Docker 1.11 Overview - Mike Coleman

http://www.meetup.com/Docker-Portland-OR/events/229872960/

Docker recently announced the release of Docker 1.11 which is built upon runC and the Open Container Initiative.

Mike Coleman is a Senior Technical Marketing Engineer at Docker. He tweets as @mikegcoleman.

Transcript

1. Docker 1.11 Overview Mike Coleman (mike.coleman@docker.com) @mikegcoleman
2. What’s in 1.11 • Swarm container restarts on node failure • containerd and runC integration • Not 1.11 specific, but Docker for Mac • DNS round robin load balancing • Compose improvements
3. Swarm Container Rescheduling • Allows for container restarts on node failure • Set via environment variable or label $ docker run -d -e reschedule:on-node-failure redis $ docker run -d -l 'com.docker.swarm.reschedule-policy=["on-node-failure"]' redis • Check status via logs
4. containerd / runC Integration - Docker Engine now ships as 4 binaries - docker - docker-containerd - docker-containerd-shim - docker-runc - Separation of concerns: container runtime neatly isolated from the engine - Facilitate use of other container runtimes...
5. containerd / runC Integration
6. Docker for Mac/Windows Goal: Provide native Docker experience on Mac and Windows • No more VirtualBox • Easy file syncing • VPN / Proxy support • Single integrated Docker experience that is easy to install
7. DNS “round robin” Load Balancer $ docker network create TEST $ docker run -d --name web1 --net TEST --net-alias web nginx … $ docker run -d --name web2 --net TEST --net-alias web nginx … $ docker run -it --net TEST alpine sh / # ping web PING ping (172.19.0.2): 56 data bytes 64 bytes from 172.19.0.2: seq=0 ttl=64 time=0.128 ms 64 bytes from 172.19.0.2: seq=1 ttl=64 time=0.108 ms ^C / # ping web PING ping (172.19.0.3): 56 data bytes 64 bytes from 172.19.0.3: seq=0 ttl=64 time=0.117 ms 64 bytes from 172.19.0.3: seq=1 ttl=64 time=0.109 ms ^C / # nslookup web Name: web Address 1: 172.19.0.2 web1.TEST Address 2: 172.19.0.3 web2.TEST
8. • Read environment variables from .env file ◦ Default config ◦ Secrets ◦ DOCKER_HOST, etc • docker-compose up is parallel where possible ◦ Dependency order is still respected • docker-compose logs is aware of new containers ◦ Also supports all docker logs flags (-f, -t, etc) Compose Improvements