I am creating a python script to create read replica. Here is the code i wrote.
import boto3
def lambda_handler(event, context):
client= boto3.client('rds')
client.create_db_instance_read_replica(
DBInstanceIdentifier='database-replica',
SourceDBInstanceIdentifier='database-1',
)
I am getting this error:
errorMessage": "Connect timeout on endpoint URL: \"https://rds.ap-southeast-2.amazonaws.com/\""
I have configured all the IAM roles that i think i needed. Can any one have experience with similar problem.
To access private Amazon VPC resources, such as a Relational Database Service (Amazon RDS) DB instance or Amazon Elastic Compute Cloud (Amazon EC2) instance, associate your Lambda function in an Amazon VPC with one or more private subnets.
To grant internet access to your function, its associated VPC must have a NAT gateway (or NAT instance) in a public subnet.
And ensure your RDS Security Group has a self-reference. [means attaching its own Security Group to itself]
Ref
Related
I’m trying to create a cluster in databricks in a customer managed vpc (AWS) environment. Created both front end and back end endpoints. The cluster got terminated with message ‘NPIP tunnel setup failure.’ Looking at the logs, it throws wait for Ngork tunnel failure.
You need to make sure that you aren't blocking outgoing traffic to the Databricks control plane. The section "Firewall appliance infrastructure" documentation describes that you need to enable traffic to following objects (this list may change over the time):
Databricks web application
Databricks secure cluster connectivity (SCC) relay (ngrok)
AWS S3 global URL
AWS S3 regional URL
AWS STS global URL
AWS STS regional URL
AWS Kinesis regional URL
Table metastore RDS regional URL
Actual global & regional host names could be found in the following table in the same documentation
I'm new with golang.
I've been looking documentation of lambda-golang-AWS and still had this timeout in when invoking the function.
I've been configuring:
Elasticache cluster (1 primary node),
VPC (one same VPC for redis and lambda),
Security groups,
Subnets,
Inbound and outbound,
role
I have this primary Redis endpoint xxxxxx
I just need an example.
So, my questions are:
Can we connect Redis in Linux without an EC2 instance? Possibly try it with RDM.
How do we put AWS redis's endpoint in the main function? (do we only need the endpoint? or else)
Is it possible to connect to Redis Elasticache with only endpoint (without AUTH)?
Thanks a lot!
Can we connect Redis in Linux without an EC2 instance?
Yes, of course, why would an EC2 instance be an additional requirement? You just need to include a Redis client library in your Lambda function's deployment artifact, and configure the Elasticache cluster to allow inbound traffic from the security group assigned to the Lambda function.
How do we put AWS redis's endpoint in the main function? (do we only
need the endpoint? or else)
I would configure the endpoint as one of the Lambda function's environment variables.
Is it possible to connect to Redis Elasticache with only endpoint
(without AUTH)?
If you don't enable AUTH on Elasticache, then you can connect without AUTH. AUTH is an optional configuration setting.
I've created an Aurora MySQL serverless db cluster in AWS and I want to connect to it from my computer using mySQL Workbench. I've entered the endpoint as well as master user and password, however when I try to connect , it hangs for about one minute and then it says that cannot connect (no further info is given).
Also trying to ping the endpoint, it resolves the name but don't get any answer.
I've read all the documentation from AWS but I really cannot find how to connect. In the vpc security group I've enabled all inbound and outbound traffic on all ports and protocols. The AWS doc says to enable public access in DB settings but I cannot find such an option.
You can't give an Amazon Aurora Serverless V1 DB cluster a public IP address. You can access an Aurora Serverless V1 DB cluster only from within a virtual private cloud (VPC), based on the Amazon VPC service. For Aurora Serverless V2 you can make a cluster public. Make sure you have the proper ingress rules set up and enable public access in database configuration. For more information, see Using Amazon Aurora Serverless.
https://aws.amazon.com/premiumsupport/knowledge-center/aurora-private-public-endpoints/ .
i want to send mail using node mailer in NodeJS if my lambda function is developed in default VPC because I have to access RDS too from the lambda function.
I am unable to send success mail for data successfully inserted in RDS if I deployed my lambda function in default VPC WHAT changes I need to do so I can send.
IF I choose NO vpc then I am unable to set data to database.
From https://docs.aws.amazon.com/lambda/latest/dg/configuration-vpc.html,
When you connect a function to a VPC in your account, it does not have access to the internet unless your VPC provides access.
I take this to mean that if you wish to access both RDS and the internet from lambda from within your VPC, you need a NAT gatway (or to spin up your own instance). In other words, lambda does not support internet access with a public IP through an Internet Gateway, which is the mechanism of internet access within your vpc.
If you don't mind the cost, about 4.5 cents an hour plus data transfer last I checked, the simplest solution is probably:
add another subnet to your VPC.
Add a NAT Gateway to your VPC.
Add a route table to the subnet that routes through the NAT Gateway
put your lambda in that subnet
This essentially creates a connection to the internet in that VPC without your lambda holding a Public IP address.
I am trying to connect to my Redshift database (located in N. Virginia region) from Lambda function (located in Ireland region). But on trying to establish a connection, I am getting timeout error stating:
"errorMessage": "2019-10-20T13:34:04.938Z 5ca40421-08a8-4c97-b730-7babde3278af Task timed out after 60.05 seconds"
I have closely followed the solution provided to the AWS Lambda times out connecting to RedShift but the main issue is that the solution provided is valid for services located in same VPC (and hence, same region).
On researching further, I came across Inter-region VPC Peering and followed the guidelines provided in AWS Docs. But after configuring VPC Peering also, I am unable to connect to Redshift
Here are some of the details that I think can be useful for understanding the situation:
Redshift cluster is publicly accessible, running port 8192 and has a VPC configured (say VPC1)
Lambda function is located in another VPC (say VPC2)
There is a VPC Peering connection between VPC1 and VPC2
CIDR IPv4 blocks of both VPCs are different and have been added to each other's Route tables (VPC1 has 172.31.0.0/16 range and VPC2 has 10.0.0.0/16 range)
IAM Execution role for Lambda function has Full Access of Redshift service
In VPC1, I have a security group (SG1) which has an inbound rule of type: Redshift, protocol: TCP, port: 5439 and source: 10.0.0.0/16
In VPC2, I am using default security group which has outbound rule of 0.0.0.0/0
In Lambda, I am providing private IP of Redshift (172.31.x.x) as hostname and 5439 as port (not 8192!)
Lambda function is in NodeJS 8.10 and I am using node-redshift package for connecting to Redshift
After all this, I have tried accessing Redshift with both public IP as well as through its DNS name (with port 8192)
Kindly help me out in establishing connection between these services.