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dokku/plugins/nginx-vhosts/templates/nginx.conf.sigil
Jose Diaz-Gonzalez bf2795640c feat: make coredns-docker upstream resolution opt-in
The bundled `nginx.conf.sigil` keeps rendering IP-based upstreams unless `dns-resolver` is set, for example with `dokku nginx:set --global dns-resolver 127.0.0.1:1053`. Unsetting the property reverts to IP-based upstreams, replacing the previous `off` sentinel.
2026-11-06 20:51:33 -05:00

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{{ range $port_map := .PROXY_PORT_MAP | split " " }}
{{ $port_map_list := $port_map | split ":" }}
{{ $scheme := index $port_map_list 0 }}
{{ $listen_port := index $port_map_list 1 }}
{{ $upstream_port := index $port_map_list 2 }}
{{ if or (eq $scheme "http") (eq $scheme "https") }}
{{ $is_ssl := eq $scheme "https" }}
{{ $is_redirect := and (not $is_ssl) (eq $listen_port "80") $.SSL_INUSE }}
server {
{{ if $is_ssl }}
{{ if eq $.HTTP2_DIRECTIVE_SUPPORTED "true" }}
listen [{{ $.NGINX_BIND_ADDRESS_IP6 }}]:{{ $listen_port }} ssl;
listen {{ if $.NGINX_BIND_ADDRESS_IP4 }}{{ $.NGINX_BIND_ADDRESS_IP4 }}:{{end}}{{ $listen_port }} ssl;
http2 on;
{{ else }}
listen [{{ $.NGINX_BIND_ADDRESS_IP6 }}]:{{ $listen_port }} ssl http2;
listen {{ if $.NGINX_BIND_ADDRESS_IP4 }}{{ $.NGINX_BIND_ADDRESS_IP4 }}:{{end}}{{ $listen_port }} ssl http2;
{{ end }}
{{ else }}
listen [{{ $.NGINX_BIND_ADDRESS_IP6 }}]:{{ $listen_port }};
listen {{ if $.NGINX_BIND_ADDRESS_IP4 }}{{ $.NGINX_BIND_ADDRESS_IP4 }}:{{end}}{{ $listen_port }};
{{ end }}
{{ if and $is_ssl $.SSL_SERVER_NAME }}server_name {{ $.SSL_SERVER_NAME }}; {{ end }}
{{ if $.NOSSL_SERVER_NAME }}server_name {{ $.NOSSL_SERVER_NAME }}; {{ end }}
access_log {{ $.NGINX_ACCESS_LOG_PATH }}{{ if and ($.NGINX_ACCESS_LOG_FORMAT) (ne $.NGINX_ACCESS_LOG_PATH "off") }} {{ $.NGINX_ACCESS_LOG_FORMAT }}{{ end }};
error_log {{ $.NGINX_ERROR_LOG_PATH }};
underscores_in_headers {{ $.NGINX_UNDERSCORE_IN_HEADERS }};
client_body_timeout {{ $.CLIENT_BODY_TIMEOUT }};
client_header_timeout {{ $.CLIENT_HEADER_TIMEOUT }};
keepalive_timeout {{ $.KEEPALIVE_TIMEOUT }};
lingering_timeout {{ $.LINGERING_TIMEOUT }};
send_timeout {{ $.SEND_TIMEOUT }};
{{ if $is_ssl }}
ssl_certificate {{ $.APP_SSL_PATH }}/server.crt;
ssl_certificate_key {{ $.APP_SSL_PATH }}/server.key;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_prefer_server_ciphers off;
{{ end }}
{{ if $is_redirect }}
include {{ $.DOKKU_ROOT }}/{{ $.APP }}/nginx.conf.d/*.conf;
location / {
return 301 https://$host:{{ $.PROXY_SSL_PORT }}$request_uri;
}
{{ else }}
{{ range $route := $.PROXY_ROUTES | split " " }}
{{ if $route }}
{{ $r := $route | split "|" }}
{{ $route_proc := index $r 0 }}
{{ $route_port := index $r 1 }}
{{ $route_path := index $r 2 }}
{{ $route_strip := index $r 3 }}
location {{ $route_path }} {
proxy_pass http://{{ $.APP }}-{{ $route_proc }}-{{ $route_port }}{{ if eq $route_strip "1" }}/{{ end }};
proxy_http_version 1.1;
proxy_connect_timeout {{ $.PROXY_CONNECT_TIMEOUT }};
proxy_read_timeout {{ $.PROXY_READ_TIMEOUT }};
proxy_send_timeout {{ $.PROXY_SEND_TIMEOUT }};
proxy_buffer_size {{ $.PROXY_BUFFER_SIZE }};
proxy_buffering {{ $.PROXY_BUFFERING }};
proxy_buffers {{ $.PROXY_BUFFERS }};
proxy_busy_buffers_size {{ $.PROXY_BUSY_BUFFERS_SIZE }};
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For {{ $.PROXY_X_FORWARDED_FOR }};
proxy_set_header X-Forwarded-Port {{ $.PROXY_X_FORWARDED_PORT }};
proxy_set_header X-Forwarded-Proto {{ $.PROXY_X_FORWARDED_PROTO }};
proxy_set_header X-Request-Start $msec;
{{ if $.PROXY_X_FORWARDED_SSL }}proxy_set_header X-Forwarded-Ssl {{ $.PROXY_X_FORWARDED_SSL }};{{ end }}
}
{{ end }}
{{ end }}
location / {
{{ if $.DOKKU_APP_WEB_LISTENERS }}
gzip on;
gzip_min_length 1100;
gzip_buffers 4 32k;
gzip_types text/css text/javascript text/xml text/plain text/x-component application/javascript application/x-javascript application/wasm application/json application/graphql-response+json application/xml application/rss+xml font/truetype application/x-font-ttf font/opentype application/vnd.ms-fontobject image/svg+xml;
gzip_vary on;
gzip_comp_level 6;
{{ if $.NGINX_DNS_RESOLVER }}
resolver {{ $.NGINX_DNS_RESOLVER }} valid=10s ipv6=off;
resolver_timeout {{ $.NGINX_DNS_RESOLVER_TIMEOUT }};
set $dokku_upstream "{{ $.DOKKU_APP_WEB_LISTENER_HOST }}:{{ $upstream_port }}";
proxy_pass http://$dokku_upstream;
{{ else }}
proxy_pass http://{{ $.APP }}-{{ $upstream_port }};
{{ end }}
{{ if and $is_ssl (eq $.HTTP2_PUSH_SUPPORTED "true") }}http2_push_preload on; {{ end }}
proxy_http_version {{ $.PROXY_HTTP_VERSION }};
proxy_connect_timeout {{ $.PROXY_CONNECT_TIMEOUT }};
proxy_read_timeout {{ $.PROXY_READ_TIMEOUT }};
proxy_send_timeout {{ $.PROXY_SEND_TIMEOUT }};
proxy_buffer_size {{ $.PROXY_BUFFER_SIZE }};
proxy_buffering {{ $.PROXY_BUFFERING }};
proxy_buffers {{ $.PROXY_BUFFERS }};
proxy_busy_buffers_size {{ $.PROXY_BUSY_BUFFERS_SIZE }};
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For {{ $.PROXY_X_FORWARDED_FOR }};
proxy_set_header X-Forwarded-Port {{ $.PROXY_X_FORWARDED_PORT }};
proxy_set_header X-Forwarded-Proto {{ $.PROXY_X_FORWARDED_PROTO }};
proxy_set_header X-Request-Start $msec;
{{ if $.PROXY_X_FORWARDED_SSL }}proxy_set_header X-Forwarded-Ssl {{ $.PROXY_X_FORWARDED_SSL }};{{ end }}
{{ else }}
return 502;
{{ end }}
}
client_max_body_size {{ $.CLIENT_MAX_BODY_SIZE }};
error_page 400 401 402 403 405 406 407 408 409 410 411 412 413 414 415 416 417 418 420 422 423 424 426 428 429 431 444 449 450 451 /400-error.html;
location /400-error.html {
root {{ $.DOKKU_LIB_ROOT }}/data/nginx-vhosts/dokku-errors;
internal;
}
error_page 404 /404-error.html;
location /404-error.html {
root {{ $.DOKKU_LIB_ROOT }}/data/nginx-vhosts/dokku-errors;
internal;
}
{{ if $is_ssl }}
error_page 500 501 503 504 505 506 507 508 509 510 511 /500-error.html;
{{ else }}
error_page 500 501 502 503 504 505 506 507 508 509 510 511 /500-error.html;
{{ end }}
location /500-error.html {
root {{ $.DOKKU_LIB_ROOT }}/data/nginx-vhosts/dokku-errors;
internal;
}
{{ if $is_ssl }}
error_page 502 /502-error.html;
location /502-error.html {
root {{ $.DOKKU_LIB_ROOT }}/data/nginx-vhosts/dokku-errors;
internal;
}
{{ end }}
include {{ $.DOKKU_ROOT }}/{{ $.APP }}/nginx.conf.d/*.conf;
{{ end }}
}
{{ else if or (eq $scheme "grpc") (eq $scheme "grpcs") }}
{{ if $.DOKKU_APP_WEB_LISTENERS }}
{{ $is_ssl := eq $scheme "grpcs" }}
server {
{{ if eq $.HTTP2_DIRECTIVE_SUPPORTED "true" }}
listen [{{ $.NGINX_BIND_ADDRESS_IP6 }}]:{{ $listen_port }}{{ if $is_ssl }} ssl{{ end }};
listen {{ if $.NGINX_BIND_ADDRESS_IP4 }}{{ $.NGINX_BIND_ADDRESS_IP4 }}:{{end}}{{ $listen_port }}{{ if $is_ssl }} ssl{{ end }};
http2 on;
{{ else }}
listen [{{ $.NGINX_BIND_ADDRESS_IP6 }}]:{{ $listen_port }}{{ if $is_ssl }} ssl{{ end }} http2;
listen {{ if $.NGINX_BIND_ADDRESS_IP4 }}{{ $.NGINX_BIND_ADDRESS_IP4 }}:{{end}}{{ $listen_port }}{{ if $is_ssl }} ssl{{ end }} http2;
{{ end }}
{{ if $.NOSSL_SERVER_NAME }}server_name {{ $.NOSSL_SERVER_NAME }}; {{ end }}
access_log {{ $.NGINX_ACCESS_LOG_PATH }}{{ if and ($.NGINX_ACCESS_LOG_FORMAT) (ne $.NGINX_ACCESS_LOG_PATH "off") }} {{ $.NGINX_ACCESS_LOG_FORMAT }}{{ end }};
error_log {{ $.NGINX_ERROR_LOG_PATH }};
underscores_in_headers {{ $.NGINX_UNDERSCORE_IN_HEADERS }};
{{ if $is_ssl }}
ssl_certificate {{ $.APP_SSL_PATH }}/server.crt;
ssl_certificate_key {{ $.APP_SSL_PATH }}/server.key;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_prefer_server_ciphers off;
{{ end }}
location / {
{{ if $.NGINX_DNS_RESOLVER }}
resolver {{ $.NGINX_DNS_RESOLVER }} valid=10s ipv6=off;
resolver_timeout {{ $.NGINX_DNS_RESOLVER_TIMEOUT }};
set $dokku_upstream "{{ $.DOKKU_APP_WEB_LISTENER_HOST }}:{{ $upstream_port }}";
grpc_pass grpc://$dokku_upstream;
{{ else }}
grpc_pass grpc://{{ $.APP }}-{{ $upstream_port }};
{{ end }}
}
client_max_body_size {{ $.CLIENT_MAX_BODY_SIZE }};
include {{ $.DOKKU_ROOT }}/{{ $.APP }}/nginx.conf.d/*.conf;
}
{{ end }}
{{ end }}
{{ end }}
{{ if not $.NGINX_DNS_RESOLVER }}
{{ if $.DOKKU_APP_WEB_LISTENERS }}
{{ range $upstream_port := $.PROXY_UPSTREAM_PORTS | split " " }}
upstream {{ $.APP }}-{{ $upstream_port }} {
{{ if $.PROXY_KEEPALIVE }} keepalive {{ $.PROXY_KEEPALIVE }};{{ end }}
{{ range $listeners := $.DOKKU_APP_WEB_LISTENERS | split " " }}
{{ $listener_list := $listeners | split ":" }}
{{ $listener_ip := index $listener_list 0 }}
server {{ $listener_ip }}:{{ $upstream_port }};{{ end }}
}
{{ end }}{{ end }}{{ end }}
{{ range $entry := $.PROXY_ROUTE_LISTENERS | split " " }}
{{ if $entry }}
{{ $e := $entry | split "|" }}
{{ $route_proc := index $e 0 }}
{{ $route_port := index $e 1 }}
{{ $route_csv := index $e 2 }}
upstream {{ $.APP }}-{{ $route_proc }}-{{ $route_port }} {
{{ if $.PROXY_KEEPALIVE }} keepalive {{ $.PROXY_KEEPALIVE }};{{ end }}
{{ range $listener := $route_csv | split "," }}
{{ $listener_list := $listener | split ":" }}
{{ $listener_ip := index $listener_list 0 }}
server {{ $listener_ip }}:{{ $route_port }};{{ end }}
}
{{ end }}
{{ end }}