Installation

Installation of Calico in OpenShift is integrated in openshift-ansible. The information below explains the variables which must be set during the standard Advanced Installation.

Before you begin

Ensure that your cluster meets the Calico system requirements.

Installation

To install Calico in OpenShift, set the following OSEv3:vars in your inventory file:

• os_sdn_network_plugin_name=cni
• openshift_use_calico=true
• openshift_use_openshift_sdn=false

Also ensure that you have an explicitly defined host in the [etcd] group.

Sample Inventory File:

[OSEv3:children]
masters
nodes
etcd

[OSEv3:vars]
os_sdn_network_plugin_name=cni
openshift_use_calico=true
openshift_use_openshift_sdn=false

[masters]
master1

[nodes]
node1

[etcd]
etcd1

You are now ready to execute the ansible provision which will install Calico. Note that by default, Calico will connect to the same etcd that OpenShift uses, and in order to do so, will distribute etcd’s certs to each node. If you would prefer Calico not connect to the same etcd as OpenShift, you may modify the install such that Calico connects to an etcd you have already set up by following the dedicated etcd install guide.