nginx.tmpl

{{ $CurrentContainer := where $ "Hostname" .Env.HOSTNAME | first }}
{{ $TLD := .Env.DOMAIN_TLD }}

# If we receive X-Forwarded-Proto, pass it through; otherwise, pass along the
# scheme used to connect to this server
map $http_x_forwarded_proto $proxy_x_forwarded_proto {
  default $http_x_forwarded_proto;
  ''      $scheme;
}

# If we receive Upgrade, set Connection to "upgrade"; otherwise, delete any
# Connection header that may have been passed to this server
map $http_upgrade $proxy_connection {
  default upgrade;
  '' close;
}

gzip_types text/plain text/css application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

log_format vhost '$host $remote_addr - $remote_user [$time_local] '
                 '"$request" $status $body_bytes_sent '
                 '"$http_referer" "$http_user_agent"';

access_log off;

{{ if (exists "/etc/nginx/proxy.conf") }}
include /etc/nginx/proxy.conf;
{{ else }}
# HTTP 1.1 support
proxy_http_version 1.1;
proxy_buffering off;
proxy_set_header Host $http_host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $proxy_connection;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $proxy_x_forwarded_proto;
{{ end }}

{{ define "server" }}
{{/* Get the VIRTUAL_PROTO defined by containers w/ the same vhost, falling back to "http" */}}
{{ $proto := or (first (groupByKeys .Containers "Env.VIRTUAL_PROTO")) "http" }}

upstream {{ .Host }} {
{{ range $container := .Containers }}
	{{ $port := coalesce $container.Env.VIRTUAL_PORT (first $container.Addresses).Port "80" }}
	{{ $address := or (first $container.Addresses).IP (first $container.Networks).IP }}
	server {{ $address }}:{{ $port }};
{{ end }}
}

server {
	server_name {{ .Host }};
	listen 80;
	access_log /var/log/nginx/access.log vhost;

        listen 443 ssl;
        ssl_certificate /etc/nginx/certs/default.crt;
        ssl_certificate_key /etc/nginx/certs/default.key;

	{{ if (exists (printf "/etc/nginx/vhost.d/%s" .Host)) }}
	include {{ printf "/etc/nginx/vhost.d/%s" .Host }};
	{{ else if (exists "/etc/nginx/vhost.d/default") }}
	include /etc/nginx/vhost.d/default;
	{{ end }}

	location / {
		proxy_pass {{ trim $proto }}://{{ trim .Host }};
		{{ if (exists (printf "/etc/nginx/htpasswd/%s" .Host)) }}
		auth_basic	"Restricted {{ .Host }}";
		auth_basic_user_file	{{ (printf "/etc/nginx/htpasswd/%s" .Host) }};
		{{ end }}
                {{ if (exists (printf "/etc/nginx/vhost.d/%s_location" .Host)) }}
                include {{ printf "/etc/nginx/vhost.d/%s_location" .Host}};
                {{ else if (exists "/etc/nginx/vhost.d/default_location") }}
                include /etc/nginx/vhost.d/default_location;
                {{ end }}
	}
}
{{ end }}

{{ $explicit := whereExist $ "Env.VIRTUAL_HOST" }}
{{ range $host, $containers := groupByMulti $explicit "Env.VIRTUAL_HOST" "," }}
	{{ template "server" (dict "Containers" $containers "Host" $host) }}
{{ end }}

{{ range $project, $projContainers := groupByLabel $ "com.docker.compose.project" }}
  {{ range $service, $containers := groupByLabel $projContainers "com.docker.compose.service" }}
		{{ $host := printf "%s.%s.%s" $service $project $TLD }}
    {{/* Don't create the implicit host if an explicit VIRTUAL_HOST with the same name has been defined */}}
    {{ if eq 0 (len (where $ "Env.VIRTUAL_HOST" $host)) }}
  	  {{ $container := first $containers }}
  		{{ template "server" (dict "Containers" $containers "Host" $host) }}
    {{ end }}
	{{ end }}
{{ end }}