Blogs

AWS recently launched support for Graviton2 in AWS Lambda Functions but if your organization is using IaC with Serverless framework, you will notice that it is not natively offering the option to use ARM64 yet. At Cloudwiry we addressed this with a quick but elegant and scalable solution: we created a tiny plugin that can be easily plugged into any software building pipeline with non-disruptive effects.

The plugin is publicly available at serverless-aws-lambda-arch repository and can be used like this for a new or even existing codebase.

1. Go to your project serverless.yml and reference the plugin
2. Add/mark the desired functions that you want to use with graviton2
3. Install the plugin
4. Have fun testing/deploying

Details are explained in the next sections.

Referencing the plugin

Add the plugin to the serverless.yaml file by adding the last entry in the plugins section.

“`serverless.yml
plugins:
- serverless-python-requirements
- serverless-aws-lambda-arch

“`

This section may contain other plugins depending on the serverless features your code is already using, just add a mention to serverless-aws-lambda-arch at the end.

Marking the desired functions that will use Graviton2

In serverless.yml, go to the functions section and add the architectures to each function entry that you want to use with Graviton2.

“`serverless.yml

functions:
myHappyFunction:
handler: my_happy.handler
architectures: arm64

myHappyFunction2:
handler: my_happy2.handler
architectures: arm64

“`

Again your codebase may have multiple entries under your functions, add architectures: arm64 to the entries that you want to migrate. In our case, we are applying this to all our functions: myHappyFunction and myHappyFunction2.

Installing the plugin

Go to your command line console and use this command to install the Cloudwiry provided plugin for serverless framework.

For more strategies on optimizing your cloud, schedule a call with our cloud experts or drop us an email at hello@cloudwiry.com.