Complete revamp of the module for 2023

[e-minguez]

Complete revamp of the module for 2023

Closes #14 #42

Fixes:

• Use templatefile instead the deprecated template_file
• Use metros instead the deprecated facilities
• Use the equinix terraform module instead the deprecated equinix/metal
• Bird configuration with multiple peers
• sysctl changes persisted

Improvements:

• Multiple clusters on different or same metro with different topologies allowed
• No need for private ssh key, everything is done at cloud-init level
• K3s control plane HA via BGP
• Customization of different parameters (K3s version, MetalLB version, etc.)
• Demo app easily deployable
• Following the equinix/template standards
• Improved documentation
• More outputs to be easily consumable
• Customizable number of public IPv4 pool
• MetalLB deployment updated to use CRDs instead configmaps

[e-minguez]

@ctreatma thanks for your inputs. I've sorted everything out. PTAL /cc @dcallao

[displague]

@e-minguez I created a PR against your branch with some of the changes being suggested (or that I would have suggested):

https://github.com/e-minguez/terraform-metal-k3s/pull/1

I ran:

cd examples/demo-cluster
eval $(metal env -o terraform)
export TF_VAR_metal_auth_token
export TF_VAR_metal_project_id
terraform init -upgrade
terraform apply

The Hello World example worked out of the box.

[dcallao]

@e-minguez Thanks for submitting these changes. I have tested this last week and will test again today one more time. Will update @displague for final approval then merge. 👍

[e-minguez]

@e-minguez Thanks for submitting these changes. I have tested this last week and will test again today one more time. Will update @displague for final approval then merge. 👍

Do you want me to update my PR with @displague suggestions? or maybe we can merge this one and @displague can create a follow up PR on this repo? Open to suggestions 😄

[dcallao]

@e-minguez Thanks for submitting these changes. I have tested this last week and will test again today one more time. Will update @displague for final approval then merge. 👍

Do you want me to update my PR with @displague suggestions? or maybe we can merge this one and @displague can create a follow up PR on this repo? Open to suggestions 😄

Yes. Please do and thank you again. 👍

[displague]

@e-minguez I've used some GitHub shenanigans to merge into your branch. Merging this once I get tests passing again (I've offended the linters).

[github-actions[bot]]

This PR is included in version 0.1.0 :tada: