Package Proxy Cache
If you want to install the same Arch packages over and over - like for testing AIF profiles - it could help if you wouldn't have to get the packages every time from the internet. This article shows you how to setup a Squid proxy that only caches arch packages and can be used with aif/pacman/wget/etc with minimal configuration on the client system.
Contents
Install Squid
# pacman -S squid
Configure Squid
This is the minimum configuration to get squid cache arch packages.
Cache Rules
Before defining these rules, remove/comment (if you do not need them) all the default refresh_patterns
/etc/squid/squid.conf
refresh_pattern \.pkg\.tar\. 0 20% 4320 reload-into-ims refresh_pattern . 0 0% 0
That should define that *.pkg.tar.* gets cached, and anything else should not.
Maximum Filesize
Objects larger than this size will NOT be saved on disk:
/etc/squid/squid.conf
maximum_object_size 256 MB
Cache Directory
Set the cache dir and its maximum size and subdirs:
/etc/squid/squid.conf
cache_dir aufs /var/cache/squid 10000 16 256
Shutdown Lifetime
Time to wait until all active client sockets are closed:
/etc/squid/squid.conf
shutdown_lifetime 1 seconds
Start Squid
# systemctl start squid.service
or if squid is already running:
# systemctl restart squid.service
Follow Squid access log
To see the access to squid:
# tail -f /var/log/squid/access.log
You should see this for packages that are directed to original host:
...TCP_MISS/200...DIRECT...
and for packages that are delivered from the cache:
...TCP_HIT/200...NONE...
Manual Arch Install
Before running /arch/setup, add variables for your proxy. To do so, run on the console:
# export http_proxy='http://your_squid_machine_ip:3128'
# export ftp_proxy='ftp://your_squid_machine_ip:3128'
Now just use /arch/setup to normally install the system, and it should use your proxy. Watch the squid logs to verify this.
Automatic Arch Install
After login in the arch install image, setup your network (eg. `dhcpcd eth0`) and get this AIF profile on it.
custom.aifprofile
export ftp_proxy='ftp://your_squid_machine_ip:3128' export http_proxy='http://your_squid_machine_ip:3128' SOURCE=net FILE_URL='http://mirrors.kernel.org/archlinux/$repo/os/i686' SYNC_URL='http://mirrors.kernel.org/archlinux/$repo/os/i686' HARDWARECLOCK=localtime TIMEZONE=Europe/Berlin RUNTIME_REPOSITORIES= RUNTIME_PACKAGES= TARGET_GROUPS=base TARGET_PACKAGES_EXCLUDE= #TARGET_PACKAGES='xorg gnome ttf-dejavu' worker_configure_system () { prefill_configs echo "export http_proxy=$http_proxy" >> /mnt/etc/profile.d/proxy.sh echo "export ftp_proxy=$ftp_proxy" >> /mnt/etc/profile.d/proxy.sh chmod +x /mnt/etc/profile.d/proxy.sh sed -i 's/^HOSTNAME="myhost"/HOSTNAME="foohost"/' $var_TARGET_DIR/etc/rc.conf } GRUB_DEVICE=/dev/sda PARTITIONS='/dev/sda *:ext4' BLOCKDATA='/dev/sda1 raw no_label ext4;yes;/;target;no_opts;no_label;no_params'
And install the system according to that profile:
# aif -p automatic -c custom.aifprofile
Now sit back, and enjoy the automation :)
After the setup is done, the installed system should use your proxy for pacman/wget/etc.