The speed of containers, the security of VMs. KataContainers.io
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1 * The speed of containers, the security of VMs KataContainers.io
2 Contents Project Overview Technical Details Governance Get Involved
3 History Intel Clear Containers * May 2015 Dec 2017 *Other names and brands may be claimed as the property of others.
4 Technical Vision Light and fast VM-based containers Merge Intel Clear Containers and Hyper runv technologies Seamless integration with Kubernetes (CRI), Docker and Openstack Support multiple architectures (x86 today; others to come in the future) Support multiple hypervisors (KVM today; others to come in the future)
5 Intel Clear Containers Multi Architecture Multi Hypervisor Full Hotplug K8s Multi Tenancy VM templating Frakti native support Traffic Controller net Direct Device Assignment SRIOV NVDIMM Multi-OS KSM throttling CRI-O native support MacVTap, multi-queue net
6 Non-Technical Goals Open and vendor-neutral project All VM based containers, users and consumers under the same project Managed at the OpenStack Foundation* Independent from the OpenStack* software project
7 Containers in Cloud Container A Container B Container C App A App B App C Middleware A Middleware B Middleware C Linux* Kernel Virtual Machine Linux Kernel Server Hardware
8 Hypervisor Based Containers Container A Container B Container C App A App B App C Middleware A Middleware B Middleware C Linux Kernel A Linux Kernel B Linux Kernel C Virtual Machine Virtual Machine Virtual Machine Linux* Kernel Server Hardware Each container/pod is hypervisor isolated As secure as a VM As fast as a container Seamless integration with the container ecosystem and management layers
9 Isolation Speed
10 Technical Details
11 Virtual Machine I/O OCI cmd/spec Container Command Container Exec Shim Shim grpc Proxy Hypervisor serial interface Runtime grpc grpc over Yamux Container namespaces Agent Kernel Hypervisor
12 Virtual Machine I/O OCI cmd/spec Container Command Container Exec Container namespaces Shim Shim Runtime grpc Agent Kernel grpc Hypervisor Hypervisor VSOCK socket
13 Fast as a Container Create Start $ kubectl apply -f nginx.yml VM Boot Kernel Agent Start Pod Prepare container Image Prepare Volumes hotplug
14 Small as a Container Minimize memory footprint Minimal rootfs Minimal kernel VM Template DAX/nvdimm De-duplicate memory across VMs KSM (with throttling)
15 Networking Kubernetes* Overlay Network veth pair MacVTAP Tap Pod Virtual Machine Container networking namespace
16 Networking Kubernetes* Overlay Network veth pair tc mirror Tap Pod Virtual Machine Container networking namespace
17 Storage 9pfs/virtio-blk 9pfs/virtio-blk Container 1 Rootfs Overlay Volume Container 2 Rootfs Overlay 9pfs/virtio-b lk Virtual Machine 9pfs/virtio-blk Volume
18 Multi-tenant Kubernetes* k8s k8s k8s Pod Pod Pod Pod container container Pod container container Pod container container Pod container container Pod VM Pod VM Pod VM Pod VM Pod VM VM VM VM VM VM VM VM IaaS CaaS
19 Demo: Stackube - K8S with Hard Multi-tenancy kubectl k8s Node k8s Master kube-apiserver Tenant (CRD) Network (CRD) Keystone (Tenant mgmt) Cinder (Persistent Volume) Neutron (L2 Isolated Network) kubelet frakti (runtime shim) CNI
20 Project Status - Code Status Current Work Shim Initial implementation merged Terminal size, code coverage Proxy Initial implementation merged Code coverage, functional testing Agent Initial implementation merged Shared PID ns, sub-reaping (agent is PID 1) QEMU Vanilla 2.9 QEMU build config Linux Kernel one 9pfs patch Minimal kernel config definition OS builder Initial implementation merged Initrd/initramfs support Agent Protocol V0.0.1 merged (pre-alpha) More declarative APIs, network APIs improved
21 Project Status - Code - Runtime No runtime code at the moment Step 1: Add both Clear Containers and runv Adapted to Kata Containers architecture (grpc, new components) Both runtimes will work seamlessly with all the Kata Containers components Users can switch runtime implementations transparently Step 2: Merge runtimes into one single implementation Step 3: Deprecate Clear Containers and runv
22 Project Status - Documentation and CI Documentation CI Missing at the moment Clear Containers and runv documentation as a backup Travis based for now: Unit testing only Will move to a nested virtualization enabled and/or bare metal public cloud Functional and integration test From unit testing up to the higher levels of the stack (Kubernetes, OpenShift)
23 What s Next? 1H 2018 Horizon 1.0 Release (parity with RunV and CC 3.0 with upgrade path) CRI integration: Frakti, CRI-O, containerd-cri OCI runtime spec support for hypervisor based containers OSV support Documented case studies
24 Governance
25 Governance The Kata Containers project is governed according to the four opens, open source open design open development open community Technical decisions will be made by technical contributors and a representative Architecture Committee. The community is committed to diversity, openness, encouraging new contributors and leaders to rise up.
26 Governance Contributors At least one github contribution for the past 12 months Maintainers Active contributor, nominated by fellow maintainers Can merge code Architecture Committee Take high level architecture and roadmap decisions 5 seats, elected by contributors
27 Governance Architecture Committee The Architecture Committee is responsible for architectural decisions, including standardization, and making final decisions if Maintainers disagree. It will be comprised of 5 members, who are appointed by the Maintainers at launch but fully elected by Contributors within the first year. The initial Architecture committee members are Samuel Otiz (Intel), Xu Wang (Hyper), Zhang Wei (Huawei) and Tim AllClair (Google).
28 Governance Working Committee The Working Committee is intended to make non-technical decisions and help influence the project strategy, including marketing and communications, product management and ecosystem support. Representatives are expected to be active contributors who are committed to the health and success of the project. Recognizing the project will grow and change quickly in the first six months, and in order to encourage diversity and participation, the Working Committee will be forming up and finalizing it s structure after the project launch. Initial appointed members include Amy Leeland (Intel) and James Kulina (Hyper). During this initial period, the participants will appoint a leader to help organize and run regular meetings, coordinate the various work streams and help define the long-term structure. The initial task will be to determine 2018 plans and appropriate work streams, working groups and funding to execute on those plans. Anyone can join! Get involved in the #working-committee channel on Slack: bit.ly/kataslack (case sensitive)
29 Get Involved
30 Contribute Code and documentation hosted on Major releases managed through Github* Projects Intel (Intel Clear Containers) & Hyper (runv) contributing initial IP Apache 2 license Slack: katacontainers.slack.com IRC: #kata-dev@freenode Mailing-list: kata-dev@lists.katacontainers.io
31 Where To Contribute? Code Unit tests for agent, shim and proxy PR reviews (agent, shim) Osbuilder support for more distros Documentation Getting Started guides Code documentation Features Requests grpc Input needed: Do we cover it all? API documentation Open issues and PRs for any feature that you d like to get from Kata Containers
32 Community You do not need to be an Individual Member of the OpenStack Foundation in order to contribute, but if you want to vote in the annual OpenStack Foundation Board of Directors election, you may join: openstack.org/join If you are contributing on behalf of an employer, they will need to sign a corporate contributor license agreement, which now covers all projects hosted by the OpenStack Foundation (same model as Apache and CNCF) Independent contributors may be submitted with a sign off header under the DCO
33 Communication KataContainers Slack bit.ly/kataslack (case sensitive) #kata-dev IRC freenode (Slack and IRC have a gateway to share messages) Mailing Lists: lists.katacontainers.io info@katacontainers.io
34 Thank you! KataContainers.io
The speed of containers, the security of VMs
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