Latest postDeep dive into cloud-init: instance customization and metadata delivery in OpenStack
Comprehensive guide to cloud-init in OpenStack: understand metadata delivery through Config Drive and Metadata Service (169.254.169.254), ML2/OVN network architecture with namespace isolation, four boot stages (local, network, config, final), module execution frequencies, and debugging techniques for troubleshooting. Includes practical examples for Linux and Windows instances using cloud-config, shell scripts, and MIME multi-part formats.