Where did those 800 pods come from?
A typical unlikely combination of factors, involving Argo CD ApplicationSets and mysterious AWS EKS Fargate nodes, resulting in some head-scratching, troubleshooting and interesting take-aways.…
Hackathon: Could we run NU.nl on LeafCloud sustainable hosting?
Hackathon time! The theme being ‘climate’: What would it take to run NU.nl on LeafCloud, a more environmental-friendly cloud than AWS? Let’s find out.…
The mysterious case of the missing ECR image
Investigating why very occasionally we got bitten by our ECR lifecycle policy…
EKS and the quest for IP addresses: Secondary CIDR ranges and private NAT gateways
How secondary CIDR ranges and private NAT gateways provide an alternative to custom networking, when needing to feed EKS routable IP addresses in an enterprise multi-VPC set up.…
Terraform: Good plan = good apply
Examples on how to reduce impact of applying Terraform by careful planning, using target and modifying of state.…
EFS Excess - Cleaning up terabytes of data
Disovering terabytes of excessive data, on our bill first, and cleaning it up.…
Generating https urls in Django using CloudFront
Configure CloudFront to set the Cloudfront-Forwarded-Proto in order to allow a Django application to know the client’s request protocol.…
Secure Route 53 healthchecks using HAProxy
It’s possible to configure HAProxy to have separate health check and service endpoints, allowing to set up different firewall rules for each.…