The steps for performing a user-provided infrastructure install are outlined here. Several Deployment Manager templates are provided to assist in completing these steps or to help model your own. You are also free to create the required resources through other methods; the templates are just an example.
- all prerequisites from README
- the following binaries installed and in $PATH:
- gcloud
- gsutil
- gcloud authenticated to an account with additional roles:
- Deployment Manager Editor
- Service Account Key Admin
- the following API Services enabled:
- Cloud Deployment Manager V2 API (deploymentmanager.googleapis.com)
The machines will be started manually. Therefore, it is required to generate the bootstrap and machine Ignition configs and store them for later steps. Use a staged install to enable desired customizations.
Create an install configuration as for the usual approach.
If you are installing into a Shared VPC (XPN),
skip this step and create the install-config.yaml
manually using the documentation references/examples.
The installer will not be able to access the public DNS zone in the host project for the base domain prompt.
$ openshift-install create install-config
? SSH Public Key /home/user_id/.ssh/id_rsa.pub
? Platform gcp
? Project ID example-project
? Region us-east1
? Base Domain example.com
? Cluster Name openshift
? Pull Secret [? for help]
If you do not want the cluster to provision compute machines, edit the resulting install-config.yaml
to set replicas
to 0 for the compute
pool.
python -c '
import yaml;
path = "install-config.yaml";
data = yaml.full_load(open(path));
data["compute"][0]["replicas"] = 0;
open(path, "w").write(yaml.dump(data, default_flow_style=False))'
compute:
- architecture: amd64
hyperthreading: Enabled
name: worker
platform: {}
replicas: 0
If you want to provision a private cluster, edit the resulting install-config.yaml
to set publish
to Internal
.
If you are installing into a Shared VPC (XPN),
publish
must be set to Internal
.
The installer will not be able to access the public DNS zone for the the base domain in the host project, which is required for External clusters.
This can be reversed in a step below.
python -c '
import yaml;
path = "install-config.yaml";
data = yaml.full_load(open(path));
data["publish"] = "Internal";
open(path, "w").write(yaml.dump(data, default_flow_style=False))'
publish: Internal
Create manifest to enable customizations which are not exposed via the install configuration.
$ openshift-install create manifests
INFO Consuming "Install Config" from target directory
Remove the control plane machines from the manifests. We'll be providing those ourselves and don't want to involve the machine-API operator.
rm -f openshift/99_openshift-cluster-api_master-machines-*.yaml
If you do not want the cluster to provision compute machines, remove the compute machinesets from the manifests as well.
rm -f openshift/99_openshift-cluster-api_worker-machineset-*.yaml
Currently emptying the compute pools makes control-plane nodes schedulable. But due to a Kubernetes limitation, router pods running on control-plane nodes will not be reachable by the ingress load balancer. Update the scheduler configuration to keep router pods and other workloads off the control-plane nodes:
python -c '
import yaml;
path = "manifests/cluster-scheduler-02-config.yml";
data = yaml.full_load(open(path));
data["spec"]["mastersSchedulable"] = False;
open(path, "w").write(yaml.dump(data, default_flow_style=False))'
spec:
mastersSchedulable: false
If you don't want the ingress operator to create DNS records on your behalf, remove the privateZone
and publicZone
sections from the DNS configuration.
If you do so, you'll need to add ingress DNS records manually later on.
If you are installing into a Shared VPC (XPN),
remove the privateZone
section from the DNS configuration.
The publicZone
will not exist because of publish: Internal
in install-config.yaml
.
Remove the publicZone
line from the command to avoid an error.
python -c '
import yaml;
path = "manifests/cluster-dns-02-config.yml";
data = yaml.full_load(open(path));
del data["spec"]["publicZone"];
del data["spec"]["privateZone"];
open(path, "w").write(yaml.dump(data, default_flow_style=False))'
spec:
baseDomain: example.com
Update the cloud-provider manifest (Shared VPC (XPN) only)
If you are installing into a Shared VPC (XPN), update the cloud provider configuration so it understands the network and subnetworks are in a different project (host project). Otherwise skip this step.
export HOST_PROJECT="example-shared-vpc"
export HOST_PROJECT_NETWORK_NAME="example-network"
export HOST_PROJECT_COMPUTE_SUBNET_NAME="example-worker-subnet"
sed -i "s/ subnetwork-name.*/ network-project-id = ${HOST_PROJECT}\\n network-name = ${HOST_PROJECT_NETWORK_NAME}\\n subnetwork-name = ${HOST_PROJECT_COMPUTE_SUBNET_NAME}/" manifests/cloud-provider-config.yaml
config: |+
[global]
project-id = example-project
regional = true
multizone = true
node-tags = opensh-ptzzx-master
node-tags = opensh-ptzzx-worker
node-instance-prefix = opensh-ptzzx
external-instance-groups-prefix = opensh-ptzzx
network-project-id = example-shared-vpc
network-name = example-network
subnetwork-name = example-worker-subnet
If you are installing into a Shared VPC (XPN),
and you set publish: Internal
in the install-config.yaml
but really wanted publish: External
then edit the cluster-ingress-default-ingresscontroller.yaml
manifest to enable external ingress.
python -c '
import yaml;
path = "manifests/cluster-ingress-default-ingresscontroller.yaml";
data = yaml.full_load(open(path));
data["spec"]["endpointPublishingStrategy"]["loadBalancer"]["scope"] = "External";
open(path, "w").write(yaml.dump(data, default_flow_style=False))'
spec:
endpointPublishingStrategy:
loadBalancer:
scope: External
Now we can create the bootstrap Ignition configs.
$ openshift-install create ignition-configs
After running the command, several files will be available in the directory.
$ tree
.
├── auth
│ └── kubeconfig
├── bootstrap.ign
├── master.ign
├── metadata.json
└── worker.ign
By default, Ignition generates a unique cluster identifier comprised of the
cluster name specified during the invocation of the installer and a short
string known internally as the infrastructure name. These values are seeded
in the initial manifests within the Ignition configuration. To use the output
of the default, generated ignition-configs
extracting the internal
infrastructure name is necessary.
An example of a way to get this is below:
$ jq -r .infraID metadata.json
openshift-vw9j6
export BASE_DOMAIN='example.com'
export BASE_DOMAIN_ZONE_NAME='example'
export NETWORK_CIDR='10.0.0.0/16'
export MASTER_SUBNET_CIDR='10.0.0.0/19'
export WORKER_SUBNET_CIDR='10.0.32.0/19'
export KUBECONFIG=auth/kubeconfig
export CLUSTER_NAME=$(jq -r .clusterName metadata.json)
export INFRA_ID=$(jq -r .infraID metadata.json)
export PROJECT_NAME=$(jq -r .gcp.projectID metadata.json)
export REGION=$(jq -r .gcp.region metadata.json)
export ZONE_0=$(gcloud compute regions describe ${REGION} --format=json | jq -r .zones[0] | cut -d "/" -f9)
export ZONE_1=$(gcloud compute regions describe ${REGION} --format=json | jq -r .zones[1] | cut -d "/" -f9)
export ZONE_2=$(gcloud compute regions describe ${REGION} --format=json | jq -r .zones[2] | cut -d "/" -f9)
export MASTER_IGNITION=$(cat master.ign)
export WORKER_IGNITION=$(cat worker.ign)
Create the VPC, network, and subnets for the cluster. This step can be skipped if installing into a pre-existing VPC, such as a Shared VPC (XPN).
Copy 01_vpc.py
locally.
Create a resource definition file: 01_vpc.yaml
$ cat <<EOF >01_vpc.yaml
imports:
- path: 01_vpc.py
resources:
- name: cluster-vpc
type: 01_vpc.py
properties:
infra_id: '${INFRA_ID}'
region: '${REGION}'
master_subnet_cidr: '${MASTER_SUBNET_CIDR}'
worker_subnet_cidr: '${WORKER_SUBNET_CIDR}'
EOF
infra_id
: the infrastructure name (INFRA_ID above)region
: the region to deploy the cluster into (for example us-east1)master_subnet_cidr
: the CIDR for the master subnet (for example 10.0.0.0/19)worker_subnet_cidr
: the CIDR for the worker subnet (for example 10.0.32.0/19)
Create the deployment using gcloud.
gcloud deployment-manager deployments create ${INFRA_ID}-vpc --config 01_vpc.yaml
Configure the variables based on the VPC created with 01_vpc.yaml
.
If you are using a pre-existing VPC, such as a Shared VPC (XPN), set these to the .selfLink
of the targeted resources.
export CLUSTER_NETWORK=$(gcloud compute networks describe ${INFRA_ID}-network --format json | jq -r .selfLink)
export CONTROL_SUBNET=$(gcloud compute networks subnets describe ${INFRA_ID}-master-subnet --region=${REGION} --format json | jq -r .selfLink)
export COMPUTE_SUBNET=$(gcloud compute networks subnets describe ${INFRA_ID}-worker-subnet --region=${REGION} --format json | jq -r .selfLink)
Create the DNS zone and load balancers for the cluster.
You can exclude the DNS zone or external load balancer by removing their associated section(s) from the 02_infra.yaml
.
If you choose to exclude the DNS zone, you will need to create it some other way and ensure it is populated with the necessary records as documented below.
If you are installing into a Shared VPC (XPN), exclude the DNS section as it must be created in the host project.
Copy 02_dns.py
locally.
Copy 02_lb_ext.py
locally.
Copy 02_lb_int.py
locally.
Create a resource definition file: 02_infra.yaml
$ cat <<EOF >02_infra.yaml
imports:
- path: 02_dns.py
- path: 02_lb_ext.py
- path: 02_lb_int.py
resources:
- name: cluster-dns
type: 02_dns.py
properties:
infra_id: '${INFRA_ID}'
cluster_domain: '${CLUSTER_NAME}.${BASE_DOMAIN}'
cluster_network: '${CLUSTER_NETWORK}'
- name: cluster-lb-ext
type: 02_lb_ext.py
properties:
infra_id: '${INFRA_ID}'
region: '${REGION}'
- name: cluster-lb-int
type: 02_lb_int.py
properties:
cluster_network: '${CLUSTER_NETWORK}'
control_subnet: '${CONTROL_SUBNET}'
infra_id: '${INFRA_ID}'
region: '${REGION}'
zones:
- '${ZONE_0}'
- '${ZONE_1}'
- '${ZONE_2}'
EOF
infra_id
: the infrastructure name (INFRA_ID above)region
: the region to deploy the cluster into (for example us-east1)cluster_domain
: the domain for the cluster (for example openshift.example.com)cluster_network
: the URI to the cluster networkcontrol_subnet
: the URI to the control subnetzones
: the zones to deploy the control plane instances into (for example us-east1-b, us-east1-c, us-east1-d)
Create the deployment using gcloud.
gcloud deployment-manager deployments create ${INFRA_ID}-infra --config 02_infra.yaml
If you excluded the cluster-lb-ext
section above, then skip CLUSTER_PUBLIC_IP
.
export CLUSTER_IP=$(gcloud compute addresses describe ${INFRA_ID}-cluster-ip --region=${REGION} --format json | jq -r .address)
export CLUSTER_PUBLIC_IP=$(gcloud compute addresses describe ${INFRA_ID}-cluster-public-ip --region=${REGION} --format json | jq -r .address)
The templates do not create DNS entries due to limitations of Deployment Manager, so we must create them manually.
If you are installing into a Shared VPC (XPN),
use the --account
and --project
parameters to perform these actions in the host project.
if [ -f transaction.yaml ]; then rm transaction.yaml; fi
gcloud dns record-sets transaction start --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction add ${CLUSTER_IP} --name api.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 60 --type A --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction add ${CLUSTER_IP} --name api-int.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 60 --type A --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction execute --zone ${INFRA_ID}-private-zone
If you deployed external load balancers with 02_infra.yaml
, you can deploy external DNS entries.
if [ -f transaction.yaml ]; then rm transaction.yaml; fi
gcloud dns record-sets transaction start --zone ${BASE_DOMAIN_ZONE_NAME}
gcloud dns record-sets transaction add ${CLUSTER_PUBLIC_IP} --name api.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 60 --type A --zone ${BASE_DOMAIN_ZONE_NAME}
gcloud dns record-sets transaction execute --zone ${BASE_DOMAIN_ZONE_NAME}
Create the firewall rules and IAM roles for the cluster.
You can exclude either of these by removing their associated section(s) from the 02_infra.yaml
.
If you choose to do so, you will need to create the required resources some other way.
Details about these resources can be found in the imported python templates.
If you are installing into a Shared VPC (XPN), exclude the firewall section as they must be created in the host project.
Copy 03_firewall.py
locally.
Copy 03_iam.py
locally.
Create a resource definition file: 03_security.yaml
$ cat <<EOF >03_security.yaml
imports:
- path: 03_firewall.py
- path: 03_iam.py
resources:
- name: cluster-firewall
type: 03_firewall.py
properties:
allowed_external_cidr: '0.0.0.0/0'
infra_id: '${INFRA_ID}'
cluster_network: '${CLUSTER_NETWORK}'
network_cidr: '${NETWORK_CIDR}'
- name: cluster-iam
type: 03_iam.py
properties:
infra_id: '${INFRA_ID}'
EOF
allowed_external_cidr
: limits access to the cluster API and ssh to the bootstrap host. (for example External: 0.0.0.0/0, Internal: ${NETWORK_CIDR})infra_id
: the infrastructure name (INFRA_ID above)region
: the region to deploy the cluster into (for example us-east1)cluster_network
: the URI to the cluster networknetwork_cidr
: the CIDR of the vpc network (for example 10.0.0.0/16)
Create the deployment using gcloud.
gcloud deployment-manager deployments create ${INFRA_ID}-security --config 03_security.yaml
Configure the variables based on the 03_security.yaml
deployment.
If you excluded the IAM section, ensure these are set to the .email
of their associated resources.
export MASTER_SERVICE_ACCOUNT=$(gcloud iam service-accounts list --filter "email~^${INFRA_ID}-m@${PROJECT_NAME}." --format json | jq -r '.[0].email')
export WORKER_SERVICE_ACCOUNT=$(gcloud iam service-accounts list --filter "email~^${INFRA_ID}-w@${PROJECT_NAME}." --format json | jq -r '.[0].email')
The templates do not create the policy bindings due to limitations of Deployment Manager, so we must create them manually.
If you are installing into a Shared VPC (XPN),
ensure these service accounts have roles/compute.networkUser
access to each of the host project subnets used by the cluster so the instances can use the networks.
Also ensure the master service account has roles/compute.networkViewer
access to the host project itself so the gcp-cloud-provider can look for firewall settings as part of ingress controller operations.
gcloud projects add-iam-policy-binding ${PROJECT_NAME} --member "serviceAccount:${MASTER_SERVICE_ACCOUNT}" --role "roles/compute.instanceAdmin"
gcloud projects add-iam-policy-binding ${PROJECT_NAME} --member "serviceAccount:${MASTER_SERVICE_ACCOUNT}" --role "roles/compute.networkAdmin"
gcloud projects add-iam-policy-binding ${PROJECT_NAME} --member "serviceAccount:${MASTER_SERVICE_ACCOUNT}" --role "roles/compute.securityAdmin"
gcloud projects add-iam-policy-binding ${PROJECT_NAME} --member "serviceAccount:${MASTER_SERVICE_ACCOUNT}" --role "roles/iam.serviceAccountUser"
gcloud projects add-iam-policy-binding ${PROJECT_NAME} --member "serviceAccount:${MASTER_SERVICE_ACCOUNT}" --role "roles/storage.admin"
gcloud projects add-iam-policy-binding ${PROJECT_NAME} --member "serviceAccount:${WORKER_SERVICE_ACCOUNT}" --role "roles/compute.viewer"
gcloud projects add-iam-policy-binding ${PROJECT_NAME} --member "serviceAccount:${WORKER_SERVICE_ACCOUNT}" --role "roles/storage.admin"
gcloud iam service-accounts keys create service-account-key.json --iam-account=${MASTER_SERVICE_ACCOUNT}
Locate the RHCOS image source and create a cluster image.
export IMAGE_SOURCE=$(curl https://raw.githubusercontent.com/openshift/installer/master/data/data/rhcos.json | jq -r .gcp.url)
gcloud compute images create "${INFRA_ID}-rhcos-image" --source-uri="${IMAGE_SOURCE}"
export CLUSTER_IMAGE=$(gcloud compute images describe ${INFRA_ID}-rhcos-image --format json | jq -r .selfLink)
Create a bucket and upload the bootstrap.ign file.
gsutil mb gs://${INFRA_ID}-bootstrap-ignition
gsutil cp bootstrap.ign gs://${INFRA_ID}-bootstrap-ignition/
Create a signed URL for the bootstrap instance to use to access the Ignition config. Export the URL from the output as a variable.
export BOOTSTRAP_IGN=$(gsutil signurl -d 1h service-account-key.json gs://${INFRA_ID}-bootstrap-ignition/bootstrap.ign | grep "^gs:" | awk '{print $5}')
Copy 04_bootstrap.py
locally.
Create a resource definition file: 04_bootstrap.yaml
$ cat <<EOF >04_bootstrap.yaml
imports:
- path: 04_bootstrap.py
resources:
- name: cluster-bootstrap
type: 04_bootstrap.py
properties:
infra_id: '${INFRA_ID}'
region: '${REGION}'
zone: '${ZONE_0}'
cluster_network: '${CLUSTER_NETWORK}'
control_subnet: '${CONTROL_SUBNET}'
image: '${CLUSTER_IMAGE}'
machine_type: 'n1-standard-4'
root_volume_size: '128'
bootstrap_ign: '${BOOTSTRAP_IGN}'
EOF
infra_id
: the infrastructure name (INFRA_ID above)region
: the region to deploy the cluster into (for example us-east1)zone
: the zone to deploy the bootstrap instance into (for example us-east1-b)cluster_network
: the URI to the cluster networkcontrol_subnet
: the URI to the control subnetimage
: the URI to the RHCOS imagemachine_type
: the machine type of the instance (for example n1-standard-4)bootstrap_ign
: the URL output when creating a signed URL above.
You can add custom tags to 04_bootstrap.py
as needed
'tags': {
'items': [
context.properties['infra_id'] + '-master',
context.properties['infra_id'] + '-bootstrap',
'my-custom-tag-example'
]
},
Create the deployment using gcloud.
gcloud deployment-manager deployments create ${INFRA_ID}-bootstrap --config 04_bootstrap.yaml
The templates do not manage load balancer membership due to limitations of Deployment Manager, so we must add the bootstrap node manually.
gcloud compute instance-groups unmanaged add-instances ${INFRA_ID}-bootstrap-instance-group --zone=${ZONE_0} --instances=${INFRA_ID}-bootstrap
gcloud compute backend-services add-backend ${INFRA_ID}-api-internal-backend-service --region=${REGION} --instance-group=${INFRA_ID}-bootstrap-instance-group --instance-group-zone=${ZONE_0}
Copy 05_control_plane.py
locally.
Create a resource definition file: 05_control_plane.yaml
$ cat <<EOF >05_control_plane.yaml
imports:
- path: 05_control_plane.py
resources:
- name: cluster-control-plane
type: 05_control_plane.py
properties:
infra_id: '${INFRA_ID}'
zones:
- '${ZONE_0}'
- '${ZONE_1}'
- '${ZONE_2}'
control_subnet: '${CONTROL_SUBNET}'
image: '${CLUSTER_IMAGE}'
machine_type: 'n1-standard-4'
root_volume_size: '128'
service_account_email: '${MASTER_SERVICE_ACCOUNT}'
ignition: '${MASTER_IGNITION}'
EOF
infra_id
: the infrastructure name (INFRA_ID above)region
: the region to deploy the cluster into (for example us-east1)zones
: the zones to deploy the control plane instances into (for example us-east1-b, us-east1-c, us-east1-d)control_subnet
: the URI to the control subnetimage
: the URI to the RHCOS imagemachine_type
: the machine type of the instance (for example n1-standard-4)service_account_email
: the email address for the master service account created aboveignition
: the contents of the master.ign file
You can add custom tags to 05_control_plane.py
as needed
'tags': {
'items': [
context.properties['infra_id'] + '-master',
'my-custom-tag-example'
]
},
Create the deployment using gcloud.
gcloud deployment-manager deployments create ${INFRA_ID}-control-plane --config 05_control_plane.yaml
export MASTER0_IP=$(gcloud compute instances describe ${INFRA_ID}-master-0 --zone ${ZONE_0} --format json | jq -r .networkInterfaces[0].networkIP)
export MASTER1_IP=$(gcloud compute instances describe ${INFRA_ID}-master-1 --zone ${ZONE_1} --format json | jq -r .networkInterfaces[0].networkIP)
export MASTER2_IP=$(gcloud compute instances describe ${INFRA_ID}-master-2 --zone ${ZONE_2} --format json | jq -r .networkInterfaces[0].networkIP)
The templates do not manage DNS entries due to limitations of Deployment Manager, so we must add the etcd entries manually.
If you are installing into a Shared VPC (XPN),
use the --account
and --project
parameters to perform these actions in the host project.
if [ -f transaction.yaml ]; then rm transaction.yaml; fi
gcloud dns record-sets transaction start --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction add ${MASTER0_IP} --name etcd-0.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 60 --type A --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction add ${MASTER1_IP} --name etcd-1.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 60 --type A --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction add ${MASTER2_IP} --name etcd-2.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 60 --type A --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction add \
"0 10 2380 etcd-0.${CLUSTER_NAME}.${BASE_DOMAIN}." \
"0 10 2380 etcd-1.${CLUSTER_NAME}.${BASE_DOMAIN}." \
"0 10 2380 etcd-2.${CLUSTER_NAME}.${BASE_DOMAIN}." \
--name _etcd-server-ssl._tcp.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 60 --type SRV --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction execute --zone ${INFRA_ID}-private-zone
The templates do not manage load balancer membership due to limitations of Deployment Manager, so we must add the control plane nodes manually.
gcloud compute instance-groups unmanaged add-instances ${INFRA_ID}-master-${ZONE_0}-instance-group --zone=${ZONE_0} --instances=${INFRA_ID}-master-0
gcloud compute instance-groups unmanaged add-instances ${INFRA_ID}-master-${ZONE_1}-instance-group --zone=${ZONE_1} --instances=${INFRA_ID}-master-1
gcloud compute instance-groups unmanaged add-instances ${INFRA_ID}-master-${ZONE_2}-instance-group --zone=${ZONE_2} --instances=${INFRA_ID}-master-2
If you deployed external load balancers with 02_infra.yaml
, add the control plane instances to the target pool.
gcloud compute target-pools add-instances ${INFRA_ID}-api-target-pool --instances-zone="${ZONE_0}" --instances=${INFRA_ID}-master-0
gcloud compute target-pools add-instances ${INFRA_ID}-api-target-pool --instances-zone="${ZONE_1}" --instances=${INFRA_ID}-master-1
gcloud compute target-pools add-instances ${INFRA_ID}-api-target-pool --instances-zone="${ZONE_2}" --instances=${INFRA_ID}-master-2
You may create compute nodes by launching individual instances discretely or by automated processes outside the cluster (e.g. Auto Scaling Groups). You can also take advantage of the built in cluster scaling mechanisms and the machine API in OpenShift, as mentioned above. In this example, we'll manually launch one instance via the Deployment Manager template. Additional instances can be launched by including additional resources of type 06_worker.py in the file.
Copy 06_worker.py
locally.
Create a resource definition file: 06_worker.yaml
$ cat <<EOF >06_worker.yaml
imports:
- path: 06_worker.py
resources:
- name: 'worker-0'
type: 06_worker.py
properties:
infra_id: '${INFRA_ID}'
zone: '${ZONE_0}'
compute_subnet: '${COMPUTE_SUBNET}'
image: '${CLUSTER_IMAGE}'
machine_type: 'n1-standard-4'
root_volume_size: '128'
service_account_email: '${WORKER_SERVICE_ACCOUNT}'
ignition: '${WORKER_IGNITION}'
- name: 'worker-1'
type: 06_worker.py
properties:
infra_id: '${INFRA_ID}'
zone: '${ZONE_1}'
compute_subnet: '${COMPUTE_SUBNET}'
image: '${CLUSTER_IMAGE}'
machine_type: 'n1-standard-4'
root_volume_size: '128'
service_account_email: '${WORKER_SERVICE_ACCOUNT}'
ignition: '${WORKER_IGNITION}'
EOF
name
: the name of the compute node (for example worker-0)infra_id
: the infrastructure name (INFRA_ID above)region
: the region to deploy the cluster into (for example us-east1)zone
: the zone to deploy the worker node into (for example us-east1-b)compute_subnet
: the URI to the compute subnetimage
: the URI to the RHCOS imagemachine_type
: The machine type of the instance (for example n1-standard-4)service_account_email
: the email address for the worker service account created aboveignition
: the contents of the worker.ign file
You can add custom tags to 06_worker.py
as needed
'tags': {
'items': [
context.properties['infra_id'] + '-worker',
'my-custom-tag-example'
]
},
Create the deployment using gcloud.
gcloud deployment-manager deployments create ${INFRA_ID}-worker --config 06_worker.yaml
$ openshift-install wait-for bootstrap-complete
INFO Waiting up to 30m0s for the Kubernetes API at https://api.test.example.com:6443...
INFO API v1.12.4+c53f462 up
INFO Waiting up to 30m0s for the bootstrap-complete event...
At this point, you should delete the bootstrap resources.
If you are installing into a Shared VPC (XPN), it is safe to remove any bootstrap-specific firewall rules at this time.
gcloud compute backend-services remove-backend ${INFRA_ID}-api-internal-backend-service --region=${REGION} --instance-group=${INFRA_ID}-bootstrap-instance-group --instance-group-zone=${ZONE_0}
gsutil rm gs://${INFRA_ID}-bootstrap-ignition/bootstrap.ign
gsutil rb gs://${INFRA_ID}-bootstrap-ignition
gcloud deployment-manager deployments delete ${INFRA_ID}-bootstrap
The CSR requests for client and server certificates for nodes joining the cluster will need to be approved by the administrator.
Nodes that have not been provisioned by the cluster need their associated system:serviceaccount
certificate approved to join the cluster.
You can view them with:
$ oc get csr
NAME AGE REQUESTOR CONDITION
csr-8b2br 15m system:serviceaccount:openshift-machine-config-operator:node-bootstrapper Approved,Issued
csr-8vnps 15m system:serviceaccount:openshift-machine-config-operator:node-bootstrapper Approved,Issued
csr-b96j4 25s system:node:ip-10-0-52-215.us-east-2.compute.internal Approved,Issued
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
...
Administrators should carefully examine each CSR request and approve only the ones that belong to the nodes created by them. CSRs can be approved by name, for example:
oc adm certificate approve csr-bfd72
If you removed the DNS Zone configuration earlier, you'll need to manually create some DNS records pointing at the ingress load balancer.
You can create either a wildcard *.apps.{baseDomain}.
or specific records (more on the specific records below).
You can use A, CNAME, etc. records, as you see fit.
If you are installing into a Shared VPC (XPN),
use the --account
and --project
parameters to perform these actions in the host project.
$ oc -n openshift-ingress get service router-default
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
router-default LoadBalancer 172.30.18.154 35.233.157.184 80:32288/TCP,443:31215/TCP 98
export ROUTER_IP=$(oc -n openshift-ingress get service router-default --no-headers | awk '{print $4}')
if [ -f transaction.yaml ]; then rm transaction.yaml; fi
gcloud dns record-sets transaction start --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction add ${ROUTER_IP} --name \*.apps.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 300 --type A --zone ${INFRA_ID}-private-zone
gcloud dns record-sets transaction execute --zone ${INFRA_ID}-private-zone
if [ -f transaction.yaml ]; then rm transaction.yaml; fi
gcloud dns record-sets transaction start --zone ${BASE_DOMAIN_ZONE_NAME}
gcloud dns record-sets transaction add ${ROUTER_IP} --name \*.apps.${CLUSTER_NAME}.${BASE_DOMAIN}. --ttl 300 --type A --zone ${BASE_DOMAIN_ZONE_NAME}
gcloud dns record-sets transaction execute --zone ${BASE_DOMAIN_ZONE_NAME}
If you prefer to add explicit domains instead of using a wildcard, you can create entries for each of the cluster's current routes:
$ oc get --all-namespaces -o jsonpath='{range .items[*]}{range .status.ingress[*]}{.host}{"\n"}{end}{end}' routes
oauth-openshift.apps.your.cluster.domain.example.com
console-openshift-console.apps.your.cluster.domain.example.com
downloads-openshift-console.apps.your.cluster.domain.example.com
alertmanager-main-openshift-monitoring.apps.your.cluster.domain.example.com
grafana-openshift-monitoring.apps.your.cluster.domain.example.com
prometheus-k8s-openshift-monitoring.apps.your.cluster.domain.example.com
If you are installing into a Shared VPC (XPN), you'll need to manually create some firewall rules for the ingress services. These rules would normally be created by the ingress controller via the gcp cloud provider. When the cloud provider detects Shared VPC (XPN), it will instead emit cluster events informing which firewall rules need to be created. Either create each rule as requested by the events (option A), or create cluster-wide firewall rules for all services (option B).
Use the --account
and --project
parameters to perform these actions in the host project.
When the cluster is first provisioned, and as services are later created and modified, the gcp cloud provider may generate events informing of firewall rules required to be manually created in order to allow access to these services.
Firewall change required by security admin: `gcloud compute firewall-rules create k8s-fw-a26e631036a3f46cba28f8df67266d55 --network example-network --description "{\"kubernetes.io/service-name\":\"openshift-ingress/router-default\", \"kubernetes.io/service-ip\":\"35.237.236.234\"}\" --allow tcp:443,tcp:80 --source-ranges 0.0.0.0/0 --target-tags exampl-fqzq7-master,exampl-fqzq7-worker --project example-project`
Create the firewall rules as instructed.
Add a single firewall rule to allow the gce health checks to access all of the services. This enables the ingress load balancers to determine the health status of their instances.
gcloud compute firewall-rules create --allow='tcp:30000-32767,udp:30000-32767' --network="${CLUSTER_NETWORK}" --source-ranges='130.211.0.0/22,35.191.0.0/16,209.85.152.0/22,209.85.204.0/22' --target-tags="${INFRA_ID}-master,${INFRA_ID}-worker" ${INFRA_ID}-ingress-hc
Add a single firewall rule to allow access to all cluster services.
If you want your cluster to be private, you can use --source-ranges=${NETWORK_CIDR}
.
This rule may need to be updated accordingly when adding services on ports other than tcp:80,tcp:443
.
gcloud compute firewall-rules create --allow='tcp:80,tcp:443' --network="${CLUSTER_NETWORK}" --source-ranges="0.0.0.0/0" --target-tags="${INFRA_ID}-master,${INFRA_ID}-worker" ${INFRA_ID}-ingress
$ openshift-install wait-for install-complete
INFO Waiting up to 30m0s for the cluster to initialize...
Also, you can observe the running state of your cluster pods:
$ oc get clusterversion
NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
version False True 24m Working towards 4.2.0-0.okd-2019-08-05-204819: 99% complete
$ oc get clusteroperators
NAME VERSION AVAILABLE PROGRESSING DEGRADED SINCE
authentication 4.2.0-0.okd-2019-08-05-204819 True False False 6m18s
cloud-credential 4.2.0-0.okd-2019-08-05-204819 True False False 17m
cluster-autoscaler 4.2.0-0.okd-2019-08-05-204819 True False False 80s
console 4.2.0-0.okd-2019-08-05-204819 True False False 3m57s
dns 4.2.0-0.okd-2019-08-05-204819 True False False 22m
image-registry 4.2.0-0.okd-2019-08-05-204819 True False False 5m4s
ingress 4.2.0-0.okd-2019-08-05-204819 True False False 4m38s
insights 4.2.0-0.okd-2019-08-05-204819 True False False 21m
kube-apiserver 4.2.0-0.okd-2019-08-05-204819 True False False 12m
kube-controller-manager 4.2.0-0.okd-2019-08-05-204819 True False False 12m
kube-scheduler 4.2.0-0.okd-2019-08-05-204819 True False False 11m
machine-api 4.2.0-0.okd-2019-08-05-204819 True False False 18m
machine-config 4.2.0-0.okd-2019-08-05-204819 True False False 22m
marketplace 4.2.0-0.okd-2019-08-05-204819 True False False 5m38s
monitoring 4.2.0-0.okd-2019-08-05-204819 True False False 86s
network 4.2.0-0.okd-2019-08-05-204819 True False False 14m
node-tuning 4.2.0-0.okd-2019-08-05-204819 True False False 6m8s
openshift-apiserver 4.2.0-0.okd-2019-08-05-204819 True False False 6m48s
openshift-controller-manager 4.2.0-0.okd-2019-08-05-204819 True False False 12m
openshift-samples 4.2.0-0.okd-2019-08-05-204819 True False False 67s
operator-lifecycle-manager 4.2.0-0.okd-2019-08-05-204819 True False False 15m
operator-lifecycle-manager-catalog 4.2.0-0.okd-2019-08-05-204819 True False False 15m
operator-lifecycle-manager-packageserver 4.2.0-0.okd-2019-08-05-204819 True False False 6m48s
service-ca 4.2.0-0.okd-2019-08-05-204819 True False False 17m
service-catalog-apiserver 4.2.0-0.okd-2019-08-05-204819 True False False 6m18s
service-catalog-controller-manager 4.2.0-0.okd-2019-08-05-204819 True False False 6m19s
storage 4.2.0-0.okd-2019-08-05-204819 True False False 6m20s
$ oc get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system etcd-member-ip-10-0-3-111.us-east-2.compute.internal 1/1 Running 0 35m
kube-system etcd-member-ip-10-0-3-239.us-east-2.compute.internal 1/1 Running 0 37m
kube-system etcd-member-ip-10-0-3-24.us-east-2.compute.internal 1/1 Running 0 35m
openshift-apiserver-operator openshift-apiserver-operator-6d6674f4f4-h7t2t 1/1 Running 1 37m
openshift-apiserver apiserver-fm48r 1/1 Running 0 30m
openshift-apiserver apiserver-fxkvv 1/1 Running 0 29m
openshift-apiserver apiserver-q85nm 1/1 Running 0 29m
...
openshift-service-ca-operator openshift-service-ca-operator-66ff6dc6cd-9r257 1/1 Running 0 37m
openshift-service-ca apiservice-cabundle-injector-695b6bcbc-cl5hm 1/1 Running 0 35m
openshift-service-ca configmap-cabundle-injector-8498544d7-25qn6 1/1 Running 0 35m
openshift-service-ca service-serving-cert-signer-6445fc9c6-wqdqn 1/1 Running 0 35m
openshift-service-catalog-apiserver-operator openshift-service-catalog-apiserver-operator-549f44668b-b5q2w 1/1 Running 0 32m
openshift-service-catalog-controller-manager-operator openshift-service-catalog-controller-manager-operator-b78cr2lnm 1/1 Running 0 31m