komposeでdocker-compose.yamlからkubernentesのマニュフェストファイルを生成する

参考

インストール

curl -L https://github.com/kubernetes/kompose/releases/download/v1.19.0/kompose-linux-amd64 -o kompose
chmod +x kompose
sudo mv ./kompose /usr/local/bin/kompose

サンプルファイル

wget https://raw.githubusercontent.com/kubernetes/kompose/master/examples/docker-compose-v3.yaml -O docker-compose.yaml

docker-compose.yaml

version: "3"

services:

  redis-master:
    image: k8s.gcr.io/redis:e2e 
    ports:
      - "6379"

  redis-slave:
    image: gcr.io/google_samples/gb-redisslave:v1
    ports:
      - "6379"
    environment:
      - GET_HOSTS_FROM=dns

  frontend:
    image: gcr.io/google-samples/gb-frontend:v4
    ports:
      - "80:80"
    environment:
      - GET_HOSTS_FROM=dns
    labels:
      kompose.service.type: LoadBalancer

変換

kompose convert

出力

INFO Kubernetes file "frontend-service.yaml" created 
INFO Kubernetes file "redis-master-service.yaml" created 
INFO Kubernetes file "redis-slave-service.yaml" created 
INFO Kubernetes file "frontend-deployment.yaml" created 
INFO Kubernetes file "redis-master-deployment.yaml" created 
INFO Kubernetes file "redis-slave-deployment.yaml" created 

Warningなど出た場合は手動で変換してあげれば良い