feat: switch from cluster-autoscaler to karpenter

[mglotov]

PR Description

• Added karpenter resources into layer2-k8s
• Enabled auto-assign public IPv4 by default for public networks. It can be disabled when this issue is resolved
• Removed a cluster-autoscaler
• Removed a node-termination-handler. Karpenter manages termination of spot instances by itself
• Added a default nodepool (ASG) with spot instances (arm64) to run there coredns and karpenter
• Deleted all nodepools, including Bottlerocket. We haven't used it yet.
• Added required outputs in the layer1-aws
• Changed nodeselectors for all workloads to use well-known Karpenter labels
• Added karpenter nodepools: default and ci
• Added karpenter ec2nodeclasses: public, private

Fixes #245

Type of change

Delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation

[sonarcloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud