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README_openstack.md

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⚠️ WARNING ⚠️ This feature is community supported and has not been tested by Red Hat. Visit docs.openshift.com for OpenShift Enterprise or OpenShift Origin supported installation docs.

OPENSTACK Setup instructions

Requirements

The OpenStack instance must have Neutron and Heat enabled.

Install Dependencies

  1. The OpenStack python clients for Nova, Neutron and Heat are required:
  • python-novaclient
  • python-neutronclient
  • python-heatclient

On Fedora:

  dnf install -y ansible python-novaclient python-neutronclient python-heatclient

On RHEL / CentOS:

  yum install -y ansible python-novaclient python-neutronclient python-heatclient

Configuration

The following options can be passed via the -o flag of the create command:

  • infra_heat_stack (default to playbooks/openstack/openshift-cluster/files/heat_stack.yaml): filename of the HEAT template to use to create the cluster infrastructure

The following options are used only by heat_stack.yaml. They are so used only if the infra_heat_stack option is left with its default value.

  • image_name: Name of the image to use to spawn VMs
  • public_key (default to ~/.ssh/id_rsa.pub): filename of the ssh public key
  • etcd_flavor (default to m1.small): The ID or name of the flavor for the etcd nodes
  • master_flavor (default to m1.small): The ID or name of the flavor for the master
  • node_flavor (default to m1.medium): The ID or name of the flavor for the compute nodes
  • infra_flavor (default to m1.small): The ID or name of the flavor for the infrastructure nodes
  • network_prefix (default to openshift-ansible-<cluster_id>): prefix prepended to all network objects (net, subnet, router, security groups)
  • dns (default to 8.8.8.8,8.8.4.4): comma separated list of DNS to use
  • net_cidr (default to 192.168.<rand()>.0/24): CIDR of the network created by heat_stack.yaml
  • external_net (default to external): Name of the external network to connect to
  • floating_ip_pool (default to external): comma separated list of floating IP pools
  • ssh_from (default to 0.0.0.0/0): IPs authorized to connect to the VMs via ssh
  • node_port_from (default to 0.0.0.0/0): IPs authorized to connect to the services exposed via nodePort

Creating a cluster

  1. To create a cluster with one master and two nodes
  bin/cluster create openstack <cluster-id>
  1. To create a cluster with one master and three nodes, a custom VM image and custom DNS:
  bin/cluster create -n 3 -o image_name=rhel-7.1-openshift-2015.05.21 -o dns=172.16.50.210,172.16.50.250 openstack lenaic

Updating a cluster

  1. To update the cluster
  bin/cluster update openstack <cluster-id>

Terminating a cluster

  1. To terminate the cluster
  bin/cluster terminate openstack <cluster-id>