10
votes
Accepted
Is it possible to trigger an AWS Lambda function directly from CloudWatch alarm?
As far as I know, it is not possible. The the offcial AWS Lambda documentation says it support CloudWatch Events, but no mention of CloudWatch Alarms (and CW Events != CW Alarms)
What you are ...
- 1,955
9
votes
Accepted
How do I upload my zipped lambda code into AWS Lambda?
It's kind of hidden away and not very intuitive.
Within the AWS Lamba admin: Create Function > Author from Scratch.
Within the Code entry type dropdown there is a Upload a .ZIP file option.
8
votes
Accepted
Are there any best practices and/or tools for 'nohup' monitoring?
I'm not sure it's a best practice but what I would do is using filebeat to read the log in near real time and push it to ElasticSearch.
AWS provides an ElasticSearch Service which can save you from ...
- 11.3k
7
votes
Accepted
How to storing encrypted secrets in code for a serverless.com project?
There are a couple of elements to consider here:
It is valuable to have the capability to maintain configuration with a separate release cadence from the code that is being configured. Doing so ...
- 11.6k
7
votes
Accepted
How to performance test AWS Lambda functions?
Dawny33 response is good, but I would start earlier in the development process.
Keeping an eye on your cloud environment to make sure that your functions behaves as you expect (including your "...
- 1,955
5
votes
Placing an AWS Lambda in a public subnet
No, it's not possible to place an AWS Lambda in a public subnet and thus avoid paying for NAT. Lambda functions cannot have public IPs so they cannot route to the internet without a NAT (gateway or ...
- 151
5
votes
How do I upload my zipped lambda code into AWS Lambda?
You can upload using aws-cli.
aws configure
aws lambda list-functions
aws lambda update-function-code \
--function-name MyLambdaFunction \
--zip-file fileb://index.zip
See https://...
- 200
5
votes
Accepted
LambdaA -> delay mins -> lambdaB
Use Step Functions. They allow you to coordinate lambda functions and have an inbuilt wait state
- 745
5
votes
How to performance test AWS Lambda functions?
Check out the IOpipe profiler to get full v8 profiler dumps from Lambda invocations. You can load those into Chrome Devtools to see exactly where CPU time is spent, and how memory is being used for ...
- 51
5
votes
How to performance test AWS Lambda functions?
I might not be able to answer it completely, but here are my views from my limited experience with lambda:
Speed-Performance: The duration of a single run of a lambda function will be present in the ...
- 2,826
4
votes
Accepted
DynamoDB vs RDS for a counter store?
Why not something like Redis? (can use it through ElastiCache). Hard to answer this without knowing the operational requirements of this project. Is this data strictly for logging/research, or is it ...
- 1,241
4
votes
How do I launch Lambda in my own VPC?
I have also asked the AWS Support folks for help too, as Lambda's security was crucial for us [HIPAA compliancy].
This was their response:
Lambda has two options, you can have your lambda ...
- 2,826
4
votes
Accepted
When is it not appropriate to use serverless technology such as AWS Lambda?
There is likely no general answer to this question, but some reasons to not consider Lambda (or other serverless platforms) include:
App requires a language which is not available (C++, Haskell, ...
- 201
3
votes
Accepted
How to "inject" AWS Lambda code into a CloudFormation?
You've got a couple of options:
1. Embed the source code to the CloudFormation template
I do just that in my ec2-start-stop demo. You'll see file ec2-start-stop.template.yml with these lines:
...
- 1,001
3
votes
Accepted
How can I deploy an AWS Lambda function from Jenkins?
I found the solution while trying to manually deploy the Lambda function as a jar file. These are the steps -
Create your Lambda function as a Maven project using the AWS documentation.
Create your ...
- 201
3
votes
Accepted
Undeploy or deactivate an AWS Lambda
you can change the trigger working process and rewrite and re schedule the process. Which the way you want.
it will work.
Hope it helps.
3
votes
Accepted
Amazon AWS - Amazon Connect IAM policies
There's a generator for policies in IAM (Into IAM -> Policies -> Create), choosing connect gives me the following policy:
{
"Version": "2012-10-17",
"Statement": [
{
"Sid":...
- 11.3k
3
votes
Accepted
Processing message queues quickly without wasting money on AWS Lambda
An SQS queue can now be wired directly to a Lambda function as an event source, so you don't have to start the Lambda function on a schedule.
https://aws.amazon.com/blogs/aws/aws-lambda-adds-amazon-...
- 805
3
votes
Accepted
How do I launch Lambda in my own VPC?
The API for creating a function includes a section to choose which VPC to use for running that function.
source: https://docs.aws.amazon.com/lambda/latest/dg/API_CreateFunction.html#SSS-...
- 8,963
3
votes
When is it not appropriate to use serverless technology such as AWS Lambda?
I wrote a bit about this on my LinkedIn post which was based on the article by Andrea Passwater.
In brief, do not go serverless, if
You want complete control of the infrastructure and latest system ...
- 273
3
votes
Terraform deletes AWS lambda layers instead of keeping the older versions
Terraform's job is to maintain one remote object per resource block, either by updating that same object over time or by replacing it with a new object that meets new requirements.
If you wish to ...
- 2,171
2
votes
DynamoDB vs RDS for a counter store?
For question #1)
I think this could perhaps be better answered on SoftwareEngineering SE.
Nonetheless, I'll risk an answer: for this kind of information (states) coming from that kind of ...
- 1,955
2
votes
LambdaA -> delay mins -> lambdaB
From your comment above:
The main difficult is launch the second lambda with a delay from the
first one and without doing a pooling constantly
As using SQS queues are an option for you, you can ...
- 2,826
2
votes
Placing an AWS Lambda in a public subnet
Provided the Public Subnet where you're launching your Lambda is configured with Auto-assign public IPv4 address: Yes it should work in public a subnet without NAT.
Whether or not it's a good idea is ...
- 1,001
2
votes
Accepted
How granular in purpose should FaaS functions be?
In my point of view, you can have a future gain separating the function into multiple parts because it will allow to use another combining system/upload/whatever as input to the processing part and ...
- 11.3k
2
votes
Accepted
Storing my Lambda Functions on GitHub
Your idea will work. The organization I work for maintains some open source examples how to do deploy to AWS using a pipeline. In comparison we use GitLab for the purpose. Instead of Travis we use ...
2
votes
Accepted
Strategies to work around 30 sec timeout
A variation of method 2 is infinitely scalable:
write the data to s3.
from s3 trigger lambda to break s3 file into sqs queue events of good size
from sqs queue trigger lambdas to insert
sqs can be ...
- 650
2
votes
RDS IOPS utilizing fully
First try to review current caching parameter values.
Then check list in AuroraMySQL.Reference.ParameterGroups
And try to tune/increase caching parameters like query_cache_size
Alternative solution ...
- 121
2
votes
API Gateway - How Deploy API works?
1.) Create API (create-rest-api from the cli) simply creates the API Gateway resource, but it does not create the method, stage, authorizer, etc. for your API Gateway. Deploy API (create-deployment ...
- 3,218
2
votes
Accepted
How do I create multiple versions of a lambda function in terraform
This is shown in the Hashicorp tutorial - "a new version of the lambda function. The suggestion there is to point to a different zipfile in S3.
I suppose in your case, the filename either needs to ...
- 3,570
Only top scored, non community-wiki answers of a minimum length are eligible