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server_config/sys/srv/authentik.nix
2024-08-27 19:12:09 -06:00

111 lines
4.2 KiB
Nix

{
lib,
pkgs,
flakes,
...
}:
with lib; {
imports = [flakes.authentik-nix.nixosModules.default];
options = {
services.nginx.virtualHosts = mkOption {
type = with lib.types;
attrsOf (
submodule
(
{config, ...}: {
options = {
enableAuthentik = mkOption {
default = false;
type = bool;
};
locations = mkOption {
type = attrsOf (
submodule {
config = mkIf config.enableAuthentik {
extraConfig = ''
auth_request /outpost.goauthentik.io/auth/nginx;
error_page 401 = @goauthentik_proxy_signin;
auth_request_set $auth_cookie $upstream_http_set_cookie;
add_header Set-Cookie $auth_cookie;
# translate headers from the outposts back to the actual upstream
auth_request_set $authentik_username $upstream_http_x_authentik_username;
auth_request_set $authentik_groups $upstream_http_x_authentik_groups;
auth_request_set $authentik_email $upstream_http_x_authentik_email;
auth_request_set $authentik_name $upstream_http_x_authentik_name;
auth_request_set $authentik_uid $upstream_http_x_authentik_uid;
proxy_set_header X-authentik-username $authentik_username;
proxy_set_header X-authentik-groups $authentik_groups;
proxy_set_header X-authentik-email $authentik_email;
proxy_set_header X-authentik-name $authentik_name;
proxy_set_header X-authentik-uid $authentik_uid;
'';
};
}
);
};
};
config = mkIf config.enableAuthentik {
extraConfig = ''
proxy_buffers 8 16k;
proxy_buffer_size 32k;
location /outpost.goauthentik.io {
proxy_pass http://localhost:9000/outpost.goauthentik.io;
# ensure the host of this vserver matches your external URL you've configured
# in authentik
proxy_set_header Host $host;
proxy_redirect http://localhost:9000 https://auth.posixlycorrect.com;
proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
add_header Set-Cookie $auth_cookie;
auth_request_set $auth_cookie $upstream_http_set_cookie;
# required for POST requests to work
proxy_pass_request_body off;
proxy_set_header Content-Length "";
}
location @goauthentik_proxy_signin {
internal;
add_header Set-Cookie $auth_cookie;
return 302 /outpost.goauthentik.io/start?rd=$scheme://$http_host$request_uri;
# For domain level, use the below error_page to redirect to your authentik server with the full redirect path
# return 302 https://authentik.company/outpost.goauthentik.io/start?rd=$scheme://$http_host$request_uri;
}
'';
};
}
)
);
};
};
config = {
services = {
authentik = {
enable = true;
environmentFile = "/var/trust/authentik/authentik-env";
nginx = {
enable = true;
enableACME = true;
host = "auth.posixlycorrect.com";
};
settings = {
email = {
host = "smtp.fastmail.com";
port = 587;
username = "fabianmontero@fastmail.com";
use_tls = true;
use_ssl = false;
from = "auth@posixlycorrect.com";
};
disable_startup_analytics = true;
avatars = "initials";
};
};
};
};
}