Replacing apt-proxy with apt-cacher-ng

Howto replace APT-Proxy with APT-cacher-ng

Goal change to APT cacher-ng from APT-Proxy without changes on the client side.

Tested with apt-cacher-ng 0.4

Installation and configuration¶

1. Install

   apt-get install apt-cacher-ng
   

2. Do the following changes to /etc/apt-cacher-ng/acng.conf

   @@ -9,7 +9,7 @@
   
   # TCP (http) port
   # Set to 9999 to emulate apt-proxy
   -Port:3142
   +Port:9999
   
   # Addresses to bind/listen on. Multiple addresses must be separated by spaces.
   # DNS resolution is performed. If multiple protocols are available for a
   @@ -27,6 +27,11 @@
   Remap-debrep: file:deb_mirror*.gz /debian ; file:backends_debian
   Remap-uburep: file:ubuntu_mirrors /ubuntu ; file:backends_ubuntu
   Remap-debvol: file:debvol_mirror*.gz /debian-volatile ; file:backends_debvol
   +Remap-debsec: file:deb_sec_mirrors /debian-security ; file:backends_debian_sec
   +Remap-ubusec: file:ubuntu_sec_mirrors /ubuntu-security ; file:backends_ubuntu_sec
   +# Ubuntu nx ppa
   +Remap-ubunx: file:ubuntu_nx_mirrors /ubuntu-nx ; file:backends_ubuntu_nx
   +
   
   # Virtual page accessible in a web browser to see statistics and status
   # information, i.e. under http://localhost:3142/acng-report.html
   @@ -57,7 +62,7 @@
   # offlinemode:0
   
   # Forbid all downloads that don't run through preconfigured backends (.where)
   -#ForceManaged: 0
   +ForceManaged: 1
   
   # Days before considering an unreferenced file expired (to be deleted).
   # Warning: if the value is set too low and particular index files are not
   

3. Create backend config files (replace with you local mirrors) in /etc/apt-cacher-ng

   backends_debian

   http://ftp.se.debian.org/debian
   

   backends_debian_sec

   http://security.debian.org/
   

   backends_debvol

   http://volatile.debian.org/debian-volatile
   

   backends_ubuntu

   http://se.archive.ubuntu.com/ubuntu/
   

   backends_ubuntu_nx

   http://ppa.launchpad.net/freenx-team/ppa/ubuntu
   

   backends_ubuntu_sec

   http://security.ubuntu.com/ubuntu
   

4. Create (extra) needed mirror files in /etc/apt-cacher-ng

   cp backends_debian_sec deb_sec_mirrors 
   cp backends_ubuntu_sec ubuntu_sec_mirrors
   cp backends_ubuntu_nx ubuntu_nx_mirrors
   

5. Configure a AdminAuth in /etc/apt-cacher-ng/security.conf

6. Done, now you can (re-)start apt-cacher-ng

Data migration (optional)¶

When you are sure that you different clients can update via apt-cacher-ng instead of apt-proxy you are also set for data migration.

Note: You will at least have to test updates from all different versions of dists that you are running (e.g. etch + lenny & dapper + hardy) otherwise you will not have index files available for a successful migration.

1. Create (hard)links for debs and tar.gz from apt-proxy to a temporary import directory (you can not use apt-proxy after this step, due to the permissions change)

   mkdir /var/cache/apt-cacher-ng/_import
   find /var/cache/apt-proxy/ -name "*.deb" -o -name "*.tar.gz" | xargs -I '{}' ln '{}' /var/cache/apt-cacher-ng/_import
   chown -R apt-cacher-ng:apt-cacher-ng /var/cache/apt-cacher-ng/_import
   

2. Point your web browser to your apt-proxy e.g. http://aptproxy:9999 and select the report page

3. Click "Start import"

4. De-install and purge apt-proxy

   apt-get remove apt-proxy --purge
   

5. Remove the apt-proxy cache (rm -r /var/cache/apt-proxy/) and /var/cache/apt-cacher-ng/_import