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| <section id="management-server-install-db-external"> |
| <title>Install the Database on a Separate Node</title> |
| <para>This section describes how to install MySQL on a standalone machine, separate from the |
| Management Server. This technique is intended for a deployment that includes several Management |
| Server nodes. If you have a single-node Management Server deployment, you will typically use the |
| same node for MySQL. See <xref linkend="management-server-install-db-local"/>.</para> |
| <note> |
| <para>The management server doesn't require a specific distribution for the MySQL node. You can |
| use a distribution or Operating System of your choice. Using the same distribution as the |
| management server is recommended, but not required. See <xref |
| linkend="management-server-system-requirements"/>.</para> |
| </note> |
| <orderedlist> |
| <listitem> |
| <para>Install MySQL from the package repository from your distribution:</para> |
| <para condition="community">On RHEL or CentOS:</para> |
| <programlisting language="Bash">yum install mysql-server</programlisting> |
| <para condition="community">On Ubuntu:</para> |
| <programlisting language="Bash">apt-get install mysql-server</programlisting> |
| </listitem> |
| <listitem> |
| <para>Edit the MySQL configuration (/etc/my.cnf or /etc/mysql/my.cnf, depending on your OS) |
| and insert the following lines in the [mysqld] section. You can put these lines below the |
| datadir line. The max_connections parameter should be set to 350 multiplied by the number of |
| Management Servers you are deploying. This example assumes two Management Servers.</para> |
| <note> |
| <para>On Ubuntu, you can also create /etc/mysql/conf.d/cloudstack.cnf file and add these |
| directives there. Don't forget to add [mysqld] on the first line of the file.</para> |
| </note> |
| <programlisting language="Bash">innodb_rollback_on_timeout=1 |
| innodb_lock_wait_timeout=600 |
| max_connections=700 |
| log-bin=mysql-bin |
| binlog-format = 'ROW' |
| bind-address = 0.0.0.0</programlisting> |
| </listitem> |
| <listitem> |
| <para>Start or restart MySQL to put the new configuration into effect.</para> |
| <para>On RHEL/CentOS, MySQL doesn't automatically start after installation. Start it |
| manually.</para> |
| <programlisting language="Bash">service mysqld start</programlisting> |
| <para>On Ubuntu, restart MySQL.</para> |
| <programlisting language="Bash">service mysql restart</programlisting> |
| </listitem> |
| <listitem> |
| <para>(CentOS and RHEL only; not required on Ubuntu)</para> |
| <warning> |
| <para>On RHEL and CentOS, MySQL does not set a root password by default. It is very strongly |
| recommended that you set a root password as a security precaution.</para> |
| </warning> |
| <para>Run the following command to secure your installation. You can answer "Y" to all |
| questions except "Disallow root login remotely?". Remote root login is required to set up |
| the databases.</para> |
| <programlisting language="Bash">mysql_secure_installation</programlisting> |
| </listitem> |
| <listitem> |
| <para>If a firewall is present on the system, open TCP port 3306 so external MySQL connections |
| can be established.</para> |
| <para>On Ubuntu, UFW is the default firewall. Open the port with this command:</para> |
| <programlisting language="Bash">ufw allow mysql</programlisting> |
| <para>On RHEL/CentOS:</para> |
| <orderedlist numeration="loweralpha"> |
| <listitem> |
| <para>Edit the /etc/sysconfig/iptables file and add the following line at the beginning of |
| the INPUT chain.</para> |
| <programlisting language="Bash">-A INPUT -p tcp --dport 3306 -j ACCEPT</programlisting> |
| </listitem> |
| <listitem> |
| <para>Now reload the iptables rules.</para> |
| <programlisting language="Bash">service iptables restart</programlisting> |
| </listitem> |
| </orderedlist> |
| </listitem> |
| <listitem> |
| <para>Return to the root shell on your first Management Server.</para> |
| </listitem> |
| <listitem> |
| <para>Set up the database. The following command creates the cloud user on the |
| database.</para> |
| <itemizedlist> |
| <listitem> |
| <para>In dbpassword, specify the password to be assigned to the cloud user. You can choose |
| to provide no password.</para> |
| </listitem> |
| <listitem> |
| <para>In deploy-as, specify the username and password of the user deploying the database. |
| In the following command, it is assumed the root user is deploying the database and |
| creating the cloud user.</para> |
| </listitem> |
| <listitem> |
| <para>(Optional) For encryption_type, use file or web to indicate the technique used to |
| pass in the database encryption password. Default: file. See <xref |
| linkend="about-password-encryption"/>.</para> |
| </listitem> |
| <listitem> |
| <para>(Optional) For management_server_key, substitute the default key that is used to |
| encrypt confidential parameters in the &PRODUCT; properties file. Default: password. It |
| is highly recommended that you replace this with a more secure value. See About Password |
| and Key Encryption.</para> |
| </listitem> |
| <listitem> |
| <para>(Optional) For database_key, substitute the default key that is used to encrypt |
| confidential parameters in the &PRODUCT; database. Default: password. It is highly |
| recommended that you replace this with a more secure value. See <xref |
| linkend="about-password-encryption"/>.</para> |
| </listitem> |
| <listitem> |
| <para>(Optional) For management_server_ip, you may explicitly specify cluster management |
| server node IP. If not specified, the local IP address will be used.</para> |
| </listitem> |
| </itemizedlist> |
| <programlisting language="Bash">cloudstack-setup-databases cloud:<dbpassword>@<ip address mysql server> \ |
| --deploy-as=root:<password> \ |
| -e <encryption_type> \ |
| -m <management_server_key> \ |
| -k <database_key> \ |
| -i <management_server_ip></programlisting> |
| <para>When this script is finished, you should see a message like “Successfully initialized |
| the database.”</para> |
| </listitem> |
| </orderedlist> |
| </section> |