How to Install Redis on CloudLinux with CageFS?

Issue

How do I install Redis on a CloudLinux server with CageFS enabled?

Environment

• Cloudlinux
• CageFS

Solution

1.1. The Redis installation steps are the same as on any RHEL-based system: 

# yum install epel-release
# yum install redis --enablerepo=epel

1.2. Once done, start the Redis service via:

# systemctl start redis.service
# systemctl enable redis

1.3. You can check Redis’s status by running the following:

# sudo systemctl status redis.service

For Cloudlinux 9 / 10 you can use an alternative way to install Redis: https://redis.io/docs/latest/operate/oss_and_stack/install/install-stack/rpm/

2. What differs is that if CageFS is used on the server, you'll need to add the Redis package to CageFS skeleton:

# cagefsctl --addrpm redis
# cagefsctl --force-update

3. Once you confirm that Redis is indeed running, test the setup with this command:

# redis-cli ping
PONG

Note 1: The above commands will make Redis available from the CageFS inside; however, it still uses shared storage for multiple websites. The Redis ACL has to be used to address this case.

Check the Redis Quickstart page for more information.

Note 2: Redis Support for mod_hostinglimits is deprecated. Check out more about it in our documentation.

 

Useful Links

• https://redis.com/blog/getting-started-redis-6-access-control-lists-acls/
• https://redis.io/topics/quickstart
• https://docs.cloudlinux.com/cloudlinuxos/deprecated/#redis-support-for-hostinglimits
• https://cloudlinux.zendesk.com/hc/en-us/articles/22546812983964-How-to-Remove-Redis-on-CloudLinux-OS