python 定义函数来实现输出kunbernetes yaml配置文件

接着上一篇的文章kubernets的yaml文件分析详解

我用python定义了一个函数，之后在django传参数给这个函数就可以自动生成yaml文件

# coding:utf-8
import copy
import os
from yaml import load, dump
rc_path = './base-rc.yaml'

# 读取yaml文件内容并返回json
def read_yaml(path):
    f = open(path)
    json_value = load(f)
    f.close()
    # print x
    return json_value
def create_yaml(kind='ReplicationController',apiVersion='v1',namespace='default',rc_name='ssss',pod_name='bbbb',pod_version='aaaa',replicas=1,containes_counts=1,containes={'containes_name0': 'whpt','port0':8088},status='pro'):
    json_content = read_yaml(rc_path)
    json_content['kind'] = kind
    json_content['apiVersion'] = apiVersion
    json_content['metadata']['namespace'] = namespace
    json_content['metadata']['name']  = rc_name
    json_content['metadata']['labels']['app'] = pod_name
    json_content['metadata']['labels']['version']  = pod_version
    json_content['spec']['replicas'] = replicas
    i = 0 # 循环写入容器信息
    while i < containes_counts:
        # 容器名
        json_content['spec']['template']['spec']['containers'][i]['name'] = containes['containes_name'+str(i)]
        # 容器image地址
        json_content['spec']['template']['spec']['containers'][i]['image'] = status + '.zhizhebuyan.com/' + containes['containes_name'+str(i)] +':'+ pod_version
        # 容器 rsyncd地址
        json_content['spec']['template']['spec']['containers'][i]['env'][0]['value'] = status + '.zhizhebuyan.com'
        # 容器rsyncd同步目录  具体标准为 项目名(pod名)/容器名/版本号/*
        json_content['spec']['template']['spec']['containers'][i]['env'][1]['value'] = pod_name+'/'+containes['containes_name'+str(i)] +'/'+pod_version+'/*'
        # 容器对外提供端口 暂时支持每个容器对外提供一个端口
        json_content['spec']['template']['spec']['containers'][i]['ports'][0]['containerPort'] =containes['port'+str(i)]
        i += 1

    yaml_content = dump(json_content,default_flow_style=False)
    return yaml_content

if __name__ == '__main__':
    print create_yaml(kind='ReplicationController',apiVersion='v1',namespace='1231230',rc_name='Dzer0',pod_name='pod_name',pod_version='pod_version',replicas=1)

以上内容中 容器 rsyncd地址 容器rsyncd同步目录 为我容器内部自定义的参数，大家可以忽视即可