Anb*_*yan 3 postgresql amazon-s3 amazon-web-services amazon-vpc aws-lambda
我在python3.6中编写了lambda函数来访问在EC2实例中运行的postgresql数据库。
psycopg2.connect(user="<USER NAME>",
password="<PASSWORD>",
host="<EC2 IP Address>",
port="<PORT NUMBER>",
database="<DATABASE NAME>")
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创建了具有所需依赖项的部署包作为 zip 文件并上传到 AWS lambda。为了构建依赖项,我遵循了此参考指南。
并且还将虚拟私有云 (VPC)配置为默认云,还包括 Ec2 实例详细信息,但我无法从数据库获取连接。尝试从 lambda 连接数据库时导致超时。
拉姆达函数:
from __future__ import print_function
import json
import ast,datetime
import psycopg2
def lambda_handler(event, context):
received_event = json.dumps(event, indent=2)
load = ast.literal_eval(received_event)
try:
connection = psycopg2.connect(user="<USER NAME>",
password="<PASSWORD>",
host="<EC2 IP Address>",
# host="localhost",
port="<PORT NUMBER>",
database="<DATABASE NAME>")
cursor = connection.cursor()
postgreSQL_select_Query = "select * from test_table limit 10"
cursor.execute(postgreSQL_select_Query)
print("Selecting rows from mobile table using cursor.fetchall")
mobile_records = cursor.fetchall()
print("Print each row and it's columns values")
for row in mobile_records:
print("Id = ", row[0], )
except (Exception,) as error :
print ("Error while fetching data from PostgreSQL", error)
finally:
#closing database connection.
if(connection):
cursor.close()
connection.close()
print("PostgreSQL connection is closed")
return {
'statusCode': 200,
'body': json.dumps('Hello from Lambda!'),
'dt' : str(datetime.datetime.now())
}
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我用谷歌搜索了很多,但我找不到任何解决方法。有什么方法可以完成这个要求吗?
您的配置需要是:
Lambda-SG)DB-SG来自Lambda-SG相关数据库端口的入站连接即指.DB-SGLambda-SG
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