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Streamlining the transition from CentOS Linux to RHEL using automation

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Efficiently Managing the Shift from CentOS Linux to RHEL through Automation

The deadline for CentOS Linux 7’s End of Life (EOL) is closing in, set for June 30, 2024. Once this occurs, security updates and maintenance will cease, posing risks for organizations using this outdated system. To ensure a secure and functional environment, it’s crucial to transition to a supported platform like Red Hat Enterprise Linux (RHEL).

CentOS Linux to RHEL Migration Simplified

Migrating multiple systems from CentOS Linux to RHEL manually can be complex, especially with various infrastructure dependencies in place. Leveraging Red Hat Ansible Automation Platform can streamline this process, addressing scalability and dependencies while enabling seamless migration.

Overview of Red Hat Ansible Automation Platform integrations

An example scenario could involve migrating application servers linked to firewalls, load balancers, and databases. Preparatory tasks like updating dependent systems and data backups are essential. Employing Ansible Playbooks ensures standardized processes for consistency, with the added assistance of Red Hat’s Ansible Lightspeed AI for playbook creation.

CentOS Linux Upgrade Workflow

Automating snapshots of systems is critical for both CentOS Linux-RHEL migration and RHEL upgrades, facilitating quick data recovery if needed. The Ansible Automation Platform offers validated content and expert automation solutions on console.redhat.com.

Ansible Automation Platform content collections

To begin the conversion process, utilizing the infra.convert2rhel collection with predefined roles simplifies the migration using the Convert2RHEL framework. Employing playbooks can automate migration tasks, ensuring a smooth transition to RHEL.

Ensuring a Smooth Transition to RHEL

After migrating from CentOS Linux to RHEL 7, upgrading further to RHEL 8 is recommended using the LEAPP upgrading tool framework. Red Hat offers Extended Life Cycle Support (ELS) subscriptions for RHEL 7 to aid in long-term system maintenance.

The infrastructure.leapp content provides roles for pre-upgrade steps, including generating reports, identifying issues, and upgrading systems. Automation aids in remediating common issues found during assessments, enhancing the upgrade process.

Enhancing Upgrade Efficiency

Utilizing Ansible Automation Platform streamlines systems remediation, automation deployment, and snapshot creation for seamless system upgrades. Ansible validation content simplifies the upgrade process, ensuring efficient and error-free transitions.

Post-upgrade tasks like system configuration, integration, compliance checks, and performance monitoring can also be automated, enhancing system management and maintenance post-upgrade.

Incorporating automation analytics ensures process transparency and helps in identifying and resolving anomalies efficiently, ensuring a successful transition process.

For More Information

Source: Automating Your CentOS to RHEL Migration

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