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bootstrap | ||
docs | ||
examples | ||
library | ||
resources | ||
solar | ||
templates | ||
.gitignore | ||
config.yaml | ||
jenkins-config.yaml | ||
LICENSE | ||
README.md | ||
run_tests.sh | ||
snapshotter.py | ||
vagrant-settings.yaml | ||
vagrant-settings.yaml_defaults | ||
Vagrantfile |
Setup development env
Install Vagrant. For automatically installation of VirtualBox Guest Additions you could install vagrant plugin. Setup environment:
cd solar
vagrant up
Login into vm, the code is available in /vagrant directory
vagrant ssh
solar --help
Launch standard deployment:
python examples/openstack/openstack.py
Get ssh details for running slave nodes (vagrant/vagrant):
vagrant ssh-config
You can make/restore snapshots of boxes (this is way faster than reprovisioning them)
with the snapshotter.py
script:
./snapshotter.py take -n my-snapshot
./snapshotter.py show
./snapshotter.py restore -n my-snapshot
Solar usage
Basic flow is:
- Create some resources (look at
examples/openstack/openstack.py
) and connect them between each other, and place them on nodes. - Run
solar changes stage
(this stages the changes) - Run
solar changes process
(this prepares orchestrator graph, returning change UUID) - Run
solar orch run-once <change-uuid>
(orsolar orch run-once last
to run the lastly created graph) - Observe progress of orch with
watch 'solar orch report <change-uuid>'
(orwatch 'solar orch report last'
).
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 proccess
# <uid>
solar orch run-once <uid> # or solar orch run-once last
watch 'solar orch report <uid>' # or solar orch report last
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 proccess
<uid>
solar orch run-once <uid>
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
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
Disconnect
solar disconnect mariadb_service node1
Tag a resource:
solar resource tag node1 test-tags # Remove tags
solar resource tag node1 test-tag --delete
Low level API
Usage:
Creating resources:
from solar.core.resource import virtual_resource as vr
node1 = vr.create('node1', 'resources/ro_node/', 'rs/', {'ip':'10.0.0.3', 'ssh_key' : '/vagrant/tmp/keys/ssh_private', 'ssh_user':'vagrant'})[0]
node2 = vr.create('node2', 'resources/ro_node/', 'rs/', {'ip':'10.0.0.4', 'ssh_key' : '/vagrant/tmp/keys/ssh_private', 'ssh_user':'vagrant'})[0]
keystone_db_data = vr.create('mariadb_keystone_data', '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'})[0]
nova_db_data = vr.create('mariadb_nova_data', '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'})[0]
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 solar.core import resource
node1 = resource.load('rs/node1')
node2 = resource.load('rs/node2')
keystone_db_data = resource.load('rs/mariadb_keystone_data')
nova_db_data = resource.load('rs/mariadb_nova_data')
Connections are loaded automatically.
You can also load all resources at once:
from solar.core import resource
all_resources = resource.load_all('rs')
Dry run
Solar CLI has possibility to show dry run of actions to be performed. To see what will happen when you run Puppet action, for example, try this:
solar resource action keystone_puppet run -d
This should print out something like this:
EXECUTED:
73c6cb1cf7f6cdd38d04dd2d0a0729f8: (0, 'SSH RUN', ('sudo cat /tmp/puppet-modules/Puppetfile',), {})
3dd4d7773ce74187d5108ace0717ef29: (1, 'SSH SUDO', ('mv "1038cb062449340bdc4832138dca18cba75caaf8" "/tmp/puppet-modules/Puppetfile"',), {})
ae5ad2455fe2b02ba46b4b7727eff01a: (2, 'SSH RUN', ('sudo librarian-puppet install',), {})
208764fa257ed3159d1788f73c755f44: (3, 'SSH SUDO', ('puppet apply -vd /tmp/action.pp',), {})
By default every mocked command returns an empty string. If you want it to return something else (to check how would dry run behave in different situation) you provide a mapping (in JSON format), something along the lines of:
solar resource action keystone_puppet run -d -m "{\"73c\": \"mod 'openstack-keystone'\n\"}"
The above means the return string of first command (with hash 73c6c...
) will be
as specified in the mapping. Notice that in mapping you don't have to specify the
whole hash, just it's unique beginning. Also, you don't have to specify the whole
return string in mapping. Dry run executor can read file and return it's contents
instead, just use the >
operator when specifying hash:
solar resource action keystone_puppet run -d -m "{\"73c>\": \"./Puppetlabs-file\"}"
Resource compiling
You can compile all meta.yaml
definitions into Python code with classes that
derive from Resource
. To do this run
solar resource compile_all
This generates file resources_compiled.py
in the main directory (do not commit
this file into the repo). Then you can import classes from that file, create
their instances and assign values just like these were normal properties.
If your editor supports Python static checking, you will have autocompletion
there too. An example on how to create a node with this:
import resources_compiled
node1 = resources_compiled.RoNodeResource('node1', None, {})
node1.ip = '10.0.0.3'
node1.ssh_key = '/vagrant/.vagrant/machines/solar-dev1/virtualbox/private_key'
node1.ssh_user = 'vagrant'
Higher-level API
There's also a higher-level API that allows to write resource instances in more
functional way, and in particular avoid for
loops. Here's an example:
from solar import template
nodes = template.nodes_from('templates/riak_nodes.yaml')
riak_services = nodes.on_each(
'resources/riak_node',
{
'riak_self_name': 'riak{num}',
'riak_hostname': 'riak_server{num}.solar',
'riak_name': 'riak{num}@riak_server{num}.solar',
}
)
riak_master_service = riak_services.take(0)
riak_slave_services = riak_services.tail()
riak_master_service.connect_list(
riak_slave_services,
{
'riak_name': 'join_to',
}
)
For full Riak example, please look at examples/riak/riaks-template.py
.
Full documentation of individual functions is found in the solar/template.py
file.