docker flaskアプリケーションの分散方法

dockerで分散処理をさせる場合、大抵はjwilder/nginx-proxyを使用すれば事足りるのですが、

flaskの場合、ヘッダー情報を加工しないといけないためjwilder/docker-genを用いる必要があります。

docker-gen,nginxを用いた分散の例を載せておきます。

nginx.tmpl


{{ $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 $proxy_add_x_forwarded_for $scheme - $remote_user [$time_local] '
                 '"$request" $status $body_bytes_sent '
                 '"$http_referer" "$http_user_agent"';

access_log off;

{{ 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_redirect     off;
#proxy_set_header Host $http_host;
proxy_set_header Host $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-Proto    $scheme;
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 }};
#       server_name _;
        listen 80 {{ $default_server }};
#       listen 5000 {{ $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 (not (or (eq $https_method "noredirect") (eq $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 }}
                proxy_pass {{ trim $proto }}://{{ trim $upstream_name }};
                {{ 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 }};
#       server_name _;
        listen 80 {{ $default_server }};
#       listen 5000 {{ $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 }}
                proxy_pass {{ trim $proto }}://{{ trim $upstream_name }};
                {{ 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 }}

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

{{/* If we got the containers from swarm and this container's port is published to host, use host IP:PORT */}}

# {{ .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 */}}

# {{ .Container.Name }}

server {{ .Network.IP }}:{{ .Address.Port }};

# {{ .Container.Name }}

server {{ .Network.IP }} down;

server 127.0.0.1 down;

# 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

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 $proxy_add_x_forwarded_for $scheme - $remote_user [$time_local] '

'"$request" $status $body_bytes_sent '

'"$http_referer" "$http_user_agent"';

access_log off;

resolver {{ $.Env.RESOLVERS }};

include /etc/nginx/proxy.conf;

# HTTP 1.1 support

proxy_http_version 1.1;

proxy_buffering off;

proxy_redirect off;

#proxy_set_header Host $http_host;

proxy_set_header Host $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-Proto $scheme;

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 "";

server {

server_name _; # This is just an invalid value which will never trigger on a real hostname.

listen 80;

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;

listen [::]:443 ssl http2;

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;

}

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

# {{ $host }}

upstream {{ $upstream_name }} {

{{ if (and (ne $containerNetwork.Name "ingress") (or (eq $knownNetwork.Name $containerNetwork.Name) (eq $knownNetwork.Name "host"))) }}

## Can be connected with "{{ $containerNetwork.Name }}" network

{{ 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 */}}

{{ $address := where $container.Addresses "Port" $port | first }}

{{ template "upstream" (dict "Container" $container "Address" $address "Network" $containerNetwork) }}

# Cannot connect to network of this container

server 127.0.0.1 down;

}

{{ $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" }}

{{ $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")) }}

{{ $vhostCert := (closest (dir "/etc/nginx/certs") (printf "%s.crt" $host))}}

{{/* vhostCert is actually a filename so remove any suffixes since they are added later */}}

{{/* Use the cert specified on the container or fallback to the best vhost match */}}

{{ $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))) }}

server {

server_name {{ $host }};

# server_name _;

listen 80 {{ $default_server }};

# listen 5000 {{ $default_server }};

listen [::]:80 {{ $default_server }};

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

return 301 https://$host$request_uri;

}

server {

server_name {{ $host }};

listen 443 ssl http2 {{ $default_server }};

listen [::]:443 ssl http2 {{ $default_server }};

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

# Only allow traffic from internal clients

include /etc/nginx/network_internal.conf;

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';

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';

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';

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';

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';

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';

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';

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 }};

ssl_stapling on;

ssl_stapling_verify on;

ssl_trusted_certificate {{ printf "/etc/nginx/certs/%s.chain.pem" $cert }};

{{ if (not (or (eq $https_method "noredirect") (eq $hsts "off"))) }}

add_header Strict-Transport-Security "{{ trim $hsts }}" always;

include {{ printf "/etc/nginx/vhost.d/%s" $host }};

include /etc/nginx/vhost.d/default;

location / {

include uwsgi_params;

uwsgi_pass {{ trim $proto }}://{{ trim $upstream_name }};

root {{ trim $vhost_root }};

include fastcgi.conf;

fastcgi_pass {{ trim $upstream_name }};

proxy_pass {{ trim $proto }}://{{ trim $upstream_name }};

auth_basic "Restricted {{ $host }}";

auth_basic_user_file {{ (printf "/etc/nginx/htpasswd/%s" $host) }};

{{ if (exists (printf "/etc/nginx/vhost.d/%s_location" $host)) }}

include {{ printf "/etc/nginx/vhost.d/%s_location" $host}};

include /etc/nginx/vhost.d/default_location;

}

server {

server_name {{ $host }};

# server_name _;

listen 80 {{ $default_server }};

# listen 5000 {{ $default_server }};

listen [::]:80 {{ $default_server }};

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

# Only allow traffic from internal clients

include /etc/nginx/network_internal.conf;

include {{ printf "/etc/nginx/vhost.d/%s" $host }};

include /etc/nginx/vhost.d/default;

location / {

include uwsgi_params;

uwsgi_pass {{ trim $proto }}://{{ trim $upstream_name }};

root {{ trim $vhost_root }};

include fastcgi.conf;

fastcgi_pass {{ trim $upstream_name }};

proxy_pass {{ trim $proto }}://{{ trim $upstream_name }};

auth_basic "Restricted {{ $host }}";

auth_basic_user_file {{ (printf "/etc/nginx/htpasswd/%s" $host) }};

{{ if (exists (printf "/etc/nginx/vhost.d/%s_location" $host)) }}

include {{ printf "/etc/nginx/vhost.d/%s_location" $host}};

include /etc/nginx/vhost.d/default_location;

}

{{ 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 }};

listen [::]:443 ssl http2 {{ $default_server }};

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;

}

docker-compose.yml


version: '2'

services:
  # nginx proxy
  nginx:
    image: nginx
    container_name: nginx
    ports:
      - "8080:80"
    networks:
      - net
    volumes:
      - /etc/nginx/conf.d
      - ./logs/nginx/:/var/log/nginx/

  dockergen:
    image: jwilder/docker-gen
    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
    networks:
      - net
    volumes_from:
      - nginx
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl
    environment:
      - DEFAULT_HOST=app

  app:
    image: app
    environment:
      VIRTUAL_HOST: app
    networks:
      - net
    volumes:
      - "./storage:/opt"
    ports:
      - 5000
    tty: true


networks:
  net:
    driver: bridge

version: '2'

services:
  # nginx proxy
  nginx:
    image: nginx
    container_name: nginx
    ports:
      - "8080:80"
    networks:
      - net
    volumes:
      - /etc/nginx/conf.d
      - ./logs/nginx/:/var/log/nginx/

  dockergen:
    image: jwilder/docker-gen
    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
    networks:
      - net
    volumes_from:
      - nginx
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl
    environment:
      - DEFAULT_HOST=app

  app:
    image: app
    environment:
      VIRTUAL_HOST: app
    networks:
      - net
    volumes:
      - "./storage:/opt"
    ports:
      - 5000
    tty: true


networks:
  net:
    driver: bridge

version: '2'

services:

# nginx proxy

nginx:

image: nginx

container_name: nginx

ports:

- "8080:80"

networks:

- net

volumes:

- /etc/nginx/conf.d

- ./logs/nginx/:/var/log/nginx/

dockergen:

image: jwilder/docker-gen

command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf

networks:

- net

volumes_from:

- nginx

volumes:

- /var/run/docker.sock:/tmp/docker.sock:ro

- ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl

environment:

- DEFAULT_HOST=app

app:

image: app

environment:

VIRTUAL_HOST: app

networks:

- net

volumes:

- "./storage:/opt"

ports:

- 5000

tty: true

networks:

net:

driver: bridge

version: '2'

services:

# nginx proxy

nginx:

image: nginx

container_name: nginx

ports:

- "8080:80"

networks:

- net

volumes:

- /etc/nginx/conf.d

- ./logs/nginx/:/var/log/nginx/

dockergen:

image: jwilder/docker-gen

command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf

networks:

- net

volumes_from:

- nginx

volumes:

- /var/run/docker.sock:/tmp/docker.sock:ro

- ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl

environment:

- DEFAULT_HOST=app

app:

image: app

environment:

VIRTUAL_HOST: app

networks:

- net

volumes:

- "./storage:/opt"

ports:

- 5000

tty: true

networks:

net:

driver: bridge