paris container day 2016 : kubernetes, votre assurance-vie pour le cloud (google cloud platform)
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@ContainerDay16
KubernetesVotre assurance vie pour le Cloud
Alexis Moussine-PouchkineGoogle Cloud Platform@alexismp
Virtual Machines
Hypervisor
OS OS
OS
‹#›@kubernetesio
Container Host
OS
Containers
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But that's just one machine...
Discovery
ScalingSecurity
Monitoring Configuration
SchedulingHealth
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“Manage Applicationsnot Machines”
Kubernetes
● Open source, open API container orchestrator ● Supports multiple cloud and bare-metal● Inspired by Google’s experiences
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Launching over 2 billion containers per week
Everything at Google runs in containers
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job hello_world = {
runtime = { cell = 'ic' } // Cell (cluster) to run in
binary = '.../hello_world_webserver' // Program to run
args = { port = '%port%' } // Command line parameters
requirements = { // Resource requirements
ram = 100M
disk = 100M
cpu = 0.1
}
replicas = 5000 // Number of tasks
}
Developer View @ Google
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web browsers
BorgMaster
link shard
UI shardBorgMaster
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UI shardBorgMaster
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UI shardBorgMaster
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UI shard
Scheduler
borgcfg web browsers
scheduler
Borglet Borglet Borglet Borglet
Config file
BorgMaster
link shard
UI shard
persistent store (Paxos)
Binary
What just happened?
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Image by Connie Zhou
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@ContainerDay16
Kubernetes Principles
Cattle vs PetsLabels and selectors
Modular
Control Loops
Network-centricOpen > Closed
Simple > Complex
Legacy compatible
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Cattle
• Has a number• One is much like any other• Run as a group• If it gets ill, well ….
Pet
Cattle vs Pets
• Has a name• Is unique or rare• Needs personal attention• If it gets ill, you make it better
@ContainerDay16
kubernetes.io
Open-source system for automating deployment, scaling, and management of containerized applications
● Open Source project on GitHub● Written in Go (from scratch)● Apache 2 licensed
● Contributions from Google, Red Hat, CoreOS, Huawei, Intel, IBM, Hitachi, Deis, Fujitsu, Apprenda/Kismatic, HP, Apcera, ...
@ContainerDay16
Kubernetes features
● Automatic bin-packing
● Self-healing
● Horizontal scaling
● Service discovery and load balancing
● Automated rollouts and rollbacks
● Secret & config management
● Storage orchestration
● Batch execution
● Federated clusters (Ubernetes)
@ContainerDay16
Kubernetes Milestones & Roadmap
Milestones
● 1.0 release in June 2015● 1.1 in Nov. 2015
○ mostly perf, no API change
● 1.2 in March 2016○ auto-scaler, more APIs, more perf
● 1.3 due anytime now ○ Federation, stateful apps, rkt support,
on-prem setup, yet more perf :8000 cpu cores, 1000 nodes, 400TB cluster running w/ Cassandra
Cloud Native Foundation
● Linux Foundation● VMWare, RedHat, Joyent,
Mesosphere, Docker, IBM, CloudFoundry, CoreOS, Cisco, Google, …
● cncf.io
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@ContainerDay16
Runs everywhere
Dev/Laptop ...
Kubernetes
μservices Apps
Private CloudVM/Bare-metal/
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Google Container Engine (GKE)
● Fully-Managed Kubernetes v1.x● Manages Kubernetes master uptime● Manages updates● Cluster resize with Managed Instance Groups● Centralized logging● Cluster-level monitoring● Google Container Registry● Access to rest of Google Cloud Platform
○ APIs, Big Data products, Machine Learning, etc.
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Vibrant Kubernetes Ecosystem
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Stackoverflow questions
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Google Trends
Kubernetes
Cloud Foundry
Docker Swarm
Apache MesosAmazon ECS
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“Kubernetes is absolutely fantastic. The API is a great tool when it comes to automating a deployment pipeline. Deployments are not only more reliable, but also much faster.”
Customers
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@ContainerDay16
KubernetesVotre assurance vie pour le Cloud
Alexis Moussine-PouchkineGoogle Cloud Platform@alexismp
@ContainerDay16
Kubernetes Resources● kubernetes.io● @kubernetesio● slack.k8s.io● GKE (Container Engine) https://cloud.google.com/container-engine/
● Link-o-rama: https://github.com/ramitsurana/awesome-kubernetes ● Playground: https://katacoda.com/courses/kubernetes/playground● Kubernetes Cheatsheet : http://k8s.info/cs.html