Compose on Kubernetes サンプル

November 26, 2019 4560

docker-compose.ymlを作る

version: '3.3'

services:

  db:
    build: db
    image: dockersamples/k8s-wordsmith-db

  words:
    build: words
    image: dockersamples/k8s-wordsmith-api
    deploy:
      replicas: 5

  web:
    build: web
    image: dockersamples/k8s-wordsmith-web
    ports:
     - "33000:80"

docker stack deploy --orchestrator=kubernetes -c docker-compose.yml composek8s

実行結果

Ignoring unsupported options: build







service "db": build is ignored



service "words": build is ignored



service "web": build is ignored



Waiting for the stack to be stable and running...



db: Ready  [pod status: 1/1 ready, 0/1 pending, 0/1 failed]



db: Ready  [pod status: 1/1 ready, 0/1 pending, 0/1 failed]



web: Ready  [pod status: 1/1 ready, 0/1 pending, 0/1 failed]



words: Ready  [pod status: 1/5 ready, 4/5 pending, 0/5 failed]







Stack composek8s is stable and running

ブラウザからアクセスできるようになりますhttp://localhost:33000

実行状況を調べてみます

# docker stack ps --orchestrator=kubernetes composek8s

ID                  NAME                                IMAGE                             NODE                DESIRED STATE       CURRENT STATE           ERROR               PORTS

598abba7-0f6        composek8s_db-74444fddf7-s8nxf      dockersamples/k8s-wordsmith-db    docker-desktop      Running             Running 4 minutes ago

598f1b70-0f6        composek8s_web-6d968c7bf6-mxjxt     dockersamples/k8s-wordsmith-web   docker-desktop      Running             Running 4 minutes ago                       *:0->80/tcp

59931520-0f6        composek8s_words-58bcc78668-2fpkt   dockersamples/k8s-wordsmith-api   docker-desktop      Running             Running 4 minutes ago

5994ca2c-0f6        composek8s_words-58bcc78668-b8spk   dockersamples/k8s-wordsmith-api   docker-desktop      Running             Running 4 minutes ago

59984bde-0f6        composek8s_words-58bcc78668-q4675   dockersamples/k8s-wordsmith-api   docker-desktop      Running             Running 4 minutes ago

5994b923-0f6        composek8s_words-58bcc78668-v5b7s   dockersamples/k8s-wordsmith-api   docker-desktop      Running             Running 4 minutes ago




59983152-0f6        composek8s_words-58bcc78668-z92cj   dockersamples/k8s-wordsmith-api   docker-desktop      Running             Running 4 minutes ago







# docker stack services --orchestrator=kubernetes composek8s



ID                  NAME                MODE                REPLICAS            IMAGE                             PORTS



598fcb50-0f6        composek8s_db       replicated          1/1                 dockersamples/k8s-wordsmith-db



5992bb76-0f6        composek8s_web      replicated          1/1                 dockersamples/k8s-wordsmith-web   *:33000->80/tcp







599e9c71-0f6        composek8s_words    replicated          5/5                 dockersamples/k8s-wordsmith-api

別途 kubectl get all など kubectl コマンドも使える模様。

 コンテナを停止します
$ docker stack rm --orchestrator=kubernetes composek8s
Removing stack: composek8s