More elaborate example
This commit is contained in:
parent
f40c5ab11d
commit
ed645ac002
@ -14,7 +14,7 @@ label custom_seed
|
||||
kernel /install/vmlinuz
|
||||
append initrd=/install/initrd.gz file=/cdrom/preseed/custom.seed --
|
||||
|
||||
label minimap_vm
|
||||
label minimal_vm
|
||||
menu label ^Minimal VM
|
||||
kernel /install/vmlinuz
|
||||
append initrd=/install/initrd.gz file=/cdrom/preseed/ubuntu-server-minimalvm.seed --
|
||||
|
@ -66,21 +66,128 @@ htop
|
||||
%post
|
||||
# Add arbitrary shell code to execute in the installer environment below here
|
||||
|
||||
# run upgrades at first boot
|
||||
# Ubuntu user
|
||||
useradd --create-home --groups sudo --shell /bin/bash ubuntu
|
||||
echo "ubuntu:ubuntu" | chpasswd
|
||||
touch /home/ubuntu/.sudo_as_admin_successful
|
||||
|
||||
|
||||
# First time startup script
|
||||
cat <<"EOF" > /usr/local/sbin/vm-firstboot.sh
|
||||
#!/bin/bash
|
||||
set +x
|
||||
sed -i -E "s/^#?PermitRootLogin .+/PermitRootLogin yes/" /etc/ssh/sshd_config
|
||||
apt-get update
|
||||
apt-get dist-upgrade -y
|
||||
apt-get install -y open-vm-tools
|
||||
rm /etc/firstboot
|
||||
reboot
|
||||
EOF
|
||||
|
||||
chmod +x /usr/local/sbin/vm-firstboot.sh
|
||||
# and systemd unit to call it
|
||||
cat <<"EOF" > /etc/systemd/system/vm-firstboot.service
|
||||
[Unit]
|
||||
Description=Initialize this template-created VM
|
||||
ConditionPathExists=/etc/firstboot
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
ExecStart=/usr/local/sbin/vm-firstboot.sh
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
EOF
|
||||
|
||||
ln -s /etc/systemd/system/vm-firstboot.service /etc/systemd/system/multi-user.target.wants/vm-firstboot.service
|
||||
touch /etc/firstboot
|
||||
sed -i -e "s/exit\s*0//" /etc/rc.local
|
||||
cat <<EOT >> /etc/rc.local
|
||||
# Below this line can be removed after first boot
|
||||
if [ -f /etc/firstboot ] ; then
|
||||
set +e
|
||||
sed -i -E "s/^PermitRootLogin .+/PermitRootLogin yes/" /etc/ssh/sshd_config
|
||||
apt-get update
|
||||
apt-get dist-upgrade -y
|
||||
# Install new kernel on 14.04
|
||||
#apt-get install -y linux-generic-lts-xenial open-vm-tools
|
||||
# revert to upstart on 16.04
|
||||
#apt-get install -y upstart-sysv
|
||||
rm /etc/firstboot
|
||||
reboot
|
||||
fi
|
||||
EOT
|
||||
|
||||
|
||||
# Template cleanup helper script
|
||||
cat <<"EOF" > /usr/local/sbin/vm-clean.sh
|
||||
#!/bin/bash
|
||||
touch /etc/firstboot
|
||||
rm -f /etc/ssh/*key*
|
||||
rm -f /etc/machine-id
|
||||
EOF
|
||||
|
||||
chmod +x /usr/local/sbin/vm-clean.sh
|
||||
|
||||
|
||||
# First boot ssh key regen
|
||||
cat <<"EOF" > /lib/systemd/system/ssh.service
|
||||
[Unit]
|
||||
Description=OpenBSD Secure Shell server
|
||||
After=network.target auditd.service
|
||||
ConditionPathExists=!/etc/ssh/sshd_not_to_be_run
|
||||
|
||||
[Service]
|
||||
EnvironmentFile=-/etc/default/ssh
|
||||
ExecStartPre=/bin/bash -c "test -f /etc/ssh/ssh_host_rsa_key || ssh-keygen -A"
|
||||
ExecStartPre=/usr/sbin/sshd -t
|
||||
ExecStart=/usr/sbin/sshd -D $SSHD_OPTS
|
||||
ExecReload=/usr/sbin/sshd -t
|
||||
ExecReload=/bin/kill -HUP $MAINPID
|
||||
KillMode=process
|
||||
Restart=on-failure
|
||||
RestartPreventExitStatus=255
|
||||
Type=notify
|
||||
RuntimeDirectory=sshd
|
||||
RuntimeDirectoryMode=0755
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
Alias=sshd.service
|
||||
EOF
|
||||
|
||||
|
||||
|
||||
# First boot machine uuidgen
|
||||
cat <<"EOF" > /etc/systemd/system/machineidgen.service
|
||||
[Unit]
|
||||
Description=Regen machine-id on first boot
|
||||
Before=systemd-networkd.service systemd-journald.service
|
||||
After=local-fs.target
|
||||
ConditionPathExists=!/etc/machine-id
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
ExecStart=/bin/systemd-machine-id-setup
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
EOF
|
||||
|
||||
ln -s /etc/systemd/system/machineidgen.service /etc/systemd/system/multi-user.target.wants/machineidgen.service
|
||||
rm /etc/machine-id
|
||||
|
||||
|
||||
# Show IP address on console
|
||||
cp /etc/issue /etc/issue.tpl
|
||||
|
||||
cat <<"EOF" > /usr/local/sbin/console-set-ip.sh
|
||||
#!/bin/bash
|
||||
cat /etc/issue.tpl > /etc/issue
|
||||
(ip addr | grep inet | awk '{print $2}' | grep -vE '^(::|fe80|127\.0\.0)') 2>&1 >> /etc/issue
|
||||
echo "" >> /etc/issue
|
||||
EOF
|
||||
|
||||
chmod +x /usr/local/sbin/console-set-ip.sh
|
||||
|
||||
|
||||
cat <<"EOF" > /etc/systemd/system/consoleip.service
|
||||
[Unit]
|
||||
Description=Display machine ip on console
|
||||
After=network.target
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
ExecStart=/usr/local/sbin/console-set-ip.sh
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
EOF
|
||||
|
||||
ln -s /etc/systemd/system/consoleip.service /etc/systemd/system/multi-user.target.wants/consoleip.service
|
||||
|
||||
rm -f /etc/update-motd.d/50-motd-news /etc/update-motd.d/80-livepatch
|
||||
|
@ -14,7 +14,7 @@ label custom_seed
|
||||
kernel /install/vmlinuz
|
||||
append initrd=/install/initrd.gz file=/cdrom/preseed/custom.seed --
|
||||
|
||||
label minimap_vm
|
||||
label minimal_vm
|
||||
menu label ^Minimal VM
|
||||
kernel /install/vmlinuz
|
||||
append initrd=/install/initrd.gz file=/cdrom/preseed/ubuntu-server-minimalvm.seed --
|
||||
|
Loading…
x
Reference in New Issue
Block a user