my_tmpfs for FreeBSD - November 2011

#!/bin/sh

# PROVIDE: my_tmpfs
# REQUIRE: FILESYSTEMS
# BEFORE:  DAEMON
# KEYWORD: shutdown
#
# Add the following lines to /etc/rc.conf to enable my_tmpfs:
#
# my_tmpfs_enable="YES"
#
# Todo: Must be added nojail to KEYWORD ?
#
. /etc/rc.subr

name="my_tmpfs"
rcvar=`set_rcvar`
start_cmd="${name}_start"
stop_cmd="${name}_stop"

load_rc_config $name
eval "${rcvar}=\${${rcvar}:-'NO'}"


# Change these backup directories. pool500gb is a pool on a 500GB HD.
samba_backup=/pool500gb/misc/backups/my_tmpfs/samba
varlog_backup=/pool500gb/misc/backups/my_tmpfs/var_log
spamd_backup=/pool500gb/misc/backups/my_tmpfs/spamd
my_tmpfs_dist=/pool500gb/misc/backups/my_tmpfs/my_tmpfs.dist

my_tmpfs_start()
{
    debug "$name: start"
    /usr/sbin/mtree -deU -f $my_tmpfs_dist -p /var/spool > /dev/null
    if [ -n "$samba_enable" ] && checkyesno samba_enable; then
    debug "$name: samba enabled"
    mkdir -p /var/log/samba /var/run/samba /var/db/samba \
        /var/db/samba/perfmon /var/db/samba/printing
    cp $samba_backup/*.tdb $samba_backup/group_mapping.ldb /var/db/samba
    fi
    if [ -n "$lighttpd_enable" ] && checkyesno lighttpd_enable; then
    debug "$name: lighttpd enabled"
    mkdir -p /var/log/lighttpd
    chown www:www /var/log/lighttpd
    fi
    if [ -n "$openvpn_enable" ] && checkyesno openvpn_enable; then
    debug "$name: openvpn enabled"
    mkdir -p /var/log/openvpn
    fi
    if [ -n "$spamd_enable" ] && checkyesno spamd_enable; then
    debug "$name: spamd enabled"
    mkdir -p /var/run/spamd
    chown spamd:spamd /var/run/spamd
    /usr/local/bin/sa-learn --dbpath /var/spool/spamd/.spamassassin \
        --restore $spamd_backup/.spamassassin/backup.txt
    chown -R spamd:spamd /var/spool/spamd
    fi
    if [ -n "$named_enable" ] && checkyesno named_enable; then
    debug "$name: named enabled"
    mkdir -p /var/run/named
    chown bind:bind /var/run/named
    ln -s /var/named/var/run/named/pid /var/run/named/pid
    fi
}

my_tmpfs_stop()
{
    debug "$name: stop"
    backup_file update $my_tmpfs_dist $my_tmpfs_dist.bak $my_tmpfs_dist.bak2
    /usr/sbin/mtree -c -d -i -n -k uname,gname,mode,nochange -p /var/spool > $my_tmpfs_dist
    if [ -n $varlog_backup ]; then
    mkdir -p $varlog_backup
    cp -a /var/log/ $varlog_backup
    fi
    if [ -n "$samba_enable" ] && checkyesno samba_enable; then
    debug "$name: samba enabled"
    mkdir -p $samba_backup $samba_backup/etc
    cp /var/db/samba/account_policy.tdb /var/db/samba/group_mapping.ldb \
        /var/db/samba/ntdrivers.tdb /var/db/samba/ntdrivers.tdb \
        /var/db/samba/ntforms.tdb /var/db/samba/ntprinters.tdb \
        /var/db/samba/registry.tdb /var/db/samba/share_info.tdb \
        $samba_backup
    cp /usr/local/etc/samba/*.tdb $samba_backup/etc
    /usr/local/bin/tdbbackup $samba_backup/*.tdb \
        $samba_backup/group_mapping.ldb $samba_backup/etc/*.tdb
    fi
    if [ -n "$spamd_enable" ] && checkyesno spamd_enable; then
    debug "$name: spamd enabled"
    mkdir -p $spamd_backup/.spamassassin
    backup_file update  $spamd_backup/.spamassassin/backup.txt \
        $spamd_backup/.spamassassin/backup.txt.bak $spamd_backup/.spamassassin/backup.txt.bak2
    /usr/local/bin/sa-learn --backup --dbpath /var/spool/spamd/.spamassassin > \
        $spamd_backup/.spamassassin/backup.txt

    fi
}
run_rc_command "$1"