{{ define "upstream" }} {{ if .Address }} {{/* If we got the containers from swarm and this container's port is published to host, use host IP:PORT */}} {{ if and .Container.Node.ID .Address.HostPort }} # {{ .Container.Node.Name }}/{{ .Container.Name }} server {{ .Container.Node.Address.IP }}:{{ .Address.HostPort }}; {{/* If there is no swarm node or the port is not published on host, use container's IP:PORT */}} {{ else }} # {{ .Container.Name }} server {{ .Address.IP }}:{{ .Address.Port }}; {{ end }} {{ else }} # {{ .Container.Name }} server {{ .Container.IP }} down; {{ end }} {{ end }} # 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 }} server { server_name _; # This is just an invalid value which will never trigger on a real hostname. listen 80; access_log /var/log/nginx/access.log vhost; return 503; } {{ if (and (exists "/etc/nginx/certs/default.crt") (exists "/etc/nginx/certs/default.key")) }} server { server_name _; # This is just an invalid value which will never trigger on a real hostname. listen 443 ssl http2; access_log /var/log/nginx/access.log vhost; return 503; ssl_certificate /etc/nginx/certs/default.crt; ssl_certificate_key /etc/nginx/certs/default.key; } {{ end }} {{ range $host, $containers := groupByMulti $ "Env.VIRTUAL_HOST" "," }} upstream {{ $host }} { {{ range $container := $containers }} {{ $addrLen := len $container.Addresses }} {{/* If only 1 port exposed, use that */}} {{ if eq $addrLen 1 }} {{ $address := index $container.Addresses 0 }} {{ template "upstream" (dict "Container" $container "Address" $address) }} {{/* If more than one port exposed, use the one matching VIRTUAL_PORT env var, falling back to standard web port 80 */}} {{ else }} {{ $port := coalesce $container.Env.VIRTUAL_PORT "80" }} {{ $address := where $container.Addresses "Port" $port | first }} {{ template "upstream" (dict "Container" $container "Address" $address) }} {{ end }} {{ end }} } {{ $https_method := or ($.Env.HTTPS_METHOD) "redirect" }} {{ $default_host := or ($.Env.DEFAULT_HOST) "" }} {{ $default_server := index (dict $host "" $default_host "default_server") $host }} {{/* Get the VIRTUAL_PROTO defined by containers w/ the same vhost, falling back to "http" */}} {{ $proto := or (first (groupByKeys $containers "Env.VIRTUAL_PROTO")) "http" }} {{/* Get the first cert name defined by containers w/ the same vhost */}} {{ $certName := (first (groupByKeys $containers "Env.CERT_NAME")) }} {{/* Get the best matching cert by name for the vhost. */}} {{ $vhostCert := (closest (dir "/etc/nginx/certs") (printf "%s.crt" $host))}} {{/* vhostCert is actually a filename so remove any suffixes since they are added later */}} {{ $vhostCert := replace $vhostCert ".crt" "" -1 }} {{ $vhostCert := replace $vhostCert ".key" "" -1 }} {{/* Use the cert specifid on the container or fallback to the best vhost match */}} {{ $cert := (coalesce $certName $vhostCert) }} {{ $is_https := (and (ne $cert "") (exists (printf "/etc/nginx/certs/%s.crt" $cert)) (exists (printf "/etc/nginx/certs/%s.key" $cert))) }} {{ if $is_https }} {{ if eq $https_method "redirect" }} server { server_name {{ $host }}; listen 80 {{ $default_server }}; access_log /var/log/nginx/access.log vhost; return 301 https://$host$request_uri; } {{ end }} server { server_name {{ $host }}; listen 443 ssl http2 {{ $default_server }}; access_log /var/log/nginx/access.log vhost; ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA; ssl_prefer_server_ciphers on; ssl_session_timeout 5m; ssl_session_cache shared:SSL:50m; ssl_certificate /etc/nginx/certs/{{ (printf "%s.crt" $cert) }}; ssl_certificate_key /etc/nginx/certs/{{ (printf "%s.key" $cert) }}; {{ if (exists (printf "/etc/nginx/certs/%s.dhparam.pem" $cert)) }} ssl_dhparam {{ printf "/etc/nginx/certs/%s.dhparam.pem" $cert }}; {{ end }} add_header Strict-Transport-Security "max-age=31536000"; {{ 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 }} {{ if or (eq $is_ssl false) (eq $https_method "noredirect") }} server { server_name {{ $host }}; listen 80 {{ $default_server }}; access_log /var/log/nginx/access.log vhost; {{ 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 }} } } {{ if (and (exists "/etc/nginx/certs/default.crt") (exists "/etc/nginx/certs/default.key")) }} server { server_name {{ $host }}; listen 443 ssl http2 {{ $default_server }}; access_log /var/log/nginx/access.log vhost; return 503; ssl_certificate /etc/nginx/certs/default.crt; ssl_certificate_key /etc/nginx/certs/default.key; } {{ end }} {{ end }} {{ end }}