CONNEXION DEPUIS APP ENGINE (FLEX ET STANDARD) À CLOUD SQL À L'AIDE DE DOMAINS TCP ET UNIX 2020
1.Créer un nouveau projet
gcloud projects create con-ae-to-sql
gcloud config set project con-ae-to-sql
gcloud projects describe con-ae-to-sql
2.Activez la facturation sur votre projet :https://cloud.google .com/billing/docs/how-to/modify-project
3.Exécutez la commande gcloud suivante pour activer App Engine et créer les ressources d'application associées
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.Définissez les métadonnées d'informations sur le projet de calcul :
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.Activer l'API de mise en réseau des services :
gcloud services list --available
gcloud services enable servicenetworking.googleapis.com
6.Créez 2 instances cloud sql (une avec une adresse IP interne et une avec une adresse IP publique) - https://cloud.google.com/sql/docs/mysql/create-instance :
6.une instance Cloud Sql avec une adresse ip externe :
#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 "[email protected]%" 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
6.b Instance Cloud Sql avec adresse ip interne :
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 "[email protected]%" 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
OK, nous avons donc deux instances mysql, nous allons nous connecter d'App Engine Standard à database-ipinternal en utilisant Serverless Access et TCP, d'App Engine Standard à database-external en utilisant un socket de domaine unix, d'App Engine Flex à database-ipinternal en utilisant TCP, et d'App Engine Flex à la base de données externe à l'aide du socket de domaine Unix.
7. Activez l'API d'administration Cloud SQL
gcloud services list --available
gcloud services enable sqladmin.googleapis.com
8.À l'heure actuelle, les environnements standard App Engine ne prennent pas en charge la connexion à l'instance Cloud SQL à l'aide de TCP. Votre code ne doit pas essayer d'accéder à l'instance à l'aide d'une adresse IP (telle que 127.0.0.1 ou 172.17.0.1) sauf si vous avez configuré l'accès au VPC sans serveur. Configurons donc l'accès au VPC sans serveur.
8.a Assurez-vous que l'API d'accès au VPC sans serveur est activée pour votre projet :
gcloud services enable vpcaccess.googleapis.com
8.b Créez un connecteur :
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 utilise un compte de service pour autoriser vos connexions à Cloud SQL. Ce compte de service doit disposer des autorisations IAM appropriées pour se connecter avec succès. Unless otherwise configured, the default service account is in the format [email protected] nt.com. Assurez-vous que le compte de service de votre service dispose des rôles IAM suivants :Client Cloud SQL. Pour vous connecter d'App Engine Standard à Cloud Sql sur une adresse IP interne, nous avons également besoin du rôle Utilisateur du réseau de calcul.
gcloud iam service-accounts list
gcloud projects add-iam-policy-binding con-ae-to-sql --member serviceAccount:[email protected] --role roles/cloudsql.client
gcloud projects add-iam-policy-binding con-ae-to-sql --member serviceAccount:[email protected] --role roles/compute.networkUser
Maintenant que j'ai configuré la configuration
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:[email protected]: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:[email protected]/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'
SUCCÈS !
2.Se connecter d'App Engine Flex à Cloud SQL à l'aide de Tcp et d'un socket de domaine Unix
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:[email protected]: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:[email protected]/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'
SUCCÈS !
