{{/* default nginx configuration template */}} {{/* Generate a configuration file based on the containers mandatory */}} {{/* VIRTUAL_HOST environment variable and the exposed ports. If multiple */}} {{/* ports are exposed, the first one is used, unless set with VIRTUAL_PORT */}} server { listen 80 default_server; server_name _; # This is just an invalid value which will never trigger on a real hostname. error_log /proc/self/fd/2; access_log /proc/self/fd/1; return 503; } {{ range $host, $containers := groupByMulti $ "Env.VIRTUAL_HOST" "," }} upstream {{ $host }} { {{ range $index, $value := $containers }} {{ $addrLen := len $value.Addresses }} {{ $network := index $value.Networks 0 }} {{ if $value.State.Health.Status }} {{ if ne $value.State.Health.Status "healthy" }} {{ continue }} {{ end }} {{ end }} {{/* If only 1 port exposed, use that */}} {{ if eq $addrLen 1 }} {{ with $address := index $value.Addresses 0 }} # {{$value.Name}} server {{ $network.IP }}:{{ $address.Port }}; {{ end }} {{/* If more than one port exposed, use the one matching VIRTUAL_PORT env var */}} {{ else if $value.Env.VIRTUAL_PORT }} {{ range $i, $address := $value.Addresses }} {{ if eq $address.Port $value.Env.VIRTUAL_PORT }} # {{$value.Name}} server {{ $network.IP }}:{{ $address.Port }}; {{ end }} {{ end }} {{/* Else default to standard web port 80 */}} {{ else }} {{ range $i, $address := $value.Addresses }} {{ if eq $address.Port "80" }} # {{$value.Name}} server {{ $network.IP }}:{{ $address.Port }}; {{ end }} {{ end }} {{ end }} {{ end }} } server { gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; server_name {{ $host }}; proxy_buffering off; error_log /proc/self/fd/2; access_log /proc/self/fd/1; location / { proxy_pass http://{{ trim $host }}; proxy_set_header Host $http_host; 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 $scheme; # HTTP 1.1 support proxy_http_version 1.1; proxy_set_header Connection ""; } } {{ end }}