Installation JDK in the LXC container - Host behind Proxy

Hello,

The host on which i work is a remote machine behind a proxy.
I have installed the jdk like that and it works well: (I access the remote machine via ssh)

   http_proxy=http://proxy:3128 && https_proxy=http://proxy:3128
     sudo apt-get install openjdk-7-jre-headless
     :~# java
            Usage: java [-options] class [args...]
           (to execute a class)
            or  java [-options] -jar jarfile [args...]
           (to execute a jar file)
           where options include:
           -d32      use a 32-bit data model if available
           -d64      use a 64-bit data model if available
           -server      to select the "server" VM
       

I'd like to install the JDK inside the container. I proceeded as follows:

ubuntu@worker:~$ http_proxy=http://proxy:3128 &&              
      https_proxy=http://proxy:3128
      ubuntu@worker:~$ sudo apt-get install openjdk-7-jre-headless
                       Reading package lists... Done
                       Building dependency tree      
                       Reading state information... Done
                       The following extra packages will be installed:
                       ca-certificates ca-certificates-java fontconfig-config fonts-
                       dejavu-core
                       java-common libasyncns0 libavahi-client3 libavahi-common-data
                       libavahi-common3 libcups2 libflac8 libfontconfig1 libfreetype6 
                       libglib2.0-0
                       libglib2.0-data libjpeg-turbo8 libjpeg8 liblcms2-2 libnspr4 
                       libnss3
                       libnss3-nssdb libogg0 libpcsclite1 libpulse0 libsndfile1  
                       libvorbis0a
                       libvorbisenc2 libxau6 libxcb1 libxdmcp6 libxml2 openssl sgml-base
                       shared-mime-info tzdata-java xml-core
                       ............................
                      Err Index of /ubuntu trusty/main java-common all 
                      0.51
                      Cannot initiate the connection to archive.ubuntu.com:80  
                     (2001:67c:13......). - connect (101: Network is unreachable)  
                      [IP: 2001:67c:13....... 80]

Have you an idea please ?

Thanks a lot.
Best Regards.

You might make a firewall hole just for this host as client to tcp to archive.ubuntu.com:80.

Or make a proxy for that host/port on the firewall:80, and alter DNS inside the firewall to resolve archive.ubuntu.com to that firewall.