global
    lua-prepend-path /usr/local/etc/haproxy/?/http.lua
    lua-load /usr/local/etc/haproxy/auth-request.lua
    log stdout format raw local0 debug

defaults
    default-server init-addr none
    mode http
    log global
    option forwardfor
    option httplog
    option httpchk
    http-check expect rstatus ^2

resolvers docker
    nameserver ip 127.0.0.11:53

frontend fe_api
    bind *:8081 ssl crt /usr/local/etc/haproxy/haproxy.pem

    stats enable
    stats uri /api
    stats refresh 10s
    stats admin if LOCALHOST

frontend fe_http
    bind *:8080 ssl crt /usr/local/etc/haproxy/haproxy.pem

    acl api-path path_beg -i /api
	acl devworkflow-path path -i -m end /devworkflow
    acl headers-path path -i -m end /headers
	acl jwks-path path -i -m end /jwks.json
	acl locales-path path_beg -i /locales
	acl wellknown-path path_beg -i /.well-known
    acl host-authelia-portal hdr(host) -i login.example.com:8080
    acl protected-frontends hdr(host) -m reg -i ^(?i)(admin|home|public|secure|singlefactor)\.example\.com

    http-request set-var(req.scheme) str(https) if { ssl_fc }
    http-request set-var(req.scheme) str(http) if !{ ssl_fc }
    http-request set-var(req.questionmark) str(?) if { query -m found }
    http-request set-var(req.method) str(CONNECT) if { method CONNECT }
    http-request set-var(req.method) str(GET) if { method GET }
    http-request set-var(req.method) str(HEAD) if { method HEAD }
    http-request set-var(req.method) str(OPTIONS) if { method OPTIONS }
    http-request set-var(req.method) str(POST) if { method POST }
    http-request set-var(req.method) str(TRACE) if { method TRACE }
    http-request set-var(req.method) str(PUT) if { method PUT }
    http-request set-var(req.method) str(PATCH) if { method PATCH }
    http-request set-var(req.method) str(DELETE) if { method DELETE }

    http-request set-header X-Real-IP %[src]
    http-request set-header X-Original-Method %[var(req.method)]
    http-request set-header X-Original-URL %[var(req.scheme)]://%[req.hdr(Host)]%[path]%[var(req.questionmark)]%[query]

    # be_auth_request is used to make HAProxy do the TLS termination since the Lua script
    # does not know how to handle it (see https://github.com/TimWolla/haproxy-auth-request/issues/12).
    http-request lua.auth-request be_auth_request /api/authz/auth-request if protected-frontends

    http-request redirect location https://login.example.com:8080/?rd=%[var(req.scheme)]://%[base]%[var(req.questionmark)]%[query]&rm=%[var(req.method)] if protected-frontends !{ var(txn.auth_response_successful) -m bool }

    use_backend be_authelia if host-authelia-portal api-path || devworkflow-path || jwks-path || locales-path || wellknown-path
    use_backend fe_authelia if host-authelia-portal !api-path
    use_backend be_httpbin if protected-frontends headers-path
    use_backend be_mail if { hdr(host) -i mail.example.com:8080 }
    use_backend be_protected if protected-frontends

backend be_auth_request
    server proxy 127.0.0.1:8085

listen be_auth_request_proxy
    bind 127.0.0.1:8085
    server authelia-backend authelia-backend:9091 resolvers docker ssl verify none

backend be_authelia
    server authelia-backend authelia-backend:9091 resolvers docker ssl verify none

backend fe_authelia
	option httpchk
	http-check expect rstatus ^2

    server authelia-frontend authelia-frontend:3000 check resolvers docker
    server authelia-backend authelia-backend:9091 check backup resolvers docker ssl verify none

backend be_httpbin
    ## Pass the special authorization response headers to the protected application.
    acl authorization_exist var(req.auth_response_header.authorization) -m found
    acl proxy_authorization_exist var(req.auth_response_header.proxy_authorization) -m found

    http-request set-header Authorization %[var(req.auth_response_header.authorization)] if authorization_exist
    http-request set-header Proxy-Authorization %[var(req.auth_response_header.proxy_authorization)] if proxy_authorization_exist

    ## Pass the special metadata response headers to the protected application.
    acl remote_user_exist var(req.auth_response_header.remote_user) -m found
    acl remote_groups_exist var(req.auth_response_header.remote_groups) -m found
    acl remote_name_exist var(req.auth_response_header.remote_name) -m found
    acl remote_email_exist var(req.auth_response_header.remote_email) -m found

    http-request set-header Remote-User %[var(req.auth_response_header.remote_user)] if remote_user_exist
    http-request set-header Remote-Groups %[var(req.auth_response_header.remote_groups)] if remote_groups_exist
    http-request set-header Remote-Name %[var(req.auth_response_header.remote_name)] if remote_name_exist
    http-request set-header Remote-Email %[var(req.auth_response_header.remote_email)] if remote_email_exist

    ## Pass the Set-Cookie response headers to the user.
    acl set_cookie_exist var(req.auth_response_header.set_cookie) -m found
    http-response set-header Set-Cookie %[var(req.auth_response_header.set_cookie)] if set_cookie_exist

    server httpbin-backend httpbin:8000 resolvers docker

backend be_mail
    server smtp-backend smtp:1080 resolvers docker

backend be_protected
    server nginx-backend nginx-backend:80 resolvers docker