Ansible-st2

Ansible playbooks to deploy StackStorm.

StackStorm is event-driven automation platform written in Python. With over 50+ integrations like GitHub, Docker, Nagios, NewRelic, AWS, Ansible it allows you to wire together your existing infrastructure into complex Workflows with auto-remediation and many more. Aka IFTTT orchestration for Ops.

Supported platforms

• Ubuntu Xenial (16.04)
• Ubuntu Bionic (18.04)
• RHEL7 / CentOS7
• RHEL8 / CentOS8

If you're using the provided Vagrantfile, note that it uses Bionic by default.

In order to access StackStorm Web UI, please don't forget to ensure that http/https ports are opened in your firewall system.

Requirements

At least 2GB of memory and 3.5GB of disk space is required, since StackStorm is shipped with RabbitMQ, PostgreSQL, Mongo, nginx and OpenStack Mistral.

Installation

# stackstorm
ansible-playbook stackstorm.yml

Variables

Below is the list of variables you can redefine in your playbook to customize st2 deployment:

Variable	Default	Description
st2repo
st2repo_name	stable	StackStorm PackageCloud repository to install. stable, unstable, staging-stable, staging-unstable
st2
st2_version	latest	StackStorm version to install. present to install available package, latest to get automatic updates, or pin it to numeric version like 2.2.0.
st2_revision	1	StackStorm revision to install. Used only with pinned st2_version.
st2_config	{}	Hash with StackStorm configuration settings to set in st2.conf ini file.
st2_system_user	stanley	System user from which st2 will execute local/remote shell actions.
st2_system_user_in_sudoers	yes	Add st2_system_user to the sudoers (recommended for most st2 features to work).
st2_ssh_key_file	/home/{{st2_system_user}}/.ssh/{{st2_system_user}}_rsa	Path to st2_system_user SSH private key. It will be autogenerated by default.
st2_auth_enable	yes	Enable StackStorm standalone authentication.
st2_auth_username	testu	Username used by StackStorm standalone authentication.
st2_auth_password	testp	Password used by StackStorm standalone authentication.
st2_save_credentials	yes	Save credentials for local CLI in /root/.st2/config file.
st2_packs	[ st2 ]	List of packs to install. This flag does not work with a --python3 only pack.
st2mistral
st2mistral_version	latest	st2mistral version to install. present to install available package, latest to get automatic updates, or pin it to numeric version like 2.2.0.
st2mistral_db	mistral	PostgreSQL DB name that will be created for Mistral.
st2mistral_db_username	mistral	PostgreSQL DB user that will be created for Mistral.
st2mistral_db_password	StackStorm	PostgreSQL DB password for Mistral.
st2mistral_config	{}	Hash with configuration settings to set in mistral.conf ini file.
st2web
st2web_ssl_certificate	null	String with custom SSL certificate (.crt). If not provided, self-signed certificate will be generated.
st2web_ssl_certificate_key	null	String with custom SSL certificate secret key (.key). If not provided, self-signed certificate will be generated.
st2web_nginx_config	null	String with a custom nginx configuration file (st2.conf). If not provided, the default st2.conf will be used.
ewc
ewc_license	null	EWC license key is required for installing EWC enteprise bits via this ansible role.
ewc_repo	enterprise	EWC PackageCloud repository to install. enterprise, enterprise-unstable, staging-enterprise, staging-enterprise-unstable
ewc_version	latest	EWC enterprise version to install. present to install available package, latest to get automatic updates, or pin it to numeric version like 2.2.0. The version used here should match st2_version.
ewc_revision	1	EWC enterprise revision to install. Used only with pinned ewc_version.
ewc_rbac	See ewc_rbac variable in role defaults	EWC RBAC roles and assignments. This is a dictionary with two keys roles and assignments. roles and assignments are in turn both arrays. Each element in the array follows the exact YAML schema for roles and assignments defined in EWC documentation.
ewc_ldap	See ewc_ldap variable in role defaults	Settings for EWC LDAP authentication backend. ewc_ldap is a dictionary and has one item backend_kwargs. backend_kwargs should be provided as exactly listed in EWC documentation for LDAP configuration.
st2chatops
st2chatops_version	latest	st2chatops version to install. present to install available package, latest to get automatic updates, or pin it to numeric version like 2.2.0.
st2chatops_st2_api_key		st2 API key to be updated in st2chatops.env using "st2 apikey create -k" in a task
st2chatops_hubot_adapter		Hubot Adapter to be used for st2chatops. Default is shell, but should be changed to one of the supported adapters.[Required]
st2chatops_config	{ }	Based on adapter in st2chatops_hubot_adapter, provide hash for the adapter settings, to update st2chatops.env. For example, for Slack hubot adapter: st2chatops_config: HUBOT_SLACK_TOKEN: xoxb-CHANGE-ME-PLEASE
st2chatops_version	latest	st2chatops version to install. Use latest to get automatic updates or pin it to numeric version like 2.2.0.

Examples

Install latest stable StackStorm with all its components on local machine:

ansible-playbook stackstorm.yml -i 'localhost,' --connection=local

Note that keeping latest version is useful to update StackStorm by re-running playbook, since it will reinstall st2 if there is new version available. This is default behavior. If you don't want updates - consider pinning version-revision numbers.

Install specific numeric version of st2 with pinned revision number as well:

ansible-playbook stackstorm.yml --extra-vars='st2_version=2.2.0 st2_revision=8'

Installing behind a proxy.

If you are installing from behind a proxy, you can use environment variables http_proxy, https_proxy, and no_proxy in the playbook. For the st2smoketests, you will need to disable proxy for localhost.

  environment:
    http_proxy: http://proxy.example.net:3128
    https_proxy: http://proxy.example.net:3128
    no_proxy: 127.0.0.1,localhost

Developing

There are a few requirements when developing on ansible-st2.

These are the platforms we must support (must pass end-to-end testing):

• Ubuntu Xenial
• Ubuntu Bionic
• CentOS7
• CentOS8
• RHEL7 (via AWS)
• RHEL8 (via AWS)

Must also support Ansible Idempotence (Eg. Ansible-playbook re-run should end with the following results: changed=0.*failed=0)

For development purposes there is Vagrantfile available. The following command will setup ubuntu18 box (ubuntu/bionic64) by default:

vagrant up

Other distros:

vagrant up ubuntu16
vagrant up centos7
vagrant up centos8

Other Installers

You might be interested in other methods to deploy StackStorm engine:

• Configuration Management

  • Chef Cookbook
  • Puppet Module

• Manual Instructions

  • Ubuntu 16.04
  • Ubuntu 18.04
  • RHEL8/CentOS8
  • RHEL7/CentOS7

Help

If you're in stuck, our community always ready to help, feel free to:

• Ask questions in our public Slack channel
• Report bug, provide feature request or just give us a ✮ star

Your contribution is more than welcome!