Merge pull request #192 from viranch/swarm-node
Use container host's IP:port if we're connected to a swarm master
This commit is contained in:
commit
2d0417692b
1 changed files with 23 additions and 21 deletions
44
nginx.tmpl
44
nginx.tmpl
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@ -1,3 +1,20 @@
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{{ define "upstream" }}
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{{ if .Address }}
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{{/* If we got the containers from swarm and this container's port is published to host, use host IP:PORT */}}
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{{ if and .Container.Node.ID .Address.HostPort }}
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# {{ .Container.Node.Name }}/{{ .Container.Name }}
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server {{ .Container.Node.Address.IP }}:{{ .Address.HostPort }};
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{{/* If there is no swarm node or the port is not published on host, use container's IP:PORT */}}
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{{ else }}
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# {{ .Container.Name }}
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server {{ .Address.IP }}:{{ .Address.Port }};
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{{ end }}
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{{ else }}
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# {{ .Container.Name }}
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server {{ .Container.IP }} down;
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{{ end }}
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{{ end }}
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# If we receive X-Forwarded-Proto, pass it through; otherwise, pass along the
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# scheme used to connect to this server
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map $http_x_forwarded_proto $proxy_x_forwarded_proto {
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@ -44,28 +61,13 @@ upstream {{ $host }} {
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{{ $addrLen := len $container.Addresses }}
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{{/* If only 1 port exposed, use that */}}
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{{ if eq $addrLen 1 }}
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{{ with $address := index $container.Addresses 0 }}
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# {{$container.Name}}
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server {{ $address.IP }}:{{ $address.Port }};
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{{ end }}
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{{/* If more than one port exposed, use the one matching VIRTUAL_PORT env var */}}
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{{ else if $container.Env.VIRTUAL_PORT }}
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{{ range $address := .Addresses }}
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{{ if eq $address.Port $container.Env.VIRTUAL_PORT }}
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# {{$container.Name}}
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server {{ $address.IP }}:{{ $address.Port }};
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{{ end }}
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{{ end }}
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{{/* Else default to standard web port 80 */}}
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{{ $address := index $container.Addresses 0 }}
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{{ template "upstream" (dict "Container" $container "Address" $address) }}
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{{/* If more than one port exposed, use the one matching VIRTUAL_PORT env var, falling back to standard web port 80 */}}
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{{ else }}
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{{ $address := where $container.Addresses "Port" "80" | first }}
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{{ if $address }}
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# {{$container.Name}}
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server {{ $address.IP }}:80;
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{{ else }}
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# {{$container.Name}}
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server {{ $container.IP }} down;
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{{ end }}
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{{ $port := coalesce $container.Env.VIRTUAL_PORT "80" }}
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{{ $address := where $container.Addresses "Port" $port | first }}
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{{ template "upstream" (dict "Container" $container "Address" $address) }}
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{{ end }}
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{{ end }}
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}
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