Installation

updated: 2019-04-10 01:01

Installation¶

There are in general two ways to install Senlin service: you can install it via devstack, or you install it manually, following the steps outlined in this document.

Install via Devstack¶

This is the recommended way to install the Senlin service. Please refer to following detailed instructions.

Download DevStack:

$ git clone https://git.openstack.org/openstack-dev/devstack
$ cd devstack

Add following repo as external repositories into your local.conf file:

[[local|localrc]]
#Enable senlin
enable_plugin senlin https://git.openstack.org/openstack/senlin
#Enable senlin-dashboard
enable_plugin senlin-dashboard https://git.openstack.org/openstack/senlin-dashboard

Optionally, you can add a line SENLIN_USE_MOD_WSGI=True to the same local.conf file if you prefer running the Senlin API service under Apache.

Run ./stack.sh:
```
$ ./stack.sh
```

Note that Senlin client is also installed when following the instructions.

Manual Installation¶

Install Senlin Server¶

Get Senlin source code from OpenStack git repository.

$ cd /opt/stack
$ git clone https://git.openstack.org/openstack/senlin.git

Install Senlin with required packages.

$ cd /opt/stack/senlin
$ sudo pip install -e .

Register Senlin clustering service with keystone.

This can be done using the setup-service script under the tools folder.

NOTE: Suppose you have devstack installed under the /opt/devstack folder

$ source /opt/devstack/openrc admin admin
$ cd /opt/stack/senlin/tools
$ ./setup-service <HOST IP> <SERVICE_PASSWORD>

Generate configuration file for the Senlin service.

$ cd /opt/stack/senlin
$ tools/gen-config
$ sudo mkdir /etc/senlin
$ sudo cp etc/senlin/api-paste.ini /etc/senlin
$ sudo cp etc/senlin/policy.json /etc/senlin
$ sudo cp etc/senlin/senlin.conf.sample /etc/senlin/senlin.conf

Edit file /etc/senlin/senlin.conf according to your system settings. The most common options to be customized include:

[database]
connection = mysql://senlin:<MYSQL_SENLIN_PW>@127.0.0.1/senlin?charset=utf8

[keystone_authtoken]
auth_uri = http://<HOST>:5000/v3
auth_version = 3
cafile = /opt/stack/data/ca-bundle.pem
identity_uri = http://<HOST>:35357
admin_user = senlin
admin_password = <SENLIN PASSWORD>
admin_tenant_name = service

[authentication]
auth_url = http://<HOST>:5000/v3
service_username = senlin
service_password = <SENLIN PASSWORD>
service_project_name = service

[oslo_messaging_rabbit]
rabbit_userid = <RABBIT USER ID>
rabbit_hosts = <HOST>
rabbit_password = <RABBIT PASSWORD>

[oslo_messaging_notifications]
driver = messaging

For more comprehensive helps on configuration options, please refer to Configuration Options documentation.

Create Senlin Database.

Create Senlin database using the senlin-db-recreate script under the tools subdirectory. Before calling the script, you need edit it to customize the password you will use for the senlin user. You need to update this script with the <DB PASSWORD> entered in step4.

$ cd /opt/stack/senlin/tools
$ ./senlin-db-recreate

Start senlin engine and api service.

You may need two consoles for the services i.e., one for each service.

$ senlin-engine --config-file /etc/senlin/senlin.conf
$ senlin-api --config-file /etc/senlin/senlin.conf

Install Senlin Client¶

Get Senlin client code from OpenStack git repository.

$ cd /opt/stack
$ git clone https://git.openstack.org/openstack/python-senlinclient.git

Install senlin client.

$ cd python-senlinclient
$ sudo python setup.py install

Verify Your Installation¶

To check whether Senlin server and Senlin client have been installed successfully, run command openstack cluster build info in a console. The installation is successful if the command output looks similar to the following.

$ openstack cluster build info
+--------+---------------------+
| Field  | Value               |
+--------+---------------------+
| api    | {                   |
|        |   "revision": "1.0" |
|        | }                   |
| engine | {                   |
|        |   "revision": "1.0" |
|        | }                   |
+--------+---------------------+

You are ready to begin your journey (aka. adventure) with Senlin, now.