AWS Basic Lambda with Clojure

As a start point, I was reading this article :

https://aws.amazon.com/fr/blogs/compute/clojure/

But I can't find a way to create the first sort of Lambda.

I choose to create a simple "Event Lambda" and track there every step.

Install awscli

PIP

First you need to check, pip is installed (via pip --version). If not on MacOs, installation is pretty simple.

sudo easy_install pip

awscli

pip install --upgrade awscli --user

Add it to PATH

In your .bash_profile, add the following line.

export PATH=$PATH:$HOME/Library/Python/2.7/bin

Configure AWS

Key Id and Secret

In the console, click on your name in navbar. Choose 'security informations'.

Create an Access Key Id if needed.

Roles

You need a role with specific rights to create a function.

In IAM, choose Role in left menu, then create a new role with strategy "AWSLambdaExecute".

Region

Note your region name (ex. us-east-2)

Configure

Run aws configure and give it the previous informations.

Build your lambda

Build uberjar

Your function code will be contain in an uberjar, to build it run lein uberjar

Create the lambda

For the first deployment, you must read a 'create function' command.

aws lambda create-function \
    --function-name clj-hello  \
    --handler hello \
    --runtime java8  \
    --memory 512 \
    --timeout 10 \
    --role <YOUR_PREVIOUSLY_CREATED_ROLE> \
    --zip-file fileb://./target/clojure-aws-lambda-0.1.0-standalone.jar

Update the lambda

After the first deployment, you just want to push new code to existing lambda.

aws lambda update-function-code \
    --function-name clj-hello \
    --zip-file fileb://./target/clojure-aws-lambda-0.1.0-standalone.jar