https - Does tomcat know that haproxy is a proxy server? -

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i have couple of questions in regards haproxy (1.5.2) , tomcat (7.0.54). both newbie in.

in tomcat have application on login (https://my.tomcat.host:8080/access) redirect user (via 303 code) web page (http://my.tomcat.host:8080/access/sessionid=1234567). setting haproxy set frontend engine (my-frontend-https) receive https requests , send them backend (my-backend-https) - in turn sends tomcat server http requests.

this haproxy.cfg (for my.haproxy.host) looks like:

frontend my-frontend-https    bind *:8443 ssl crt /my/certs/server.pem    mode http    option httplog    default_backend my-backend-https  backend my-backend-https   balance roundrobin   mode http   option httplog   option forwardfor   server my-tomcat-srv my.tomcat.host:8080 check

on sending following query (https://my.haproxy.host:8443/access) found location flag being returned tomcat of form: http://my.haproxy.host:80/access/sessionid=1234567. looking @ tomcat server found had enable remoteipvalve class in server.xml , set httpsserverport 8443 (as protocolheaderhttpsvalue - may not have needed bit though since it's default). seems work , add more servers backend.

so seems have couple of questions:

  1. i noticed problem doesn't seem exist when frontend engine http rather https. is, location field comes how expect be. ideas of discrepancy?
  2. without settings in server.xml file seem tomcat knows using proxy in between web browser , tomcat. how know this? there directive being passed tomcat tells proxy or simpler that.

  3. if want front-end/back-end engine in same haproxy.cfg file pointing same tomcat instance (i.e. lets says above load balancing across multiple servers including 1 , want entry point one) can done? i.e. haproxy have following lines in it. frontend my-frontend-https1 bind *:9443 ssl crt /my/certs/server.pem mode http option httplog default_backend my-backend-https1

    backend my-backend-https1 balance roundrobin mode http option httplog option forwardfor server my-tomcat-srv my.tomcat.host:8080 check

    would location field come http://my.haproxy.host:8443/access/sessionid=1234567 since defined in server.xml. thanks

harold.


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