Automated OpenStack instance configuration with cloud-init and metadata service

Cloud Creator

The Future of Cloud Administration

The cloud-init script brings the cloud computing experience to a new level. Today, the administration and operation of a cloud infrastructure wouldn't make sense without automation mechanisms like cloud-init in cooperation with the central instance configuration database (i.e., a metadata service). Cloud-init allows you to configure a large number of virtual machines in the cloud, coming from different projects, with just a few previously prepared instance configuration data files. The number of user data input file formats and the variety of methods available to pass user data to an instance makes this automation script a powerful and flexible tool that aids OpenStack administrators in their daily work. Furthermore, cloud-init is available for many cloud platforms besides OpenStack (e.g., Amazon EC2, Microsoft Azure, VMware, Apache CloudStack), which makes it a leader in the IT market in the field of assets configuration across multiple cloud technologies.

The Author

Grzegorz Juszczak is a system engineer at the Nokia 5G Infrastructure Laboratory in Wroclaw, Poland, a Linux and OpenStack enthusiast, and founder of the technical blog about Linux, virtualization, and cloud computing.

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