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Coclyco

Goal

cozy-coclyco is designed to create Cozy instances, manage nginx vhost and Let's encrypt certificate issuance.

A single prime256v1 private key /etc/ssl/private/cozy.pem is used to issue certificates. For each created instance with domain <fqdn>, it create

  • a /etc/ssl/private/<fqdn>.crt Let's encrypt certificate will be created
  • a /etc/nginx/sites-available/<fqdn> will be deployed and activated

The issued certificate must contain all subdomains needed for apps. By default,

  • <fqdn>
  • onboarding.<fqdn>
  • settings.<fqdn>
  • drive.<fqdn>
  • photos.<fqdn>
  • collect.<fqdn>

are added to the certificate.

Requirements

Before creating an instance and to be able to issue certificates with Let's Encrypt, you need to be able to pass the ACME challenge, and so you need to :

  • configure your DNS to point all needed subdomains <app>.<fqdn> to your web server
  • serve /etc/ssl/private/acme-challenge as http://*.<fqdn>/.well-known/acme-challenge/

The best way to configure your web server is to configure your default vhost like below

/etc/nginx/sites-available/default
server {
	listen 80 default_server;
	listen [::]:80 default_server;

	root /var/www/html;
	server_name _;

	location /.well-known/acme-challenge/ {
		alias /etc/ssl/private/acme-challenge/;
	}

	location / {
		return 301 https://$host$request_uri;
	}
}

Usage

To create an instance

cozy-coclyco create <fqdn> <email>

If you install an application on your Cozy, you need to regenerate the certificate to add the corresponding subdomain on it

cozy-coclyco regenerate <fqdn>

To renew your certificates before expiration (Let's Encrypt certificates have 90 days life)

cozy-coclyco renew

By default, the renewal is triggered each month by /etc/cron.monthly/cozy-coclyco

You can regenerate the nginx vhost with

cozy-coclyco vhost <fqdn>

To backup a Cozy

cozy-coclyco backup <fqdn>*

To restore a Cozy from a backup

cozy-coclyco restore <fqdn> <archive.tar.xz>