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description
This guide will show you how to expose a self-hosted Omni with Nginx and secure it with TLS

How to expose Omni with Nginx (HTTPS)

Omni deployment configuration

You need to deploy an omni instance the how to deploy omni on prem guide, with the following flags set:

--name=$OMNI_NAME
--private-key-source=file:///omni.asc
--advertised-api-url=https://$OMNI_DOMAIN/
--bind-addr=127.0.0.1:8080
--machine-api-bind-addr=127.0.0.1:8090
--siderolink-api-advertised-url=https://api.$OMNI_DOMAIN:443
--k8s-proxy-bind-addr=127.0.0.1:8100
--advertised-kubernetes-proxy-url=https://kube.$OMNI_DOMAIN/
--account-id=$OMNI_UUID
--siderolink-use-grpc-tunnel=true
## Also add the authentication flags according to your setup

Certificates

You can use acme or certbot to generate certificates for your domain. In the following nginx config, the are stored in /var/lib/acme/omni/ and /var/lib/acme/omni_api/ and /var/lib/acme/omni_kube/. Make sure to change the paths to your own or to output the certificates to those paths.

Nginx configuration

Use the following configuration to expose omni with nginx. Make sure to change the domain name ($OMNI_DOMAIN) to your own domain and to update the certificate paths if applicable.

http {
	proxy_redirect          off;
	proxy_connect_timeout   60s;
	proxy_send_timeout      60s;
	proxy_read_timeout      60s;
	proxy_http_version      1.1;
	# $connection_upgrade is used for websocket proxying
	map $http_upgrade $connection_upgrade {
		default upgrade;
		''      close;
	}
    server {
		listen 0.0.0.0:80 ;
		listen [::0]:80 ;
		server_name $OMNI_DOMAIN ;
		location / {
			return 301 https://$host$request_uri;
		}
	}
	server {
		listen 0.0.0.0:443 http2 ssl ;
		listen [::0]:443 http2 ssl ;
		server_name $OMNI_DOMAIN ;
		ssl_certificate /var/lib/acme/omni/fullchain.pem;
		ssl_certificate_key /var/lib/acme/omni/key.pem;
		ssl_trusted_certificate /var/lib/acme/omni/chain.pem;
		location / {
			proxy_pass http://127.0.0.1:8080;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection $connection_upgrade;
			grpc_pass grpc://127.0.0.1:8080;
		}
	}
	server {
		listen 0.0.0.0:443 http2 ssl ;
		listen [::0]:443 http2 ssl ;
		server_name api.$OMNI_DOMAIN ;
		ssl_certificate /var/lib/acme/omni_api/fullchain.pem;
		ssl_certificate_key /var/lib/acme/omni_api/key.pem;
		ssl_trusted_certificate /var/lib/acme/omni_api/chain.pem;
		location / {
			grpc_pass grpc://127.0.0.1:8090;
		}
	}
	server {
		listen 0.0.0.0:443 http2 ssl ;
		listen [::0]:443 http2 ssl ;
		server_name kube.$OMNI_DOMAIN ;
		ssl_certificate /var/lib/acme/omni_kube/fullchain.pem;
		ssl_certificate_key /var/lib/acme/omni_kube/key.pem;
		ssl_trusted_certificate /var/lib/acme/omni_kube/chain.pem;
		location / {
			proxy_pass http://127.0.0.1:8100;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection $connection_upgrade;
		}
	}
}

How to use

The omni instance will be available at https://$OMNI_DOMAIN/, the API at https://api.$OMNI_DOMAIN/ and the kubernetes proxy at https://kube.$OMNI_DOMAIN/.