20a3538e72
Entries weren't being properly echoed into /usr/jail/rw/${name}/etc/rc.conf
300 lines
8.6 KiB
Bash
Executable file
300 lines
8.6 KiB
Bash
Executable file
#!/bin/sh
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#
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# 2012 Jake Guffey (jake.guffey at eprotex.com)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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# The __jail type creates, configures, and deletes FreeBSD jails for use as
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# virtual machines.
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#
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# Debug
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#exec >&2
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#set -x
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if [ -f "$__object/parameter/name" ]; then
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name="$(cat "$__object/parameter/name")"
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else
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name="$__object_id"
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fi
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state="$(cat "$__object/parameter/state")"
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if [ -f "$__object/parameter/started" ]; then
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started="$(cat "$__object/parameter/started")"
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else
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if [ ! "$state" = "present" ]; then
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started="false"
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else
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started="true"
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fi
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fi
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if [ -f "$__object/parameter/ip" ]; then
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ip="$(cat "$__object/parameter/ip")"
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else
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# IP is an optional param when $state=absent, but
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# when $state=present, it's required. Enforce this.
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if [ "$state" = "present" ]; then
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exec >&2
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echo "If --state is 'present,' --ip must be given\!"
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exit 1
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fi
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fi
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if [ -f "$__object/parameter/hostname" ]; then
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hostname="$(cat "$__object/parameter/hostname")"
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else
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hostname="$name"
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fi
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if [ -f "$__object/parameter/interface" ]; then
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interface="$(cat "$__object/parameter/interface")"
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fi
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if [ -f "$__object/parameter/devfs-enable" ]; then
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devfsenable="$(cat "$__object/parameter/devfs-enable")"
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else
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devfsenable="true"
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fi
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if [ -f "$__object/parameter/devfs-ruleset" ]; then
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devfsruleset="$(cat "$__object/parameter/devfs-ruleset")"
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else
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devfsruleset="jailrules"
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fi
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# devfs_ruleset being defined without devfs_enable being true
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# is pointless. Treat this as an error.
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if [ -n "$devfsruleset" -a "$devfsenable" = "false" ]; then
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exec >&2
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echo "Can't have --devfs-ruleset defined without --devfs-enable true."
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exit 1
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fi
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if [ -f "$__object/parameter/onboot" ]; then
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onboot="$(cat "$__object/parameter/onboot")"
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fi
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jaildir="/usr/jail"
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present="$(cat "$__object/explorer/present")"
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status="$(cat "$__object/explorer/status")"
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# Defining a jail as absent and started at the same time
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# makes no sense. Treat this as an error.
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if [ "$started" = "true" -a "$state" = "absent" ]; then
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exec >&2
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echo "Can't have --state absent and --started true together\!"
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exit 1
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fi
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stopJail() {
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# Check $status before issuing command
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if [ "$status" = "STARTED" ]; then
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echo "/etc/rc.d/jail stop ${name}"
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fi
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}
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startJail() {
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# Check $status before issuing command
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if [ "$status" = "NOTSTART" ]; then
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echo "/etc/rc.d/jail start ${name}"
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fi
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}
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deleteJail() {
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# Unmount the jail's mountpoints if necessary
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cat <<EOF
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output="\$(mount | grep "\/${name}\/dev")" || true
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if [ -n "\${output}" ]; then # /dev is still mounted...jail still running?
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/etc/rc.d/jail stop "${name}"
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fi
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output="\$(mount | grep "\/rw\/${name}\/")" || true
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if [ -n "\${output}" ]; then # >=1 rw mount is mounted still
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for DIR in "${output}"; do
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umount -F "/etc/fstab.${name}" "\$(echo "${DIR}" | awk '{print $3}')"
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done
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fi
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output="\$(mount | grep "\/${name} (")" || true
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if [ -n "\${output}" ]; then # ro mount is mounted still
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umount -F "/etc/fstab.${name}" "\$(echo "${output}" | awk '{print $3}')"
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fi
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EOF
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# Remove the jail's rw mountpoints
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echo "rm -rf \"/usr/jail/rw/${name}\""
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# Remove the jail directory
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echo "rm -rf \"/usr/jail/${name}\""
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# Remove the jail's fstab
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echo "rm -f \"/etc/fstab.${name}\""
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# Remove jail_$name_* lines from rc.conf
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cat <<EOF
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sed -i '.bak' "/^jail_${name}_/d" /etc/rc.conf
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if [ -f "/etc/rc.conf.bak" ]; then
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rm -f /etc/rc.conf.bak
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fi
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EOF
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# Remove " $name " from jail_list if it's there
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cat <<EOF
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eval \$(grep '^jail_list=' /etc/rc.conf)
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for JAIL in \${jail_list}; do
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if [ ! "\${JAIL}" = "${name}" ]; then
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new_list="\${new_list} \${JAIL}"
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fi
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done
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jail_list="\${new_list}"
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sed -i '.bak' "s/^jail_list=\".*\"/jail_list=\"\${jail_list}\"/" /etc/rc.conf
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unset jail_list
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if [ -f "/etc/rc.conf.bak" ]; then
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rm -f /etc/rc.conf.bak
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fi
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EOF
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}
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createJail() {
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# Create the jail directory
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cat <<EOF
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mkdir -p ${jaildir}/${name}
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if [ ! -d "${jaildir}/base" ]; then
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mkdir "${jaildir}/base"
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tar -xzf "${jaildir}/jailbase.tgz" -C "${jaildir}/base"
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if [ ! -d "${jaildir}/base/usr/local" ]; then
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mkdir -p "${jaildir}/base/usr/local"
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fi
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if [ ! -d "${jaildir}/base/usr/home" ]; then
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mkdir -p "${jaildir}/base/usr/home"
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fi
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fi
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if [ ! -d "${jaildir}/rw" ]; then
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mkdir "${jaildir}/rw"
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fi
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mkdir -p "${jaildir}/rw/${name}/etc"
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cp -r ${jaildir}/base/etc/* "${jaildir}/rw/${name}/etc/"
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mkdir "${jaildir}/rw/${name}/local"
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mkdir "${jaildir}/rw/${name}/db"
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if [ -n "\$(ls ${jaildir}/base/var/db)" ]; then
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cp -r ${jaildir}/base/var/db/* "${jaildir}/rw/${name}/db/"
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fi
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mkdir "${jaildir}/rw/${name}/home"
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if [ -n "\$(ls ${jaildir}/base/usr/home)" ]; then
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cp -r ${jaildir}/base/usr/home/* "${jaildir}/rw/${name}/home/"
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fi
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mkdir "${jaildir}/rw/${name}/tmp"
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EOF
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# Create the ro+rw mountpoint entries in fstab
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cat <<EOF
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cat >/etc/fstab.${name} <<END
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/usr/jail/base /usr/jail/${name} nullfs ro 0 0
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/usr/jail/rw/${name}/etc /usr/jail/${name}/etc nullfs rw 0 0
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/usr/jail/rw/${name}/local /usr/jail/${name}/usr/local nullfs rw 0 0
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/usr/jail/rw/${name}/db /usr/jail/${name}/var/db nullfs rw 0 0
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/usr/jail/rw/${name}/home /usr/jail/${name}/usr/home nullfs rw 0 0
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/usr/jail/rw/${name}/tmp /usr/jail/${name}/var/tmp nullfs rw 0 0
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END
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EOF
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# Add the jail_$name_* lines to rc.conf
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cat <<EOF
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cat >>/etc/rc.conf <<END
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jail_${name}_rootdir="${jaildir}/${name}"
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jail_${name}_hostname="${hostname}"
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jail_${name}_ip="${ip}"
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jail_${name}_devfs_enable="${devfsenable}"
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jail_${name}_mount_enable="YES"
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jail_${name}_fstab="/etc/fstab.$name"
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END
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EOF
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if [ -n "$interface" ]; then
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cat <<EOF
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cat >>/etc/rc.conf <<END
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jail_${name}_interface="${interface}"
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END
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EOF
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fi
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if [ "$devfsenable" = "true" ]; then
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cat <<EOF
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cat >>/etc/rc.conf <<END
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jail_${name}_devfs_ruleset="${devfsruleset}"
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END
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if [ "${devfsruleset}" = "jailrules" ]; then # The default ruleset is to be used
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if [ -z "\$(grep '\[jailrules=' /etc/devfs.rules)" ]; then # The default ruleset doesn't exist
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# Get the highest-numbered ruleset
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highest="\$(sed -n 's/\[.*=\([0-9]*\)\]/\1/pg' /etc/devfs.rules | sort -u | tail -n 1)" || true
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# increment by 1
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let num="\${highest}+1" 2>&- >&-
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# add default ruleset
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cat >>/etc/devfs.rules <<END
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[jailrules=\${num}]
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add include \\\$devfsrules_hide_all
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add include \\\$devfsrules_unhide_basic
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add include \\\$devfsrules_unhide_login
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END
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fi
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fi
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EOF
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fi
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# Add $name to jail_list if $onboot=true
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if [ "$onboot" = "true" ]; then
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cat <<EOF
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eval \$(grep '^jail_list=' /etc/rc.conf)
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jail_list="\${jail_list} ${name}"
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sed -i '.bak' "s/^jail_list=\".*\"/jail_list=\"\${jail_list}\"/" /etc/rc.conf
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unset jail_list
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rm -f /etc/rc.conf.bak
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EOF
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fi
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# Add the normal entries into the jail's rc.conf
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echo "echo hostname=\\\"${hostname}\\\" >\\\"${jaildir}/rw/${name}/etc/rc.conf\\\""
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echo "echo sshd_enable=\\\"YES\\\" >>\\\"${jaildir}/rw/${name}/etc/rc.conf\\\""
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echo "echo sendmail_enable=\\\"NONE\\\" >>\\\"${jaildir}/rw/${name}/etc/rc.conf\\\""
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echo "echo syslogd_enable=\\\"YES\\\" >>\\\"${jaildir}/rw/${name}/etc/rc.conf\\\""
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echo "echo syslogd_flags=\\\"-ss\\\" >>\\\"${jaildir}/rw/${name}/etc/rc.conf\\\""
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}
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if [ "$present" = "EXISTS" ]; then # The jail currently exists
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if [ "$state" = "present" ]; then # The jail is supposed to exist
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if [ "$started" = "true" ]; then # The jail is supposed to be started
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startJail
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else # The jail is not supposed to be started
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stopJail
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fi
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exit 0
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else # The jail is not supposed to exist
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stopJail
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deleteJail
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exit 0
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fi
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else # The jail does not currently exist
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if [ "$state" = "absent" ]; then # The jail is not supposed to be present
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exit 0
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else # The jail is supposed to exist
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createJail
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[ "$started" = "true" ] && startJail
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exit 0
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fi
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fi
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# Debug
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#set +x
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