OpenStack Cloud with Calico Networking
This bundle deploys a small OpenStack Cloud (Liberty release) on Ubuntu 14.04 LTS with Layer 3 networking by Project Calico, providing Dashboard, Compute, Network, Block Storage, Identity and Image services.
Servers should have:
- A minimum of 4GB of physical RAM.
- Enough CPU cores to support your capacity requirements.
juju quickstart u/project-calico/openstack-calico
- 1 Node for each OpenStack controller service.
- 2 Nodes for Nova Compute.
Neutron API, Nova Compute and Etcd services are designed to be horizontally scalable.
To horizontally scale Nova Compute:
juju add-unit nova-compute # Add one more unit juju add-unit -n5 nova-compute # Add 5 more units
To horizontally scale Neutron API:
juju add-unit neutron-api # Add one more unit juju add-unit -n2 neutron-api # Add 2 more unitsa
To horizontally scale Etcd:
juju add-unit etcd # Add one more unit juju add-unit -n2 etcd # add 2 more units
Note: Other services in this bundle can be scaled in conjunction with the hacluster charm to produce scalable, highly available services - that will be covered in a different bundle.
Ensuring it's working
To ensure your cloud is functioning correctly, download this bundle and then run through the following sections.
All commands are executed from within the expanded bundle.
Install OpenStack client tools
In order to configure and use your cloud, you'll need to install the appropriate client tools:
sudo apt-get -y install python-novaclient python-keystoneclient \ python-glanceclient python-neutronclient
Accessing the cloud
Check that you can access your cloud from the command line:
source novarc keystone catalog
You should get a full listing of all services registered in the cloud - which should include identity, compute, image and network.
Configuring an image
In order to run instances on your cloud, you'll need to upload an image to boot instances from:
mkdir -p ~/images wget -O ~/images/trusty-server-cloudimg-amd64-disk1.img \ http://cloud-images.ubuntu.com/trusty/current/trusty-server-cloudimg-amd64-disk1.img glance image-create --name="trusty" --visibility=public --progress \ --container-format=bare --disk-format=qcow2 \ < ~/images/trusty-server-cloudimg-amd64-disk1.img
For the purposes of a quick test, we'll setup a network on an internal subnet.
neutron net-create --shared calico-net neutron subnet-create calico-net 10.208.168.0/21 --name calico-subnet
This will allow VMs to communicate with each other; the easiest way to allow external connectivity is to add a route to that subnet pointed at any of the nova-compute instances.
In a production deployment you'd want to BGP peer your router into the deployed route reflector. For more information please consult the Calico External Connectivity documentation.
Booting an instance
First generate a SSH keypair so that you can access your instances once you've booted them:
nova keypair-add mykey > ~/.ssh/id_rsa_cloud
Note: you can also upload an existing public key to the cloud rather than generating a new one:
nova keypair-add --pub-key ~/.ssh/id_rsa.pub mykey
You can now boot an instance on your cloud:
nova boot --image trusty --flavor m1.small --key-name mykey \ trusty-test
Configuring and managing services on an OpenStack cloud is complex; take a look a the OpenStack Admin Guide for a complete reference on how to configure an OpenStack cloud for your requirements.
Useful Cloud URLs
- OpenStack Dashboard: http://openstack-dashboard_ip/horizon