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README_openstack.md

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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 RHEL / CentOS / Fedora:

  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

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>