Docker Container Orchestration Devopscon 2015

1 / 84 © 2015 <[email protected]>, @PRossbach, DevOpsCon Berlin 2015
[email protected] bee42 solutions gmbh be(e) not perfect...

From monolith to microservices

Marc Andressen - 2010

Adrian Cockcroft - 2014

Make software faster available Produce higher quality Make your services globally available Improve your service with customer feedback Reduce your cost

Work together (DevOps) Automate your Delivery Pipeline Use Orchestration Tools Use a DataCenter Operating System Migrate Services to the Cloud Integrate more monitoring into your apps

<=>

Build, Ship and Run Any App, Anywhere

deliver prepackage software

Docker works locally and in the cloud with the same binary with the same functionality with the same version with the same filesystem layout with the same dependencies but with different Linux kernels! This dream is now reality... => Infrastructur First

Use Linux at bare metal, instead a virtual machine provider

but there exists a lot of competitors CoreOS Rocket | pure LXC | Ubuntu joyent | SmartOS | ...

Docker Engine 1.6 Docker Machine 0.2 Docker Swarm 0.2 Docker Compose (fig.sh) 1.2 && 1.3 RC1 Docker Network Docker Plugins with Powerstrip Mesos and Marathon

Management Docker Host Native Windows Docker Client available Fast Image Loading ( Registry 2.0) Daemon add IPv6 support Resource Limit Management Access Container stats

Create and manage machines Use libmachine framework for easier driver integration Docker swarm support Regenerate Certs after IP-address is changed Use current Docker 1.6 engine release Docker engine upgrade support First presentation at second docker hackday end of Oct- 2014 Product offering at DockerConf Amsterdam Dec-2014 Second release v0.2 Apr-2015 is avaliable https://github.com/docker/machine

https://github.com/docker/machine/releases $ URL=https://github.com/docker/machine/releases/download $ curl -L ${URL}/v0.2.0/docker-machine_darwin-amd64 \ >~/bin/docker-machine_darwin-amd64 $ cd ~/bin $ ln -s docker-machine_darwin-amd64 docker-machine $ chmod +x docker-machine_darwin-amd64 $ export PATH=~/bin:$PATH

$ git clone https://github.com/docker/machine.git $ cd machine $ boot2docker start $ eval $(boot2docker shellinit) $ script/build -osarch="darwin/amd64" $ cp docker-machine_darwin_amd64 ~/bin/ $ cd ~/bin $ ln -s docker-machine_darwin-amd64 docker-machine $ chmod +x docker-machine_darwin-amd64 Crosscompile with golang, inside a build container!

$ cd ~/bin $ docker-machine ls INFO[0000] Creating CA: /Users/peter/.docker/machine/certs/ca.pem INFO[0001] Creating client certificate: /Users/peter/.docker/machine/certs/c NAME ACTIVE DRIVER STATE URL $ ls -a .docker/machine/certs ca-key.pem ca.pem cert.pem key.pem server-key.pem server.pem Build your own docker-machine CA!

$ time docker-machine create -d virtualbox dev INFO[0000] Downloading boot2docker.iso to /Users/peter/.docker/images/boot2d INFO[0019] Creating SSH key... INFO[0020] Creating VirtualBox VM... INFO[0027] Starting VirtualBox VM... INFO[0027] Waiting for VM to start... INFO[0061] "dev" has been created and is now the active machine INFO[0061] To point your Docker client at it, run this in your shell: eval real 1m1.937s user 0m6.904s sys 0m6.231s

$ time docker-machine create -d virtualbox dev2 INFO[0000] Creating SSH key... INFO[0000] Creating VirtualBox VM... INFO[0008] Starting VirtualBox VM... INFO[0008] Waiting for VM to start... INFO[0042] "dev2" has been created and is now the active machine. INFO[0042] To point your Docker client at it, run this in your shell: eval real 0m42.850s user 0m6.031s sys 0m5.960s Use Image-Cache

$ docker-machine ls NAME ACTIVE DRIVER STATE URL dev virtualbox Running tcp://192.168.99.100:2376 dev2 * virtualbox Running tcp://192.168.99.101:2376 $ docker-machine config dev2 --tlsverify --tlscacert="/Users/peter/.docker/machine/machines/dev2/ca.pem" --tlscert="/Users/peter/.docker/m $ docker $(docker-machine config dev) ps Start a Container $ docker $(docker-machine config dev2) run \ --rm busybox /bin/sh -c "echo hello machine $(hostname)" Unable to find image 'busybox:latest' locally busybox:latest: The image you are pulling has been verified 511136ea3c5a: Pull complete df7546f9f060: Pull complete ea13149945cb: Pull complete 4986bf8c1536: Pull complete Status: Downloaded newer image for busybox:latest hello machine 117ade53e1d6 $ docker $(docker-machine config dev2) ps -a REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE busybox latest 4986bf8c1536 5 weeks ago 2.433 MB

$ docker-machine ssh dev ## . ## ## ## == ## ## ## ## ## === /"""""""""""""""""\___/ === ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ / ===- ~~~ \______ o __/ \ \ __/ \____\_______/ _ _ ____ _ _ | |__ ___ ___ | |_|___ \ __| | ___ ___| | _____ _ __ | '_ \ / _ \ / _ \| __| __) / _` |/ _ \ / __| |/ / _ \ '__| | |_) | (_) | (_) | |_ / __/ (_| | (_) | (__| < __/ | |_.__/ \___/ \___/ \__|_____\__,_|\___/ \___|_|\_\___|_| Boot2Docker version 1.6.0, build master : a270c71 - Thu Apr 16 19:50:36 UTC 2015 Docker version 1.6.0, build 47496 Really easy peasy...

Works now as proposed... Generating a machine in a minute... A lot of pull requests exists to support more providers CenturyLink, CloudStack Parallels, QCloud, Gandi, Linode...:-) Swarm support Manage your machine infrastructure Simple CLI Missing a machine description file

https://github.com/docker/swarm Scheduling docker containers at multiple machines Maintain docker machine cluster Support multiple discovery services Support filtering Open API and first batteries included First presentation at second docker hackday end of October 2014 Product offering at DockerConf Amsterdam 2014 Second Release Apr 2015 Current Release 0.2.0

$ docker pull swarm $ docker run --rm swarm create <SWARM_TOKEN> $ docker run -d -p 3376:2376 swarm manage \ <TLS CONFIG> token://<SWARM_TOKEN> $ docker run -d swarm join \ --addr=<node_ip:2376> token://<cluster_id>

docker run docker create docker inspect docker kill docker logs docker start docker info docker ps

docker hub swarm discovery simple file or cmdline nodes agent based consul etcd zookeeper http://discovery-stage.hub.docker.com https://github.com/docker/swarm/tree/master/discovery

Spread Bin Packing Random Rescheduling container is planned! http://en.wikipedia.org/wiki/Bin_packing_problem

Memory based docker run -m 1g ... CPU CORE based docker run -c 1 ... Port based docker run -p 80:80 ...

$ docker run -c 1 -p 9082:8080 -d tomcat:8.0 35d50a29ed0fde780c0826ef16ff24d2582609f877ee092c780d9aeb6f27fc75 $ docker ps CONTAINER ID IMAGE COMMAND CREATED \ STATUS PORTS NAMES 35d50a29ed0f tomcat:8.0 "catalina.sh run" 16 minutes ago\ Up Less than a second 192.168.33.89:9082->8080/tcp \ dockerhost1/insane_brattain 9c79ad1c4958 nginx:latest "nginx -g 'daemon of 5 hours ago\ Up 5 hours 443/tcp, 192.168.33.90:8080->80/tcp \ dockerhost2/multiple-machine_nginx_1421067200 $ docker run -c 1 -p 9083:8080 -d tomcat:8.0 f5bc6a274e82426df98eaca5e88fb01f43e03455dfebdb9ee4a3b00a7eab202e $ docker ps CONTAINER ID IMAGE COMMAND CREATED\ STATUS PORTS NAMES f5bc6a274e82 tomcat:8.0 "catalina.sh run" 16 minutes ago\ Up Less than a second 192.168.33.90:9083->8080/tcp \ dockerhost2/stupefied_albattani 35d50a29ed0f tomcat:8.0 "catalina.sh run" 17 minutes ago\ Up Less than a second 192.168.33.89:9082->8080/tcp \ dockerhost1/insane_brattain 9c79ad1c4958 nginx:latest "nginx -g 'daemon of 5 hours ago\ Up 5 hours 443/tcp, 192.168.33.90:8080->80/tcp \ dockerhost2/multiple-machine_nginx_1421067200 ...

lsb_release -a DOCKER_OPTS="--label region=de-berlin \ --label storage=ssd-vdi \ --label role=loadbalancer" docker -d ${DOCKER_OPTS} --label stage=prod Usage of the label with constraints docker run -e "constraint:operatingsystem==fedora" ... docker run -e "constraint:storagedriver==aufs" ... docker run -e "constraint:region==de-berlin" ... docker run -e "constraint:node!=dev2" ... Provision to loaded image or named container docker run -d -p 80:80 --name front nginx docker run -e "affinity:container==front" logger docker run -e "affinity:image==redis" redis

Shared volumes: --volumes-from=dependency Links: --link=dependency:alias Shared network stack: --net=container:dependency

DOT=XYZ docker pull swarm SWARM_TOKEN=$(docker run --rm swarm create) echo $SWARM_TOKEN >token.txt docker-machine create \ --driver digitalocean \ --digitalocean-region fra1 \ --digitalocean-size 512mb \ --digitalocean-access-token $DOT \ --digitalocean-private-networking \ --swarm \ --swarm-master \ --swarm-discovery token://$SWARM_TOKEN \ jax-swarm docker-machine create \ --driver digitalocean \ --digitalocean-region fra1 \ --digitalocean-size 2gb \ --digitalocean-access-token $DOT \ --digitalocean-private-networking \ --swarm \ --swarm-discovery token://$SWARM_TOKEN \ jax-swarm-001

Container Scheduler Docker Proxy Supports TLS Up and Running Nice docker-machine swarm support exists Like It!

Integration with Swarm - multi host support Applications spanning multiple teams/hubs An even better tool for development environments Extend configs

command description build Build or rebuild services help Get help on a command kill Kill containers logs View output from containers port Print the public port for a port binding ps List containers pull Pulls service images rm Remove stopped containers run Run a one-off command scale Set number of containers for a service start Start services stop Stop services restart Restart services up Create and start containers

common.yml tomcat: image: infrabricks/tomcat:8 ports: - "8080" volumes: - tomcat-users.xml:/opt/tomcat/conf/tomcat-users.xml environment: constraint: zone==dev constraint: disk==ssd SERVICE_8080_NAME: status-http SERVICE_REGION: bee42.1 SERVICE_8080_CHECK_HTTP: /status/ping.jsp SERVICE_8080_CHECK_INTERVAL: 30s

status: image: infrabricks/status tomcatblue: extends: file: common.yml service: tomcat volumes_from: - status environment: SERVICE_TAGS: tomcat,blue

status: image: infrabricks/status tomcatgreen: extends: file: common.yml service: tomcat volumes_from: - status environment: SERVICE_TAGS: tomcat,green

shipyardrethinkdbdata: image: shipyard/rethinkdb entrypoint: /bin/bash command: -l rethinkdb: image: shipyard/rethinkdb expose: - "8080" - "28015" - "29015" volumes_from: - shipyardrethinkdbdata shipyard: image: shipyard/shipyard ports: - "5080:8080" links: - rethinkdb:rethinkdb

$ eval $(docker-machine env dev2) $ docker-compose up -d $ open http://$(docker-machine ip dev2):5080 $ docker run --rm -it shipyard/shipyard-cli Default Credentials: admin/shipyard More about the project http://shipyard-project.com/

crane maestro-ng rancher-os shipyard dockerui decking CoreOS fleet Kubernetes Marathon vagrant saltstack ansible puppet chef

https://clusterhq.com/blog/docker-extensions

You can write your own proprietary clients. Add tracking Add your own auth control Add functionality like weave or flocker Split up the big docker daemon project container management network storage and image management ...

$ cat > powerstrip-demo/adapters.yml <<EOF version: 1 endpoints: "POST /*/containers/create": pre: [slowreq] adapters: slowreq: http://slowreq/slowreq-adapter EOF

$ docker run -d --name powerstrip-slowreq \ --expose 80 \ clusterhq/powerstrip-slowreq:v0.0.1 $ docker run -d --name powerstrip \ -v /var/run/docker.sock:/var/run/docker.sock \ -v $PWD/powerstrip-demo/adapters.yml:/etc/powerstrip/adapters.yml \ --link powerstrip-slowreq:slowreq \ -p 2375:2375 \ clusterhq/powerstrip:v0.0.1 https://github.com/ClusterHQ/powerstrip-slowreq.git

Use Local unix socket RPC's to extend go daemon functionality See my powerstrip TLS experiment https://github.com/docker/swarm/pull/347 https://github.com/chanwit/swarm/tree/plugin-system https://github.com/infrabricks/powerstrip-demo

ipv6 support at docker 1.5 socketplane weave de-wire pipework flannel openVSwitch https://speakerdeck.com/aschmidt75/docker-networking https://speakerdeck.com/aschmidt75/docker-network- playground http://www.infrabricks.de

Distributed key value store Service Registry Multi-Datacenter Support ACL HTTP and DNS Discovery support Simple: curl'able user facing API (HTTP+JSON) Secure: optional SSL client cert authentication Reliable: properly distributed using Raft Written in go Use the Find more info at website RAFT Protocol Consul

Registrator automatically registers/deregisters services for Docker containers published ports published metadata from the container environment Consul (Tags, Healthcheck) Blog explain registrator Github registrator Consul ETCD

Twitter AirBnB Apple (Siri) Google Cloud Plattform Amazon AWS Digital Ocean Sloppy.io

Tasks-Scheduler Docker Support Deployment Groups Auto Rescheduler Schedule Groups of Apps Swarm Support planned!

View the slides as a docker container $ docker run -d -p 8000:80 rossbachp/docker-orchestration:devopscon-2015 $ open http://<docker host>:8000/docker-orchestration Slides at speakerdeck https://speakerdeck.com/rossbachp Available at 2.06.2015* [email protected] @PRossbach Infrabricks Blog bee42

DevOpsCon 1-3.6 2015 - Berlin DockerConf 20-23.6 2015 - San Fransisco DevOpsDays at 2-6.11 WJax 2015 - Munich Find my training offerings at http://www.bee42.com/training/ http://devops-training.de/2015

17.11.2014 Docker Sonderheft

Q1 2016 www.dpunkt.de/docker

Work with the beekeeper!

Service benefit Lab: use my IT-brick knowledge to be faster informed Consulting: use my expertise to start smarter Training: let me help you to get a docker-brick expert Products: use my knowledge of the docker ecosystem [email protected]

bee42 solutions gmbh starts the implementation of an Infrabricks line! Peter Rossbach DevOps, Docker-enthusiast and infra-coder with passion Systemarchitect Java Developer Apache Tomcat Committer Member of the Apache Software Foundation Founder of the bee42 solutions gmbh Author starts writing the german docker microservice handbook! We're hiring!

DockerConf Amsterdam 2014 videos https://blog.docker.com/2014/12/dockercon-eu-keynote-on-orchestration/ http://de.slideshare.net/d0cent/orchestrating-docker-containersatscale https://github.com/docker/machine https://github.com/docker/swarm https://github.com/docker/docker/issues/9459 http://de.slideshare.net/Docker/docker-swarm-by-victor-vieux http://blog.docker.com/2014/12/announcing-docker-machine-swarm-and- compose-for-orchestrating-distributed-apps/ https://community.runabove.com/kb/en/instances/docker-in-5-minutes-on- runabove-with-docker-machine.html https://github.com/docker/machine/pull/73 http://blogs.vmware.com/cloudnative/docker-machine-deployment-vm-fusion- vsphere-vcloud-air/ https://github.com/cloudnativeapps/machine/releases/tag/vmw_tech_preview http://technolo-g.com/intro-to-docker-swarm-pt1-overview/ https://github.com/technolo-g/docker-swarm-demo http://technolo-g.com/intro-to-docker-swarm-pt2-config-options-requirements/

Docker Container Orchestration Devopscon 2015

Docker Container Orchestration Devopscon 2015

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