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Testing framework for deploying OpenStack using Chef
This is the testing framework for OpenStack deployed using Chef. We leverage this to test against our changes to our cookbooks to make sure that you can still build a cluster from the ground up with any changes we introduce.
This framework also gives us an opportunity to show different Reference Architectures and a sane example on how to start with OpenStack using Chef.
master branch of the cookbooks, which is currently tied to the base
OpenStack Ocata release, this supports deploying to Ubuntu 16.04 and CentOS 7
in monolithic, or allinone, and non-HA multinode configurations with Neutron. The cookbooks support a fully
HA configuration, but we do not test for that as there are far numerous paths to
- ChefDK 1.0 or later for a relatively recent Berkshelf
- Vagrant 1.9 or later with VirtualBox or some other provider
Getting the Code (this repo)
$ git clone https://github.com/openstack/openstack-chef-repo.git $ cd openstack-chef-repo
The OpenStack cookbooks by default use encrypted data bags for configuring
passwords. There are four data bags : user_passwords, db_passwords,
service_passwords, secrets. There already exists a
so you shouldn't need to create any for a proof of concept. If you do, something is wrong.
See the Data Bags doc for the gory details.
For each deployment model, there is a corresponding file in the doc/ directory. Please review that for specific details and additional setup that might be required before deploying the cloud.
Rake Deploy Commands
These commands will produce various OpenStack cluster configurations, the simplest being a monolithic Compute Controller with Neutron (allinone). These deployments are not intended to be production-ready, and will need adaptation to your environment. This is intended for development and proof of concept deployments.
For CentOS, set the environment variable REPO_OS=centos7. Ubuntu is the default.
Everything self-contained (allinone)
# allinone with Neutron $ chef exec rake allinone
Access the machine
$ cd vms $ vagrant ssh controller $ sudo su -
Multiple nodes (non-HA)
# Multinode with Neutron (1 controller + 1 network + 2 compute nodes) $ chef exec rake multi_node
Access the Controller
$ cd vms $ vagrant ssh controller $ sudo su -
Access the Network Node
$ cd vms $ vagrant ssh network $ sudo su -
Access the Compute nodes
$ cd vms $ vagrant ssh compute1 # OR $ vagrant ssh compute2 $ sudo su -
Testing The Controller
# Access the controller as noted above $ source /root/openrc $ nova --version $ openstack service list && openstack hypervisor list $ openstack image list $ openstack user list $ openstack server list
Working With Security Groups
To allow SSH access to instances, a security group is defined as follows:
$ openstack security group list $ openstack security group list default $ openstack security group create allow_ssh --description "allow ssh to instances" $ openstack security group rule create allow_ssh --protocol tcp --dst-port 22:22 --remote-ip 0.0.0.0/0 $ openstack security group list allow_ssh
Working With Keys
To allow SSH keys to be injected into instance, a key pair is defined as follows:
# generate a new key pair $ openstack keypair create mykey > mykey.pem $ chmod 600 mykey.pem $ openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey # verify the key pair has been imported $ openstack keypair list
Booting up a cirros image on the Controller
$ openstack server create --flavor 1 --image cirros --security-group allow_ssh --key-name mykey test
Wait a few seconds and the run
openstack server list if Status is not Active, wait a few seconds and repeat.
Once status is active you should be able to log in using SSH, or
vagrant ssh <vm_name>
$ ssh cirros@<ip address from openstack server list output>
Accessing The OpenStack Dashboard
If you would like to use the OpenStack dashboard you should go to https://localhost:9443 and the username and password is
Verifying OpenStack With Tempest
If you log in to the
controller machine you can test via the most recent Tempest release.
$ cd vms $ vagrant ssh <controller> $ sudo su - root@controller:~ cd /opt/tempest root@controller:/opt/tempest$ ./run_tempest.sh -V --smoke --serial [-- snip --] tempest.tests.test_wrappers.TestWrappers test_pretty_tox 1.68 test_pretty_tox_fails 1.03 test_pretty_tox_serial 0.61 test_pretty_tox_serial_fails 0.55 Ran 233 tests in 13.869s OK Running flake8 ... root@controller:/opt/tempest#
To remove all the nodes and start over again with a different environment or different environment attribute overrides, using the following rake command.
$ chef exec rake destroy_machines
To refresh all cookbooks, use the following commands.
$ rm -rf cookbooks $ chef exec rake berks_vendor
To clean up everything, use the following rake command.
$ chef exec rake clean
See the doc/tools.md for more information.
Some basic information about the use of data bags within this repo.
# Show the list of data bags $ chef exec knife data bag list -z db_passwords secrets service_passwords user_passwords # Show the list of data bag items $ chef exec knife data bag show db_passwords -z cinder dash glance horizon keystone neutron nova # Show contents of data bag item $ chef exec knife data bag show db_passwords nova -z Encrypted data bag detected, decrypting with provided secret. nova: mypass id: nova # Update contents of data bag item # set EDITOR env var to your editor. eg. EDITOR=vi $ chef exec knife data bag edit secrets dispersion_auth_user -z
Data Bag Default Values
db_passwords are set to "mypass" secrets are set to "_token" service_passwords are set to "mypass" user_passwords are set to "mypass"
Default Encrypted Data Bag Secret
The default secret is stored here .chef/encrypted_data_bag_secret and referenced by .chef/knife.rb.
When we say defaults, we mean that they are known by everyone with access to this repository. Change these to something else before deploying for real.
Known Issues and Workarounds
When using this on a Windows platform, here are some tweaks to make this work:
- In order to get SSH to work, you will need an SSL client installed. You can use the one that comes with Git for Windows. You will need to append
C:\Program Files (x86)\Git\bin;to the system PATH.
- Support for floating IPs
- Better instructions for multi-node network setup
- Easier debugging. Maybe a script to pull the logs from the controller.
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