master-00 192.168.83.89:6443 check inter 1s
         server master-01 192.168.84.90:6443 check inter 1s
         server master-02 192.168.85.99:6443 check inter 1s
         server bootstrap 192.168.80.89:6443 check inter 1s
   
   listen machine-config-server-22623
       bind *:22623
       mode tcp
         server master-00 192.168.83.89:22623 check inter 1s
         server master-01 192.168.84.90:22623 check inter 1s
         server master-02 192.168.85.99:22623 check inter 1s
         server bootstrap 192.168.80.89:22623 check inter 1s
   
   listen ingress-router-80
       bind *:80
       mode tcp
       balance source
         server worker-00 192.168.83.100:80 check inter 1s
         server worker-01 192.168.83.101:80 check inter 1s
   
   listen ingress-router-443
       bind *:443
       mode tcp
       balance source
         server worker-00 192.168.83.100:443 check inter 1s
         server worker-01 192.168.83.101:443 check inter 1s
   
   listen ironic-api-6385
       bind *:6385
       mode tcp
       balance source
         server master-00 192.168.83.89:6385 check inter 1s
         server master-01 192.168.84.90:6385 check inter 1s
         server master-02 192.168.85.99:6385 check inter 1s
         server bootstrap 192.168.80.89:6385 check inter 1s
   
   listen inspector-api-5050
       bind *:5050
       mode tcp
       balance source
         server master-00 192.168.83.89:5050 check inter 1s
         server master-01 192.168.84.90:5050 check inter 1s
         server master-02 192.168.85.99:5050 check inter 1s
         server bootstrap 192.168.80.89:5050 check inter 1s
   # ...

2. Use the curl CLI command to verify that the user-managed load balancer and its resources are operational:

   1. Verify that the cluster machine configuration API is accessible to the Kubernetes API server resource, by running the following command and observing the response:

      $ curl https://<loadbalancer_ip_address>:6443/version --insecure

      If the configuration is correct, you receive a JSON object in response:

      {
        "major": "1",
        "minor": "11+",
        "gitVersion": "v1.11.0+ad103ed",
        "gitCommit": "ad103ed",
        "gitTreeState": "clean",
        "buildDate": "2019-01-09T06:44:10Z",
        "goVersion": "go1.10.3",
        "compiler": "gc",
        "platform": "linux/amd64"
      }

   2. Verify that the cluster machine configuration API is accessible to the Machine config server resource, by running the following command and observing the output:

      $ curl -v https://<loadbalancer_ip_address>:22623/healthz --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      Content-Length: 0

   3. Verify that the controller is accessible to the Ingress Controller resource on port 80, by running the following command and observing the output:

      $ curl -I -L -H "Host: console-openshift-console.apps.<cluster_name>.<base_domain>" http://<load_balancer_front_end_IP_address>

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 302 Found
      content-length: 0
      location: https://console-openshift-console.apps.ocp4.private.opequon.net/
      cache-control: no-cache

   4. Verify that the controller is accessible to the Ingress Controller resource on port 443, by running the following command and observing the output:

      $ curl -I -L --insecure --resolve console-openshift-console.apps.<cluster_name>.<base_domain>:443:<Load Balancer Front End IP Address> https://console-openshift-console.apps.<cluster_name>.<base_domain>

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=UlYWOyQ62LWjw2h003xtYSKlh1a0Py2hhctw0WmV2YEdhJjFyQwWcGBsja261dGLgaYO0nxzVErhiXt6QepA7g==; Path=/; Secure; SameSite=Lax
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Wed, 04 Oct 2023 16:29:38 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=1bf5e9573c9a2760c964ed1659cc1673; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

3. Configure the DNS records for your cluster to target the front-end IP addresses of the user-managed load balancer. You must update records to your DNS server for the cluster API and applications over the load balancer.

   Examples of modified DNS records

   <load_balancer_ip_address>  A  api.<cluster_name>.<base_domain>
   A record pointing to Load Balancer Front End

   <load_balancer_ip_address>   A apps.<cluster_name>.<base_domain>
   A record pointing to Load Balancer Front End

   Important

   DNS propagation might take some time for each DNS record to become available. Ensure that each DNS record propagates before validating each record.

4. For your OpenShift Container Platform cluster to use the user-managed load balancer, you must specify the following configuration in your cluster’s install-config.yaml file:

   # ...
   platform:
     vsphere:
       loadBalancer:
         type: UserManaged 1
         apiVIPs:
         - <api_ip> 2
         ingressVIPs:
         - <ingress_ip> 3
   # ...

   1

   Set UserManaged for the type parameter to specify a user-managed load balancer for your cluster. The parameter defaults to OpenShiftManagedDefault, which denotes the default internal load balancer. For services defined in an openshift-kni-infra namespace, a user-managed load balancer can deploy the coredns service to pods in your cluster but ignores keepalived and haproxy services.

   2

   Required parameter when you specify a user-managed load balancer. Specify the user-managed load balancer’s public IP address, so that the Kubernetes API can communicate with the user-managed load balancer.

   3

   Required parameter when you specify a user-managed load balancer. Specify the user-managed load balancer’s public IP address, so that the user-managed load balancer can manage ingress traffic for your cluster.

Verification

1. Use the curl CLI command to verify that the user-managed load balancer and DNS record configuration are operational:

   1. Verify that you can access the cluster API, by running the following command and observing the output:

      $ curl https://api.<cluster_name>.<base_domain>:6443/version --insecure

      If the configuration is correct, you receive a JSON object in response:

      {
        "major": "1",
        "minor": "11+",
        "gitVersion": "v1.11.0+ad103ed",
        "gitCommit": "ad103ed",
        "gitTreeState": "clean",
        "buildDate": "2019-01-09T06:44:10Z",
        "goVersion": "go1.10.3",
        "compiler": "gc",
        "platform": "linux/amd64"
        }

   2. Verify that you can access the cluster machine configuration, by running the following command and observing the output:

      $ curl -v https://api.<cluster_name>.<base_domain>:22623/healthz --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      Content-Length: 0

   3. Verify that you can access each cluster application on port, by running the following command and observing the output:

      $ curl http://console-openshift-console.apps.<cluster_name>.<base_domain> -I -L --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 302 Found
      content-length: 0
      location: https://console-openshift-console.apps.<cluster-name>.<base domain>/
      cache-control: no-cacheHTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=39HoZgztDnzjJkq/JuLJMeoKNXlfiVv2YgZc09c3TBOBU4NI6kDXaJH1LdicNhN1UsQWzon4Dor9GWGfopaTEQ==; Path=/; Secure
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Tue, 17 Nov 2020 08:42:10 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=9b714eb87e93cf34853e87a92d6894be; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private

   4. Verify that you can access each cluster application on port 443, by running the following command and observing the output:

      $ curl https://console-openshift-console.apps.<cluster_name>.<base_domain> -I -L --insecure

      If the configuration is correct, the output from the command shows the following response:

      HTTP/1.1 200 OK
      referrer-policy: strict-origin-when-cross-origin
      set-cookie: csrf-token=UlYWOyQ62LWjw2h003xtYSKlh1a0Py2hhctw0WmV2YEdhJjFyQwWcGBsja261dGLgaYO0nxzVErhiXt6QepA7g==; Path=/; Secure; SameSite=Lax
      x-content-type-options: nosniff
      x-dns-prefetch-control: off
      x-frame-options: DENY
      x-xss-protection: 1; mode=block
      date: Wed, 04 Oct 2023 16:29:38 GMT
      content-type: text/html; charset=utf-8
      set-cookie: 1e2670d92730b515ce3a1bb65da45062=1bf5e9573c9a2760c964ed1659cc1673; path=/; HttpOnly; Secure; SameSite=None
      cache-control: private