CloudStack Management Server (Standalone)

Prepare the Operating System

The OS must be prepared to host the Management Server using the following steps. These steps must be performed on each Management Server node.

1. Log in to your OS as root.

2. Check for a fully qualified hostname.

   hostname --fqdn
   

   This should return a fully qualified hostname such as “management1.lab.example.org”. If it does not, edit /etc/hosts so that it does.

3. Make sure that the machine can reach the Internet.

   ping cloudstack.apache.org
   

4. Turn on NTP for time synchronization.

   Note

   An NTP daemon is required to synchronize the clocks of the servers in your cloud.

   Install chrony.

   In RHEL or CentOS:

   $ yum install chrony

   n RHEL or CentOS:

   Yum repository information is found under /etc/yum.repos.d. You’ll see several .repo files in this directory, each one denoting a specific repository.

   To add the CloudStack repository, create /etc/yum.repos.d/cloudstack.repo and insert the following information.

   In the case of RHEL being used, you can replace ‘centos’ by ‘rhel’ in the value of baseurl

   [cloudstack]
   name=cloudstack
   baseurl=http://download.cloudstack.org/centos/$releasever/4.21/
   enabled=1
   gpgcheck=0

   Now update your local apt cache.

   sudo apt update
   

   Your DEB package repository should now be configured and ready for use.

   Install on CentOS/RHEL

   yum install cloudstack-management

   Step #2: Install MariaDB

   AlmaLinux 9 provides a MariaDB package directly in its official repositories. To install the MariaDB server with all necessary dependencies, execute the following command:

   sudo dnf install mariadb-server -y

   Open the MySQL configuration file. The configuration file is /etc/my.cnf.d/mariadb-server.cnf.

   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 one Management Server.

   innodb_rollback_on_timeout=1
   innodb_lock_wait_timeout=600
   max_connections=350
   log_bin=mysql-bin
   binlog_format=ROW

   Start and Enable the MariaDB Service

   Once you have installed the MariaDB package, start and enable the service to launch automatically on the system boot.

   # sudo systemctl start mariadb

   sudo systemctl enable mariadb

   Run the following command to secure your installation. You can answer “Y” to all questions.

    

   mysql_secure_installation

   loudStack can be blocked by security mechanisms, such as SELinux. Disable SELinux to ensure + that the Agent has all the required permissions.

   Configure SELinux (RHEL and CentOS):

   1. Check whether SELinux is installed on your machine. If not, you can skip this section.

      In RHEL or CentOS, SELinux is installed and enabled by default. You can verify this with:

      rpm -qa | grep selinux

      1. Set the SELINUX variable in /etc/selinux/config to “permissive”. This ensures that the permissive setting will be maintained after a system reboot.

         In RHEL or CentOS:

         vi /etc/selinux/config
         

         Change the following line

         SELINUX=enforcing
         

         to this:

         SELINUX=permissive
         

      2. Set SELinux to permissive starting immediately, without requiring a system reboot.

          

         setenforce permissive

         In a production environment, selinux should be set to enforcing and the necessary selinux policies are created to allow the services to run.