{{ $CurrentContainer := where $ “ID” .Docker.CurrentContainerID | first }}

{{ 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 if .Network }}
                # {{ .Container.Name }}
                server {{ .Network.IP }}:{{ .Address.Port }};
        {{ end }}
{{ else if .Network }}
        # {{ .Container.Name }}
        {{ if .Network.IP }}
                server {{ .Network.IP }} down;
        {{ else }}
                server 127.0.0.1 down;
        {{ end }}
{{ 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;

}

# Apply fix for very long server names server_names_hash_bucket_size 128;

# Default dhparam {{ if (exists “/etc/nginx/dhparam/dhparam.pem”) }} ssl_dhparam /etc/nginx/dhparam/dhparam.pem; {{ end }}

# 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; server_tokens off;

# Default is client_max_body_size 1M client_max_body_size 5M;

{{ 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 }}

{{ $enable_ipv6 := eq (or ($.Env.ENABLE_IPV6) “”) “true” }} server {

server_name _; # This is just an invalid value which will never trigger on a real hostname.
listen 80;
{{ if $enable_ipv6 }}
listen [::]:80;
{{ end }}
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;
{{ if $enable_ipv6 }}
listen [::]:443 ssl http2;
{{ end }}
access_log /var/log/nginx/access.log vhost;
return 503;

ssl_session_tickets off;
ssl_certificate /etc/nginx/certs/default.crt;
ssl_certificate_key /etc/nginx/certs/default.key;

} {{ end }}

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

{{ $host := trim $host }} {{ $is_regexp := hasPrefix “~” $host }} {{ $upstream_name := when $is_regexp (sha1 $host) $host }}

# {{ $host }} upstream {{ $upstream_name }} {

{{ range $container := $containers }}

{{ $addrLen := len $container.Addresses }}

{{ range $knownNetwork := $CurrentContainer.Networks }}
        {{ range $containerNetwork := $container.Networks }}
                {{ if (and (ne $containerNetwork.Name "ingress") (or (eq $knownNetwork.Name $containerNetwork.Name) (eq $knownNetwork.Name "host"))) }}
                        ## Can be connected with "{{ $containerNetwork.Name }}" network

                        {{/* 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 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 "Network" $containerNetwork) }}
                        {{ end }}
                {{ else }}
                        # Cannot connect to network of this container
                        server 127.0.0.1 down;
                {{ 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 HTTPS_METHOD defined by containers w/ the same vhost, falling back to “redirect” */}} {{ $https_method := or (first (groupByKeys $containers “Env.HTTPS_METHOD”)) “redirect” }}

{{/* Get the SSL_POLICY defined by containers w/ the same vhost, falling back to “Mozilla-Intermediate” */}} {{ $ssl_policy := or (first (groupByKeys $containers “Env.SSL_POLICY”)) “Mozilla-Intermediate” }}

{{/* Get the HSTS defined by containers w/ the same vhost, falling back to “max-age=31536000” */}} {{ $hsts := or (first (groupByKeys $containers “Env.HSTS”)) “max-age=31536000” }}

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

{{/* 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 := trimSuffix “.crt” $vhostCert }} {{ $vhostCert := trimSuffix “.key” $vhostCert }}

{{/* Use the cert specified on the container or fallback to the best vhost match */}} {{ $cert := (coalesce $certName $vhostCert) }}

{{ $is_https := (and (ne $https_method “nohttps”) (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 }};
{{ if $enable_ipv6 }}
listen [::]:80 {{ $default_server }};
{{ end }}
access_log /var/log/nginx/access.log vhost;
return 301 https://$host$request_uri;

} {{ end }}

server {

server_name {{ $host }};
listen 443 ssl http2 {{ $default_server }};
{{ if $enable_ipv6 }}
listen [::]:443 ssl http2 {{ $default_server }};
{{ end }}
access_log /var/log/nginx/access.log vhost;

{{ if eq $network_tag "internal" }}
# Only allow traffic from internal clients
include /etc/nginx/network_internal.conf;
{{ end }}

{{ if eq $ssl_policy "Mozilla-Modern" }}
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
{{ else if eq $ssl_policy "Mozilla-Intermediate" }}
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:!DSS';
{{ else if eq $ssl_policy "Mozilla-Old" }}
ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305: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:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:DES-CBC3-SHA:HIGH:SEED:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!RSAPSK:!aDH:!aECDH:!EDH-DSS-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA:!SRP';
{{ else if eq $ssl_policy "AWS-TLS-1-2-2017-01" }}
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:AES128-GCM-SHA256:AES128-SHA256:AES256-GCM-SHA384:AES256-SHA256';
{{ else if eq $ssl_policy "AWS-TLS-1-1-2017-01" }}
ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA';
{{ else if eq $ssl_policy "AWS-2016-08" }}
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA';
{{ else if eq $ssl_policy "AWS-2015-05" }}
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DES-CBC3-SHA';
{{ else if eq $ssl_policy "AWS-2015-03" }}
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DHE-DSS-AES128-SHA:DES-CBC3-SHA';
{{ else if eq $ssl_policy "AWS-2015-02" }}
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DHE-DSS-AES128-SHA';
{{ end }}

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

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 }}

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

{{ if (and (ne $https_method "noredirect") (ne $hsts "off")) }}
add_header Strict-Transport-Security "{{ trim $hsts }}" always;
{{ 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 $upstream_name }};
        {{ else }}
        set {{`$proxy_pass_url`}} {{ trim $proto }}://{{ trim $upstream_name }};
        if ({{`$cookie_appenv`}}) {
                set {{`$proxy_pass_url`}} {{ trim $proto }}://{{`$cookie_appenv`}}.{{ trim $upstream_name }};
        }
        proxy_pass {{`$proxy_pass_url`}};
        {{ end }}

        {{ 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 (not $is_https) (eq $https_method “noredirect”) }}

server {

server_name {{ $host }};
listen 80 {{ $default_server }};
{{ if $enable_ipv6 }}
listen [::]:80 {{ $default_server }};
{{ end }}
access_log /var/log/nginx/access.log vhost;

{{ if eq $network_tag "internal" }}
# Only allow traffic from internal clients
include /etc/nginx/network_internal.conf;
{{ 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 $upstream_name }};
        {{ else }}
        set {{`$proxy_pass_url`}} {{ trim $proto }}://{{ trim $upstream_name }};
        if ({{`$cookie_appenv`}}) {
                set {{`$proxy_pass_url`}} {{ trim $proto }}://{{`$cookie_appenv`}}.{{ trim $upstream_name }};
        }
        proxy_pass {{`$proxy_pass_url`}};
        {{ end }}
        {{ 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 (not $is_https) (exists “/etc/nginx/certs/default.crt”) (exists “/etc/nginx/certs/default.key”)) }} server {

server_name {{ $host }};
listen 443 ssl http2 {{ $default_server }};
{{ if $enable_ipv6 }}
listen [::]:443 ssl http2 {{ $default_server }};
{{ end }}
access_log /var/log/nginx/access.log vhost;
return 500;

ssl_certificate /etc/nginx/certs/default.crt;
ssl_certificate_key /etc/nginx/certs/default.key;

} {{ end }}

{{ end }} {{ end }}