# Kompose

Kompose是一个将docker-compose配置转换成Kubernetes manifests的工具，官方网站为<http://kompose.io/>。

## Kompose安装

```bash
# Linux
$ curl -L https://github.com/kubernetes-incubator/kompose/releases/download/v0.5.0/kompose-linux-amd64 -o kompose

# macOS
$ curl -L https://github.com/kubernetes-incubator/kompose/releases/download/v0.5.0/kompose-darwin-amd64 -o kompose

# Windows
$ curl -L https://github.com/kubernetes-incubator/kompose/releases/download/v0.5.0/kompose-windows-amd64.exe -o kompose.exe

# 放到PATH中
$ chmod +x kompose
$ sudo mv ./kompose /usr/local/bin/kompose
```

## Kompose使用

docker-compose.yaml

```yaml
version: "2"

services:

  redis-master:
    image: gcr.io/google_containers/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
```

## kompose up

```bash
$ kompose up
We are going to create Kubernetes Deployments, Services and PersistentVolumeClaims for your Dockerized application. 
If you need different kind of resources, use the 'kompose convert' and 'kubectl create -f' commands instead. 

INFO Successfully created Service: redis
INFO Successfully created Service: web
INFO Successfully created Deployment: redis
INFO Successfully created Deployment: web

Your application has been deployed to Kubernetes. You can run 'kubectl get deployment,svc,pods,pvc' for details.
```

## kompose convert

```bash
$ kompose convert
INFO file "frontend-service.yaml" created
INFO file "redis-master-service.yaml" created
INFO file "redis-slave-service.yaml" created
INFO file "frontend-deployment.yaml" created
INFO file "redis-master-deployment.yaml" created
INFO file "redis-slave-deployment.yaml" created
```


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