Base
Hardened build
minimal ports, security patches applied at build time
CentOS Linux 8
Azure
Operating Systems
CentOS Linux 8, the community RHEL 8 rebuild, patched to its final vault release for legacy migration
Overview
CentOS Linux 8 is a community rebuild of Red Hat Enterprise Linux 8, binary compatible with the RHEL 8 platform. This image tracks 8.5.2111, the final CentOS Linux 8 release. CentOS Linux 8 reached end of life on 31 December 2021 and receives no further upstream security updates; the image is brought fully up to date against the frozen CentOS vault package set at build time and is provided for legacy migration work, moving an application off an existing CentOS 8 estate, reproducing a CentOS 8 build environment, or running software certified against the RHEL 8 ABI while a migration is planned.
For a currently supported platform, cloudimg also publishes CentOS Stream 9 and 10, Rocky Linux 8, 9 and 10, and AlmaLinux 8, 9 and 10.
Why the cloudimg image
The cloudimg image solves the two problems that make an end of life CentOS 8 hard to stand up on Azure: it repoints every repository to the CentOS vault so dnf still works, and it injects and enables the Azure Linux Agent that the stock CentOS 8 cloud image never shipped. It is patched to the final 8.5.2111 vault package set, has no baked in credential (access is by the SSH key you choose at launch, root is locked, SSH is key only), regenerates its machine identity and host keys per instance, and ships only port 22. The end of life status and patched to capture date posture are disclosed up front, and 24/7 support covers the image and its deployment.
Common uses
- Migrating an application off an existing CentOS 8 estate to a supported platform
- Reproducing a CentOS 8 build or test environment for a legacy application
- Running software certified against the RHEL 8 / CentOS 8 ABI during a planned migration
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