Fabio/nginx-proxy-auto-docker
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This commit is contained in:
Constantin Wildförster 2020-02-04 18:37:57 +01:00
commit 55aab66949
2 changed files with 30 additions and 17 deletions
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4
README.md
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@ -92,6 +92,10 @@ If your container exposes multiple ports, nginx-proxy will default to the servic
If you need to support multiple virtual hosts for a container, you can separate each entry with commas. For example, `foo.bar.com,baz.bar.com,bar.com` and each host will be setup the same.
### Manually Specifying Upstream IP
In case you need to manually override the Upstream IP that Nginx will proxy to, you can declare a VIRTUAL_IP env var. If you do this, you also need to declare the VIRTUAL_PORT env variable as this switches the behaviour to a more "manual" declaration style. This is useful if one of your containers is in `network_mode: host` for instance.
### Wildcard Hosts
You can also use wildcards at the beginning and the end of host name, like `*.bar.com` or `foo.bar.*`. Or even a regular expression, which can be very useful in conjunction with a wildcard DNS service like [xip.io](http://xip.io), using `~^foo\.bar\..*\.xip\.io` will match `foo.bar.127.0.0.1.xip.io`, `foo.bar.10.0.2.2.xip.io` and all other given IPs. More information about this topic can be found in the nginx documentation about [`server_names`](http://nginx.org/en/docs/http/server_names.html).

43
nginx.tmpl
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@ -4,7 +4,10 @@
{{ $external_https_port := coalesce $.Env.HTTPS_PORT "443" }}
{{ define "upstream" }}
{{ if .Address }}
{{ if and .IP .Port }}
# {{ .Container.Name }} with manually set IP
server {{ .IP }}:{{ .Port }};
{{ else 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 }}
@ -22,7 +25,6 @@
server 127.0.0.1 down;
{{ end }}
{{ end }}
{{ end }}
{{ define "ssl_policy" }}
@ -177,24 +179,31 @@ server {
upstream {{ $container.Name }} {
{{ $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 and $container.Env.VIRTUAL_IP $container.Env.VIRTUAL_HOST }}
# Manually defined upstream host and port
{{ $IP := coalesce $container.Env.VIRTUAL_IP "127.0.0.1" }}
{{ $Port := coalesce $container.Env.VIRTUAL_PORT "80" }}
{{ template "upstream" (dict "Container" $container "Port" $Port "IP" $IP) }}
{{ else }}
{{ 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 */}}
{{/* 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 }}
{{ $port := coalesce $container.Env.VIRTUAL_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;
{{ end }}
{{ else }}
# Cannot connect to network of this container
server 127.0.0.1 down;
{{ end }}
{{ end }}
{{ end }}