github.com/drud/ddev@v1.21.5-alpha1.0.20230226034409-94fcc4b94453/containers/ddev-router/nginx.tmpl

{{ define "upstream" }}
    {{ if .Address }}
        {{ if .Network }}
            # Container={{ .Container.Name }} {{ .Network.IP }}:{{ .Address.Port }}
            server {{ .Container.Name }}:{{ .Address.Port }};
        {{ end }}
    {{ else if .Network }}
            # Container={{ .Container.Name }} (down)
        server {{ .Network.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 X-Forwarded-Port, pass it through; otherwise, pass along the
# server port the client connected to
map $http_x_forwarded_port $proxy_x_forwarded_port {
  default $http_x_forwarded_port;
  ''      $server_port;
}

# 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;
}

# Default dhparam
# ssl_dhparam /etc/nginx/dhparam/dhparam.pem;

# Set appropriate X-Forwarded-Ssl header
map $scheme $proxy_x_forwarded_ssl {
  default off;
  https on;
}

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;

client_max_body_size 0;

{{ if $.Env.RESOLVERS }}
resolver {{ $.Env.RESOLVERS }};
{{ end }}

{{ 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;
proxy_set_header X-Forwarded-Ssl $proxy_x_forwarded_ssl;
proxy_set_header X-Forwarded-Port $proxy_x_forwarded_port;

# Mitigate httpoxy attack (see README for details)
proxy_set_header Proxy "";
{{ end }}

server {
    # Listen on all configured https ports + 80 + 443 (HTTPS_EXPOSE)
    # So that we can redirect any server_name that is invalid
    include /tmp/http_ports.conf;
    include /tmp/https_ports.conf;

    access_log /var/log/nginx/access.log vhost;

    error_page 503 @noupstream;
    location @noupstream {
        rewrite ^(.*)$ /503.html break;
        root /app;
    }

    location / {
        return 503;
    }

    ## provide a health check endpoint
    location = /healthcheck {
        access_log off;
        return 200;
    }
    ssl_session_tickets off;
    ssl_certificate /etc/nginx/certs/master.crt;
    ssl_certificate_key /etc/nginx/certs/master.key;
}

{{ range $host, $containers := groupByMulti $ "Env.VIRTUAL_HOST" "," }}

{{ $host := trim $host }}

{{ range $container := $containers }}
    {{/* HTTP_EXPOSE replaces the VIRTUAL_PORT var originally provided by jwilder/nginx-proxy. */}}
    {{/* HTTP_EXPOSE provides comma-separated ports to serve for container. Ports can be defined as hostPort:containerPort */}}
    {{ $ports := coalesce $container.Env.HTTP_EXPOSE "80" }}
    {{ $ports := split $ports "," }}
    # ports={{ $ports }}
    {{ range $port := $ports }}
        {{/* process values in hostPort:containerPort docker format, containerPort is upstream */}}
        {{ $container_ports := split $port ":" }}
        # container_ports={{ $container_ports }}
        {{ $upstream_port := last $container_ports }}
        {{ $bound_port := first $container_ports }}
        # bound_port={{$bound_port}}
        # upstream_port={{$upstream_port}}

        {{ $upstream_name := print $host "-" $container.Name "-" $upstream_port }}

        upstream {{ $upstream_name }} {
            keepalive 100;
        {{ $addrLen := len $container.Addresses }}

        {{/* jonaseberle/github-action-setup-ddev version */}}
        {{ range $containerNetwork := $container.Networks }}
            {{ if eq $containerNetwork.Name "ddev_default" }}
                {{/* If only 1 port exposed, use that */}}
                {{ if eq $addrLen 1 }}
                    {{ $address := index $container.Addresses 0 }}
                    {{ template "upstream" (dict "Container" $container "Address" $address "Network" $containerNetwork) }}
                    {{/* If more than one port exposed, use the one matching HTTP_EXPOSE env var, falling back to standard web port 80 */}}
                {{ else }}
                    {{ $address := where $container.Addresses "Port" $upstream_port | first }}
                    {{/* $port := coalesce $container.Env.VIRTUAL_PORT "80" */}}
                    {{/* $address := where $container.Addresses "Port" $port | first */}}
                    {{ template "upstream" (dict "Container" $container "Address" $address "Network" $containerNetwork) }}
               {{ end }}
            {{ end }}
        {{ end }}
        }
    {{ end }}
{{ end }}

{{ $default_host := or ($.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 := trim (or (first (groupByKeys $containers "Env.VIRTUAL_PROTO")) "http") }}

{{/* Get the NETWORK_ACCESS defined by containers w/ the same vhost, falling back to "external" */}}
{{ $network_tag := or (first (groupByKeys $containers "Env.NETWORK_ACCESS")) "external" }}

{{/* Get the NETWORK_ACCESS defined by containers w/ the same vhost, falling back to "external" */}}
{{ $network_tag := or (first (groupByKeys $containers "Env.NETWORK_ACCESS")) "external" }}

{{/* Get the VIRTUAL_ROOT By containers w/ use fastcgi root */}}
{{ $vhost_root := or (first (groupByKeys $containers "Env.VIRTUAL_ROOT")) "/var/www/public" }}

{{/* Use the master.crt by default */}}
{{ $cert := "master" }}

{{ range $container := whereExist $containers "Env.HTTP_EXPOSE" }}
    {{/* Get the HTTP_EXPOSE defined by containers w/ the same vhost, falling back to port 80 */}}
    {{ $ports := coalesce $container.Env.HTTP_EXPOSE "80" }}
    {{ $ports := split $ports "," }}
    {{ range $port := $ports }}
        {{/* process values in hostPort:containerPort docker format */}}
        {{ $container_ports := split $port ":" }}
        {{/* hostPort is port to listen on */}}
        {{ $listen_port := first $container_ports }}
        {{/* containerPort is upstream */}}
        {{ $bound_port := first $container_ports }}
        {{ $upstream_port := last $container_ports }}
        # container_ports={{$container_ports}}
        # bound_port={{$bound_port}}
        # upstream_port={{$upstream_port}}
        {{ $upstream_name := print $host "-" $container.Name "-" $upstream_port }}

        server {
            server_name {{ $host }};
            listen {{ $listen_port }} {{ $default_server }};
            access_log /var/log/nginx/access.log vhost;

            location @brokenupstream {
                rewrite ^(.*)$ /502.html break;
                root /app;
            }

            {{ if eq $network_tag "internal" }}
            # Only allow traffic from internal clients
            allow 127.0.0.0/8;
            allow 10.0.0.0/8;
            allow 192.168.0.0/16;
            allow 172.16.0.0/12;
            deny all;
            {{ end }}

            {{ 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 / {
                {{ if eq $proto "uwsgi" }}
                include uwsgi_params;
                uwsgi_pass {{ trim $proto }}://{{ trim $upstream_name }};
                {{ else if eq $proto "fastcgi" }}
                root   {{ trim $vhost_root }};
                include fastcgi.conf;
                fastcgi_pass {{ trim $upstream_name }};
                {{ else }}
                proxy_buffer_size   128k;
                proxy_buffers   4 256k;
                proxy_busy_buffers_size   256k;
                proxy_read_timeout 10m;
                proxy_http_version 1.1;
                proxy_pass {{ trim $proto }}://{{ trim $upstream_name }};
                {{ end }}
                error_page 502 @brokenupstream;
                {{ 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 }}

{{ end }}

{{/* HTTPS_EXPOSE works similarly to HTTP_EXPOSE, only no upstreams are created for HTTPS_EXPOSE ports. */}}
{{/* Instead, an existing upstream for HTTP should be defined along with the port to listen for. e.g. 443:80 would listen on 443 and use an existing port 80 upstream */}}
{{ range $container := whereExist $containers "Env.HTTPS_EXPOSE" }}
    {{/* Get the HTTPS_EXPOSE defined by containers w/ the same vhost, falling back to port 443:80 */}}
    {{ $ports := coalesce $container.Env.HTTPS_EXPOSE "443:80" }}
    {{ $ports := split $ports "," }}
    {{ range $port := $ports }}
        {{/* process values in hostPort:containerPort docker format */}}
        {{ $container_ports := split $port ":" }}
        {{/* hostPort is port to listen on */}}
        {{ $listen_port := first $container_ports }}
        {{/* containerPort is upstream */}}
        {{ $upstream_port := last $container_ports }}
        {{ $bound_port := first $container_ports }}
        # bound_port={{ $bound_port }}
        {{ $upstream_name := print $host "-" $container.Name "-" $upstream_port }}

        server {
            server_name {{ $host }};
            listen {{ $listen_port }} ssl {{ $.Env.HTTP2 }} {{ $default_server }};
            access_log /var/log/nginx/access.log vhost;

            location @brokenupstream {
                rewrite ^(.*)$ /502.html break;
                root /app;
            }

            {{ if eq $network_tag "internal" }}
            # Only allow traffic from internal clients
            allow 127.0.0.0/8;
            allow 10.0.0.0/8;
            allow 192.168.0.0/16;
            allow 172.16.0.0/12;
            deny all;
            {{ end }}

            ssl_prefer_server_ciphers on;
            ssl_session_timeout 5m;
            ssl_session_cache shared:SSL:50m;
            ssl_session_tickets off;

            {{ if (exists (printf "/mnt/ddev-global-cache/custom_certs/%s.crt" $host)) }}
                ssl_certificate /mnt/ddev-global-cache/custom_certs/{{ (printf "%s.crt" $host) }};
                ssl_certificate_key /mnt/ddev-global-cache/custom_certs/{{ (printf "%s.key" $host) }};
            {{ else if (exists (printf "/etc/letsencrypt/live/%s/fullchain.pem" $host)) }}
                ssl_certificate /etc/letsencrypt/live/{{ $host }}/fullchain.pem;
                ssl_certificate_key /etc/letsencrypt/live/{{ $host }}/privkey.pem;
            {{ else }}
                ssl_certificate /etc/nginx/certs/{{ (printf "%s.crt" $cert) }};
                ssl_certificate_key /etc/nginx/certs/{{ (printf "%s.key" $cert) }};
            {{ end }}

            {{ if (exists (printf "/etc/nginx/certs/%s.dhparam.pem" $cert)) }}
                ssl_dhparam {{ printf "/etc/nginx/certs/%s.dhparam.pem" $cert }};
            {{ end }}

            {{ if (exists (printf "/etc/nginx/certs/%s.chain.crt" $cert)) }}
                ssl_stapling on;
                ssl_stapling_verify on;
                ssl_trusted_certificate {{ printf "/etc/nginx/certs/%s.chain.crt" $cert }};
            {{ end }}

            {{/* if (ne $https_method "noredirect") */}}
            {{/* add_header Strict-Transport-Security "max-age=31536000"; */}}
            {{/* end */}}

            {{ 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 / {
                {{ if eq $proto "uwsgi" }}
                include uwsgi_params;
                uwsgi_pass {{ trim $proto }}://{{ trim $upstream_name }};
                {{ else if eq $proto "fastcgi" }}
                root   {{ trim $vhost_root }};
                include fastcgi.conf;
                fastcgi_pass {{ trim $upstream_name }};
                {{ else }}
                proxy_buffer_size   128k;
                proxy_buffers   4 256k;
                proxy_busy_buffers_size   256k;
                proxy_read_timeout 10m;
                proxy_http_version 1.1;
                proxy_pass {{ trim $proto }}://{{ trim $upstream_name }};
                {{ end }}
                error_page 502 @brokenupstream;

                {{ 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 }}

{{ end }}

{{ end }}