my NanoBSD router config

gateway.nanobsd

#! /bin/sh
NANO_NAME=gateway-j3160

NANO_SRC=/data/src
NANO_OBJ=/usr/obj/nanobsd/gateway.v3

NANO_ROOT_DIR=/usr/home/lev/nanobsd
NANO_CONFROOT=${NANO_ROOT_DIR}/gateway.v3
NANO_TOOLS=${NANO_ROOT_DIR}/scripts

NANO_PACKAGE_DIR=${NANO_CONFROOT}/Pkg
NANO_FILESDIR=${NANO_CONFROOT}/Files
NANO_KERNEL=${NANO_CONFROOT}/J3160

NANO_DISKIMGDIR=/data/nanobsd
NANO_IMGNAME="${NANO_NAME}"

# Parallel make
NANO_PMAKE="make -j4"

# Images
NANO_INIT_IMG2=0

# Code size 512MB
NANO_CODESIZE=1060232

# 8MB
NANO_CONFSIZE=16384

# Data slice for named & dhcpd - 6.2Gb to minimize code section
#NANO_DATASIZE=14065664
#NANO_DATASIZE=5677056
#NANO_DATASIZE=27934098
#NANO_DATADIR=${NANO_CONFROOT}/Data
NANO_DATASIZE=0

NANO_RAM_ETCSIZE=20480
NANO_RAM_TMPVARSIZE=524288

# glabel support
NANO_LABEL=gw

# Buildworld
CONF_BUILD=''

# Modules
NANO_MODULES=

# Packages to remove after full installation
#PACKAGES_TO_REMOVE="python2 python27 libffi indexinfo"
PACKAGES_TO_REMOVE=

# Special instruction to "install"

# Installworld
CONF_INSTALL='
WITHOUT_INSTALLLIB=yes
WITHOUT_MAKE=yes
WITHOUT_TOOLCHAIN=yes
WITHOUT_INCLUDES=yes
'

CONF_WORLD='
BOOT_COMCONSOLE_SPEED=115200
BOOT_BOOT0_COMCONSOLE_SPEED=0
BOOT_BOOT0_RESET_TERM=yes

MODULES_OVERRIDE=

WITHOUT_CROSS_COMPILER=yes

WITHOUT_BINUTILS_BOOTSTRAP=yes
WITHOUT_BINUTILS=yes

WITHOUT_CLANG_BOOTSTRAP=yes
WITHOUT_CLANG=yes
WITHOUT_CLANG_EXTRAS=yes

WITHOUT_ELFTOOLCHAIN_BOOTSTRAP=yes
WITHOUT_ELFTOOLCHAIN=yes
WITHOUT_ELFTOOLCHAIN_TOOLS=yes

WITHOUT_GCC_BOOTSTRAP=yes
WITHOUT_GCC=yes

WITHOUT_LLD_BOOTSTRAP=yes
WITHOUT_LLD=yes

XCC=/usr/bin/cc
XCXX=/usr/bin/c++
XCPP=/usr/bin/cpp
XAS=/usr/bin/as
XAR=/usr/bin/ar
XLD=/usr/bin/ld
XNM=/usr/bin/nm
XOBJDUMP=/usr/bin/objdump
XRANLIB=/usr/bin/ranlib
XSTRINGS=/usr/bin/strings
XSTRIPBIN=/usr/bin/strip
COMPILER_TYPE=clang

WITH_FAST_DEPEND=yes
MALLOC_PRODUCTION=yes

WITH_BSD_GREP=yes

WITHOUT_ACCT=yes
WITHOUT_ACPI=yes
WITHOUT_AMD=yes
WITHOUT_APM=yes
WITHOUT_ATM=yes
WITHOUT_AUDIT=yes
WITHOUT_AUTHPF=yes
WITHOUT_AUTOFS=yes
WITHOUT_BHYVE=yes
WITHOUT_BLACKLIST=yes
WITHOUT_BLACKLIST_SUPPORT=yes
WITHOUT_BIND_DNSSEC=yes
WITHOUT_BOOTPARAMD=yes
WITHOUT_BOOTPD=yes
WITHOUT_BSD_CPIO=yes
WITHOUT_BSDINSTALL=yes
WITHOUT_BZIP2=yes
WITHOUT_BZIP2_SUPPORT=yes
WITHOUT_CALENDAR=yes
WITHOUT_CAPSICUM=yes
WITHOUT_CASPER=yes
WITHOUT_CCD=yes
WITHOUT_CDDL=yes
WITHOUT_CTM=yes
WITHOUT_CUSE=yes
WITHOUT_CXGBETOOL=yes
WITHOUT_DEBUG_FILES=yes
WITHOUT_DICT=yes
WITHOUT_EXAMPLES=yes
WITHOUT_FDT=yes
WITHOUT_FILE=yes
WITHOUT_FINGER=yes
WITHOUT_FLOPPY=yes
WITHOUT_FREEBSD_UPDATE=yes
WITHOUT_GAMES=yes
WITHOUT_GCOV=yes
WITHOUT_GNUCXX=yes
WITHOUT_GNU_GREP=yes
WITHOUT_GNU_GREP_COMPAT=yes
WITHOUT_GDB=yes
WITHOUT_GPIO=yes
WITHOUT_GPL_DTC=yes
WITHOUT_GROFF=yes
WITHOUT_GSSAPI=yes
WITHOUT_HAST=yes
WITHOUT_HTML=yes
WITHOUT_HYPERV=yes
WITHOUT_INETD=yes
WITHOUT_INFO=yes
WITHOUT_IPFILTER=yes
WITHOUT_ISCSI=yes
WITHOUT_JAIL=yes
WITHOUT_KERBEROS=yes
WITHOUT_KERBEROS_SUPPORT=yes
WITHOUT_KERNEL_SYMBOLS=yes
WITHOUT_LEGACY_CONSOLE=yes
WITHOUT_LIB32=yes
WITHOUT_LLDB=yes
WITHOUT_LOCALES=yes
WITHOUT_LOCATE=yes
WITHOUT_LPR=yes
WITHOUT_MAN=yes
WITHOUT_MANDOCDB=yes
WITHOUT_MAN_UTILS=yes
WITHOUT_NDIS=yes
WITHOUT_NIS=yes
WITHOUT_NLS=yes
WITHOUT_NLS_CATALOGS=yes
WITHOUT_NS_CACHING=yes
WITHOUT_PC_SYSINSTALL=yes
WITHOUT_PF=yes
WITHOUT_PORTSNAP=yes
WITHOUT_PPP=yes
WITHOUT_PROFILE=yes
WITHOUT_QUOTAS=yes
WITHOUT_RADIUS_SUPPORT=yes
WITHOUT_RCMDS=yes
WITHOUT_RESCUE=yes
WITHOUT_RBOOTD=yes
WITHOUT_ROUTED=yes
WITHOUT_SENDMAIL=yes
WITHOUT_SHAREDOCS=yes
WITHOUT_SVNLITE=yes
WITHOUT_SYSCONS=yes
WITHOUT_TALK=yes
WITHOUT_TCP_WRAPPERS=yes
WITHOUT_TELNET=yes
WITHOUT_TESTS=yes
WITHOUT_TESTS_SUPPORT=yes
WITHOUT_TFTP=yes
WITHOUT_TIMED=yes
WITHOUT_UNBOUND=yes
WITHOUT_USB_GADGET_EXAMPLES=yes
WITHOUT_VI=yes
WITHOUT_VT=yes
WITHOUT_ZFS=yes
'

#
NANO_BOOT0CFG="-o packet -s 1 -m 3 -t 18"
NANO_BOOTLOADER="boot/boot0sio"
# BOOT
NANO_BOOT2CFG="-DhS115200"

# Media
NANO_HEADS=255
NANO_SECTS=63
NANO_MEDIASIZE=30031250

# Additional FSes
NANO_ADD_FS="unifi home"

NANO_ADD_FS_unifi_DEV="/dev/ufs/unifi"
NANO_ADD_FS_unifi_MNT="/usr/local/share/java/unifi"
NANO_ADD_FS_unifi_TYP="ufs"
NANO_ADD_FS_unifi_OPT="rw,union"
NANO_ADD_FS_unifi_CHK="3"

NANO_ADD_FS_home_DEV="192.168.134.2:/home"
NANO_ADD_FS_home_MNT="/usr/home"
NANO_ADD_FS_home_TYP="nfs"
NANO_ADD_FS_home_OPT="nfsv4,rw,late,soft,intr,bg,wsize=65536,rsize=65536,tcp"

# Totally new
cust_remove_samples() (
	pprint 2 "remove samples from /usr/local/etc"
	(
		cd ${NANO_WORLDDIR}
		find usr/local/etc -name '*sample' -delete
		find usr/local/etc -name '*dist' -delete
		find usr/local/etc -name '*example' -delete
		rm usr/local/etc/nsd/nsd.conf
	)
)

cust_remove_pkgdb() (
	pprint 2 "remove package database to save space"
	(
		cd ${NANO_WORLDDIR}
		rm -rf var/db/pkg/*
	)
)

cust_remove_sys_leftovers() (
	pprint 2 "remove system's files which is not needed"
	(
		cd ${NANO_WORLDDIR}
		rm -rf usr/include/*
		rm -rf usr/lib/debug
		find   usr/lib/ -name \*.a -delete
	)
)

cust_remove_unneeded_packages() (
	if [ -z "${PACKAGES_TO_REMOVE}" ] ; then return 0 ; fi
	pprint 2 "remove packages which is not needed"
	chroot ${NANO_WORLDDIR} sh -c "pkg delete -f -y ${PACKAGES_TO_REMOVE}"
)

cust_remove_packages_leftovers() (
	pprint 2 "remove packages' files which is not needed"
	(
		cd ${NANO_WORLDDIR}
		find   usr/local/lib/ -name \*.a -delete
		rm -rf usr/local/man/*
		rm -rf usr/local/include/*
		rm -rf usr/local/lib/python2.7
		rm -rf usr/local/share/doc
		rm -rf usr/local/share/examples
		rm -rf usr/local/share/python2.7
		rm -rf usr/local/share/licenses
		rm -rf usr/local/share/aclocal
		rm -rf usr/local/share/zsh
		rm -rf usr/local/bin/mongo
		rm -rf usr/local/bin/mongoperf
		rm -rf usr/local/bin/mongos
	)
)

cust_additionalfs () (
	pprint 2 "configure nanobsd /etc/fstab: add additional FSes"
	(
		cd ${NANO_WORLDDIR}
		for fs in ${NANO_ADD_FS} ; do
			eval dev=\$NANO_ADD_FS_${fs}_DEV
			eval mnt=\$NANO_ADD_FS_${fs}_MNT
			eval typ=\$NANO_ADD_FS_${fs}_TYP
			eval opt=\$NANO_ADD_FS_${fs}_OPT
			eval frq=\$NANO_ADD_FS_${fs}_FRQ
			eval chk=\$NANO_ADD_FS_${fs}_CHK
			if [ -z "${dev}" ] ; then
				echo "Device for additional fs '${fs}' unknown" 1>&2
				exit 1
			fi
			if [ -z "${mnt}" ] ; then
				echo "Mountpoint for additional fs '${fs}' unknown" 1>&2
				exit 1
			fi
			typ=${typ:=ufs}
			opt=${opt:=ro}
			frq=${frq:=0}
			chk=${chk:=0}
			if [ ! -d ./${mnt} ] ; then
				mkdir -p ./${mnt} ; touch ./${mnt}/.keepthis
			fi
			printf "%s\t%s\t%s\t%s\t%s\t%s\n" $dev $mnt $typ $opt $frq $chk >> etc/fstab
		done
	)
)

cust_etcdb () (
	pprint 2 "Call pwd_mkdb & cap_mkdb"
	(
		cd ${NANO_WORLDDIR}
		pwd_mkdb -p -d etc etc/master.passwd
		cap_mkdb           etc/login.conf
	)
)

#######################################################################
# Install the stuff under ./Files

cust_install_files_my () (
	cd ${NANO_FILESDIR}
	find . -print | grep -Ev '/(CVS|\.svn|.mtree)' | cpio -dumpv ${NANO_WORLDDIR}
	find . -type f -name .mtree -print | while read fn ; do
		dir=`dirname ${fn}`
		mtree -Ueq -f ${fn} -p ${NANO_WORLDDIR}/${dir}
	done
)

customize_cmd cust_comconsole
customize_cmd cust_pkgng
customize_cmd cust_remove_unneeded_packages
customize_cmd cust_remove_samples
customize_cmd cust_remove_pkgdb
customize_cmd cust_remove_sys_leftovers
customize_cmd cust_remove_packages_leftovers
customize_cmd cust_install_files_my
customize_cmd cust_additionalfs
customize_cmd cust_etcdb