Multi host networking with docker
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Multi host networking with docker / OpenConrainer KR
![Docker network UI
Usage:dockernetwork[OPTIONS]COMMAND[OPTIONS][arg...]
Commands:
create Createanetwork
rm Removeanetwork
ls Listallnetworks
info Displayinformationofanetwork
Run'dockernetworkCOMMAND--help'formoreinformationonacommand.
--help=false Printusage
네트웍을 만들거나,삭제하거나,조회할수 있다
dockernetworkcreate-d<plugin_name>foo
$dockernetworkcreatefoo
aae601f43744bc1f57c515a16c8c7c4989a2cad577978a32e6910b799a6bccf6
$dockernetworkcreate-doverlaybar
d9989793e2f5fe400a58ef77f706d03f668219688ee989ea68ea78b990fa2406](https://image.slidesharecdn.com/multi-hostnetworkingwithdocker-150905131355-lva1-app6892/85/Multi-host-networking-with-docker-4-320.jpg)
![Docker service UI
Usage:dockerservice[OPTIONS]COMMAND[OPTIONS][arg...]
Commands:
publish Publishaservice
unpublishRemoveaservice
attach Attachabackend(container)totheservice
detach Detachthebackendfromtheservice
ls Listsallservices
info Displayinformationaboutaservice
Run'dockerserviceCOMMAND--help'formoreinformationonacommand.
`docker run` 할때 --publish-service옵션을 사용하거나,
dockerrun-itd--publish-servicedb.foopostgres
`docker service publish` 와 `docker service attach` 으로 container와 service(endpoint)
을 연결 할수 있다
$dockerservicepublishmy-service.foo
ec56fd74717d00f968c26675c9a77707e49ae64b8e54832ebf78888eb116e428
$dockerserviceattacha0ebc12d3e48my-service.foo](https://image.slidesharecdn.com/multi-hostnetworkingwithdocker-150905131355-lva1-app6892/85/Multi-host-networking-with-docker-5-320.jpg)
![Remote network driver plugin
JSON/RPC/HTTP
Plugin discovery
-/etc/docker/plugin/[name].spec|.sock|.json
API
-/Plugin.Activate
-/NetworkDriver.CreateNetwork
-/NetworkDriver.DeleteNetwork
-/NetworkDriver.CreateEndpoint
-/NetworkDriver.EndpointOperInfo
-/NetworkDriver.DeleteEndpoint
-/NetworkDriver.Join
-/NetworkDriver.Leave](https://image.slidesharecdn.com/multi-hostnetworkingwithdocker-150905131355-lva1-app6892/85/Multi-host-networking-with-docker-12-320.jpg)
Multi host networking with docker
- 1. Multi-Host networking with Docker OpenContainer Korea 2015 5 September 2015 anarcher
- 2. Multi-Host networking with docker
- 3. Demo 아직은 실험적인 빌드(Experimental build) 에서만 사용가능 docker engine 1.7 / dockercon 2015 에서 발표됨. docker engine 1.9에서는?
- 4. Docker network UI Usage:dockernetwork[OPTIONS]COMMAND[OPTIONS][arg...] Commands: create Createanetwork rm Removeanetwork ls Listallnetworks info Displayinformationofanetwork Run'dockernetworkCOMMAND--help'formoreinformationonacommand. --help=false Printusage 네트웍을 만들거나,삭제하거나,조회할수 있다 dockernetworkcreate-d<plugin_name>foo $dockernetworkcreatefoo aae601f43744bc1f57c515a16c8c7c4989a2cad577978a32e6910b799a6bccf6 $dockernetworkcreate-doverlaybar d9989793e2f5fe400a58ef77f706d03f668219688ee989ea68ea78b990fa2406
- 5. Docker service UI Usage:dockerservice[OPTIONS]COMMAND[OPTIONS][arg...] Commands: publish Publishaservice unpublishRemoveaservice attach Attachabackend(container)totheservice detach Detachthebackendfromtheservice ls Listsallservices info Displayinformationaboutaservice Run'dockerserviceCOMMAND--help'formoreinformationonacommand. `docker run` 할때 --publish-service옵션을 사용하거나, dockerrun-itd--publish-servicedb.foopostgres `docker service publish` 와 `docker service attach` 으로 container와 service(endpoint) 을 연결 할수 있다 $dockerservicepublishmy-service.foo ec56fd74717d00f968c26675c9a77707e49ae64b8e54832ebf78888eb116e428 $dockerserviceattacha0ebc12d3e48my-service.foo
- 6. Docker daemon & libkv docker-machine create docker-machine--debugcreate -dvirtualbox --virtualbox-boot2docker-url=https://github.com/anarcher/boot2docker-experimental/releases/downloa --engine-opt="kv-store=consul:$(docker-machineipinfra):8500" --engine-label="com.docker.network.driver.overlay.bind_interface=eth1" --engine-label="com.docker.network.driver.overlay.neighbor_ip=$(docker-machineipdemo0)"demo1 docker daemon dockerdaemon --kv-store=consul:consul-host:8500 --label=com.docker.network.driver.overlay.bind_interface=eth1 --label=com.docker.network.driver.overlay.neighbor_ip=10.254.101.21 cluster membership 을 위해서 serf(serfdom.io(http://serfdom.io))을 사용 docker network,docker service의 metadata을 저장하기 위해서 docker/libkv(--kv- store)를 사용
- 7. Overlay network driver VXLAN(Virtual eXtensible Local Area Network) 사용 -Linux(3.7)지원 -L3Networks상에서 (논리적인)L2Network을 구성 -IP/UDP를 이용해서 encapsulation하는 구조 다른 네트웍 노드(docker engine)을 찾기 위해 serf(serfdom.io(http://serfdom.io))을 사용 Linux netns(network namespace) 사용 -namespace마다 독자적인 network환경을 가질수 있다 -/var/run/docker/netns/
- 8. docker/libnetwork Docker engine에서 network 부분을 분리 (docker engine도 libnetwork의 사용자 중..) CNM(Container Network Model)에 대한 구현 Docker engine에서 사용하는 host,bridge에 대한 구현도 이제는 docker/libnetwork에서 Driver based networking (builtin driver도 있고,remote driver도 사용할수 있다)
- 10. CNM : Container Network Model Sandbox : 컨테이너를 위한 격리된 네트웍 환경 -IP,MAC,Route,DNS;Linuxnetns,FreeBSDJail Endpoint : 특정 네트워크에서 통신하는 네트웍 인터페이스. -컨테이너의 생성과 소멸과는 독립적으로 분리되어 Endpoint만의 생성과 소멸을 가진다 Network : 서로 통신할수 있는 여러 Endpoints의 그룹 -하나의 endpoint는 하나의 network에만 속할수 있다.
- 12. Remote network driver plugin JSON/RPC/HTTP Plugin discovery -/etc/docker/plugin/[name].spec|.sock|.json API -/Plugin.Activate -/NetworkDriver.CreateNetwork -/NetworkDriver.DeleteNetwork -/NetworkDriver.CreateEndpoint -/NetworkDriver.EndpointOperInfo -/NetworkDriver.DeleteEndpoint -/NetworkDriver.Join -/NetworkDriver.Leave