x/solar
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solar/README.md
Przemyslaw Kaminski 181a954d43 solar connections graph fix, README updated
2015-07-15 10:46:29 +02:00

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Setup development env

  • Install Vagrant
  • Setup environment:
cd solar
vagrant up
  • Login into vm, the code is available in /vagrant directory
vagrant ssh
solar --help
  • Launch standard deployment:
python example.py
  • Get ssh details for running slave nodes (vagrant/vagrant):
vagrant ssh-config
  • Get list of docker containers and attach to the foo container
sudo docker ps -a
sudo docker exec -it foo

Solar usage

  • To get data for the resource bar (raw and pretty-JSON):
solar resource show --tag 'resources/bar'
solar resource show --json --tag 'resources/bar' | jq .
solar resource show --name 'resource_name'
solar resource show --name 'resource_name' --json | jq .
  • To clear all resources/connections:
solar resource clear_all
solar connections clear_all
  • Some very simple cluster setup:
cd /vagrant

solar resource create node1 resources/ro_node/ '{"ip":"10.0.0.3", "ssh_key" : "/vagrant/.vagrant/machines/solar-dev1/virtualbox/private_key", "ssh_user":"vagrant"}'
solar resource create mariadb_service resources/mariadb_service '{"image": "mariadb", "root_password": "mariadb", "port": 3306}'
solar resource create keystone_db resources/mariadb_keystone_db/ '{"db_name": "keystone_db", "login_user": "root"}'
solar resource create keystone_db_user resources/mariadb_user/ user_name=keystone user_password=keystone  # another valid format

solar connect node1 mariadb_service
solar connect node1 keystone_db
solar connect mariadb_service keystone_db '{"root_password": "login_password", "port": "login_port"}'
# solar connect mariadb_service keystone_db_user 'root_password->login_password port->login_port'  # another valid format
solar connect keystone_db keystone_db_user

solar changes stage
solar changes commit

You can fiddle with the above configuration like this:

solar resource update keystone_db_user '{"user_password": "new_keystone_password"}'
solar resource update keystone_db_user user_password=new_keystone_password   # another valid format

solar changes stage
solar changes commit
  • Show the connections/graph:
solar connections show
solar connections graph

You can also limit graph to show only specific resources:

solar connections graph --start-with mariadb_service --end-with keystone_db
  • You can make sure that all input values are correct and mapped without duplicating your values with this command:
solar resource validate

Low level API

HAProxy deployment (not maintained)

cd /vagrant
python cli.py deploy haproxy_deployment/haproxy-deployment.yaml

or from Python shell:

from x import deployment

deployment.deploy('/vagrant/haproxy_deployment/haproxy-deployment.yaml')

Usage:

Creating resources:

from x import resource
node1 = resource.create('node1', 'x/resources/ro_node/', 'rs/', {'ip':'10.0.0.3', 'ssh_key' : '/vagrant/tmp/keys/ssh_private', 'ssh_user':'vagrant'})

node2 = resource.create('node2', 'x/resources/ro_node/', 'rs/', {'ip':'10.0.0.4', 'ssh_key' : '/vagrant/tmp/keys/ssh_private', 'ssh_user':'vagrant'})

keystone_db_data = resource.create('mariadb_keystone_data', 'x/resources/data_container/', 'rs/', {'image' : 'mariadb', 'export_volumes' : ['/var/lib/mysql'], 'ip': '', 'ssh_user': '', 'ssh_key': ''}, connections={'ip' : 'node2.ip', 'ssh_key':'node2.ssh_key', 'ssh_user':'node2.ssh_user'})

nova_db_data = resource.create('mariadb_nova_data', 'x/resources/data_container/', 'rs/', {'image' : 'mariadb', 'export_volumes' : ['/var/lib/mysql'], 'ip': '', 'ssh_user': '', 'ssh_key': ''}, connections={'ip' : 'node1.ip', 'ssh_key':'node1.ssh_key', 'ssh_user':'node1.ssh_user'})

to make connection after resource is created use signal.connect

To test notifications:

keystone_db_data.args    # displays node2 IP

node2.update({'ip': '10.0.0.5'})

keystone_db_data.args   # updated IP

If you close the Python shell you can load the resources like this:

from x import resource
node1 = resource.load('rs/node1')

node2 = resource.load('rs/node2')

keystone_db_data = resource.load('rs/mariadn_keystone_data')

nova_db_data = resource.load('rs/mariadb_nova_data')

Connections are loaded automatically.

You can also load all resources at once:

from x import resource
all_resources = resource.load_all('rs')

CLI

You can do the above from the command-line client:

cd /vagrant

python cli.py resource create node1 x/resources/ro_node/ rs/ '{"ip":"10.0.0.3", "ssh_key" : "/vagrant/tmp/keys/ssh_private", "ssh_user":"vagrant"}'

python cli.py resource create node2 x/resources/ro_node/ rs/ '{"ip":"10.0.0.4", "ssh_key" : "/vagrant/tmp/keys/ssh_private", "ssh_user":"vagrant"}'

python cli.py resource create mariadb_keystone_data x/resources/data_container/ rs/ '{"image": "mariadb", "export_volumes" : ["/var/lib/mysql"], "ip": "", "ssh_user": "", "ssh_key": ""}'

python cli.py resource create mariadb_nova_data x/resources/data_container/ rs/ '{"image" : "mariadb", "export_volumes" : ["/var/lib/mysql"], "ip": "", "ssh_user": "", "ssh_key": ""}'

# View resourcespython cli.py resource show rs/mariadb_keystone_data
# Show all resources at location rs/
python cli.py resource show rs/ --all

# Show resources with specific tagspython cli.py resources show rs/ --tag test

# Connect resourcespython cli.py connect rs/node2 rs/mariadb_keystone_data
python cli.py connect rs/node1 rs/mariadb_nova_data
# Test updatepython cli.py update rs/node2 '{"ip": "1.1.1.1"}'
python cli.py resource show rs/mariadb_keystone_data  # --> IP is 1.1.1.1

# View connections
python cli.py connections show

# Outputs graph to 'graph.png' file, please note that arrows don't have "normal" pointers, but just the line is thicker
# please see http://networkx.lanl.gov/_modules/networkx/drawing/nx_pylab.html
python cli.py connections graph

# Disconnect
python cli.py disconnect rs/mariadb_nova_data rs/node1

# Tag a resource:
python cli.py resource tag rs/node1 test-tags# Remove tagspython cli.py resource tag rs/node1 test-tag --delete