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Linux kit meetup_v1.0.0


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Build Immutable OS for containers with LinuxKit

Published in: Technology
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Linux kit meetup_v1.0.0

  1. 1. Anshul Patel
  2. 2. What is LinuxKit ● Toolkit for building secure, portable & lean operating system for containers. ● Built with containers, for running containers. ● All Operating system services are containers. ● Operating system services are pluggable. ● Operating system is built using Moby tool.
  3. 3. Purpose of LinuxKit ● Creates Immutable Operating Systems. ● Provides Declarative way for creating Operating Systems. ● Build the whole system in CI pipeline which guarantees reproducible builds & reliability. ● Suitable for Cloud, VMs and Bare-Metals.
  4. 4. LinuxKit YAML config file ● Kernel - Specifies Kernel Image version and parameters ● Init - Components which will be part of initrd ● Onboot - One-off containers executed during boot. They get terminated after execution ● Services - Long running process which will serve the incoming requests. ● Files - Copy local files to Operating System ● Trust - Components which are required to be cryptographically verified with Docker Content Trust.
  5. 5. Example
  6. 6. Security ● Include only components which are required. ● Provides Ability to use latest Kernel. ● Containerized Operating System services, hence minimal privileges. ● Smaller attack surface. ● Immutable Infrastructure, only namespaced container data and stateful partitions can be modified.
  7. 7. Support Best Supported ● Hyperkit, VMware(Pro), Qemu/KVM ● GCE, In Progress ● AWS, Azure, Windows, BlueMix Planned ● ARM
  8. 8. Demo
  9. 9. Ongoing/Future Developments ● Rewrite in type safe languages such as Rust. ● Blueprints/Samples for different platforms. ● Improve APIs. ● Integration with Infrakit to run cluster of instances running Kubernetes/Swarm. ● Integration with other orchestration tools like VMware VCloud Director, Terraform.
  10. 10. Questions? Thank You!