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AWS EKS: reduce the number of reserved IPs
4 min read
If you are trying to run a EKS cluster on a small subnet you might run out of IPs sooner that you might think. Every time it has to attach or detach IPs an API call needs to be made, so to avoid getting API calls throttled it pre-reserves some
16/05/2022
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Install AWS cloud provider on a k3s cluster
2 min read
One of the drawbacks of installing k3s on a EC2 instance versus using EKS is that we loose the AWS integration, so we cannot use AWS load balancers by default. Thanks to the AWS cloud provider we can overcome this limitation
10/05/2022
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Deploy a lambda function using terraform
4 min read
To be able to deploy a lambda function there are several pieces that need to be deployed:
- IAM roles: It might need to access to the AWS API, so we need to create an IAM role to control it's privileges
- Triggering: We might want the function to get triggered with some event (that's what we are going to do on this post) or a load balancer
- Code: What we want to execute
- Lambda function itself
05/05/2022
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Configure an AWS Load Balancer to target an Autoscaling Group using terraform
3 min read
It's quite convenient to be able to configure a AWS Load Balancer to target an Auto Scaling Group so we don't have to handle how instances are getting in and out of this load balancer. This can be done easily using terraform as follows
04/05/2022
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How to use aws s3 sync command
2 min read
Similarly on how we use the rsync command to copy content across the filesystem and even across servers, we can use aws s3 sync to not only sync files between the computer we are running it and an S3 bucket but also between S3 buckets
03/05/2022
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