Description

Production

Multiple Linux servers with MySQL 5.6, configured in a master-slave replication configuration, and local database backups configured on the Master node with Holland.

Instructions

Getting Started

If you're new to MySQL, the Manual documentation will step you through the basics of configuration, connecting, user, and permission management.

By default, the "root" MySQL user can only connect from localhost (127.0.0.1). You will need to connect to the server and use the MySQL client in order to allow "root" to connect from external servers.

As a part of your server configuration, your server will be configured to run nightly backups leveraging Holland. Backups will be stored in the directory /var/lib/mysqlbackups directory on the master node.

Logging in via SSH

The private key provided in the passwords section can be used to login as root via SSH. We have an article on how to use these keys with Mac OS X and Linux as well as Windows using PuTTY.

Additional Notes

All write operations should be performed on the Master node. Read operations can be performed against any servers in this deployment. By default, all new and existing databases will be replicated across the members of this deployment.

Requirements

• A Heat provider that supports the following:
  • OS::Heat::RandomString
  • OS::Heat::ResourceGroup
  • OS::Heat::SoftwareConfig
  • OS::Heat::SoftwareDeployment
  • OS::Nova::KeyPair
  • OS::Nova::Server
• An OpenStack username, password, and tenant id.
• python-heatclient >= v0.2.8:

pip install python-heatclient

We recommend installing the client within a Python virtual environment.

Parameters

Parameters can be replaced with your own values when standing up a stack. Use the -P flag to specify a custom parameter.

• mysql_user: User to create within MySQL (Default: mysql_user)
• mysql_database: Database to create within MySQL. User defined in "MySQL User" will have full access to this database (Default: mysql_db)
• server_flavor: Flavor of Cloud Server to be used for all servers in this stack (Default: 4 GB General Purpose v1)
• server_count: Number of secondary web nodes (Default: 0)

Outputs

Once a stack comes online, use heat output-list to see all available outputs. Use heat output-show <OUTPUT NAME> to get the value of a specific output.

• mysql_public_ip: Master IP
• mysql_password: MySQL Root Password
• mysql_user_password: MySQL Password
• mysql_user: MySQL User
• ssh_private_key: SSH Private Key
• secondary_ips: Secondary Node IPs

For multi-line values, the response will come in an escaped form. To get rid of the escapes, use echo -e '<STRING>' > file.txt. For vim users, a substitution can be done within a file using %s/\\n/\r/g.