python 如何把docker-compose.yaml导入到数据库相关条目里

实现将docker-compose.yaml导入相关的数据库条目的功能，利用python脚本，yaml、sqlalchemy、json等模块实现。

docker-compose.yaml

_version: '1'services: webapp: build: context: ./dir dockerfile: Dockerfile-alternate args: buildno: 1

python deme文件。

#!/usr/bin/env python# -*- coding: utf-8 -*- import yamlimport tracebackfrom sqlalchemy import create_enginefrom sqlalchemy.orm import sessionmakerfrom sqlalchemy import Column, DateTime, Index, Integer, String, Text, text, BigIntegerfrom sqlalchemy.ext.declarative import declarative_baseimport datetimeimport jsonimport base64 '''作用：将docker-compose.yaml导入到数据库的docker-compose表中。docker-compose表创建语句： CREATE TABLE `docker_compose` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT, `services` text NOT NULL COMMENT ’@desc services’, `creator` int(11) DEFAULT ’0’, `modifier` int(11) DEFAULT ’0’, `gmt_created` datetime NOT NULL, `gmt_modified` datetime NOT NULL, `_version` varchar(64) DEFAULT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=1092 DEFAULT CHARSET=utf8 ''' def now(): return datetime.datetime.now() BASE = declarative_base() class DockerCompose(BASE): __tablename__ = ’docker_compose’ id = Column(BigInteger, primary_key=True) services = Column(Text, nullable=False) _version = Column(String(64)) creator = Column(Integer, server_default=text('’0’')) modifier = Column(Integer, server_default=text('’0’')) gmt_created = Column(DateTime, nullable=False) gmt_modified = Column(DateTime, nullable=False) def get_session(db_connection): ''' db connection api :param db_connection: :return: ''' DB_URL = ’mysql+pymysql://%s’ % (db_connection,) engine = create_engine(DB_URL, pool_size=25, pool_recycle=3600, echo=False) Session = sessionmaker(bind=engine) return Session() def load_yaml(filename): try: with open(filename, ’r’) as fh: return yaml.safe_load(fh) except (IOError, yaml.YAMLError) as e: raise Exception(u'{}'.format(traceback.format_exc())) def import_engine_compose(instance_config, dbConnection): services = instance_config[’services’] _version = instance_config.get(’_version’) session = get_session(dbConnection) docker_compose = DockerCompose( gmt_created=datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'), gmt_modified=datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'), creator=999, modifier=999, _version=_version, services=json.dumps(services) ) session.add(docker_compose) session.commit() def main(dbConnection, filepath='docker_compose.yaml'): docker_compose_config = load_yaml(filepath) import_engine_compose(docker_compose_config, dbConnection) if __name__ == ’__main__’: dbConnection = 'xxx' DB_CONNECTION = base64.b64decode(dbConnection) main(DB_CONNECTION)

补充：docker-compose.yaml的编写

当我们打包好了镜像的时候，一个一个区整理的时候，也是很浪费功夫，尤其是我们修改了一些代码的时候

version: '2'services: mysql: image: mysql:mysql hostname: mysql ports: - '3306:3306' volumes: - '/data/mysql:/var/lib/mysql' restart: always backend: image: backend:0.5 command: 'python3 main.py' hostname: backend volumes: - '/data/files:/app/files' network_mode: 'host' depends_on: - mysql restart: always frontend: image: frontend:0.5 hostname: frontend volumes: - '/Users/gaven/Desktop/anji/frontend/web/nginx.conf:/etc/nginx/nginx.conf' - '/Users/gaven/Desktop/anji/frontend/web/default.conf:/etc/nginx/conf.d/default.conf' ports: - '80:80' network_mode: 'host' restart: always

以上为个人经验，希望能给大家一个参考，也希望大家多多支持好吧啦网。如有错误或未考虑完全的地方，望不吝赐教。