Proxmox acme

What is Proxmox ?

Proxmox Virtual Environment is a complete open-source platform for enterprise virtualization. With the built-in web interface you can easily manage VMs and containers, software-defined storage and networking, high-availability clustering, and multiple out-of-the-box tools using a single solution.

How to enable Proxmox ACME ?

In this guide we will see how to enable proxmox ACME with vault. This guide assume vault PKI is already setup using the ansible role from this repository. This guide also assume that your proxmox server trust the vault PKI.

• email_account with your email account (not used)
• vault_acme_url like https://vault.unicornafk.fr:8200/v1/pki/acme/directory
• proxmox_domains it's a list of domains separated by ; like server.unicornafk.fr;server1.unicornafk.fr. As we are using DNS round robin (recommended way to get cluster metrics) on proxmox exporter we must have an entry matching that record server.unicornafk.fr

Execute the following steps :

1. SSH to a proxmox node
2. Run pvenode acme account register default <email_acount>
3. Choose option 2 as we are using a custom endpoint
4. Type your <vault_acme_url> and don't use external account binding.
5. Configure ACME hostname pvenode config set --acme domains="<proxmox_domains>"
6. Order a certificate pvenode acme cert order

Repeat step 5 to 6 on each server as step 1 to 4 need to be run only the first time on one node.