Hello Docker ! Ronak Kogta

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A Soft Theory of Everything Applications Data Runtime Middleware OS Virtualization Servers Networking Storage Applications Data Runtime Middleware OS Virtualization Servers Networking Storage

 Adoption of Massive commodity servers vs Workstation  Breaking Software into pieces  Monolithic => Loose Coupled => Micro-services  Advances in practical distributed computing  Raft/Paxos Consensus protocols  CAP aware robust and resilient systems  Resource Isolation [will discuss in detail]  Virtualization  Containerization A Soft Theory of Everything - Key Factors

Resource Isolation

Resource Isolation

 Highly Resource Efficient  Low latencies  Still in development, many pieces are not in place.  No such features available as of yet.  Security is in nascent stages. Containerization  Resource Heavy  Slow startup and shutdown time  More Stable and robust tools available.  Live Migration and efficient snapshotting.  Tighter Security Guarantees Virtualization Resource Isolation

Lightweight process virtualization  Solaris Zones  BSD Jails  AIX WPARs (workload partitions)  LXC containers Containers

 Namespaces (Resource Isolation)  mnt  ipc  pid  net  uts  user clone(), unshare(), setns()  Cgroups (Resource Management)  Generic process grouping framework  freezer  cpuset  blkio  cpuacct  devices Containers Contd.

Containers Contd.

 Standard Operations  Start/Stop, Upload/Download, Tag/Snapshotted  Content Agnostic  Infrastructure Agnostic  Designed for Automation  Industrial Grade Delivery Source: Docker's Container Manifesto Docker: A self sufficient runtime for container

It is a neat bundle of three major components  Linux namespaces (isolated view of system)  Cgroups (limit and isolate the resource usage)  Union Filesystem (AUFS, overlayfs) Docker Concepts  Dockerfile and Docker images  Docker runtime  Docker volumes What is Docker ?

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 Docker images and Dockerfile  Docker libcontainer runtime  Docker volumes  Data Containers  Docker network  Exposing ports  Vbridge  Docker Tools Docker Concepts

Docker Universe Is Expanding.

Thanks!

 Docker [Machine,Swarm,Compose]  Mesosphere & CoreOS Fleet  Docker libnetwork  CoreOS etcd & Hashicorp’s consul  Docker Hub and Crate.io  ClusterHQ’s Powerstrip  Configuration  Orchestration  Networking  Movement  Service Discovery  Image Management  Extensions  Security Docker is still expanding...

 http://www.techrepublic.com/article/add-ons-fill-the- enterprise-gaps-in-dockers-ecosystem/ References