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July 1, 2016 09:26
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Generate nginx-amplify compatible Nginx configuration with docker-gen.
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{{ $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 }} | |
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 Upgrade, set Connection to "upgrade"; otherwise, delete any | |
# Connection header that may have been passed to this server | |
map $http_upgrade $proxy_connection { | |
default upgrade; | |
'' close; | |
} | |
gzip_types text/plain text/css application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; | |
log_format vhost '$remote_addr - $remote_user [$time_local] "$request" ' | |
'$status $body_bytes_sent "$http_referer" ' | |
'"$http_user_agent" "$http_x_forwarded_for" ' | |
'rt=$request_time ua="$upstream_addr" ' | |
'us="$upstream_status" ut="$upstream_response_time" ' | |
'ul="$upstream_response_length" ' | |
'cs=$upstream_cache_status'; | |
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; | |
error_log /var/log/nginx/error.log warn; | |
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; | |
error_log /var/log/nginx/error.log warn; | |
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 }} | |
{{ range $knownNetwork := $CurrentContainer.Networks }} | |
{{ range $containerNetwork := $container.Networks }} | |
{{ if eq $knownNetwork.Name $containerNetwork.Name }} | |
## Can be connect 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 }} | |
{{ 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 := or (first (groupByKeys $containers "Env.VIRTUAL_PROTO")) "http" }} | |
{{/* 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 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 specified 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 {{ $default_server }}; | |
access_log /var/log/nginx/access.log vhost; | |
error_log /var/log/nginx/error.log warn; | |
return 301 https://$host$request_uri; | |
} | |
{{ end }} | |
server { | |
server_name {{ $host }}; | |
listen 443 ssl http2 {{ $default_server }}; | |
access_log /var/log/nginx/access.log vhost; | |
error_log /var/log/nginx/error.log warn; | |
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 }} | |
{{ 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 / { | |
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 (not $is_https) (eq $https_method "noredirect") }} | |
server { | |
server_name {{ $host }}; | |
listen 80 {{ $default_server }}; | |
access_log /var/log/nginx/access.log vhost; | |
error_log /var/log/nginx/error.log warn; | |
{{ 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 (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 }}; | |
access_log /var/log/nginx/access.log vhost; | |
error_log /var/log/nginx/error.log warn; | |
return 500; | |
ssl_certificate /etc/nginx/certs/default.crt; | |
ssl_certificate_key /etc/nginx/certs/default.key; | |
} | |
{{ end }} | |
{{ end }} | |
{{ end }} |
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