1.3. Installing a cluster on OpenStack on your own infrastructure

Procedure

1. On a command line, add the repositories:

   1. Register with Red Hat Subscription Manager:

      $ sudo subscription-manager register # If not done already

   2. Pull the latest subscription data:

      $ sudo subscription-manager attach --pool=$YOUR_POOLID # If not done already

   3. Disable the current repositories:

      $ sudo subscription-manager repos --disable=* # If not done already

   4. Add the required repositories:

      $ sudo subscription-manager repos \
        --enable=rhel-8-for-x86_64-baseos-rpms \
        --enable=openstack-16-tools-for-rhel-8-x86_64-rpms \
        --enable=ansible-2.9-for-rhel-8-x86_64-rpms \
        --enable=rhel-8-for-x86_64-appstream-rpms

2. Install the modules:

   $ sudo yum install python3-openstackclient ansible python3-openstacksdk python3-netaddr

3. Ensure that the python command points to python3:

   $ sudo alternatives --set python /usr/bin/python3

Procedure

1. Access the Infrastructure Provider page on the Red Hat OpenShift Cluster Manager site. If you have a Red Hat account, log in with your credentials. If you do not, create an account.

2. Navigate to the page for your installation type, download the installation program for your operating system, and place the file in the directory where you will store the installation configuration files.

   重要

   The installation program creates several files on the computer that you use to install your cluster. You must keep both the installation program and the files that the installation program creates after you finish installing the cluster.

   重要

   Deleting the files created by the installation program does not remove your cluster, even if the cluster failed during installation. You must complete the OpenShift Container Platform uninstallation procedures outlined for your specific cloud provider to remove your cluster entirely.

3. Extract the installation program. For example, on a computer that uses a Linux operating system, run the following command:

   $ tar xvf <installation_program>.tar.gz

4. From the Pull Secret page on the Red Hat OpenShift Cluster Manager site, download your installation pull secret as a .txt file. This pull secret allows you to authenticate with the services that are provided by the included authorities, including Quay.io, which serves the container images for OpenShift Container Platform components.

Procedure

1. If you do not have an SSH key that is configured for password-less authentication on your computer, create one. For example, on a computer that uses a Linux operating system, run the following command:

   $ ssh-keygen -t ed25519 -N '' \
       -f <path>/<file_name> 1

   1

   Specify the path and file name, such as ~/.ssh/id_rsa, of the new SSH key. If you have an existing key pair, ensure your public key is in the your ~/.ssh directory.

   Running this command generates an SSH key that does not require a password in the location that you specified.

   注意

   If you plan to install an OpenShift Container Platform cluster that uses FIPS Validated / Modules in Process cryptographic libraries on the x86_64 architecture, do not create a key that uses the ed25519 algorithm. Instead, create a key that uses the rsa or ecdsa algorithm.

2. Start the ssh-agent process as a background task:

   $ eval "$(ssh-agent -s)"

   Example output

   Agent pid 31874

3. Add your SSH private key to the ssh-agent:

   $ ssh-add <path>/<file_name> 1

   Example output

   Identity added: /home/<you>/<path>/<file_name> (<computer_name>)

   1

   Specify the path and file name for your SSH private key, such as ~/.ssh/id_rsa

Procedure

1. Log in to the Red Hat customer portal’s Product Downloads page.

2. Under Version, select the most recent release of OpenShift Container Platform 4.5 for Red Hat Enterprise Linux (RHEL) 8.

   重要

   The RHCOS images might not change with every release of OpenShift Container Platform. You must download images with the highest version that is less than or equal to the OpenShift Container Platform version that you install. Use the image versions that match your OpenShift Container Platform version if they are available.

3. Download the Red Hat Enterprise Linux CoreOS (RHCOS) - OpenStack Image (QCOW).

4. Decompress the image.

   注意

   You must decompress the RHOSP image before the cluster can use it. The name of the downloaded file might not contain a compression extension, like .gz or .tgz. To find out if or how the file is compressed, in a command line, enter:

   $ file <name_of_downloaded_file>

5. From the image that you downloaded, create an image that is named rhcos in your cluster by using the RHOSP CLI:

   $ openstack image create --container-format=bare --disk-format=qcow2 --file rhcos-${RHCOS_VERSION}-openstack.qcow2 rhcos

   重要

   Depending on your RHOSP environment, you might be able to upload the image in either .raw or .qcow2 formats. If you use Ceph, you must use the .raw format.

   警告

   If the installation program finds multiple images with the same name, it chooses one of them at random. To avoid this behavior, create unique names for resources in RHOSP.

Procedure

1. Using the RHOSP CLI, verify the name and ID of the 'External' network:

   $ openstack network list --long -c ID -c Name -c "Router Type"

   Example output

   +--------------------------------------+----------------+-------------+
   | ID                                   | Name           | Router Type |
   +--------------------------------------+----------------+-------------+
   | 148a8023-62a7-4672-b018-003462f8d7dc | public_network | External    |
   +--------------------------------------+----------------+-------------+

Procedure

1. Create the clouds.yaml file:

   • If your RHOSP distribution includes the Horizon web UI, generate a clouds.yaml file in it.

     重要

     Remember to add a password to the auth field. You can also keep secrets in a separate file from clouds.yaml.

   • If your RHOSP distribution does not include the Horizon web UI, or you do not want to use Horizon, create the file yourself. For detailed information about clouds.yaml, see Config files in the RHOSP documentation.

     clouds:
       shiftstack:
         auth:
           auth_url: http://10.10.14.42:5000/v3
           project_name: shiftstack
           username: shiftstack_user
           password: XXX
           user_domain_name: Default
           project_domain_name: Default
       dev-env:
         region_name: RegionOne
         auth:
           username: 'devuser'
           password: XXX
           project_name: 'devonly'
           auth_url: 'https://10.10.14.22:5001/v2.0'

2. If your RHOSP installation uses self-signed certificate authority (CA) certificates for endpoint authentication:

   1. Copy the certificate authority file to your machine.

   2. Add the machine to the certificate authority trust bundle:

      $ sudo cp ca.crt.pem /etc/pki/ca-trust/source/anchors/

   3. Update the trust bundle:

      $ sudo update-ca-trust extract

   4. Add the cacerts key to the clouds.yaml file. The value must be an absolute, non-root-accessible path to the CA certificate:

      clouds:
        shiftstack:
          ...
          cacert: "/etc/pki/ca-trust/source/anchors/ca.crt.pem"

      提示

      After you run the installer with a custom CA certificate, you can update the certificate by editing the value of the ca-cert.pem key in the cloud-provider-config keymap. On a command line, run:

      $ oc edit configmap -n openshift-config cloud-provider-config

3. Place the clouds.yaml file in one of the following locations:

   1. The value of the OS_CLIENT_CONFIG_FILE environment variable
   2. The current directory
   3. A Unix-specific user configuration directory, for example ~/.config/openstack/clouds.yaml

   4. A Unix-specific site configuration directory, for example /etc/openstack/clouds.yaml

      The installation program searches for clouds.yaml in that order.

Procedure

1. Create the install-config.yaml file.

   1. Run the following command:

      $ ./openshift-install create install-config --dir=<installation_directory> 1

      1

      For <installation_directory>, specify the directory name to store the files that the installation program creates.

      重要

      Specify an empty directory. Some installation assets, like bootstrap X.509 certificates have short expiration intervals, so you must not reuse an installation directory. If you want to reuse individual files from another cluster installation, you can copy them into your directory. However, the file names for the installation assets might change between releases. Use caution when copying installation files from an earlier OpenShift Container Platform version.

   2. At the prompts, provide the configuration details for your cloud:

      1. Optional: Select an SSH key to use to access your cluster machines.

         注意

         For production OpenShift Container Platform clusters on which you want to perform installation debugging or disaster recovery, specify an SSH key that your ssh-agent process uses.

      2. Select openstack as the platform to target.
      3. Specify the Red Hat OpenStack Platform (RHOSP) external network name to use for installing the cluster.
      4. Specify the floating IP address to use for external access to the OpenShift API.
      5. Specify a RHOSP flavor with at least 16 GB RAM to use for control plane and compute nodes.
      6. Select the base domain to deploy the cluster to. All DNS records will be sub-domains of this base and will also include the cluster name.
      7. Enter a name for your cluster. The name must be 14 or fewer characters long.
      8. Paste the pull secret that you obtained from the Pull Secret page on the Red Hat OpenShift Cluster Manager site.
2. Modify the install-config.yaml file. You can find more information about the available parameters in the Installation configuration parameters section.

3. Back up the install-config.yaml file so that you can use it to install multiple clusters.

   重要

   The install-config.yaml file is consumed during the installation process. If you want to reuse the file, you must back it up now.

Procedure

1. Generate the Kubernetes manifests for the cluster:

   $ ./openshift-install create manifests --dir=<installation_directory> 1

   Example output

   INFO Consuming Install Config from target directory
   WARNING Making control-plane schedulable by setting MastersSchedulable to true for Scheduler cluster settings

   1

   For <installation_directory>, specify the installation directory that contains the install-config.yaml file you created.

   Because you create your own compute machines later in the installation process, you can safely ignore this warning.

2. Remove the Kubernetes manifest files that define the control plane machines and compute machine sets:

   $ rm -f openshift/99_openshift-cluster-api_master-machines-*.yaml openshift/99_openshift-cluster-api_worker-machineset-*.yaml

   Because you create and manage these resources yourself, you do not have to initialize them.

   • You can preserve the machine set files to create compute machines by using the machine API, but you must update references to them to match your environment.

3. Modify the <installation_directory>/manifests/cluster-scheduler-02-config.yml Kubernetes manifest file to prevent pods from being scheduled on the control plane machines:

   1. Open the <installation_directory>/manifests/cluster-scheduler-02-config.yml file.
   2. Locate the mastersSchedulable parameter and set its value to False.
   3. Save and exit the file.

4. Obtain the Ignition config files:

   $ ./openshift-install create ignition-configs --dir=<installation_directory> 1

   1

   For <installation_directory>, specify the same installation directory.

   The following files are generated in the directory:

   .
   ├── auth
   │   ├── kubeadmin-password
   │   └── kubeconfig
   ├── bootstrap.ign
   ├── master.ign
   ├── metadata.json
   └── worker.ign

5. Export the metadata file’s infraID key as an environment variable:

   $ export INFRA_ID=$(jq -r .infraID metadata.json)

Procedure

1. Run the following Python script. The script modifies the bootstrap Ignition file to set the host name and, if available, CA certificate file when it runs:

   import base64
   import json
   import os
   
   with open('bootstrap.ign', 'r') as f:
       ignition = json.load(f)
   
   files = ignition['storage'].get('files', [])
   
   infra_id = os.environ.get('INFRA_ID', 'openshift').encode()
   hostname_b64 = base64.standard_b64encode(infra_id + b'-bootstrap\n').decode().strip()
   files.append(
   {
       'path': '/etc/hostname',
       'mode': 420,
       'contents': {
           'source': 'data:text/plain;charset=utf-8;base64,' + hostname_b64,
           'verification': {}
       },
       'filesystem': 'root',
   })
   
   ca_cert_path = os.environ.get('OS_CACERT', '')
   if ca_cert_path:
       with open(ca_cert_path, 'r') as f:
           ca_cert = f.read().encode()
           ca_cert_b64 = base64.standard_b64encode(ca_cert).decode().strip()
   
       files.append(
       {
           'path': '/opt/openshift/tls/cloud-ca-cert.pem',
           'mode': 420,
           'contents': {
               'source': 'data:text/plain;charset=utf-8;base64,' + ca_cert_b64,
               'verification': {}
           },
           'filesystem': 'root',
       })
   
   ignition['storage']['files'] = files;
   
   with open('bootstrap.ign', 'w') as f:
       json.dump(ignition, f)

2. Using the RHOSP CLI, create an image that uses the bootstrap Ignition file:

   $ openstack image create --disk-format=raw --container-format=bare --file bootstrap.ign <image_name>

3. Get the image’s details:

   $ openstack image show <image_name>

   Make a note of the file value; it follows the pattern v2/images/<image_ID>/file.

   注意

   Verify that the image you created is active.

4. Retrieve the image service’s public address:

   $ openstack catalog show image

5. Combine the public address with the image file value and save the result as the storage location. The location follows the pattern <image_service_public_URL>/v2/images/<image_ID>/file.

6. Generate an auth token and save the token ID:

   $ openstack token issue -c id -f value

7. Insert the following content into a file called $INFRA_ID-bootstrap-ignition.json and edit the placeholders to match your own values:

   {
     "ignition": {
       "config": {
         "append": [{
           "source": "<storage_url>", 1
           "verification": {},
           "httpHeaders": [{
             "name": "X-Auth-Token", 2
             "value": "<token_ID>" 3
           }]
         }]
       },
       "security": {
         "tls": {
           "certificateAuthorities": [{
             "source": "data:text/plain;charset=utf-8;base64,<base64_encoded_certificate>", 4
             "verification": {}
           }]
         }
       },
       "timeouts": {},
       "version": "2.4.0"
     },
     "networkd": {},
     "passwd": {},
     "storage": {},
     "systemd": {}
   }

   1

   Replace the value of ignition.config.append.source with the bootstrap Ignition file storage URL.

   2

   Set name in httpHeaders to "X-Auth-Token".

   3

   Set value in httpHeaders to your token’s ID.

   4

   If the bootstrap Ignition file server uses a self-signed certificate, include the base64-encoded certificate.

8. Save the secondary Ignition config file.

Procedure

1. Insert the following content into a local file that is called common.yaml:

   例 1.1. common.yaml Ansible playbook

   - hosts: localhost
     gather_facts: no
   
     vars_files:
     - metadata.json
   
     tasks:
     - name: 'Compute resource names'
       set_fact:
         cluster_id_tag: "openshiftClusterID={{ infraID }}"
         os_network: "{{ infraID }}-network"
         os_subnet: "{{ infraID }}-nodes"
         os_router: "{{ infraID }}-external-router"
         # Port names
         os_port_api: "{{ infraID }}-api-port"
         os_port_ingress: "{{ infraID }}-ingress-port"
         os_port_bootstrap: "{{ infraID }}-bootstrap-port"
         os_port_master: "{{ infraID }}-master-port"
         os_port_worker: "{{ infraID }}-worker-port"
         # Security groups names
         os_sg_master: "{{ infraID }}-master"
         os_sg_worker: "{{ infraID }}-worker"
         # Server names
         os_bootstrap_server_name: "{{ infraID }}-bootstrap"
         os_cp_server_name: "{{ infraID }}-master"
         os_cp_server_group_name: "{{ infraID }}-master"
         os_compute_server_name: "{{ infraID }}-worker"
         # Trunk names
         os_cp_trunk_name: "{{ infraID }}-master-trunk"
         os_compute_trunk_name: "{{ infraID }}-worker-trunk"
         # Subnet pool name
         subnet_pool: "{{ infraID }}-kuryr-pod-subnetpool"
         # Service network name
         os_svc_network: "{{ infraID }}-kuryr-service-network"
         # Service subnet name
         os_svc_subnet: "{{ infraID }}-kuryr-service-subnet"
         # Ignition files
         os_bootstrap_ignition: "{{ infraID }}-bootstrap-ignition.json"

2. Insert the following content into a local file that is called inventory.yaml:

   例 1.2. inventory.yaml Ansible playbook

   all:
     hosts:
       localhost:
         ansible_connection: local
         ansible_python_interpreter: "{{ansible_playbook_python}}"
   
         # User-provided values
         os_subnet_range: '10.0.0.0/16'
         os_flavor_master: 'm1.xlarge'
         os_flavor_worker: 'm1.large'
         os_image_rhcos: 'rhcos'
         os_external_network: 'external'
         # OpenShift API floating IP address
         os_api_fip: '203.0.113.23'
         # OpenShift Ingress floating IP address
         os_ingress_fip: '203.0.113.19'
         # Service subnet cidr
         svc_subnet_range: '172.30.0.0/16'
         os_svc_network_range: '172.30.0.0/15'
         # Subnet pool prefixes
         cluster_network_cidrs: '10.128.0.0/14'
         # Subnet pool prefix length
         host_prefix: '23'
         # Name of the SDN.
         # Possible values are OpenshiftSDN or Kuryr.
         os_networking_type: 'OpenshiftSDN'
   
         # Number of provisioned Control Plane nodes
         # 3 is the minimum number for a fully-functional cluster.
         os_cp_nodes_number: 3
   
         # Number of provisioned Compute nodes.
         # 3 is the minimum number for a fully-functional cluster.
         os_compute_nodes_number: 3

3. Insert the following content into a local file that is called security-groups.yaml:

   例 1.3. security-groups.yaml

   # Required Python packages:
   #
   # ansible
   # openstackclient
   # openstacksdk
   
   - import_playbook: common.yaml
   
   - hosts: all
     gather_facts: no
   
     tasks:
     - name: 'Create the master security group'
       os_security_group:
         name: "{{ os_sg_master }}"
   
     - name: 'Set master security group tag'
       command:
         cmd: "openstack security group set --tag {{ cluster_id_tag }} {{ os_sg_master }} "
   
     - name: 'Create the worker security group'
       os_security_group:
         name: "{{ os_sg_worker }}"
   
     - name: 'Set worker security group tag'
       command:
         cmd: "openstack security group set --tag {{ cluster_id_tag }} {{ os_sg_worker }} "
   
     - name: 'Create master-sg rule "ICMP"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: icmp
   
     - name: 'Create master-sg rule "machine config server"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 22623
         port_range_max: 22623
   
     - name: 'Create master-sg rule "SSH"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         port_range_min: 22
         port_range_max: 22
   
     - name: 'Create master-sg rule "DNS (TCP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         remote_ip_prefix: "{{ os_subnet_range }}"
         protocol: tcp
         port_range_min: 53
         port_range_max: 53
   
     - name: 'Create master-sg rule "DNS (UDP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         remote_ip_prefix: "{{ os_subnet_range }}"
         protocol: udp
         port_range_min: 53
         port_range_max: 53
   
     - name: 'Create master-sg rule "mDNS"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         remote_ip_prefix: "{{ os_subnet_range }}"
         protocol: udp
         port_range_min: 5353
         port_range_max: 5353
   
     - name: 'Create master-sg rule "OpenShift API"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         port_range_min: 6443
         port_range_max: 6443
   
     - name: 'Create master-sg rule "VXLAN"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 4789
         port_range_max: 4789
   
     - name: 'Create master-sg rule "Geneve"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 6081
         port_range_max: 6081
   
     - name: 'Create master-sg rule "ovndb"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 6641
         port_range_max: 6642
   
     - name: 'Create master-sg rule "master ingress internal (TCP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 9000
         port_range_max: 9999
   
     - name: 'Create master-sg rule "master ingress internal (UDP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 9000
         port_range_max: 9999
   
     - name: 'Create master-sg rule "kube scheduler"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 10259
         port_range_max: 10259
   
     - name: 'Create master-sg rule "kube controller manager"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 10257
         port_range_max: 10257
   
     - name: 'Create master-sg rule "master ingress kubelet secure"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 10250
         port_range_max: 10250
   
     - name: 'Create master-sg rule "etcd"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 2379
         port_range_max: 2380
   
     - name: 'Create master-sg rule "master ingress services (TCP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 30000
         port_range_max: 32767
   
     - name: 'Create master-sg rule "master ingress services (UDP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 30000
         port_range_max: 32767
   
     - name: 'Create master-sg rule "VRRP"'
       os_security_group_rule:
         security_group: "{{ os_sg_master }}"
         protocol: '112'
         remote_ip_prefix: "{{ os_subnet_range }}"
   
   
     - name: 'Create worker-sg rule "ICMP"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: icmp
   
     - name: 'Create worker-sg rule "SSH"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: tcp
         port_range_min: 22
         port_range_max: 22
   
     - name: 'Create worker-sg rule "mDNS"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 5353
         port_range_max: 5353
   
     - name: 'Create worker-sg rule "Ingress HTTP"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: tcp
         port_range_min: 80
         port_range_max: 80
   
     - name: 'Create worker-sg rule "Ingress HTTPS"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: tcp
         port_range_min: 443
         port_range_max: 443
   
     - name: 'Create worker-sg rule "router"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 1936
         port_range_max: 1936
   
     - name: 'Create worker-sg rule "VXLAN"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 4789
         port_range_max: 4789
   
     - name: 'Create worker-sg rule "Geneve"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 6081
         port_range_max: 6081
   
     - name: 'Create worker-sg rule "worker ingress internal (TCP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 9000
         port_range_max: 9999
   
     - name: 'Create worker-sg rule "worker ingress internal (UDP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 9000
         port_range_max: 9999
   
     - name: 'Create worker-sg rule "worker ingress kubelet insecure"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 10250
         port_range_max: 10250
   
     - name: 'Create worker-sg rule "worker ingress services (TCP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: tcp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 30000
         port_range_max: 32767
   
     - name: 'Create worker-sg rule "worker ingress services (UDP)"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: udp
         remote_ip_prefix: "{{ os_subnet_range }}"
         port_range_min: 30000
         port_range_max: 32767
   
     - name: 'Create worker-sg rule "VRRP"'
       os_security_group_rule:
         security_group: "{{ os_sg_worker }}"
         protocol: '112'
         remote_ip_prefix: "{{ os_subnet_range }}"

4. Insert the following content into a local file that is called network.yaml:

   例 1.4. network.yaml

   # Required Python packages:
   #
   # ansible
   # openstackclient
   # openstacksdk
   # netaddr
   
   - import_playbook: common.yaml
   
   - hosts: all
     gather_facts: no
   
     tasks:
     - name: 'Create the cluster network'
       os_network:
         name: "{{ os_network }}"
   
     - name: 'Set the cluster network tag'
       command:
         cmd: "openstack network set --tag {{ cluster_id_tag }} {{ os_network }}"
   
     - name: 'Create a subnet'
       os_subnet:
         name: "{{ os_subnet }}"
         network_name: "{{ os_network }}"
         cidr: "{{ os_subnet_range }}"
         allocation_pool_start: "{{ os_subnet_range | next_nth_usable(10) }}"
         allocation_pool_end: "{{ os_subnet_range | ipaddr('last_usable') }}"
   
     - name: 'Set the cluster subnet tag'
       command:
         cmd: "openstack subnet set --tag {{ cluster_id_tag }} {{ os_subnet }}"
   
     - name: 'Create the service network'
       os_network:
         name: "{{ os_svc_network }}"
       when: os_networking_type == "Kuryr"
   
     - name: 'Set the service network tag'
       command:
         cmd: "openstack network set --tag {{ cluster_id_tag }} {{ os_svc_network }}"
       when: os_networking_type == "Kuryr"
   
     - name: 'Computing facts for service subnet'
       set_fact:
         first_ip_svc_subnet_range: "{{ svc_subnet_range | ipv4('network') }}"
         last_ip_svc_subnet_range: "{{ svc_subnet_range | ipaddr('last_usable') |ipmath(1) }}"
         first_ip_os_svc_network_range: "{{ os_svc_network_range | ipv4('network') }}"
         last_ip_os_svc_network_range: "{{ os_svc_network_range | ipaddr('last_usable') |ipmath(1) }}"
         allocation_pool: ""
       when: os_networking_type == "Kuryr"
   
     - name: 'Get first part of OpenStack network'
       set_fact:
         allocation_pool: "{{ allocation_pool + '--allocation-pool start={{ first_ip_os_svc_network_range | ipmath(1) }},end={{ first_ip_svc_subnet_range |ipmath(-1) }}' }}"
       when:
       - os_networking_type == "Kuryr"
       - first_ip_svc_subnet_range != first_ip_os_svc_network_range
   
     - name: 'Get last part of OpenStack network'
       set_fact:
         allocation_pool: "{{ allocation_pool + ' --allocation-pool start={{ last_ip_svc_subnet_range | ipmath(1) }},end={{ last_ip_os_svc_network_range |ipmath(-1) }}' }}"
       when:
       - os_networking_type == "Kuryr"
       - last_ip_svc_subnet_range != last_ip_os_svc_network_range
   
     - name: 'Get end of allocation'
       set_fact:
         gateway_ip: "{{ allocation_pool.split('=')[-1] }}"
       when: os_networking_type == "Kuryr"
   
     - name: 'replace last IP'
       set_fact:
         allocation_pool: "{{ allocation_pool | replace(gateway_ip, gateway_ip | ipmath(-1))}}"
       when: os_networking_type == "Kuryr"
   
     - name: 'list service subnet'
       command:
         cmd: "openstack subnet list --name {{ os_svc_subnet }} --tag {{ cluster_id_tag }}"
       when: os_networking_type == "Kuryr"
       register: svc_subnet
   
     - name: 'Create the service subnet'
       command:
         cmd: "openstack subnet create --ip-version 4 --gateway {{ gateway_ip }} --subnet-range {{ os_svc_network_range }} {{ allocation_pool }} --no-dhcp --network {{ os_svc_network }} --tag {{ cluster_id_tag }} {{ os_svc_subnet }}"
       when:
       - os_networking_type == "Kuryr"
       - svc_subnet.stdout == ""
   
     - name: 'list subnet pool'
       command:
         cmd: "openstack subnet pool list --name {{ subnet_pool }} --tags {{ cluster_id_tag }}"
       when: os_networking_type == "Kuryr"
       register: pods_subnet_pool
   
     - name: 'Create pods subnet pool'
       command:
         cmd: "openstack subnet pool create --default-prefix-length {{ host_prefix }} --pool-prefix {{ cluster_network_cidrs }} --tag {{ cluster_id_tag }} {{ subnet_pool }}"
       when:
       - os_networking_type == "Kuryr"
       - pods_subnet_pool.stdout == ""
   
     - name: 'Create external router'
       os_router:
         name: "{{ os_router }}"
         network: "{{ os_external_network }}"
         interfaces:
         - "{{ os_subnet }}"
   
     - name: 'Set external router tag'
       command:
         cmd: "openstack router set --tag {{ cluster_id_tag }} {{ os_router }}"
       when: os_networking_type == "Kuryr"
   
     - name: 'Create the API port'
       os_port:
         name: "{{ os_port_api }}"
         network: "{{ os_network }}"
         security_groups:
         - "{{ os_sg_master }}"
         fixed_ips:
         - subnet: "{{ os_subnet }}"
           ip_address: "{{ os_subnet_range | next_nth_usable(5) }}"
   
     - name: 'Set API port tag'
       command:
         cmd: "openstack port set --tag {{ cluster_id_tag }} {{ os_port_api }}"
   
     - name: 'Create the Ingress port'
       os_port:
         name: "{{ os_port_ingress }}"
         network: "{{ os_network }}"
         security_groups:
         - "{{ os_sg_worker }}"
         fixed_ips:
         - subnet: "{{ os_subnet }}"
           ip_address: "{{ os_subnet_range | next_nth_usable(7) }}"
   
     - name: 'Set the Ingress port tag'
       command:
         cmd: "openstack port set --tag {{ cluster_id_tag }} {{ os_port_ingress }}"
   
     # NOTE: openstack ansible module doesn't allow attaching Floating IPs to
     # ports, let's use the CLI instead
     - name: 'Attach the API floating IP to API port'
       command:
         cmd: "openstack floating ip set --port {{ os_port_api }} {{ os_api_fip }}"
   
     # NOTE: openstack ansible module doesn't allow attaching Floating IPs to
     # ports, let's use the CLI instead
     - name: 'Attach the Ingress floating IP to Ingress port'
       command:
         cmd: "openstack floating ip set --port {{ os_port_ingress }} {{ os_ingress_fip }}"

5. On a command line, create security groups by running the security-groups.yaml playbook:

   $ ansible-playbook -i inventory.yaml security-groups.yaml

6. On a command line, create a network, subnet, and router by running the network.yaml playbook:

   $ ansible-playbook -i inventory.yaml network.yaml

7. Optional: If you want to control the default resolvers that Nova servers use, run the RHOSP CLI command:

   $ openstack subnet set --dns-nameserver <server_1> --dns-nameserver <server_2> "$INFRA_ID-nodes"

Procedure

1. On a command line, change the working directory to the location of the inventory.yaml and common.yaml files.

2. Insert the following content into a local file that is called bootstrap.yaml:

   例 1.5. bootstrap.yaml

   # Required Python packages:
   #
   # ansible
   # openstackclient
   # openstacksdk
   # netaddr
   
   - import_playbook: common.yaml
   
   - hosts: all
     gather_facts: no
   
     tasks:
     - name: 'Create the bootstrap server port'
       os_port:
         name: "{{ os_port_bootstrap }}"
         network: "{{ os_network }}"
         security_groups:
         - "{{ os_sg_master }}"
         allowed_address_pairs:
         - ip_address: "{{ os_subnet_range | next_nth_usable(5) }}"
         - ip_address: "{{ os_subnet_range | next_nth_usable(6) }}"
   
     - name: 'Set bootstrap port tag'
       command:
         cmd: "openstack port set --tag {{ cluster_id_tag }} {{ os_port_bootstrap }}"
   
     - name: 'Create the bootstrap server'
       os_server:
         name: "{{ os_bootstrap_server_name }}"
         image: "{{ os_image_rhcos }}"
         flavor: "{{ os_flavor_master }}"
         userdata: "{{ lookup('file', os_bootstrap_ignition) | string }}"
         auto_ip: no
         nics:
         - port-name: "{{ os_port_bootstrap }}"
   
     - name: 'Create the bootstrap floating IP'
       os_floating_ip:
         state: present
         network: "{{ os_external_network }}"
         server: "{{ os_bootstrap_server_name }}"

3. On a command line, run the playbook:

   $ ansible-playbook -i inventory.yaml bootstrap.yaml

4. After the bootstrap server is active, view the logs to verify that the Ignition files were received:

   $ openstack console log show "$INFRA_ID-bootstrap"

Procedure

1. On a command line, change the working directory to the location of the inventory.yaml and common.yaml files.
2. If the control plane Ignition config files aren’t already in your working directory, copy them into it.

3. Insert the following content into a local file that is called control-plane.yaml:

   例 1.6. control-plane.yaml

   # Required Python packages:
   #
   # ansible
   # openstackclient
   # openstacksdk
   # netaddr
   
   - import_playbook: common.yaml
   
   - hosts: all
     gather_facts: no
   
     tasks:
     - name: 'Create the Control Plane ports'
       os_port:
         name: "{{ item.1 }}-{{ item.0 }}"
         network: "{{ os_network }}"
         security_groups:
         - "{{ os_sg_master }}"
         allowed_address_pairs:
         - ip_address: "{{ os_subnet_range | next_nth_usable(5) }}"
         - ip_address: "{{ os_subnet_range | next_nth_usable(6) }}"
         - ip_address: "{{ os_subnet_range | next_nth_usable(7) }}"
       with_indexed_items: "{{ [os_port_master] * os_cp_nodes_number }}"
       register: ports
   
     - name: 'Set Control Plane ports tag'
       command:
         cmd: "openstack port set --tag {{ cluster_id_tag }} {{ item.1 }}-{{ item.0 }}"
       with_indexed_items: "{{ [os_port_master] * os_cp_nodes_number }}"
   
     - name: 'List the Control Plane Trunks'
       command:
         cmd: "openstack network trunk list"
       when: os_networking_type == "Kuryr"
       register: control_plane_trunks
   
     - name: 'Create the Control Plane trunks'
       command:
         cmd: "openstack network trunk create --parent-port {{ item.1.id }} {{ os_cp_trunk_name }}-{{ item.0 }}"
       with_indexed_items: "{{ ports.results }}"
       when:
       - os_networking_type == "Kuryr"
       - "os_cp_trunk_name|string not in control_plane_trunks.stdout"
   
     - name: 'List the Server groups'
       command:
         cmd: "openstack server group list -f json -c ID -c Name"
       register: server_group_list
   
     - name: 'Parse the Server group ID from existing'
       set_fact:
         server_group_id: "{{ (server_group_list.stdout | from_json | json_query(list_query) | first).ID }}"
       vars:
         list_query: "[?Name=='{{ os_cp_server_group_name }}']"
       when:
       - "os_cp_server_group_name|string in server_group_list.stdout"
   
     - name: 'Create the Control Plane server group'
       command:
         cmd: "openstack --os-compute-api-version=2.15 server group create -f json -c id --policy=soft-anti-affinity {{ os_cp_server_group_name }}"
       register: server_group_created
       when:
       - server_group_id is not defined
   
     - name: 'Parse the Server group ID from creation'
       set_fact:
         server_group_id: "{{ (server_group_created.stdout | from_json).id }}"
       when:
       - server_group_id is not defined
   
     - name: 'Create the Control Plane servers'
       os_server:
         name: "{{ item.1 }}-{{ item.0 }}"
         image: "{{ os_image_rhcos }}"
         flavor: "{{ os_flavor_master }}"
         auto_ip: no
         # The ignition filename will be concatenated with the Control Plane node
         # name and its 0-indexed serial number.
         # In this case, the first node will look for this filename:
         #    "{{ infraID }}-master-0-ignition.json"
         userdata: "{{ lookup('file', [item.1, item.0, 'ignition.json'] | join('-')) | string }}"
         nics:
         - port-name: "{{ os_port_master }}-{{ item.0 }}"
         scheduler_hints:
           group: "{{ server_group_id }}"
       with_indexed_items: "{{ [os_cp_server_name] * os_cp_nodes_number }}"

4. On a command line, run the playbook:

   $ ansible-playbook -i inventory.yaml control-plane.yaml

5. Run the following command to monitor the bootstrapping process:

   $ openshift-install wait-for bootstrap-complete

   You will see messages that confirm that the control plane machines are running and have joined the cluster:

   INFO API v1.14.6+f9b5405 up
   INFO Waiting up to 30m0s for bootstrapping to complete...
   ...
   INFO It is now safe to remove the bootstrap resources

Procedure

1. Export the kubeadmin credentials:

   $ export KUBECONFIG=<installation_directory>/auth/kubeconfig 1

   1

   For <installation_directory>, specify the path to the directory that you stored the installation files in.

2. Verify you can run oc commands successfully using the exported configuration:

   $ oc whoami

   Example output

   system:admin

Procedure

1. Insert the following content into a local file that is called down-bootstrap.yaml:

   例 1.7. down-bootstrap.yaml

   # Required Python packages:
   #
   # ansible
   # openstacksdk
   
   - import_playbook: common.yaml
   
   - hosts: all
     gather_facts: no
   
     tasks:
     - name: 'Remove the bootstrap server'
       os_server:
         name: "{{ os_bootstrap_server_name }}"
         state: absent
         delete_fip: yes
   
     - name: 'Remove the bootstrap server port'
       os_port:
         name: "{{ os_port_bootstrap }}"
         state: absent

2. On a command line, run the playbook:

   $ ansible-playbook -i inventory.yaml down-bootstrap.yaml

Procedure

1. On a command line, change the working directory to the location of the inventory.yaml and common.yaml files.

2. Insert the following content into a local file that is called compute-nodes.yaml:

   例 1.8. compute-nodes.yaml

   # Required Python packages:
   #
   # ansible
   # openstackclient
   # openstacksdk
   # netaddr
   
   - import_playbook: common.yaml
   
   - hosts: all
     gather_facts: no
   
     tasks:
     - name: 'Create the Compute ports'
       os_port:
         name: "{{ item.1 }}-{{ item.0 }}"
         network: "{{ os_network }}"
         security_groups:
         - "{{ os_sg_worker }}"
         allowed_address_pairs:
         - ip_address: "{{ os_subnet_range | next_nth_usable(7) }}"
       with_indexed_items: "{{ [os_port_worker] * os_compute_nodes_number }}"
       register: ports
   
     - name: 'Set Compute ports tag'
       command:
         cmd: "openstack port set --tag {{ cluster_id_tag }} {{ item.1 }}-{{ item.0 }}"
       with_indexed_items: "{{ [os_port_worker] * os_compute_nodes_number }}"
   
     - name: 'List the Compute Trunks'
       command:
         cmd: "openstack network trunk list"
       when: os_networking_type == "Kuryr"
       register: compute_trunks
   
     - name: 'Create the Compute trunks'
       command:
         cmd: "openstack network trunk create --parent-port {{ item.1.id }} {{ os_compute_trunk_name }}-{{ item.0 }}"
       with_indexed_items: "{{ ports.results }}"
       when:
       - os_networking_type == "Kuryr"
       - "os_compute_trunk_name|string not in compute_trunks.stdout"
   
     - name: 'Create the Compute servers'
       os_server:
         name: "{{ item.1 }}-{{ item.0 }}"
         image: "{{ os_image_rhcos }}"
         flavor: "{{ os_flavor_worker }}"
         auto_ip: no
         userdata: "{{ lookup('file', 'worker.ign') | string }}"
         nics:
         - port-name: "{{ os_port_worker }}-{{ item.0 }}"
       with_indexed_items: "{{ [os_compute_server_name] * os_compute_nodes_number }}"

3. On a command line, run the playbook:

   $ ansible-playbook -i inventory.yaml compute-nodes.yaml

Procedure

1. Confirm that the cluster recognizes the machines:

   $ oc get nodes

   Example output

   NAME      STATUS    ROLES   AGE  VERSION
   master-0  Ready     master  63m  v1.18.3
   master-1  Ready     master  63m  v1.18.3
   master-2  Ready     master  64m  v1.18.3
   worker-0  NotReady  worker  76s  v1.18.3
   worker-1  NotReady  worker  70s  v1.18.3

   The output lists all of the machines that you created.

2. Review the pending CSRs and ensure that you see the client requests with the Pending or Approved status for each machine that you added to the cluster:

   $ oc get csr

   Example output

   NAME        AGE     REQUESTOR                                                                   CONDITION
   csr-8b2br   15m     system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
   csr-8vnps   15m     system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
   ...

   In this example, two machines are joining the cluster. You might see more approved CSRs in the list.

3. If the CSRs were not approved, after all of the pending CSRs for the machines you added are in Pending status, approve the CSRs for your cluster machines:

   注意

   Because the CSRs rotate automatically, approve your CSRs within an hour of adding the machines to the cluster. If you do not approve them within an hour, the certificates will rotate, and more than two certificates will be present for each node. You must approve all of these certificates. Once the client CSR is approved, the Kubelet creates a secondary CSR for the serving certificate, which requires manual approval. Then, subsequent serving certificate renewal requests are automatically approved by the machine-approver if the Kubelet requests a new certificate with identical parameters.

   • To approve them individually, run the following command for each valid CSR:

     $ oc adm certificate approve <csr_name> 1

     1

     <csr_name> is the name of a CSR from the list of current CSRs.

   • To approve all pending CSRs, run the following command:

     $ oc get csr -o go-template='{{range .items}}{{if not .status}}{{.metadata.name}}{{"\n"}}{{end}}{{end}}' | xargs --no-run-if-empty oc adm certificate approve

4. Now that your client requests are approved, you must review the server requests for each machine that you added to the cluster:

   $ oc get csr

   Example output

   NAME        AGE     REQUESTOR                                                                   CONDITION
   csr-bfd72   5m26s   system:node:ip-10-0-50-126.us-east-2.compute.internal                       Pending
   csr-c57lv   5m26s   system:node:ip-10-0-95-157.us-east-2.compute.internal                       Pending
   ...

5. If the remaining CSRs are not approved, and are in the Pending status, approve the CSRs for your cluster machines:

   • To approve them individually, run the following command for each valid CSR:

     $ oc adm certificate approve <csr_name> 1

     1

     <csr_name> is the name of a CSR from the list of current CSRs.

   • To approve all pending CSRs, run the following command:

     $ oc get csr -o go-template='{{range .items}}{{if not .status}}{{.metadata.name}}{{"\n"}}{{end}}{{end}}' | xargs oc adm certificate approve

6. After all client and server CSRs have been approved, the machines have the Ready status. Verify this by running the following command:

   $ oc get nodes

   Example output

   NAME      STATUS    ROLES   AGE  VERSION
   master-0  Ready     master  73m  v1.20.0
   master-1  Ready     master  73m  v1.20.0
   master-2  Ready     master  74m  v1.20.0
   worker-0  Ready     worker  11m  v1.20.0
   worker-1  Ready     worker  11m  v1.20.0

   注意

   It can take a few minutes after approval of the server CSRs for the machines to transition to the Ready status.

1. Show the port:

   $ openstack port show <cluster name>-<clusterID>-ingress-port

2. Attach the port to the IP address:

   $ openstack floating ip set --port <ingress port ID> <apps FIP>

3. Add a wildcard A record for *apps. to your DNS file:

   *.apps.<cluster name>.<base domain>  IN  A  <apps FIP>