# useradd kni
# passwd kni
# echo "kni ALL=(root) NOPASSWD:ALL" | tee -a /etc/sudoers.d/kni
# chmod 0440 /etc/sudoers.d/kni
install-config.yaml
fileinstall-config.yaml
file (optional)install-config.yaml
file for no provisioning
network (optional)install-config
parametersinstall-config.yaml
file to use the disconnected registry (optional)With the networking configuration complete, the next step is to install RHEL 8.x on the provisioner node. The installer uses the provisioner node as the orchestrator while installing the OpenShift Container Platform cluster. For the purposes of this document, installing RHEL on the provisioner node is out of scope. However, options include but are not limited to using a RHEL Satellite server, PXE, or installation media.
Perform the following steps to prepare the environment.
Log in to the provisioner node via ssh
.
Create a non-root user (kni
) and provide that user with sudo
privileges.
# useradd kni
# passwd kni
# echo "kni ALL=(root) NOPASSWD:ALL" | tee -a /etc/sudoers.d/kni
# chmod 0440 /etc/sudoers.d/kni
Create an ssh
key for the new user.
# su - kni -c "ssh-keygen -t ed25519 -f /home/kni/.ssh/id_rsa -N ''"
Log in as the new user on the provisioner node.
# su - kni
$
Use Red Hat Subscription Manager to register the provisioner node:
$ sudo subscription-manager register --username=<user> --password=<pass> --auto-attach
$ sudo subscription-manager repos --enable=rhel-8-for-x86_64-appstream-rpms --enable=rhel-8-for-x86_64-baseos-rpms
For more information about Red Hat Subscription Manager, see Using and Configuring Red Hat Subscription Manager. |
Install the following packages.
$ sudo dnf install -y libvirt qemu-kvm mkisofs python3-devel jq ipmitool
Modify the user to add the libvirt
group to the newly created user.
$ sudo usermod --append --groups libvirt <user>
Restart firewalld
and enable the http
service.
$ sudo systemctl start firewalld
$ sudo firewall-cmd --zone=public --add-service=http --permanent
$ sudo firewall-cmd --reload
Start and enable the libvirtd
service.
$ sudo systemctl enable libvirtd --now
Create the default
storage pool and start it.
$ sudo virsh pool-define-as --name default --type dir --target /var/lib/libvirt/images
$ sudo virsh pool-start default
$ sudo virsh pool-autostart default
Configure networking.
This step can also be run from the web console. |
$ export PUB_CONN=<baremetal_nic_name>
$ export PROV_CONN=<prov_nic_name>
$ sudo nohup bash -c "
nmcli con down \"$PROV_CONN\"
nmcli con down \"$PUB_CONN\"
nmcli con delete \"$PROV_CONN\"
nmcli con delete \"$PUB_CONN\"
# RHEL 8.1 appends the word \"System\" in front of the connection, delete in case it exists
nmcli con down \"System $PUB_CONN\"
nmcli con delete \"System $PUB_CONN\"
nmcli connection add ifname provisioning type bridge con-name provisioning
nmcli con add type bridge-slave ifname \"$PROV_CONN\" master provisioning
nmcli connection add ifname baremetal type bridge con-name baremetal
nmcli con add type bridge-slave ifname \"$PUB_CONN\" master baremetal
pkill dhclient;dhclient baremetal
nmcli connection modify provisioning ipv6.addresses fd00:1101::1/64 ipv6.method manual
nmcli con down provisioning
nmcli con up provisioning
"
The The IPv6 address can be any address as long as it is not routable via the Ensure that UEFI is enabled and UEFI PXE settings are set to the IPv6 protocol when using IPv6 addressing. |
Configure the IPv4 address on the provisioning
network connection.
$ nmcli connection modify provisioning ipv4.addresses 172.22.0.254/24 ipv4.method manual
ssh
back into the provisioner
node (if required).
# ssh kni@provisioner.<cluster-name>.<domain>
Verify the connection bridges have been properly created.
$ sudo nmcli con show
NAME UUID TYPE DEVICE
baremetal 4d5133a5-8351-4bb9-bfd4-3af264801530 bridge baremetal
provisioning 43942805-017f-4d7d-a2c2-7cb3324482ed bridge provisioning
virbr0 d9bca40f-eee1-410b-8879-a2d4bb0465e7 bridge virbr0
bridge-slave-eno1 76a8ed50-c7e5-4999-b4f6-6d9014dd0812 ethernet eno1
bridge-slave-eno2 f31c3353-54b7-48de-893a-02d2b34c4736 ethernet eno2
Create a pull-secret.txt
file.
$ vim pull-secret.txt
In a web browser, navigate to Install OpenShift on Bare Metal with installer-provisioned infrastructure, and scroll down to the Downloads section. Click Copy pull secret. Paste the contents into the pull-secret.txt
file and save the contents in the kni
user’s home directory.
Use the latest-4.x
version of the installer to deploy the latest generally
available version of OpenShift Container Platform:
$ export VERSION=latest-4.6
export RELEASE_IMAGE=$(curl -s https://mirror.openshift.com/pub/openshift-v4/clients/ocp/$VERSION/release.txt | grep 'Pull From: quay.io' | awk -F ' ' '{print $3}')
See OpenShift Container Platform upgrade channels and releases for an explanation of the different release channels.
After retrieving the installer, the next step is to extract it.
Set the environment variables:
$ export cmd=openshift-baremetal-install
$ export pullsecret_file=~/pull-secret.txt
$ export extract_dir=$(pwd)
Get the oc
binary:
$ curl -s https://mirror.openshift.com/pub/openshift-v4/clients/ocp/$VERSION/openshift-client-linux.tar.gz | tar zxvf - oc
Extract the installer:
$ sudo cp oc /usr/local/bin
$ oc adm release extract --registry-config "${pullsecret_file}" --command=$cmd --to "${extract_dir}" ${RELEASE_IMAGE}
$ sudo cp openshift-baremetal-install /usr/local/bin
To employ image caching, you must download two images: the Red Hat Enterprise Linux CoreOS (RHCOS) image used by the bootstrap VM and the RHCOS image used by the installer to provision the different nodes. Image caching is optional, but especially useful when running the installer on a network with limited bandwidth.
If you are running the installer on a network with limited bandwidth and the RHCOS images download takes more than 15 to 20 minutes, the installer will timeout. Caching images on a web server will help in such scenarios.
Use the following steps to install a container that contains the images.
Install podman
.
$ sudo dnf install -y podman
Open firewall port 8080
to be used for RHCOS image caching.
$ sudo firewall-cmd --add-port=8080/tcp --zone=public --permanent
$ sudo firewall-cmd --reload
Create a directory to store the bootstraposimage
and clusterosimage
.
$ mkdir /home/kni/rhcos_image_cache
Set the appropriate SELinux context for the newly created directory.
$ sudo semanage fcontext -a -t httpd_sys_content_t "/home/kni/rhcos_image_cache(/.*)?"
$ sudo restorecon -Rv rhcos_image_cache/
Get the commit ID from the installer. The ID determines which images the installer needs to download.
$ export COMMIT_ID=$(/usr/local/bin/openshift-baremetal-install version | grep '^built from commit' | awk '{print $4}')
Get the URI for the RHCOS image that the installer will deploy on the nodes.
$ export RHCOS_OPENSTACK_URI=$(curl -s -S https://raw.githubusercontent.com/openshift/installer/$COMMIT_ID/data/data/rhcos.json | jq .images.openstack.path | sed 's/"//g')
Get the URI for the RHCOS image that the installer will deploy on the bootstrap VM.
$ export RHCOS_QEMU_URI=$(curl -s -S https://raw.githubusercontent.com/openshift/installer/$COMMIT_ID/data/data/rhcos.json | jq .images.qemu.path | sed 's/"//g')
Get the path where the images are published.
$ export RHCOS_PATH=$(curl -s -S https://raw.githubusercontent.com/openshift/installer/$COMMIT_ID/data/data/rhcos.json | jq .baseURI | sed 's/"//g')
Get the SHA hash for the RHCOS image that will be deployed on the bootstrap VM.
$ export RHCOS_QEMU_SHA_UNCOMPRESSED=$(curl -s -S https://raw.githubusercontent.com/openshift/installer/$COMMIT_ID/data/data/rhcos.json | jq -r '.images.qemu["uncompressed-sha256"]')
Get the SHA hash for the RHCOS image that will be deployed on the nodes.
$ export RHCOS_OPENSTACK_SHA_COMPRESSED=$(curl -s -S https://raw.githubusercontent.com/openshift/installer/$COMMIT_ID/data/data/rhcos.json | jq -r '.images.openstack.sha256')
Download the images and place them in the /home/kni/rhcos_image_cache
directory.
$ curl -L ${RHCOS_PATH}${RHCOS_QEMU_URI} -o /home/kni/rhcos_image_cache/${RHCOS_QEMU_URI}
$ curl -L ${RHCOS_PATH}${RHCOS_OPENSTACK_URI} -o /home/kni/rhcos_image_cache/${RHCOS_OPENSTACK_URI}
Confirm SELinux type is of httpd_sys_content_t
for the newly created files.
$ ls -Z /home/kni/rhcos_image_cache
Create the pod.
$ podman run -d --name rhcos_image_cache \
-v /home/kni/rhcos_image_cache:/var/www/html \
-p 8080:8080/tcp \
quay.io/centos7/httpd-24-centos7:latest
install-config.yaml
fileThe install-config.yaml
file requires some additional details.
Most of the information is teaching the installer and the resulting cluster enough about the available hardware so that it is able to fully manage it.
Configure install-config.yaml
. Change the appropriate variables to match the environment, including pullSecret
and sshKey
.
apiVersion: v1
baseDomain: <domain>
metadata:
name: <cluster-name>
networking:
machineCIDR: <public-cidr>
networkType: OVNKubernetes
compute:
- name: worker
replicas: 2 (1)
controlPlane:
name: master
replicas: 3
platform:
baremetal: {}
platform:
baremetal:
apiVIP: <api-ip>
ingressVIP: <wildcard-ip>
provisioningNetworkInterface: <NIC1>
provisioningNetworkCIDR: <CIDR>
hosts:
- name: openshift-master-0
role: master
bmc:
address: ipmi://<out-of-band-ip> (2)
username: <user>
password: <password>
bootMACAddress: <NIC1-mac-address>
hardwareProfile: default
- name: <openshift-master-1>
role: master
bmc:
address: ipmi://<out-of-band-ip> (2)
username: <user>
password: <password>
bootMACAddress: <NIC1-mac-address>
hardwareProfile: default
- name: <openshift-master-2>
role: master
bmc:
address: ipmi://<out-of-band-ip> (2)
username: <user>
password: <password>
bootMACAddress: <NIC1-mac-address>
hardwareProfile: default
- name: <openshift-worker-0>
role: worker
bmc:
address: ipmi://<out-of-band-ip> (2)
username: <user>
password: <password>
bootMACAddress: <NIC1-mac-address>
hardwareProfile: unknown
- name: <openshift-worker-1>
role: worker
bmc:
address: ipmi://<out-of-band-ip>
username: <user>
password: <password>
bootMACAddress: <NIC1-mac-address>
hardwareProfile: unknown
pullSecret: '<pull_secret>'
sshKey: '<ssh_pub_key>'
1 | Scale the worker machines based on the number of worker nodes that are part of the OpenShift Container Platform cluster. |
2 | Refer to the BMC addressing sections for more options. |
Create a directory to store cluster configs.
$ mkdir ~/clusterconfigs
$ cp install-config.yaml ~/clusterconfigs
Ensure all bare metal nodes are powered off prior to installing the OpenShift Container Platform cluster.
$ ipmitool -I lanplus -U <user> -P <password> -H <management-server-ip> power off
Remove old bootstrap resources if any are left over from a previous deployment attempt.
for i in $(sudo virsh list | tail -n +3 | grep bootstrap | awk {'print $2'});
do
sudo virsh destroy $i;
sudo virsh undefine $i;
sudo virsh vol-delete $i --pool $i;
sudo virsh vol-delete $i.ign --pool $i;
sudo virsh pool-destroy $i;
sudo virsh pool-undefine $i;
done
install-config.yaml
file (optional)To deploy an OpenShift Container Platform cluster using a proxy, make the following changes to the install-config.yaml
file.
apiVersion: v1
baseDomain: <domain>
proxy:
httpProxy: http://userNAME:PASSWORD@proxy.example.com:PORT
httpsProxy: https://userNAME:PASSWORD@proxy.example.com:PORT
noProxy: <WILDCARD_OF_DOMAIN>,<PROVISIONING_NETWORK/CIDR>,<BMC_ADDRESS_RANGE/CIDR>
The following is an example of noProxy
with values.
noProxy: .example.com,172.22.0.0/24,10.10.0.0/24
With a proxy enabled, set the appropriate values of the proxy in the corresponding key/value pair.
Key considerations:
If the proxy does not have an HTTPS proxy, change the value of httpsProxy
from https://
to http://
.
If using a provisioning network, include it in the noProxy
setting, otherwise the installer will fail.
Set all of the proxy settings as environment variables within the provisioner node. For example, HTTP_PROXY
, HTTPS_PROXY
, and NO_PROXY
.
When provisioning with IPv6, you cannot define a CIDR address block in the |
install-config.yaml
file for no provisioning
network (optional)To deploy an OpenShift Container Platform cluster without a provisioning
network, make the following changes to the install-config.yaml
file.
platform:
baremetal:
apiVIP: <apiVIP>
ingressVIP: <ingress/wildcard VIP>
provisioningNetwork: "Disabled"
provisioningHostIP: <baremetal_network_IP1>
bootstrapProvisioningIP: <baremetal_network_IP2>
Requires providing two IP addresses from the |
install-config
parametersSee the following tables for the required parameters, the hosts
parameter,
and the bmc
parameter for the install-config.yaml
file.
Parameters | Default | Description |
---|---|---|
The domain name for the cluster. For example, |
||
The |
||
The |
||
metadata: name: |
The name to be given to the OpenShift Container Platform cluster. For example, |
|
networking: machineCIDR: |
The public CIDR (Classless Inter-Domain Routing) of the external network. For example, |
|
compute: - name: worker |
The OpenShift Container Platform cluster requires a name be provided for worker (or compute) nodes even if there are zero nodes. |
|
compute: replicas: 2 |
Replicas sets the number of worker (or compute) nodes in the OpenShift Container Platform cluster. |
|
controlPlane: name: master |
The OpenShift Container Platform cluster requires a name for control plane (master) nodes. |
|
controlPlane: replicas: 3 |
Replicas sets the number of control plane (master) nodes included as part of the OpenShift Container Platform cluster. |
|
The name of the network interface on control plane nodes connected to the provisioning network. |
||
|
The default configuration used for machine pools without a platform configuration. |
|
|
The VIP to use for internal API communication. This setting must either be provided or pre-configured in the DNS so that the default name resolves correctly. |
|
|
|
|
|
The VIP to use for ingress traffic. |
Parameters | Default | Description |
---|---|---|
|
|
Defines the IP range for nodes on the |
|
|
The CIDR for the network to use for provisioning. This option is required when not using the default address range on the |
|
The third IP address of the |
The IP address within the cluster where the provisioning services run. Defaults to the third IP address of the |
|
The second IP address of the |
The IP on the bootstrap VM where the provisioning services run while the installer is deploying the control plane (master) nodes. Defaults to the second IP of the When using no |
|
|
The name of the |
|
|
The name of the |
|
The default configuration used for machine pools without a platform configuration. |
|
|
A URL to override the default operating system image for the bootstrap node. The URL must contain a SHA-256 hash of the image. For example:
|
|
|
A URL to override the default operating system for cluster nodes. The URL must include a SHA-256 hash of the image. For example, |
|
|
Set this parameter to Set this parameter to |
|
|
Set this parameter to an available IP address on the |
|
|
Set this parameter to the appropriate HTTP proxy used within your environment. |
|
|
Set this parameter to the appropriate HTTPS proxy used within your environment. |
|
|
Set this parameter to the appropriate list of exclusions for proxy usage within your environment. |
The hosts
parameter is a list of separate bare metal assets used to build the cluster.
Name |
Default |
Description |
The name of the |
||
The role of the bare metal node. Either |
||
|
Connection details for the baseboard management controller. See the BMC addressing section for additional details. |
|
The MAC address of the NIC the host will use to boot on the |
The address
field for each bmc
entry is a URL for connecting to the OpenShift Container Platform cluster nodes, including the type of controller in the URL scheme and its location on the network.
IPMI hosts use ipmi://<out-of-band-ip>:<port>
and defaults to port 623
if not specified. The following example demonstrates an IPMI configuration within the install-config.yaml
file.
platform:
baremetal:
hosts:
- name: openshift-master-0
role: master
bmc:
address: ipmi://<out-of-band-ip>
username: <user>
password: <password>
To enable RedFish, use redfish://
or redfish+http://
to disable TLS. The installer requires both the hostname or the IP address and the path to the system ID. The following example demonstrates a RedFish configuration within the install-config.yaml
file.
platform:
baremetal:
hosts:
- name: openshift-master-0
role: master
bmc:
address: redfish://<out-of-band-ip>/redfish/v1/Systems/1
username: <user>
password: <password>
While it is recommended to have a certificate of authority for the
out-of-band management addresses, you must include disableCertificateVerification: True
in the bmc
configuration if using self-signed certificates. The following example demonstrates a RedFish configuration using the disableCertificateVerification: True
configuration parameter within the install-config.yaml
file.
platform:
baremetal:
hosts:
- name: openshift-master-0
role: master
bmc:
address: redfish://<out-of-band-ip>/redfish/v1/Systems/1
username: <user>
password: <password>
disableCertificateVerification: True
To enable RedFish, use redfish://
or redfish+http://
to disable TLS. The installer requires both the hostname or the IP address and the path to the system ID. The following example demonstrates a RedFish configuration within the install-config.yaml
file.
platform:
baremetal:
hosts:
- name: openshift-master-0
role: master
bmc:
address: redfish://<out-of-band-ip>/redfish/v1/Systems/System.Embedded.1
username: <user>
password: <password>
While it is recommended to have a certificate of authority for the
out-of-band management addresses, you must include disableCertificateVerification: True
in the bmc
configuration if using self-signed certificates. The following example demonstrates a RedFish configuration using the disableCertificateVerification: True
configuration parameter within the install-config.yaml
file.
platform:
baremetal:
hosts:
- name: openshift-master-0
role: master
bmc:
address: redfish://<out-of-band-ip>/redfish/v1/Systems/System.Embedded.1
username: <user>
password: <password>
disableCertificateVerification: True
Currently RedFish is only supported on Dell with iDRAC firmware version |
To enable RedFish Virtual Media for HPE servers, use redfish-virtualmedia://
in the address
setting. The following example demonstrates using RedFish Virtual Media within the install-config.yaml
file.
platform:
baremetal:
hosts:
- name: openshift-master-0
role: master
bmc:
address: redfish-virtualmedia://<out-of-band-ip>/redfish/v1/Systems/1
username: <user>
password: <password>
For RedFish Virtual Media on Dell servers, use idrac-virtualmedia://
in the address
setting.
RedFish Virtual Media on Dell servers has a known issue in OpenShift Container Platform 4.6. The 4.6.1 point release will resolve the issue. |
The following example demonstrates using iDRAC Virtual Media within the install-config.yaml
file.
platform:
baremetal:
hosts:
- name: openshift-master-0
role: master
bmc:
address: idrac-virtualmedia://<out-of-band-ip>/redfish/v1/Systems/System.Embedded.1
username: <user>
password: <password>
Ensure the OpenShift Container Platform cluster nodes have AutoAttach Enabled through the iDRAC console. The menu path is: Configuration→Virtual Media→Attach Mode→AutoAttach. |
The rootDeviceHints
parameter enables the installer to provision the Red Hat Enterprise Linux CoreOS (RHCOS) image to a particular device. The installer examines the devices in the order it discovers them, and compares the discovered values with the hint values. The installer uses the first discovered device that matches the hint value. The configuration can combine multiple hints, but a device must match all hints for the installer to select it.
Subfield | Description |
---|---|
|
A string containing a Linux device name like |
|
A string containing a SCSI bus address like |
|
A string containing a vendor-specific device identifier. The hint can be a substring of the actual value. |
|
A string containing the name of the vendor or manufacturer of the device. The hint can be a sub-string of the actual value. |
|
A string containing the device serial number. The hint must match the actual value exactly. |
|
An integer representing the minimum size of the device in gigabytes. |
|
A string containing the unique storage identifier. The hint must match the actual value exactly. |
|
A string containing the unique storage identifier with the vendor extension appended. The hint must match the actual value exactly. |
|
A string containing the unique vendor storage identifier. The hint must match the actual value exactly. |
|
A boolean indicating whether the device should be a rotating disk (true) or not (false). |
- name: master-0
role: master
bmc:
address: ipmi://10.10.0.3:6203
username: admin
password: redhat
bootMACAddress: de:ad:be:ef:00:40
rootDeviceHints:
deviceName: "/dev/sda"
Create the OpenShift Container Platform manifests.
$ ./openshift-baremetal-install --dir ~/clusterconfigs create manifests
INFO Consuming Install Config from target directory
WARNING Making control-plane schedulable by setting MastersSchedulable to true for Scheduler cluster settings
WARNING Discarding the OpenShift Manifest that was provided in the target directory because its dependencies are dirty and it needs to be regenerated
In some cases, you might want to install an OpenShift KNI cluster using a local copy of the installation registry. This could be for enhancing network efficiency because the cluster nodes are on a network that does not have access to the internet.
A local, or mirrored, copy of the registry requires the following:
A certificate for the registry node. This can be a self-signed certificate.
A webserver - this will be served by a container on a system.
An updated pull secret that contains the certificate and local repository information.
Creating a disconnected registry on a registry node is optional. The subsequent sections indicate that they are optional since they are steps you need to execute only when creating a disconnected registry on a registry node. You should execute all of the subsequent sub-sections labeled "(optional)" when creating a disconnected registry on a registry node. |
Make the following changes to the registry node.
Open the firewall port on the registry node.
$ sudo firewall-cmd --add-port=5000/tcp --zone=libvirt --permanent
$ sudo firewall-cmd --add-port=5000/tcp --zone=public --permanent
$ sudo firewall-cmd --reload
Install the required packages for the registry node.
$ sudo yum -y install python3 podman httpd httpd-tools jq
Create the directory structure where the repository information will be held.
$ sudo mkdir -p /opt/registry/{auth,certs,data}
Generate a self-signed certificate for the registry node and put it in the /opt/registry/certs
directory.
Adjust the certificate information as appropriate.
$ host_fqdn=$( hostname --long )
$ cert_c="<Country Name>" # Country Name (C, 2 letter code)
$ cert_s="<State>" # Certificate State (S)
$ cert_l="<Locality>" # Certificate Locality (L)
$ cert_o="<Organization>" # Certificate Organization (O)
$ cert_ou="<Org Unit>" # Certificate Organizational Unit (OU)
$ cert_cn="${host_fqdn}" # Certificate Common Name (CN)
$ openssl req \
-newkey rsa:4096 \
-nodes \
-sha256 \
-keyout /opt/registry/certs/domain.key \
-x509 \
-days 365 \
-out /opt/registry/certs/domain.crt \
-addext "subjectAltName = DNS:${host_fqdn}" \
-subj "/C=${cert_c}/ST=${cert_s}/L=${cert_l}/O=${cert_o}/OU=${cert_ou}/CN=${cert_cn}"
When replacing <Country Name> , ensure that it only contains two letters. For example, US .
|
Update the registry node’s ca-trust
with the new certificate.
$ sudo cp /opt/registry/certs/domain.crt /etc/pki/ca-trust/source/anchors/
$ sudo update-ca-trust extract
The registry container uses the /opt/registry
directory for certificates, authentication files, and to store its data files.
The registry container uses httpd
and needs an htpasswd
file for authentication.
Create an htpasswd
file in /opt/registry/auth
for the container to use.
$ htpasswd -bBc /opt/registry/auth/htpasswd <user> <passwd>
Replace <user>
with the user name and <passwd>
with the password.
Create and start the registry container.
$ podman create \
--name ocpdiscon-registry \
-p 5000:5000 \
-e "REGISTRY_AUTH=htpasswd" \
-e "REGISTRY_AUTH_HTPASSWD_REALM=Registry" \
-e "REGISTRY_HTTP_SECRET=ALongRandomSecretForRegistry" \
-e "REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd" \
-e "REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt" \
-e "REGISTRY_HTTP_TLS_KEY=/certs/domain.key" \
-e "REGISTRY_COMPATIBILITY_SCHEMA1_ENABLED=true" \
-v /opt/registry/data:/var/lib/registry:z \
-v /opt/registry/auth:/auth:z \
-v /opt/registry/certs:/certs:z \
docker.io/library/registry:2
$ podman start ocpdiscon-registry
Copy the pull secret file from the provisioner node to the registry node and modify it to include the authentication information for the new registry node.
Copy the pull-secret.txt
file.
$ scp kni@provisioner:/home/kni/pull-secret.txt pull-secret.txt
Update the host_fqdn
environment variable with the fully qualified domain name of the registry node.
$ host_fqdn=$( hostname --long )
Update the b64auth
environment variable with the base64 encoding of the http
credentials used to create the htpasswd
file.
$ b64auth=$( echo -n '<username>:<passwd>' | openssl base64 )
Replace <username>
with the user name and <passwd>
with the password.
Set the AUTHSTRING
environment variable to use the base64
authorization string. The $user
variable is an environment variable containing the name of the current user.
$ AUTHSTRING="{\"$host_fqdn:5000\": {\"auth\": \"$b64auth\",\"email\": \"$user@redhat.com\"}}"
Update the pull-secret.txt
file.
$ jq ".auths += $AUTHSTRING" < pull-secret.txt > pull-secret-update.txt
Copy the oc
binary from the provisioner node to the registry node.
$ sudo scp kni@provisioner:/usr/local/bin/oc /usr/local/bin
Set the required environment variables.
Set the release version:
$ VERSION=<release_version>
For <release_version>
, specify the tag that corresponds to the version of OpenShift Container Platform to install, such as 4.6
.
Set the local registry name and host port:
$ LOCAL_REG='<local_registry_host_name>:<local_registry_host_port>'
For <local_registry_host_name>
, specify the registry domain name for your mirror
repository, and for <local_registry_host_port>
, specify the port that it
serves content on.
Set the local repository name:
$ LOCAL_REPO='<local_repository_name>'
For <local_repository_name>
, specify the name of the repository to create in your
registry, such as ocp4/openshift4
.
Mirror the remote install images to the local repository.
$ /usr/local/bin/oc adm release mirror \
-a pull-secret-update.txt \
--from=$UPSTREAM_REPO \
--to-release-image=$LOCAL_REG/$LOCAL_REPO:${VERSION} \
--to=$LOCAL_REG/$LOCAL_REPO
install-config.yaml
file to use the disconnected registry (optional)On the provisioner node, the install-config.yaml
file should use the newly created pull-secret from the pull-secret-update.txt
file. The install-config.yaml
file must also contain the disconnected registry node’s certificate and registry information.
Add the disconnected registry node’s certificate to the install-config.yaml
file. The certificate should follow the "additionalTrustBundle: |"
line and be properly indented, usually by two spaces.
$ echo "additionalTrustBundle: |" >> install-config.yaml
$ sed -e 's/^/ /' /opt/registry/certs/domain.crt >> install-config.yaml
Add the mirror information for the registry to the install-config.yaml
file.
$ echo "imageContentSources:" >> install-config.yaml
$ echo "- mirrors:" >> install-config.yaml
$ echo " - registry.example.com:5000/ocp4/openshift4" >> install-config.yaml
$ echo " source: quay.io/openshift-release-dev/ocp-release" >> install-config.yaml
$ echo "- mirrors:" >> install-config.yaml
$ echo " - registry.example.com:5000/ocp4/openshift4" >> install-config.yaml
$ echo " source: quay.io/openshift-release-dev/ocp-v4.0-art-dev" >> install-config.yaml
Replace registry.example.com with the registry’s fully qualified domain name.
|
During installation, the installer deploys router pods on worker nodes. By default, the installer installs two router pods. If the initial cluster has only one worker node, or if a deployed cluster requires additional routers to handle external traffic loads destined for services within the OpenShift Container Platform cluster, you can create a yaml
file to set an appropriate number of router replicas.
By default, the installer deploys two routers. If the cluster has at least two worker nodes, you can skip this section. For more information on the Ingress Operator see: Ingress Operator in OpenShift Container Platform. |
If the cluster has no worker nodes, the installer deploys the two routers on the control plane nodes by default. If the cluster has no worker nodes, you can skip this section. |
Create a router-replicas.yaml
file.
apiVersion: operator.openshift.io/v1
kind: IngressController
metadata:
name: default
namespace: openshift-ingress-operator
spec:
replicas: <num-of-router-pods>
endpointPublishingStrategy:
type: HostNetwork
nodePlacement:
nodeSelector:
matchLabels:
node-role.kubernetes.io/worker: ""
Replace |
Save and copy the router-replicas.yaml
file to the clusterconfigs/openshift
directory.
cp ~/router-replicas.yaml clusterconfigs/openshift/99_router-replicas.yaml
OpenShift Container Platform installer has been retrieved.
OpenShift Container Platform installer has been extracted.
Required parameters for the install-config.yaml
have been configured.
The hosts
parameter for the install-config.yaml
has been configured.
The bmc
parameter for the install-config.yaml
has been configured.
Conventions for the values configured in the bmc
address
field have been applied.
Created a disconnected registry (optional).
(optional) Validate disconnected registry settings if in use.
(optional) Deployed routers on worker nodes.
Run the OpenShift Container Platform installer:
$ ./openshift-baremetal-install --dir ~/clusterconfigs --log-level debug create cluster
During the deployment process, you can check the installation’s overall status by issuing the tail
command to the .openshift_install.log
log file in the install directory folder.
$ tail -f /path/to/install-dir/.openshift_install.log
Before you reinstall a cluster on bare metal, you must perform cleanup operations.
Remove or reformat the disks for the bootstrap, control plane (also known as master) node, and worker nodes. If you are working in a hypervisor environment, you must add any disks you removed.
Delete the artifacts that the previous installation generated:
$ cd ; /bin/rm -rf auth/ bootstrap.ign master.ign worker.ign metadata.json \
.openshift_install.log .openshift_install_state.json
Generate new manifests and Ignition config files. See “Creating the Kubernetes manifest and Ignition config files" for more information.
Upload the new bootstrap, control plane, and compute node Ignition config files that the installation program created to your HTTP server. This will overwrite the previous Ignition files.