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Merge pull request #1667 from pini-gh/pini-1609

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Use `server 127.0.0.1 down` entry only when required
This commit is contained in:
Nicolas Duchon
2021-06-20 18:04:19 +02:00
committed by GitHub
parent 54347a9787 7c0a4cb0b3
commit 2006968c05
6 changed files with 75 additions and 32 deletions
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63
nginx.tmpl
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@ -4,28 +4,6 @@
{{ $external_https_port := coalesce $.Env.HTTPS_PORT "443" }}
{{ $debug_all := $.Env.DEBUG }}
{{ 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 }}:{{ .VirtualPort }};
{{ else }}
# /!\ No IP for this network!
{{ end }}
{{ end }}
{{ end }}
{{ define "ssl_policy" }}
{{ if eq .ssl_policy "Mozilla-Modern" }}
ssl_protocols TLSv1.3;
@ -185,29 +163,52 @@ upstream {{ $upstream_name }} {
{{ $debug := (eq (coalesce $container.Env.DEBUG $debug_all "false") "true") }}
{{/* If only 1 port exposed, use that as a default, else 80 */}}
{{ $defaultPort := (when (eq (len $container.Addresses) 1) (first $container.Addresses) (dict "Port" "80")).Port }}
{{ $port := (coalesce $container.Env.VIRTUAL_PORT $defaultPort) }}
{{ $address := where $container.Addresses "Port" $port | first }}
{{ if $debug }}
# Exposed ports: {{ $container.Addresses }}
# Default virtual port: {{ $defaultPort }}
# VIRTUAL_PORT: {{ $container.Env.VIRTUAL_PORT }}
{{ if not $address }}
# /!\ Virtual port not exposed
{{ end }}
{{ end }}
{{ $server_found := "false" }}
{{ 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
{{ $port := (coalesce $container.Env.VIRTUAL_PORT $defaultPort) }}
{{ $address := where $container.Addresses "Port" $port | first }}
{{ if $debug }}
# Exposed ports: {{ $container.Addresses }}
# Default virtual port: {{ $defaultPort }}
# VIRTUAL_PORT: {{ $container.Env.VIRTUAL_PORT }}
{{ if not $address }}
# /!\ Virtual port not exposed
{{ 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 }}
{{ $server_found = "true" }}
# {{ $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 $containerNetwork }}
{{ $server_found = "true" }}
# {{ $container.Name }}
server {{ $containerNetwork.IP }}:{{ $address.Port }};
{{ end }}
{{ else if $containerNetwork }}
# {{ $container.Name }}
{{ if $containerNetwork.IP }}
{{ $server_found = "true" }}
server {{ $containerNetwork.IP }}:{{ $port }};
{{ else }}
# /!\ No IP for this network!
{{ end }}
{{ end }}
{{ template "upstream" (dict "Container" $container "Address" $address "Network" $containerNetwork "VirtualPort" $port) }}
{{ else }}
# Cannot connect to network '{{ $containerNetwork.Name }}' of this container
{{ end }}
{{ end }}
{{ end }}
{{/* nginx-proxy/nginx-proxy#1105 */}}
{{ if (eq $server_found "false") }}
# Fallback entry
server 127.0.0.1 down;
{{ end }}
{{ end }}
}