[英]Can't connect to MySQL Docker hosted on GCP Kubernetes Engine
我想通过 Python 连接到托管在 GCP Kubernetes 上的 MySQL docker 以编辑数据库。 我遇到错误:
2003, "Can't connect to MySQL server on '35.200.250.69' ([Errno 61] Connection refused)"
我也尝试过通过 MySQL 连接,但也无法正常工作
我的 Dockerfile:
FROM mysql:latest
ENV MYSQL_ROOT_PASSWORD password
# Derived from official mysql image (our base image)
FROM mysql
# Add a database
ENV MYSQL_DATABASE test-db
ENV MYSQL_USER=dbuser
ENV MYSQL_PASSWORD=dbpassword
# Add the content of the sql-scripts/ directory to your image
# All scripts in docker-entrypoint-initdb.d/ are automatically
# executed during container startup
COPY ./sql-scripts/ /docker-entrypoint-initdb.d/
EXPOSE 50050
CMD echo "This is a test." | wc -
CMD ["mysqld"]
sql-scripts文件夹中包含 2 个文件:
CREATE USER 'newuser'@'%' IDENTIFIED BY 'newpassword';
GRANT ALL PRIVILEGES ON * to 'newuser'@'%';
和
CREATE DATABASE test_db;
我使用以下命令启动容器:
kubectl run test-mysql --image=gcr.io/data-sandbox-196216/test-mysql:latest --port=50050 --env="MYSQL_ROOT_PASSWORD=root_password"
在 GCP 上,容器似乎运行正常:
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
test-mysql LoadBalancer 10.19.249.10 35.200.250.69 50050:30626/TCP 2m
以及连接到 MySQL 的 python 文件:
import sqlalchemy as db
# specify database configurations
config = {
'host': '35.200.250.69',
'port': 50050,
'user': 'root',
'password': 'root_password',
'database': 'test_db'
}
db_user = config.get('user')
db_pwd = config.get('password')
db_host = config.get('host')
db_port = config.get('port')
db_name = config.get('database')
# specify connection string
connection_str = f'mysql+pymysql://{db_user}:{db_pwd}@{db_host}:{db_port}/{db_name}'
# connect to database
engine = db.create_engine(connection_str)
connection = engine.connect()
我希望能够用 Python 编写这个 MySQL 数据库,并在 PowerBI 上阅读它。
谢谢你的帮助!
您已公开端口50050,而 MySQL 服务器默认侦听端口3306
选项 I.更改my.cfg
默认端口并设置port=50050
选项二。 公开默认 MySQL 端口
Dockerfile:
FROM mysql:latest
ENV MYSQL_ROOT_PASSWORD password
# Derived from official mysql image (our base image)
FROM mysql
# Add a database
ENV MYSQL_DATABASE test-db
ENV MYSQL_USER=dbuser
ENV MYSQL_PASSWORD=dbpassword
# Add the content of the sql-scripts/ directory to your image
# All scripts in docker-entrypoint-initdb.d/ are automatically
# executed during container startup
COPY ./sql-scripts/ /docker-entrypoint-initdb.d/
EXPOSE 3306
CMD echo "This is a test." | wc -
CMD ["mysqld"]
启动容器:
kubectl run test-mysql --image=gcr.io/data-sandbox-196216/test-mysql:latest --port=3306 --env="MYSQL_ROOT_PASSWORD=root_password"
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