path: root/inventory/byo/hosts.ose.example

# This is an example of a bring your own (byo) host inventory

# Create an OSEv3 group that contains the masters and nodes groups
[OSEv3:children]
masters
nodes
etcd
lb
nfs

# Set variables common for all OSEv3 hosts
[OSEv3:vars]
# SSH user, this user should allow ssh based auth without requiring a
# password. If using ssh key based auth, then the key should be managed by an
# ssh agent.
ansible_ssh_user=root

# If ansible_ssh_user is not root, ansible_become must be set to true and the
# user must be configured for passwordless sudo
#ansible_become=yes

# Debug level for all OpenShift components (Defaults to 2)
debug_level=2

# deployment type valid values are origin, online, atomic-enterprise, and openshift-enterprise
deployment_type=openshift-enterprise

# Specify the generic release of OpenShift to install. This is used mainly just during installation, after which we
# rely on the version running on the first master. Works best for containerized installs where we can usually
# use this to lookup the latest exact version of the container images, which is the tag actually used to configure
# the cluster. For RPM installations we just verify the version detected in your configured repos matches this
# release.
openshift_release=v3.2

# Specify an exact container image tag to install or configure.
# WARNING: This value will be used for all hosts in containerized environments, even those that have another version installed.
# This could potentially trigger an upgrade and downtime, so be careful with modifying this value after the cluster is set up.
#openshift_image_tag=v3.2.0.46

# Specify an exact rpm version to install or configure.
# WARNING: This value will be used for all hosts in RPM based environments, even those that have another version installed.
# This could potentially trigger an upgrade and downtime, so be careful with modifying this value after the cluster is set up.
#openshift_pkg_version=-3.2.0.46

# Install the openshift examples
#openshift_install_examples=true

# Configure logoutURL in the master config for console customization
# See: https://docs.openshift.org/latest/install_config/web_console_customization.html#changing-the-logout-url
#openshift_master_logout_url=http://example.com

# Configure extensionScripts in the master config for console customization
# See: https://docs.openshift.org/latest/install_config/web_console_customization.html#loading-custom-scripts-and-stylesheets
#openshift_master_extension_scripts=['/path/to/script1.js','/path/to/script2.js']

# Configure extensionStylesheets in the master config for console customization
# See: https://docs.openshift.org/latest/install_config/web_console_customization.html#loading-custom-scripts-and-stylesheets
#openshift_master_extension_stylesheets=['/path/to/stylesheet1.css','/path/to/stylesheet2.css']

# Configure extensions in the master config for console customization
# See: https://docs.openshift.org/latest/install_config/web_console_customization.html#serving-static-files
#openshift_master_extensions=[{'name': 'images', 'sourceDirectory': '/path/to/my_images'}]

# Configure extensions in the master config for console customization
# See: https://docs.openshift.org/latest/install_config/web_console_customization.html#serving-static-files
#openshift_master_oauth_template=/path/to/login-template.html

# Configure loggingPublicURL in the master config for aggregate logging
# See: https://docs.openshift.com/enterprise/latest/install_config/aggregate_logging.html
#openshift_master_logging_public_url=https://kibana.example.com
#
# Configure imagePolicyConfig in the master config
# See: https://godoc.org/github.com/openshift/origin/pkg/cmd/server/api#ImagePolicyConfig
#openshift_master_image_policy_config={"maxImagesBulkImportedPerRepository": 3, "disableScheduledImport": true}

# Docker Configuration
# Add additional, insecure, and blocked registries to global docker configuration
# For enterprise deployment types we ensure that registry.access.redhat.com is
# included if you do not include it
#openshift_docker_additional_registries=registry.example.com
#openshift_docker_insecure_registries=registry.example.com
#openshift_docker_blocked_registries=registry.hacker.com
# Disable pushing to dockerhub
#openshift_docker_disable_push_dockerhub=True
# Items added, as is, to end of /etc/sysconfig/docker OPTIONS
# Default value: "--log-driver=json-file --log-opt max-size=50m"
#openshift_docker_options="-l warn --ipv6=false"

# Specify exact version of Docker to configure or upgrade to.
# Downgrades are not supported and will error out. Be careful when upgrading docker from < 1.10 to > 1.10.
# docker_version="1.10.3"

# Skip upgrading Docker during an OpenShift upgrade, leaves the current Docker version alone.
# docker_upgrade=False

# Alternate image format string. If you're not modifying the format string and
# only need to inject your own registry you may want to consider
# openshift_docker_additional_registries instead
#oreg_url=example.com/openshift3/ose-${component}:${version}
# If oreg_url points to a registry other than registry.access.redhat.com we can
# modify image streams to point at that registry by setting the following to true
#openshift_examples_modify_imagestreams=True

# Additional yum repos to install
#openshift_additional_repos=[{'id': 'ose-devel', 'name': 'ose-devel', 'baseurl': 'http://example.com/puddle/build/AtomicOpenShift/3.1/latest/RH7-RHOSE-3.0/$basearch/os', 'enabled': 1, 'gpgcheck': 0}]

# htpasswd auth
openshift_master_identity_providers=[{'name': 'htpasswd_auth', 'login': 'true', 'challenge': 'true', 'kind': 'HTPasswdPasswordIdentityProvider', 'filename': '/etc/origin/master/htpasswd'}]
# Defining htpasswd users
#openshift_master_htpasswd_users={'user1': '<pre-hashed password>', 'user2': '<pre-hashed password>'}
# or
#openshift_master_htpasswd_file=<path to local pre-generated htpasswd file>

# Allow all auth
#openshift_master_identity_providers=[{'name': 'allow_all', 'login': 'true', 'challenge': 'true', 'kind': 'AllowAllPasswordIdentityProvider'}]

# LDAP auth
#openshift_master_identity_providers=[{'name': 'my_ldap_provider', 'challenge': 'true', 'login': 'true', 'kind': 'LDAPPasswordIdentityProvider', 'attributes': {'id': ['dn'], 'email': ['mail'], 'name': ['cn'], 'preferredUsername': ['uid']}, 'bindDN': '', 'bindPassword': '', 'ca': '', 'insecure': 'false', 'url': 'ldap://ldap.example.com:389/ou=users,dc=example,dc=com?uid'}]
# Configuring the ldap ca certificate
#openshift_master_ldap_ca=<ca text>
# or
#openshift_master_ldap_ca_file=<path to local ca file to use>

# Available variables for configuring certificates for other identity providers:
#openshift_master_openid_ca
#openshift_master_openid_ca_file
#openshift_master_request_header_ca
#openshift_master_request_header_ca_file

# Cloud Provider Configuration
#
# Note: You may make use of environment variables rather than store
# sensitive configuration within the ansible inventory.
# For example:
#openshift_cloudprovider_aws_access_key="{{ lookup('env','AWS_ACCESS_KEY_ID') }}"
#openshift_cloudprovider_aws_secret_key="{{ lookup('env','AWS_SECRET_ACCESS_KEY') }}"
#
# AWS
#openshift_cloudprovider_kind=aws
# Note: IAM profiles may be used instead of storing API credentials on disk.
#openshift_cloudprovider_aws_access_key=aws_access_key_id
#openshift_cloudprovider_aws_secret_key=aws_secret_access_key
#
# Openstack
#openshift_cloudprovider_kind=openstack
#openshift_cloudprovider_openstack_auth_url=http://openstack.example.com:35357/v2.0/
#openshift_cloudprovider_openstack_username=username
#openshift_cloudprovider_openstack_password=password
#openshift_cloudprovider_openstack_tenant_id=tenant_id
#openshift_cloudprovider_openstack_tenant_name=tenant_name
#openshift_cloudprovider_openstack_region=region
#openshift_cloudprovider_openstack_lb_subnet_id=subnet_id

# Project Configuration
#osm_project_request_message=''
#osm_project_request_template=''
#osm_mcs_allocator_range='s0:/2'
#osm_mcs_labels_per_project=5
#osm_uid_allocator_range='1000000000-1999999999/10000'

# Configure additional projects
#openshift_additional_projects={'my-project': {'default_node_selector': 'label=value'}}

# Enable cockpit
#osm_use_cockpit=true
#
# Set cockpit plugins
#osm_cockpit_plugins=['cockpit-kubernetes']

# Native high availability cluster method with optional load balancer.
# If no lb group is defined, the installer assumes that a load balancer has
# been preconfigured. For installation the value of
# openshift_master_cluster_hostname must resolve to the load balancer
# or to one or all of the masters defined in the inventory if no load
# balancer is present.
#openshift_master_cluster_method=native
#openshift_master_cluster_hostname=openshift-ansible.test.example.com
#openshift_master_cluster_public_hostname=openshift-ansible.test.example.com

# Pacemaker high availability cluster method.
# Pacemaker HA environment must be able to self provision the
# configured VIP. For installation openshift_master_cluster_hostname
# must resolve to the configured VIP.
#openshift_master_cluster_method=pacemaker
#openshift_master_cluster_password=openshift_cluster
#openshift_master_cluster_vip=192.168.133.25
#openshift_master_cluster_public_vip=192.168.133.25
#openshift_master_cluster_hostname=openshift-ansible.test.example.com
#openshift_master_cluster_public_hostname=openshift-ansible.test.example.com

# Override the default controller lease ttl
#osm_controller_lease_ttl=30

# Configure controller arguments
#osm_controller_args={'resource-quota-sync-period': ['10s']}

# Configure api server arguments
#osm_api_server_args={'max-requests-inflight': ['400']}

# default subdomain to use for exposed routes
#openshift_master_default_subdomain=apps.test.example.com

# additional cors origins
#osm_custom_cors_origins=['foo.example.com', 'bar.example.com']

# default project node selector
#osm_default_node_selector='region=primary'

# Override the default pod eviction timeout
#openshift_master_pod_eviction_timeout=5m

# Override the default oauth tokenConfig settings:
# openshift_master_access_token_max_seconds=86400
# openshift_master_auth_token_max_seconds=500

# Override master servingInfo.maxRequestsInFlight
#openshift_master_max_requests_inflight=500

# default storage plugin dependencies to install, by default the ceph and
# glusterfs plugin dependencies will be installed, if available.
#osn_storage_plugin_deps=['ceph','glusterfs']

# OpenShift Router Options
#
# An OpenShift router will be created during install if there are
# nodes present with labels matching the default router selector,
# "region=infra". Set openshift_node_labels per node as needed in
# order to label nodes.
#
# Example:
# [nodes]
# node.example.com openshift_node_labels="{'region': 'infra'}"
#
# Router selector (optional)
# Router will only be created if nodes matching this label are present.
# Default value: 'region=infra'
#openshift_hosted_router_selector='region=infra'
#
# Router replicas (optional)
# Unless specified, openshift-ansible will calculate the replica count
# based on the number of nodes matching the openshift router selector.
#openshift_hosted_router_replicas=2
#
# Router force subdomain (optional)
# A router path format to force on all routes used by this router
# (will ignore the route host value)
#openshift_hosted_router_force_subdomain='${name}-${namespace}.apps.example.com'
#
# Router certificate (optional)
# Provide local certificate paths which will be configured as the
# router's default certificate.
#openshift_hosted_router_certificate={"certfile": "/path/to/router.crt", "keyfile": "/path/to/router.key", "cafile": "/path/to/router-ca.crt"}
#
# Disable management of the OpenShift Router
#openshift_hosted_manage_router=false

# Openshift Registry Options
#
# An OpenShift registry will be created during install if there are
# nodes present with labels matching the default registry selector,
# "region=infra". Set openshift_node_labels per node as needed in
# order to label nodes.
#
# Example:
# [nodes]
# node.example.com openshift_node_labels="{'region': 'infra'}"
#
# Registry selector (optional)
# Registry will only be created if nodes matching this label are present.
# Default value: 'region=infra'
#openshift_hosted_registry_selector='region=infra'
#
# Registry replicas (optional)
# Unless specified, openshift-ansible will calculate the replica count
# based on the number of nodes matching the openshift registry selector.
#openshift_hosted_registry_replicas=2
#
# Disable management of the OpenShift Registry
#openshift_hosted_manage_registry=false

# Registry Storage Options
#
# NFS Host Group
# An NFS volume will be created with path "nfs_directory/volume_name"
# on the host within the [nfs] host group.  For example, the volume
# path using these options would be "/exports/registry"
#openshift_hosted_registry_storage_kind=nfs
#openshift_hosted_registry_storage_access_modes=['ReadWriteMany']
#openshift_hosted_registry_storage_nfs_directory=/exports
#openshift_hosted_registry_storage_nfs_options='*(rw,root_squash)'
#openshift_hosted_registry_storage_volume_name=registry
#openshift_hosted_registry_storage_volume_size=10Gi
#
# External NFS Host
# NFS volume must already exist with path "nfs_directory/_volume_name" on
# the storage_host. For example, the remote volume path using these
# options would be "nfs.example.com:/exports/registry"
#openshift_hosted_registry_storage_kind=nfs
#openshift_hosted_registry_storage_access_modes=['ReadWriteMany']
#openshift_hosted_registry_storage_host=nfs.example.com
#openshift_hosted_registry_storage_nfs_directory=/exports
#openshift_hosted_registry_storage_volume_name=registry
#openshift_hosted_registry_storage_volume_size=10Gi
#
# Openstack
# Volume must already exist.
#openshift_hosted_registry_storage_kind=openstack
#openshift_hosted_registry_storage_access_modes=['ReadWriteOnce']
#openshift_hosted_registry_storage_openstack_filesystem=ext4
#openshift_hosted_registry_storage_openstack_volumeID=3a650b4f-c8c5-4e0a-8ca5-eaee11f16c57
#openshift_hosted_registry_storage_volume_size=10Gi
#
# AWS S3
# S3 bucket must already exist.
#openshift_hosted_registry_storage_kind=object
#openshift_hosted_registry_storage_provider=s3
#openshift_hosted_registry_storage_s3_accesskey=aws_access_key_id
#openshift_hosted_registry_storage_s3_secretkey=aws_secret_access_key
#openshift_hosted_registry_storage_s3_bucket=bucket_name
#openshift_hosted_registry_storage_s3_region=bucket_region
#openshift_hosted_registry_storage_s3_chunksize=26214400
#openshift_hosted_registry_pullthrough=true

# Metrics deployment
# See: https://docs.openshift.com/enterprise/latest/install_config/cluster_metrics.html
#
# By default metrics are not automatically deployed, set this to enable them
# openshift_hosted_metrics_deploy=true
#
# Storage Options
# If openshift_hosted_metrics_storage_kind is unset then metrics will be stored
# in an EmptyDir volume and will be deleted when the cassandra pod terminates.
# Storage options A & B currently support only one cassandra pod which is
# generally enough for up to 1000 pods. Additional volumes can be created
# manually after the fact and metrics scaled per the docs.
#
# Option A - NFS Host Group
# An NFS volume will be created with path "nfs_directory/volume_name"
# on the host within the [nfs] host group.  For example, the volume
# path using these options would be "/exports/metrics"
#openshift_hosted_metrics_storage_kind=nfs
#openshift_hosted_metrics_storage_access_modes=['ReadWriteOnce']
#openshift_hosted_metrics_storage_nfs_directory=/exports
#openshift_hosted_metrics_storage_nfs_options='*(rw,root_squash)'
#openshift_hosted_metrics_storage_volume_name=metrics
#openshift_hosted_metrics_storage_volume_size=10Gi
#
# Option B - External NFS Host
# NFS volume must already exist with path "nfs_directory/_volume_name" on
# the storage_host. For example, the remote volume path using these
# options would be "nfs.example.com:/exports/metrics"
#openshift_hosted_metrics_storage_kind=nfs
#openshift_hosted_metrics_storage_access_modes=['ReadWriteOnce']
#openshift_hosted_metrics_storage_host=nfs.example.com
#openshift_hosted_metrics_storage_nfs_directory=/exports
#openshift_hosted_metrics_storage_volume_name=metrics
#openshift_hosted_metrics_storage_volume_size=10Gi
#
# Option C - Dynamic -- If openshift supports dynamic volume provisioning for
# your cloud platform use this.
#openshift_hosted_metrics_storage_kind=dynamic
#
# Override metricsPublicURL in the master config for cluster metrics
# Defaults to https://hawkular-metrics.{{openshift_master_default_subdomain}}/hawkular/metrics
#openshift_master_metrics_public_url=https://hawkular-metrics.example.com/hawkular/metrics


# Configure the multi-tenant SDN plugin (default is 'redhat/openshift-ovs-subnet')
# os_sdn_network_plugin_name='redhat/openshift-ovs-multitenant'

# Disable the OpenShift SDN plugin
# openshift_use_openshift_sdn=False

# Configure SDN cluster network and kubernetes service CIDR blocks. These
# network blocks should be private and should not conflict with network blocks
# in your infrastructure that pods may require access to. Can not be changed
# after deployment.
#osm_cluster_network_cidr=10.1.0.0/16
#openshift_portal_net=172.30.0.0/16


# ExternalIPNetworkCIDRs controls what values are acceptable for the
# service external IP field. If empty, no externalIP may be set. It
# may contain a list of CIDRs which are checked for access. If a CIDR
# is prefixed with !, IPs in that CIDR will be rejected. Rejections
# will be applied first, then the IP checked against one of the
# allowed CIDRs. You should ensure this range does not overlap with
# your nodes, pods, or service CIDRs for security reasons.
#openshift_master_external_ip_network_cidrs=['0.0.0.0/0']

# Configure number of bits to allocate to each host’s subnet e.g. 8
# would mean a /24 network on the host.
#osm_host_subnet_length=8

# Configure master API and console ports.
#openshift_master_api_port=8443
#openshift_master_console_port=8443

# set RPM version for debugging purposes
#openshift_pkg_version=-3.1.0.0

# Configure custom ca certificate
#openshift_master_ca_certificate={'certfile': '/path/to/ca.crt', 'keyfile': '/path/to/ca.key'}
#
# NOTE: CA certificate will not be replaced with existing clusters.
# This option may only be specified when creating a new cluster or
# when redeploying cluster certificates with the redeploy-certificates
# playbook. If replacing the CA certificate in an existing cluster
# with a custom ca certificate, the following variable must also be
# set.
#openshift_certificates_redeploy_ca=true

# Configure custom named certificates (SNI certificates)
#
# https://docs.openshift.com/enterprise/latest/install_config/certificate_customization.html
#
# NOTE: openshift_master_named_certificates is cached on masters and is an
# additive fact, meaning that each run with a different set of certificates
# will add the newly provided certificates to the cached set of certificates.
#
# An optional CA may be specified for each named certificate. CAs will
# be added to the OpenShift CA bundle which allows for the named
# certificate to be served for internal cluster communication.
#
# If you would like openshift_master_named_certificates to be overwritten with
# the provided value, specify openshift_master_overwrite_named_certificates.
#openshift_master_overwrite_named_certificates=true
#
# Provide local certificate paths which will be deployed to masters
#openshift_master_named_certificates=[{"certfile": "/path/to/custom1.crt", "keyfile": "/path/to/custom1.key", "cafile": "/path/to/custom-ca1.crt"}]
#
# Detected names may be overridden by specifying the "names" key
#openshift_master_named_certificates=[{"certfile": "/path/to/custom1.crt", "keyfile": "/path/to/custom1.key", "names": ["public-master-host.com"], "cafile": "/path/to/custom-ca1.crt"}]

# Session options
#openshift_master_session_name=ssn
#openshift_master_session_max_seconds=3600

# An authentication and encryption secret will be generated if secrets
# are not provided. If provided, openshift_master_session_auth_secrets
# and openshift_master_encryption_secrets must be equal length.
#
# Signing secrets, used to authenticate sessions using
# HMAC. Recommended to use secrets with 32 or 64 bytes.
#openshift_master_session_auth_secrets=['DONT+USE+THIS+SECRET+b4NV+pmZNSO']
#
# Encrypting secrets, used to encrypt sessions. Must be 16, 24, or 32
# characters long, to select AES-128, AES-192, or AES-256.
#openshift_master_session_encryption_secrets=['DONT+USE+THIS+SECRET+b4NV+pmZNSO']

# configure how often node iptables rules are refreshed
#openshift_node_iptables_sync_period=5s

# Configure nodeIP in the node config
# This is needed in cases where node traffic is desired to go over an
# interface other than the default network interface.
#openshift_node_set_node_ip=True

# Force setting of system hostname when configuring OpenShift
# This works around issues related to installations that do not have valid dns
# entries for the interfaces attached to the host.
#openshift_set_hostname=True

# Configure dnsIP in the node config
#openshift_dns_ip=172.30.0.1

# Configure node kubelet arguments
#openshift_node_kubelet_args={'max-pods': ['110'], 'image-gc-high-threshold': ['90'], 'image-gc-low-threshold': ['80']}

# Configure logrotate scripts
# See: https://github.com/nickhammond/ansible-logrotate
#logrotate_scripts=[{"name": "syslog", "path": "/var/log/cron\n/var/log/maillog\n/var/log/messages\n/var/log/secure\n/var/log/spooler\n", "options": ["daily", "rotate 7", "compress", "sharedscripts", "missingok"], "scripts": {"postrotate": "/bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> /dev/null || true"}}]

# openshift-ansible will wait indefinitely for your input when it detects that the
# value of openshift_hostname resolves to an IP address not bound to any local
# interfaces. This mis-configuration is problematic for any pod leveraging host
# networking and liveness or readiness probes.
# Setting this variable to true will override that check.
#openshift_override_hostname_check=true

# Configure dnsmasq for cluster dns, switch the host's local resolver to use dnsmasq
# and configure node's dnsIP to point at the node's local dnsmasq instance. Defaults
# to True for Origin 1.2 and OSE 3.2. False for 1.1 / 3.1 installs, this cannot
# be used with 1.0 and 3.0.
#openshift_use_dnsmasq=False
# Define an additional dnsmasq.conf file to deploy to /etc/dnsmasq.d/openshift-ansible.conf
# This is useful for POC environments where DNS may not actually be available yet.
#openshift_node_dnsmasq_additional_config_file=/home/bob/ose-dnsmasq.conf

# Global Proxy Configuration
# These options configure HTTP_PROXY, HTTPS_PROXY, and NOPROXY environment
# variables for docker and master services.
#openshift_http_proxy=http://USER:PASSWORD@IPADDR:PORT
#openshift_https_proxy=https://USER:PASSWORD@IPADDR:PORT
#openshift_no_proxy='.hosts.example.com,some-host.com'
#
# Most environments don't require a proxy between openshift masters, nodes, and
# etcd hosts. So automatically add those hostnames to the openshift_no_proxy list.
# If all of your hosts share a common domain you may wish to disable this and
# specify that domain above.
#openshift_generate_no_proxy_hosts=True
#
# These options configure the BuildDefaults admission controller which injects
# environment variables into Builds. These values will default to the global proxy
# config values. You only need to set these if they differ from the global settings
# above. See BuildDefaults
# documentation at https://docs.openshift.org/latest/admin_guide/build_defaults_overrides.html
#openshift_builddefaults_http_proxy=http://USER:PASSWORD@HOST:PORT
#openshift_builddefaults_https_proxy=https://USER:PASSWORD@HOST:PORT
#openshift_builddefaults_no_proxy=build_defaults
#openshift_builddefaults_git_http_proxy=http://USER:PASSWORD@HOST:PORT
#openshift_builddefaults_git_https_proxy=https://USER:PASSWORD@HOST:PORT
# Or you may optionally define your own serialized as json
#openshift_builddefaults_json='{"BuildDefaults":{"configuration":{"apiVersion":"v1","env":[{"name":"HTTP_PROXY","value":"http://proxy.example.com.redhat.com:3128"},{"name":"NO_PROXY","value":"ose3-master.example.com"}],"gitHTTPProxy":"http://proxy.example.com:3128","kind":"BuildDefaultsConfig"}}}'

# masterConfig.volumeConfig.dynamicProvisioningEnabled, configurable as of 1.2/3.2, enabled by default
#openshift_master_dynamic_provisioning_enabled=False

# Configure usage of openshift_clock role.
#openshift_clock_enabled=true

# OpenShift Per-Service Environment Variables
# Environment variables are added to /etc/sysconfig files for
# each OpenShift service: node, master (api and controllers).
# API and controllers environment variables are merged in single
# master environments.
#openshift_master_api_env_vars={"ENABLE_HTTP2": "true"}
#openshift_master_controllers_env_vars={"ENABLE_HTTP2": "true"}
#openshift_node_env_vars={"ENABLE_HTTP2": "true"}

# Enable API service auditing, available as of 3.2
#openshift_master_audit_config={"basicAuditEnabled": true}

# host group for masters
[masters]
ose3-master[1:3]-ansible.test.example.com

[etcd]
ose3-etcd[1:3]-ansible.test.example.com

[lb]
ose3-lb-ansible.test.example.com

# NOTE: Currently we require that masters be part of the SDN which requires that they also be nodes
# However, in order to ensure that your masters are not burdened with running pods you should
# make them unschedulable by adding openshift_schedulable=False any node that's also a master.
[nodes]
ose3-master[1:3]-ansible.test.example.com
ose3-node[1:2]-ansible.test.example.com openshift_node_labels="{'region': 'primary', 'zone': 'default'}"