Hello. I make things.
Lazy APT Management
In preparation for the Sekati Reboot I did a major infrastructure overhaul. Part of this involved rolling my own Xen dom0 on new, collocated hardware to host service separated para-virtualized domU server instances.
In the process of preparing the VPS‘s a new, linux based operating system was selected; specifically Debian (where historically OpenBSD was my flavor of choice) – this was done for it’s strong Xen support & superior (compared with the OpenBSD ports tree) package management system.
Of course what I’m referring to is APT & it’s wonderful management tools apt-get, dpkg & aptitude. Let me be clear in saying; these tools are ridiculously easy to use, have solid man pages & too many blog tutorials to mention.
The problem? Simply put: I’m lazy (the good lazy). And I want to do things in one simple terminal command. And I want to engineer mindless maintenance away via cron as much and as often as is safe or sane. In other words; I want a good control script that bundles & wraps all the apt-get love into short sweet commands & parallel-ssh execute them across all my virtual machines for day-to-day admin stuff.
So, of course, I wrote AptManager to fill this little lazy niche of mine. And now I’m sharing it with you; enjoy!
AptManager v1.2.3 [download]
#!/bin/sh
# Sekati: Apt Manager
# @author jason m horwitz | sekati.com
# Copyright (C) 2010 jason m horwitz, Sekat LLC. All Rights Reserved.
#
# CHANGELOG
# 1.2.0 - now compatible with Bash4
# 1.2.2 - adding maintenance
NAME="AptManager"
VERSION="1.2.3"
DEL="******************************************************"
printHeader() {
echo "\n$DEL\n$NAME v$VERSION\n$DEL\n"
}
printUsage() {
echo "Usage: $0 { \n\tupdate | upgrade | [maint|maintenance] | dselect-upgrade | dist-upgrade \n\tsetup | [find|search] | install | reinstall \n\t[remove,uninstall] | autoremove | clean | autoclean \n\trepair | reconfigure | [list|installed] | show | showpkg | depends |status \n\t} package_name\n"
}
# die [goodbye_message]
die() {
echo $@
exit 1
}
# confirm [question]
confirm() {
read -p "$1 (y/n) "
[ "$REPLY" == y ] || die "\n$NAME Exiting..."
}
# checkArg [argument_name, value]
checkArg() {
if test -z "$2"; then
die "Missing Argument: $1!\n"
fi
}
printHeader
case $1 in
update)
echo "Updating Package Database ...\n"
apt-get update
;;
upgrade)
echo "Upgrading All Installed Packages ...\n"
apt-get -u upgrade
;;
maint|maintenance)
echo "Updating, Upgrading & Cleaning ...\n"
apt-get update
apt-get -u upgrade
apt-get autoclean
apt-get autoremove
;;
dselect-upgrade)
echo "Upgrading All Installed Packages with DSelect ...\n"
apt-get -u dselect-upgrade
;;
dist-upgrade)
echo "Upgrading Distribution Packages ...\n"
apt-get -u dist-upgrade
;;
setup)
echo "Setup: Changing list of apt mirrors ...\n"
apt-setup
;;
search|find)
checkArg "Package Name" $2
echo "Searching for package: $2 ...\n"
apt-cache search $2
;;
install)
checkArg "Package Name" $2
echo "Attempting to install package: $2 ...\n"
apt-get install $2
;;
reinstall)
checkArg "Package Name" $2
echo "Attempting to Reinstall package: $2 ...\n"
apt-get --reinstall install $2
;;
remove|uninstall)
checkArg "Package Name" $2
echo "Attempting to Remove & Purge Package: $2 ...\n"
apt-get --purge remove $2
;;
autoremove)
echo "Auto-Removing Unused Packages ...\n"
apt-get autoremove
;;
clean)
echo "Cleaning ...\n"
apt-get clean
;;
autoclean)
echo "Auto-Cleaning ...\n"
apt-get autoclean
;;
repair|fix)
confirm "Are you sure you want to attempt to fix/repair the apt package error?\nThis will run the commands: `apt-get -f install && dpkg --configure -a`"
apt-get -f install
dpkg --configure -a
;;
reconfigure)
checkArg "Package Name" $2
confirm "Are you sure you want to reconfigure $2?"
dpkg --reconfigure $2
;;
list|installed)
echo "Listing Installed & Removed Packages ...\n"
dpkg -l
;;
show)
checkArg "Package Name" $2
echo "Showing Package Info ...\n"
apt-cache show $2
;;
showpkg)
checkArg "Package Name" $2
echo "Showing Package ...\n"
apt-cache showpkg $2
;;
depends)
checkArg "Package Name" $2
echo "Showing Package Dependencies ...\n"
apt-cache depends $2
;;
status)
checkArg "Package Name" $2
echo "Showing package status: $2 ...\n"
dpkg -l $2
;;
*|?)
printUsage
exit 1
;;
esac
exit 0
—
