我部署了一个使用 pg8000 的 lambda (python3.7)
import pg8000
..
def get_connection():
"""
Method to establish the connection.
"""
try:
print ("Connecting to database")
# Create a low-level client with the service name for rds
client = boto3.client("rds")
# Read the environment variables to get DB EndPoint
DBEndPoint = os.environ.get("DBEndPoint")
# Read the environment variables to get the Database name
DatabaseName = os.environ.get("DatabaseName")
# Read the environment variables to get the Database username which has access to database.
DBUserName = os.environ.get("DBUserName")
# Generates an auth token used to connect to a db with IAM credentials.
password = client.generate_db_auth_token(
DBHostname=DBEndPoint, Port=5432, DBUsername=DBUserName
)
# Establishes the connection with the server using the token generated as password
conn = pg8000.connect(
host=DBEndPoint,
user=DBUserName,
database=DatabaseName,
password=password,
ssl={"sslmode": "verify-full", "sslrootcert": "rds-ca-2015-root.pem"},
)
print("Succesful connection!")
return conn
except Exception as e:
print ("While connecting failed due to :{0}".format(str(e)))
return None
...
我有一个 requirements.txt,其中包含:
pg8000==1.13.2
boto3==1.9.67
我正在执行 sam build、sam package 和 sam deploy。sam build 不处理 pg8000 等依赖项的下载吗?
确切的命令:
sam build
sam package --template-file ./template.yml --output-template-file output.yml --s3-bucket xxx-bucket
sam deploy --template-file ./output.yml --stack-name demo --capabilities CAPABILITY_IAM
触发 lambda 后出错:
[ERROR] Runtime.ImportModuleError: Unable to import module 'index': No module named 'pg8000'