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authorvarac <varacanero@zeromail.org>2015-04-29 14:24:11 +0200
committervarac <varacanero@zeromail.org>2015-04-29 14:24:11 +0200
commitd3bfd57f39246cd41688b9256f262b6efdddfbf4 (patch)
tree23849b11ccb3af3244f549b07be3ec337dc0df9b
parentfdd0c448125173a69582a59e4a969f4dabcb52e7 (diff)
added definitions/jessie based on templates/Debian-8.0-amd64-netboot
-rw-r--r--definitions/jessie/base.sh25
-rw-r--r--definitions/jessie/chef.sh49
-rw-r--r--definitions/jessie/cleanup.sh18
-rw-r--r--definitions/jessie/definition.rb52
-rw-r--r--definitions/jessie/preseed.cfg313
-rw-r--r--definitions/jessie/puppet.sh7
-rw-r--r--definitions/jessie/ruby.sh10
-rw-r--r--definitions/jessie/vagrant.sh21
-rw-r--r--definitions/jessie/virtualbox.sh37
-rw-r--r--definitions/jessie/vmfusion.sh7
-rw-r--r--definitions/jessie/zerodisk.sh3
11 files changed, 542 insertions, 0 deletions
diff --git a/definitions/jessie/base.sh b/definitions/jessie/base.sh
new file mode 100644
index 0000000..e3642f1
--- /dev/null
+++ b/definitions/jessie/base.sh
@@ -0,0 +1,25 @@
+# Update the box
+apt-get -y update
+apt-get -y install linux-headers-$(uname -r) build-essential
+apt-get -y install zlib1g-dev libssl-dev libreadline-gplv2-dev
+apt-get -y install curl unzip
+
+# Set up sudo
+echo 'vagrant ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/vagrant
+
+# Tweak sshd to prevent DNS resolution (speed up logins)
+echo 'UseDNS no' >> /etc/ssh/sshd_config
+
+# Remove 5s grub timeout to speed up booting
+cat <<EOF > /etc/default/grub
+# If you change this file, run 'update-grub' afterwards to update
+# /boot/grub/grub.cfg.
+
+GRUB_DEFAULT=0
+GRUB_TIMEOUT=0
+GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
+GRUB_CMDLINE_LINUX_DEFAULT="quiet"
+GRUB_CMDLINE_LINUX="debian-installer=en_US"
+EOF
+
+update-grub
diff --git a/definitions/jessie/chef.sh b/definitions/jessie/chef.sh
new file mode 100644
index 0000000..cd11958
--- /dev/null
+++ b/definitions/jessie/chef.sh
@@ -0,0 +1,49 @@
+if [ -f .veewee_params ]
+then
+ . .veewee_params
+fi
+
+# Default to Gem install
+if [ -z "$CHEF_INSTALLMETHOD" ]; then
+ export CHEF_INSTALLMETHOD="gems"
+fi
+
+# Installing chef
+case $CHEF_INSTALLMETHOD in
+ "gems")
+ # Using gems
+ if [ -z "$CHEF_VERSION" ]; then
+ # Default to latest
+ gem install chef --no-ri --no-rdoc
+ else
+ gem install chef --no-ri --no-rdoc --version $CHEF_VERSION
+ fi
+ ;;
+
+ "omnibus")
+ # Using omnibus
+ if [ -z "$CHEF_VERSION" ]; then
+ # Default to latest
+ wget -O - http://opscode.com/chef/install.sh | sudo bash -s
+ else
+ wget -O - http://opscode.com/chef/install.sh | sudo bash -s -- -v $CHEF_VERSION
+ fi
+ ;;
+
+ "package")
+ # Using packages
+ apt-get install -y debconf-utils
+ echo "chef chef/chef_server_url string $CHEF_SERVER_URL" | debconf-set-selections
+ if [ -z "$CHEF_VERSION" ]; then
+ # Default to latest
+ apt-get install -y chef
+ else
+ apt-get install -y chef=$CHEF_VERSION
+ fi
+ ;;
+
+ *)
+ echo "Unsupported method for installing chef"
+ exit -1
+ ;;
+esac
diff --git a/definitions/jessie/cleanup.sh b/definitions/jessie/cleanup.sh
new file mode 100644
index 0000000..f6953e1
--- /dev/null
+++ b/definitions/jessie/cleanup.sh
@@ -0,0 +1,18 @@
+# Clean up
+apt-get -y remove linux-headers-$(uname -r) build-essential
+apt-get -y autoremove
+apt-get -y clean
+
+# Removing leftover leases and persistent rules
+echo "cleaning up dhcp leases"
+rm /var/lib/dhcp/*
+
+# Make sure Udev doesn't block our network
+echo "cleaning up udev rules"
+rm /etc/udev/rules.d/70-persistent-net.rules
+mkdir /etc/udev/rules.d/70-persistent-net.rules
+rm -rf /dev/.udev/
+rm /lib/udev/rules.d/75-persistent-net-generator.rules
+
+echo "Adding a 2 sec delay to the interface up, to make the dhclient happy"
+echo "pre-up sleep 2" >> /etc/network/interfaces
diff --git a/definitions/jessie/definition.rb b/definitions/jessie/definition.rb
new file mode 100644
index 0000000..0dd044c
--- /dev/null
+++ b/definitions/jessie/definition.rb
@@ -0,0 +1,52 @@
+#Thanks to Fletcher Nichol - https://github.com/fnichol
+
+Veewee::Definition.declare({
+ :cpu_count => '1',
+ :memory_size=> '256',
+ :disk_size => '10140', :disk_format => 'VDI', :hostiocache => 'off',
+ :os_type_id => 'Debian_64',
+ :iso_file => "debian-8.0.0-amd64-netinst.iso",
+ :iso_src => "http://cdimage.debian.org/debian-cd/8.0.0/amd64/iso-cd/debian-8.0.0-amd64-netinst.iso",
+ :iso_md5 => "d9209f355449fe13db3963571b1f52d4",
+ :iso_download_timeout => "1000",
+ :boot_wait => "10", :boot_cmd_sequence => [
+ '<Esc>',
+ 'install ',
+ 'preseed/url=http://%IP%:%PORT%/preseed.cfg ',
+ 'debian-installer=en_US ',
+ 'auto ',
+ 'locale=en_US ',
+ 'kbd-chooser/method=us ',
+ 'netcfg/get_hostname=%NAME% ',
+ 'netcfg/get_domain=vagrantup.com ',
+ 'fb=false ',
+ 'debconf/frontend=noninteractive ',
+ 'console-setup/ask_detect=false ',
+ 'console-keymaps-at/keymap=us ',
+ 'keyboard-configuration/xkb-keymap=us ',
+ '<Enter>'
+ ],
+ :kickstart_port => "7122",
+ :kickstart_timeout => "300",
+ :kickstart_file => "preseed.cfg",
+ :ssh_login_timeout => "10000",
+ :ssh_user => "vagrant",
+ :ssh_password => "vagrant",
+ :ssh_key => "",
+ :ssh_host_port => "7222",
+ :ssh_guest_port => "22",
+ :sudo_cmd => "echo '%p'|sudo -S bash '%f'",
+ :shutdown_cmd => "halt -p",
+ :postinstall_files => [
+ "base.sh",
+ "vagrant.sh",
+ "virtualbox.sh",
+ #"vmfusion.sh",
+ "ruby.sh",
+ "puppet.sh",
+ "chef.sh",
+ "cleanup.sh",
+ "zerodisk.sh"
+ ],
+ :postinstall_timeout => "10000"
+})
diff --git a/definitions/jessie/preseed.cfg b/definitions/jessie/preseed.cfg
new file mode 100644
index 0000000..a0613c7
--- /dev/null
+++ b/definitions/jessie/preseed.cfg
@@ -0,0 +1,313 @@
+#### Contents of the preconfiguration file (for jessie)
+### Localization
+# Locale sets language and country.
+d-i debian-installer/locale string en_US.UTF-8
+
+# Keyboard selection.
+#d-i keymap select us
+d-i keyboard-configuration/xkb-keymap select us
+
+### Network configuration
+# netcfg will choose an interface that has link if possible. This makes it
+# skip displaying a list if there is more than one interface.
+d-i netcfg/choose_interface select auto
+
+# To pick a particular interface instead:
+#d-i netcfg/choose_interface select eth1
+
+# If you have a slow dhcp server and the installer times out waiting for
+# it, this might be useful.
+#d-i netcfg/dhcp_timeout string 60
+
+# If you prefer to configure the network manually, uncomment this line and
+# the static network configuration below.
+#d-i netcfg/disable_dhcp boolean true
+
+# If you want the preconfiguration file to work on systems both with and
+# without a dhcp server, uncomment these lines and the static network
+# configuration below.
+#d-i netcfg/dhcp_failed note
+#d-i netcfg/dhcp_options select Configure network manually
+
+# Static network configuration.
+#d-i netcfg/get_nameservers string 192.168.1.1
+#d-i netcfg/get_ipaddress string 192.168.1.42
+#d-i netcfg/get_netmask string 255.255.255.0
+#d-i netcfg/get_gateway string 192.168.1.1
+#d-i netcfg/confirm_static boolean true
+
+# Any hostname and domain names assigned from dhcp take precedence over
+# values set here. However, setting the values still prevents the questions
+# from being shown, even if values come from dhcp.
+#d-i netcfg/get_hostname string vagrant
+d-i netcfg/get_domain string vagrantup.com
+
+# Disable that annoying WEP key dialog.
+d-i netcfg/wireless_wep string
+# The wacky dhcp hostname that some ISPs use as a password of sorts.
+#d-i netcfg/dhcp_hostname string radish
+
+# If non-free firmware is needed for the network or other hardware, you can
+# configure the installer to always try to load it, without prompting. Or
+# change to false to disable asking.
+#d-i hw-detect/load_firmware boolean true
+
+### Network console
+# Use the following settings if you wish to make use of the network-console
+# component for remote installation over SSH. This only makes sense if you
+# intend to perform the remainder of the installation manually.
+#d-i anna/choose_modules string network-console
+#d-i network-console/password password r00tme
+#d-i network-console/password-again password r00tme
+
+### Mirror settings
+# If you select ftp, the mirror/country string does not need to be set.
+#d-i mirror/protocol string ftp
+d-i mirror/country string manual
+d-i mirror/http/hostname string http.debian.net
+d-i mirror/http/directory string /debian
+d-i mirror/http/proxy string
+
+# Suite to install.
+#d-i mirror/suite string testing
+# Suite to use for loading installer components (optional).
+#d-i mirror/udeb/suite string testing
+
+### Clock and time zone setup
+# Controls whether or not the hardware clock is set to UTC.
+d-i clock-setup/utc boolean true
+
+# You may set this to any valid setting for $TZ; see the contents of
+# /usr/share/zoneinfo/ for valid values.
+d-i time/zone string UTC
+
+# Controls whether to use NTP to set the clock during the install
+d-i clock-setup/ntp boolean true
+# NTP server to use. The default is almost always fine here.
+#d-i clock-setup/ntp-server string ntp.example.com
+
+### Partitioning
+# If the system has free space you can choose to only partition that space.
+#d-i partman-auto/init_automatically_partition select biggest_free
+
+# Alternatively, you can specify a disk to partition. The device name must
+# be given in traditional non-devfs format.
+# Note: A disk must be specified, unless the system has only one disk.
+# For example, to use the first SCSI/SATA hard disk:
+#d-i partman-auto/disk string /dev/sda
+# In addition, you'll need to specify the method to use.
+# The presently available methods are: "regular", "lvm" and "crypto"
+d-i partman-auto/method string lvm
+
+# If one of the disks that are going to be automatically partitioned
+# contains an old LVM configuration, the user will normally receive a
+# warning. This can be preseeded away...
+d-i partman-lvm/device_remove_lvm boolean true
+# The same applies to pre-existing software RAID array:
+d-i partman-md/device_remove_md boolean true
+
+# And the same goes for the confirmation to write the lvm partitions.
+d-i partman-lvm/confirm boolean true
+d-i partman-lvm/confirm_nooverwrite boolean true
+
+
+d-i partman/choose_partition select finish
+d-i partman-auto-lvm/guided_size string max
+
+# You can choose one of the three predefined partitioning recipes:
+# - atomic: all files in one partition
+# - home: separate /home partition
+# - multi: separate /home, /usr, /var, and /tmp partitions
+d-i partman-auto/choose_recipe select atomic
+d-i partman/default_filesystem string ext3
+
+# Or provide a recipe of your own...
+# The recipe format is documented in the file devel/partman-auto-recipe.txt.
+# If you have a way to get a recipe file into the d-i environment, you can
+# just point at it.
+#d-i partman-auto/expert_recipe_file string /hd-media/recipe
+
+# If not, you can put an entire recipe into the preconfiguration file in one
+# (logical) line. This example creates a small /boot partition, suitable
+# swap, and uses the rest of the space for the root partition:
+#d-i partman-auto/expert_recipe string \
+# boot-root :: \
+# 40 50 100 ext3 \
+# $primary{ } $bootable{ } \
+# method{ format } format{ } \
+# use_filesystem{ } filesystem{ ext3 } \
+# mountpoint{ /boot } \
+# . \
+# 500 10000 1000000000 ext3 \
+# method{ format } format{ } \
+# use_filesystem{ } filesystem{ ext3 } \
+# mountpoint{ / } \
+# . \
+# 64 512 300% linux-swap \
+# method{ swap } format{ } \
+# .
+
+#The preseed line that "selects finish" needs to be in a certain order in your preseed, the example-preseed does not follow this.
+#http://ubuntuforums.org/archive/index.php/t-1504045.html
+
+# This makes partman automatically partition without confirmation, provided
+# that you told it what to do using one of the methods above.
+d-i partman/confirm_write_new_label boolean true
+d-i partman/confirm boolean true
+d-i partman/confirm_nooverwrite boolean true
+
+
+### Base system installation
+# Select the initramfs generator used to generate the initrd for 2.6 kernels.
+#d-i base-installer/kernel/linux/initramfs-generators string yaird
+
+# The kernel image (meta) package to be installed; "none" can be used if no
+# kernel is to be installed.
+#d-i base-installer/kernel/image string linux-image-2.6-486
+
+### Account setup
+# Skip creation of a root account (normal user account will be able to
+# use sudo).
+d-i passwd/root-login boolean false
+# Alternatively, to skip creation of a normal user account.
+#d-i passwd/make-user boolean false
+
+# Root password, either in clear text
+d-i passwd/root-password password vagrant
+d-i passwd/root-password-again password vagrant
+# or encrypted using an MD5 hash.
+#d-i passwd/root-password-crypted password [MD5 hash]
+
+# To create a normal user account.
+d-i passwd/user-fullname string Vagrant User
+d-i passwd/username string vagrant
+# Normal user's password, either in clear text
+d-i passwd/user-password password vagrant
+d-i passwd/user-password-again password vagrant
+# or encrypted using an MD5 hash.
+#d-i passwd/user-password-crypted password [MD5 hash]
+# Create the first user with the specified UID instead of the default.
+#d-i passwd/user-uid string 1010
+d-i user-setup/encrypt-home boolean false
+d-i user-setup/allow-password-weak boolean true
+
+# The user account will be added to some standard initial groups. To
+# override that, use this.
+d-i passwd/user-default-groups string audio cdrom video admin
+
+### Apt setup
+# You can choose to install non-free and contrib software.
+#d-i apt-setup/non-free boolean true
+#d-i apt-setup/contrib boolean true
+# Uncomment this if you don't want to use a network mirror.
+#d-i apt-setup/use_mirror boolean false
+# Select which update services to use; define the mirrors to be used.
+# Values shown below are the normal defaults.
+#d-i apt-setup/services-select multiselect security, volatile
+#d-i apt-setup/security_host string security.debian.org
+#d-i apt-setup/volatile_host string volatile.debian.org
+
+
+# By default the installer requires that repositories be authenticated
+# using a known gpg key. This setting can be used to disable that
+# authentication. Warning: Insecure, not recommended.
+#d-i debian-installer/allow_unauthenticated string true
+
+### Package selection
+tasksel tasksel/first multiselect standard
+# If the desktop task is selected, install the kde and xfce desktops
+# instead of the default gnome desktop.
+#tasksel tasksel/desktop multiselect kde, xfce
+
+# Individual additional packages to install
+d-i pkgsel/include string openssh-server ntp acpid sudo bzip2 rsync
+
+# Whether to upgrade packages after debootstrap.
+# Allowed values: none, safe-upgrade, full-upgrade
+d-i pkgsel/upgrade select none
+
+# Some versions of the installer can report back on what software you have
+# installed, and what software you use. The default is not to report back,
+# but sending reports helps the project determine what software is most
+# popular and include it on CDs.
+popularity-contest popularity-contest/participate boolean false
+
+### Boot loader installation
+# Grub is the default boot loader (for x86). If you want lilo installed
+# instead, uncomment this:
+#d-i grub-installer/skip boolean true
+# To also skip installing lilo, and install no bootloader, uncomment this
+# too:
+#d-i lilo-installer/skip boolean true
+
+# This is fairly safe to set, it makes grub install automatically to the MBR
+# if no other operating system is detected on the machine.
+d-i grub-installer/only_debian boolean true
+
+# This one makes grub-installer install to the MBR if it also finds some other
+# OS, which is less safe as it might not be able to boot that other OS.
+d-i grub-installer/with_other_os boolean true
+
+# Alternatively, if you want to install to a location other than the mbr,
+# uncomment and edit these lines:
+#d-i grub-installer/only_debian boolean false
+#d-i grub-installer/with_other_os boolean false
+#d-i grub-installer/bootdev string (hd0,0)
+# To install grub to multiple disks:
+#d-i grub-installer/bootdev string (hd0,0) (hd1,0) (hd2,0)
+
+# Optional password for grub, either in clear text
+#d-i grub-installer/password password r00tme
+#d-i grub-installer/password-again password r00tme
+# or encrypted using an MD5 hash, see grub-md5-crypt(8).
+#d-i grub-installer/password-crypted password [MD5 hash]
+
+### Finishing up the installation
+# During installations from serial console, the regular virtual consoles
+# (VT1-VT6) are normally disabled in /etc/inittab. Uncomment the next
+# line to prevent this.
+#d-i finish-install/keep-consoles boolean true
+
+# Avoid that last message about the install being complete.
+d-i finish-install/reboot_in_progress note
+
+# This will prevent the installer from ejecting the CD during the reboot,
+# which is useful in some situations.
+#d-i cdrom-detect/eject boolean false
+
+# This is how to make the installer shutdown when finished, but not
+# reboot into the installed system.
+#d-i debian-installer/exit/halt boolean true
+# This will power off the machine instead of just halting it.
+#d-i debian-installer/exit/poweroff boolean true
+
+### Preseeding other packages
+# Depending on what software you choose to install, or if things go wrong
+# during the installation process, it's possible that other questions may
+# be asked. You can preseed those too, of course. To get a list of every
+# possible question that could be asked during an install, do an
+# installation, and then run these commands:
+# debconf-get-selections --installer > file
+# debconf-get-selections >> file
+
+
+#### Advanced options
+### Running custom commands during the installation
+# d-i preseeding is inherently not secure. Nothing in the installer checks
+# for attempts at buffer overflows or other exploits of the values of a
+# preconfiguration file like this one. Only use preconfiguration files from
+# trusted locations! To drive that home, and because it's generally useful,
+# here's a way to run any shell command you'd like inside the installer,
+# automatically.
+
+# This first command is run as early as possible, just after
+# preseeding is read.
+# Prevent packaged version of VirtualBox Guest Additions being installed:
+d-i preseed/early_command string sed -i \
+ '/in-target/idiscover(){/sbin/discover|grep -v VirtualBox;}' \
+ /usr/lib/pre-pkgsel.d/20install-hwpackages
+
+# This command is run just before the install finishes, but when there is
+# still a usable /target directory. You can chroot to /target and use it
+# directly, or use the apt-install and in-target commands to easily install
+# packages and run commands in the target system.
diff --git a/definitions/jessie/puppet.sh b/definitions/jessie/puppet.sh
new file mode 100644
index 0000000..e5bb781
--- /dev/null
+++ b/definitions/jessie/puppet.sh
@@ -0,0 +1,7 @@
+# Prepare puppetlabs repo
+wget http://apt.puppetlabs.com/puppetlabs-release-jessie.deb
+dpkg -i puppetlabs-release-jessie.deb
+apt-get update
+
+# Install puppet/facter
+apt-get install -y puppet facter
diff --git a/definitions/jessie/ruby.sh b/definitions/jessie/ruby.sh
new file mode 100644
index 0000000..e44d60d
--- /dev/null
+++ b/definitions/jessie/ruby.sh
@@ -0,0 +1,10 @@
+# Install Ruby from packages
+apt-get -y install ruby ruby-dev libopenssl-ruby1.8 irb ri rdoc
+
+# Install Rubygems from source
+rg_ver=1.8.22
+curl -o /tmp/rubygems-${rg_ver}.zip \
+ "http://production.cf.rubygems.org/rubygems/rubygems-${rg_ver}.zip"
+(cd /tmp && unzip rubygems-${rg_ver}.zip && \
+ cd rubygems-${rg_ver} && ruby setup.rb --no-format-executable)
+rm -rf /tmp/rubygems-${rg_ver} /tmp/rubygems-${rg_ver}.zip
diff --git a/definitions/jessie/vagrant.sh b/definitions/jessie/vagrant.sh
new file mode 100644
index 0000000..54c2a71
--- /dev/null
+++ b/definitions/jessie/vagrant.sh
@@ -0,0 +1,21 @@
+# Set up Vagrant.
+
+date > /etc/vagrant_box_build_time
+
+# Create the user vagrant with password vagrant
+useradd -G sudo -p $(perl -e'print crypt("vagrant", "vagrant")') -m -s /bin/bash -N vagrant
+
+# Install vagrant keys
+mkdir -pm 700 /home/vagrant/.ssh
+curl -Lo /home/vagrant/.ssh/authorized_keys \
+ 'https://raw.github.com/mitchellh/vagrant/master/keys/vagrant.pub'
+chmod 0600 /home/vagrant/.ssh/authorized_keys
+chown -R vagrant:vagrant /home/vagrant/.ssh
+
+# Customize the message of the day
+echo 'Welcome to your Vagrant-built virtual machine.' > /var/run/motd
+
+# Install NFS client
+apt-get -y install nfs-common
+
+
diff --git a/definitions/jessie/virtualbox.sh b/definitions/jessie/virtualbox.sh
new file mode 100644
index 0000000..4dad649
--- /dev/null
+++ b/definitions/jessie/virtualbox.sh
@@ -0,0 +1,37 @@
+if test -f .vbox_version ; then
+ # The netboot installs the VirtualBox support (old) so we have to remove it
+ if test -f /etc/init.d/virtualbox-ose-guest-utils ; then
+ /etc/init.d/virtualbox-ose-guest-utils stop
+ fi
+
+ rmmod vboxguest
+ aptitude -y purge virtualbox-ose-guest-x11 virtualbox-ose-guest-dkms virtualbox-ose-guest-utils
+
+ # Install dkms for dynamic compiles
+
+ apt-get install -y dkms
+
+ # If libdbus is not installed, virtualbox will not autostart
+ apt-get -y install --no-install-recommends libdbus-1-3
+
+ # Install the VirtualBox guest additions
+ VBOX_VERSION=$(cat .vbox_version)
+ VBOX_ISO=VBoxGuestAdditions_$VBOX_VERSION.iso
+ mount -o loop $VBOX_ISO /mnt
+ yes|sh /mnt/VBoxLinuxAdditions.run
+ umount /mnt
+
+ # Start the newly build driver
+ /etc/init.d/vboxadd start
+
+ # Make a temporary mount point
+ mkdir /tmp/veewee-validation
+
+ # Test mount the veewee-validation
+ mount -t vboxsf veewee-validation /tmp/veewee-validation
+
+ rm $VBOX_ISO
+
+ # Symlink vbox guest additions. Fix for https://github.com/mitchellh/vagrant/issues/3341
+ ln -s /opt/VBoxGuestAdditions-$VBOX_VERSION/lib/VBoxGuestAdditions /usr/lib/VBoxGuestAdditions
+fi
diff --git a/definitions/jessie/vmfusion.sh b/definitions/jessie/vmfusion.sh
new file mode 100644
index 0000000..3ced7e4
--- /dev/null
+++ b/definitions/jessie/vmfusion.sh
@@ -0,0 +1,7 @@
+cd /tmp
+mkdir -p /mnt/cdrom
+mount -o loop /home/vagrant/linux.iso /mnt/cdrom
+tar zxvf /mnt/cdrom/VMwareTools-*.tar.gz -C /tmp/
+/tmp/vmware-tools-distrib/vmware-install.pl -d
+rm /home/vagrant/linux.iso
+umount /mnt/cdrom
diff --git a/definitions/jessie/zerodisk.sh b/definitions/jessie/zerodisk.sh
new file mode 100644
index 0000000..938075a
--- /dev/null
+++ b/definitions/jessie/zerodisk.sh
@@ -0,0 +1,3 @@
+# Zero out the free space to save space in the final image:
+dd if=/dev/zero of=/EMPTY bs=1M
+rm -f /EMPTY