python 定义函数来实现输出kunbernetes svc配置文件

紧接着上一篇python 定义函数来实现输出kunbernetes yaml配置文件文章

这篇文章来贴上 python自定义函数来输出service.yaml方法

def create_svc_yaml(post_on,rc_name,containes,pod_name,namespace,pod_version):
    nodePort = int(Port_all.objects.latest('id').wport) + 1  # 此处为从数据库获取最新的端口并+1
    json_content = read_yaml(svc_path)
    json_content['metadata']['labels']['app'] = pod_name
    json_content['metadata']['namespace'] = namespace
    json_content['metadata']['name'] = pod_name
    json_content['spec']['selector'] = pod_name
    i = 0
    while i < int(len(post_on)):
        for m in post_on:
            print m
            json_content['spec']['ports'][i]['name'] = rc_name[0:4] + '-tcp' # 由于有字数限制，所有取前四个字符+‘-tcp’来定义post_name
            json_content['spec']['ports'][i]['nodePort'] = nodePort + m
            json_content['spec']['ports'][i]['targetPort'] = int(containes['port'+str(m)])
            json_content['spec']['ports'][i]['port'] = nodePort + m
        i += 1
    yaml_content = dump(json_content,default_flow_style=False)
    # 将yaml输出到文件
    save_svc_yaml_path = project_yaml_path + pod_name +'/' + pod_version + '/'  #定义 保存service yaml的路径
    isExists = os.path.exists(save_svc_yaml_path) # 判断路径是否存在
    print save_svc_yaml_path
    if not isExists: 
        try:
            os.makedirs(save_svc_yaml_path) # 创建路径
            write_yaml = open(save_svc_yaml_path + '//' + str(pod_name) +'-svc.yaml','w')
            write_yaml.write(yaml_content)
            write_yaml.close()
            return os.path.isfile(save_svc_yaml_path + '//' + str(pod_name) +'-svc.yaml')
        except Exception as e:
            return e
    else:
        if os.path.isfile(save_svc_yaml_path + '//' + str(pod_name) +'-svc.yaml'):
            return 'File exists, Please contact Administrator QQ:zhizhebuyan!!!'
        else:
            write_yaml = open(save_svc_yaml_path + '//' + str(pod_name) +'-svc.yaml','w')
            write_yaml.write(yaml_content)
            write_yaml.close()
            return os.path.isfile(save_svc_yaml_path + '//' + str(pod_name) +'-svc.yaml')

参数介绍：

post_on —- 是一个list 里面存储的是pod中容器的位置

rc_name—-项目别名

containers —-是一个json 例子：{‘containes_name0’: ‘whpt’,’port0’:8088}

pod_name —-表示唯一项目名不可更改

namespace —-命名空间

pod_version—-版本号，随着项目的滚动更新而变化。

这边文章就到这了，感谢你浪费时间观看此篇文章