Test and review using Digital Rebar to deploy Kubernetes clusters on Packet.net

[taylor]

Goal: Deploy a Kubernetes cluster to bare metal using a PXE boot install method on Packet.net

This should cover starting with no Packet nodes and all the way to a running Kubernetes cluster which supports deploying apps via helm charts.

A user should be able to start with nothing more than a Packet.net account.

The steps would look something like:

1. User has a Packet API key
2. User goes to a public github repo
3. User clones repo
4. User adds Packet API key to environment or some config file
5. User runs script or copy and pastes commands to get a k8s cluster

Could start with SSH to a brand new packet instance, launched from Packet dashboard, and run everything else from command line

[taylor]

Videos and docs referenced:

• RackN Rebar KRIB training/demo videos => https://www.youtube.com/playlist?list=PLXPBeIrpXjfhKqmTvxI5-0CmgUh82dztr
• Digital Rebar KRIB Complete Run Through => https://www.youtube.com/watch?v=rzBq3BsYQTM
• Using the RackN Terraform provider => https://www.youtube.com/watch?v=5trB3_IFFX8
• http://provision.readthedocs.io/en/tip/doc/content-packages/krib.html#component-krib
• https://provision.readthedocs.io/en/tip/doc/integrations/krib.html

[taylor]

Tried to use Terraform plan that builds the whole KRIB cluster from the command line following the video https://www.youtube.com/watch?v=5trB3_IFFX8 and documentation for building the terraform provider https://github.com/rackn/terraform-provider-drp#building-the-provider, but ran into validation errors. Opened a ticket on the provider repo

rackn/terraform-provider-drp#56

[taylor]

As there were no all command line walk-throughs/demos for only using the rebar command line we refocused on using the Rebar web ui for now.

[taylor]

TIP: Reset profile or create a new one to clear k8s API server IP

Reusing a existing profile fails because the Kubernetes API server IP is already populated in the profile

Creating a brand new profile or reseting the profile in rebar fixes the issue.

[taylor]

While using the web-ui we ran into what looks like a certificate related issue when the KRIB workflow is running. Opened a upstream ticket, digitalrebar/provision-content#133, with the instructions to reproduce.

[dankohn]

Cc @zehicle

[denverwilliams]

After to running the new steps below digitalrebar/provision-content#133 (comment)

• Go to https://portal.rackn.io/#/e/147.75.196.129:8092/bulk

• Select all machines to be used in new k8s cluster

• Use profile drop down to choose the profile "myprofile"

• Click the + symbol to add the profile to the machines

• Use Workflows drop down to choose the krib-reset-cluster workflow

• Click the Change Workflow button (play / skip button) - This will reset the certs

We were successfully able to deploy a K8s cluster on RackN/Packet with both the GUI and Terraform

[zehicle]

@denverwilliams since this was successful, can we close the ticket?

[lixuna]

What's left:

@denverwilliams to provide additional documentation to this ticket, then close.