使用TCP和UNIX域套接字2020从APP引擎（灵活和标准）连接到云SQL

Question

我目前正在App Engine Flexible Environment上建立一个名为Mautic的开源营销软件。但是，使用MySQLi将App Engine连接到Cloud SQL MySQL数据库时遇到了麻烦。 Mautic是一个基于Symfony构建的PHP应用程序。我尝试使用/ cloudsql / << strong> instance_connection_name >作为主机，但是没有用。有没有人有在App Engine上部署Mautic的经验或知道可以解决此问题？

Answer 1

使用TCP和UNIX域套接字2020从APP引擎（灵活和标准）连接到云SQL

1。创建一个新项目

gcloud projects create con-ae-to-sql
gcloud config set project con-ae-to-sql
gcloud projects describe con-ae-to-sql

2。为您的项目启用计费：https://cloud.google.com/billing/docs/how-to/modify-project

3。运行以下gcloud命令以启用App Engine并创建关联的应用程序资源

gcloud app create -region europe-west2
gcloud app describe
#Remember the location of you App Engine aplication, because we will create all our resources on the same region

4。设置计算项目信息元数据：

 gcloud compute project-info describe --project con-ae-to-sql
 #Enable the Api, and you can check that default-region,google-compute-default-zone are not set. Set the metadata.
 gcloud compute project-info add-metadata --metadata google-compute-default-region=europe-west2,google-compute-default-zone=europe-west2-b

5。启用服务网络API：

gcloud services list --available
gcloud services enable servicenetworking.googleapis.com

6。创建2个云sql实例（一个具有内部IP，一个具有公共IP）-https://cloud.google.com/sql/docs/mysql/create-instance：

6.a具有外部ip的Cloud Sql实例：

#Create the sql instance in the same region as App Engine Application
gcloud --project=con-ae-to-sql beta sql instances create database-external --region=europe-west2
#Set the password for the "root@%" MySQL user:
gcloud sql users set-password root --host=% --instance database-external --password root 
#Create a user
gcloud sql users create user_name --host=% --instance=database-external  --password=user_password
#Create a database
gcloud sql databases create user_database --instance=database-external
gcloud sql databases list --instance=database-external

具有内部ip的6.b Cloud Sql实例：

i.#Create a private connection to Google so that the VM instances in the default VPC network can use private services access to reach Google services that support it.

gcloud compute addresses create google-managed-services-my-network     --global  --purpose=VPC_PEERING --prefix-length=16  --description="peering range for Google"  --network=default --project=con-ae-to-sql
gcloud services vpc-peerings connect --service=servicenetworking.googleapis.com --ranges=google-managed-services-my-network  --network=default  --project=con-ae-to-sql
#Check whether the operation was successful.
gcloud services vpc-peerings operations describe     --name=operations/pssn.dacc3510-ebc6-40bd-a07b-8c79c1f4fa9a
#Listing private connections
gcloud services vpc-peerings list --network=default --project=con-ae-to-sql
 
ii.Create the instance:

gcloud --project=con-ae-to-sql beta sql instances create database-ipinternal --network=default --no-assign-ip  --region=europe-west2
#Set the password for the "root@%" MySQL user:
gcloud sql users set-password root --host=% --instance database-ipinternal --password root
#Create a user
gcloud sql users create user_name --host=% --instance=database-ipinternal  --password=user_password
#Create a database
gcloud sql databases create user_database --instance=database-ipinternal
gcloud sql databases list --instance=database-ipinternal 


gcloud sql instances list
gcloud sql instances describe database-external
gcloud sql instances describe database-ipinternal
#Remember the instances connectionName

好的，所以我们有两个mysql实例，我们将使用Serverless Access和TCP从App Engine Standard连接到database-ipinternal，使用unix域套接字从App Engine Standard连接到外部数据库，从App Engine Flex到database-ipinternal使用TCP，从App Engine Flex到使用unix域套接字的外部数据库。

7。启用Cloud SQL Admin API

gcloud services list --available
gcloud services enable sqladmin.googleapis.com

8。目前，App Engine标准环境不支持使用TCP连接到Cloud SQL实例。除非您已配置无服务器VPC访问，否则您的代码不应尝试使用IP地址（例如127.0.0.1或172.17.0.1）访问实例。因此，让我们配置无服务器VPC访问。

8.a确保为您的项目启用了无服务器VPC访问API：

gcloud services enable vpcaccess.googleapis.com

8.b创建连接器：

gcloud compute networks vpc-access connectors create serverless-connector --network default --region europe-west2 --range 10.10.0.0/28
#Verify that your connector is in the READY state before using it
gcloud compute networks vpc-access connectors describe serverless-connector --region europe-west2

9.App Engine使用服务帐户来授权您与Cloud SQL的连接。此服务帐户必须具有正确的IAM权限才能成功连接。除非另行配置，否则默认服务帐户的格式为service-PROJECT_NUMBER@gae-api-prod.google.com.iam.gserviceaccount.com。确保您服务的服务帐户具有以下IAM角色：Cloud SQL客户端，并且要在内部ip上从App Engine Standard连接到Cloud Sql，我们还需要角色Compute Network User。

gcloud iam service-accounts list
gcloud projects add-iam-policy-binding con-ae-to-sql --member serviceAccount:con-ae-to-sql@appspot.gserviceaccount.com --role roles/cloudsql.client
gcloud projects add-iam-policy-binding con-ae-to-sql --member serviceAccount:con-ae-to-sql@appspot.gserviceaccount.com --role roles/compute.networkUser

现在我已经配置好了

1。使用Tcp和Unix Domanin套接字从App Engine Standard连接到Cloud Sql

cd app-engine-standard/
ls
#app.yaml  main.py requirements.txt

cat requirements.txt
Flask==1.1.1
sqlalchemy
pymysql
uwsgi==2.0.18

cat app.yaml
runtime: python37
entrypoint: uwsgi --http-socket :8080 --wsgi-file main.py --callable app --master --processes 1 --threads 2
vpc_access_connector:
    name: "projects/con-ae-to-sql/locations/europe-west2/connectors/serverless-connector" 



cat main.py

from flask import Flask
import pymysql
from sqlalchemy import create_engine

# If `entrypoint` is not defined in app.yaml, App Engine will look for an app
# called `app` in `main.py`.
app = Flask(__name__)

@app.route('/')
def hello():
    engine_tcp = create_engine('mysql+pymysql://user_name:user_password@internal-ip-of-database-ipinternal:3306')
    existing_databases_tcp = engine_tcp.execute("SHOW DATABASES;")
    con_tcp = "Connecting from APP Engine Standard to Cloud SQL using TCP: databases => " + str([d[0] for d in existing_databases_tcp]).strip('[]') + "\n"
    engine_unix_socket = create_engine('mysql+pymysql://user_name:user_password@/user_database?unix_socket=/cloudsql/con-ae-to-sql:europe-west2:database-external')
    existing_databases_unix_socket = engine_unix_socket.execute("SHOW DATABASES;")
    con_unix_socket = "Connecting from APP Engine Standard to Cloud SQL using Unix Sockets: tables in sys database:  => " + str([d[0] for d in existing_databases_unix_socket]).strip('[]') + "\n"
    return con_tcp + con_unix_socket



gcloud app deploy -q
gcloud app browse
#Go to https://con-ae-to-sql.appspot.com
#Connecting from APP Engine Standard to Cloud SQL using TCP: databases => 'information_schema', 'user_database', 'mysql', 'performance_schema', 'sys' Connecting from APP Engine Standard to Cloud SQL using Unix Sockets: tables in sys database: => 'information_schema', 'user_database', 'mysql', 'performance_schema', 'sys'

成功！

2。使用Tcp和Unix domanin套接字从App Engine Flex连接到Cloud Sql

cd app-engine-flex/
ls
#app.yaml  main.py requirements.txt

cat requirements.txt
Flask==1.1.1
gunicorn==19.9.0
sqlalchemy
pymysql

cat app.yaml
runtime: python
env: flex
entrypoint: gunicorn -b :$PORT main:app
runtime_config:
  python_version: 3
#Using TCP and unix sockets domain
beta_settings:
 cloud_sql_instances: con-ae-to-sql:europe-west2:database-ipinternal=tcp:3306,con-ae-to-sql:europe-west2:database-external
manual_scaling:
  instances: 1
resources:
  cpu: 1
  memory_gb: 0.5
  disk_size_gb: 10


cat main.py

from flask import Flask
import pymysql
from sqlalchemy import create_engine

app = Flask(__name__)

@app.route('/')
def hello():
    engine_tcp = create_engine('mysql+pymysql://user_name:user_password@internal-ip-of-database-ipinternal:3306')
    existing_databases_tcp = engine_tcp.execute("SHOW DATABASES;")
    con_tcp = "Connecting from APP Engine Flex to Cloud SQL using TCP: databases => " + str([d[0] for d in existing_databases_tcp]).strip('[]') + "\n"

    engine_unix_socket = create_engine('mysql+pymysql://user_name:user_password@/user_database?unix_socket=/cloudsql/con-ae-to-sql:europe-west2:database-external')
    existing_databases_unix_socket = engine_unix_socket.execute("SHOW DATABASES;")
    con_unix_socket = "Connecting from APP Engine Flex to Cloud SQL using Unix Sockets: tables in sys database:  => " + str([d[0] for d in existing_databases_unix_socket]).strip('[]') + "\n"
    return con_tcp + con_unix_socket


gcloud app deploy -q
gcloud app browse
#Go to https://con-ae-to-sql.appspot.com
#Connecting from APP Engine Flex to Cloud SQL using TCP: databases => 'information_schema', 'marian', 'mysql', 'performance_schema', 'sys' Connecting from APP Engine Flex to Cloud SQL using Unix Sockets: tables in sys database: => 'information_schema', 'marian', 'mysql', 'performance_schema', 'sys'

成功！

Answer 2

AppEngine Flex提供了两种不同的连接方式：通过Unix套接字或TCP端口。我没有看到关于从Mautic连接到MySQL的任何特殊信息，因此请确保您的连接设置和app.yaml之间保持一致。

通过Unix套接字连接

您的app.yaml应该包含以下内容：

beta_settings:
    cloud_sql_instances: "<CONNECTION_NAME>"

您的连接字符串将如下所示：mysql:dbname=DATABASE;unix_socket=/cloudsql/CONNECTION_NAME

通过TCP端口连接

您的app.yaml应该如下所示：

beta_settings:
    cloud_sql_instances: "<CONNECTION_NAME>=tcp:3306"

您的连接字符串将如下所示："mysql:host=127.0.0.1;port=3306;dbname=DATABASE;"

您可以在GAE-Flexible/CloudSQL documentation中找到更多信息和示例。

如何从App Engine连接到Cloud SQL MySQL数据库？

2 个答案:

使用TCP和UNIX域套接字2020从APP引擎（灵活和标准）连接到云SQL

通过Unix套接字连接

通过TCP端口连接