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haproxy.tmpl
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/
haproxy.tmpl
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{{ $CurrentContainer := where $ "ID" .Docker.CurrentContainerID | first }}
defaults
log stdout format raw local0
log global
mode http
balance first
timeout connect 3000ms
timeout client 5m
timeout server 5m
option httplog
option redispatch
maxconn 5000
retries 3
frontend stats
bind *:9000
stats enable
stats hide-version
stats uri /
{{ $env := .Env }}
{{ $sortedServices := sortObjectsByKeysDesc $ ".Labels.haproxy_priority" }}
{{ $servicesByLabel := groupByLabel $ "com.docker.compose.service" }}
frontend proxy
bind *:80
bind *:443 ssl crt /var/ssl/
http-request set-header X-Forwarded-Proto https if { ssl_fc }
{{ range $sortedServices }}
{{ with $acls := index .Labels "haproxy_acls" }}
{{ $acls }}
{{ end }}
{{ end }}
{{ $default := index $env "default_backend" }}
{{ if $default }}
{{ with index $servicesByLabel $default }}
default_backend {{ $default }}
{{ end }}
{{ end }}
{{ range $c := $sortedServices }}
{{ $service := index $c.Labels "com.docker.compose.service" }}
{{ if not (or (index $c.Labels "haproxy_acls") (eq $service $default)) }}{{ continue }}{{ end }}
{{ $port := (or (index $c.Labels "haproxy_port") (first $c.Addresses).Port) }}
{{ range $knownNetwork := $CurrentContainer.Networks }}
{{ range $containerNetwork := $c.Networks }}
{{ if eq $knownNetwork.Name $containerNetwork.Name }}
backend {{ $service }}
{{ index $c.Labels "haproxy_backend_config" }}
server {{ $service }}_docker {{ $containerNetwork.IP }}:{{ $port }} check
{{ break }}
{{ end }}
{{ end }}
{{ end }}
{{ end }}