Redhat / CentOS
Install on Redhat / CentOS
Fluent Bit is distributed as fluent-bit package and is available for the latest stable CentOS system.
The following architectures are supported
x86_64
aarch64 / arm64v8
For CentOS 9+ we use CentOS Stream as the canonical base system.
Single line install
A simple installation script is provided to be used for most Linux targets. This will always install the most recent version released.
This is purely a convenience helper and should always be validated prior to use. The recommended secure deployment approach is to follow the instructions below.
CentOS 8
CentOS 8 is now EOL so the default Yum repositories are unavailable.
Make sure to configure to use an appropriate mirror, for example:
An alternative is to use Rocky or Alma Linux which should be equivalent.
Configure Yum
We provide fluent-bit through a Yum repository. In order to add the repository reference to your system, please add a new file called fluent-bit.repo in /etc/yum.repos.d/ with the following content:
It is best practice to always enable the gpgcheck and repo_gpgcheck for security reasons. We sign our repository metadata as well as all of our packages.
Updated key from March 2022
The GPG Key fingerprint of the new key is:
The GPG Key fingerprint of the old key is:
Install
Once your repository is configured, run the following command to install it:
Now the following step is to instruct Systemd to enable the service:
If you do a status check, you should see a similar output like this:
The default configuration of fluent-bit is collecting metrics of CPU usage and sending the records to the standard output, you can see the outgoing data in your /var/log/messages file.
FAQ
Yum install fails with a "404 - Page not found" error for the package mirror
The fluent-bit.repo file for the latest installations of Fluent-Bit uses a $releasever variable to determine the correct version of the package to install to your system:
Depending on your Red Hat distribution version, this variable may return a value other than the OS major release version (e.g., RHEL7 Server distributions return "7Server" instead of just "7"). The Fluent-Bit package url uses just the major OS release version, so any other value here will cause a 404.
In order to resolve this issue, you can replace the $releasever variable with your system's OS major release version. For example:
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