release/Makefile:

Connect the virtual machine image build to the release
  target if WITH_VMIMAGES is set to a non-empty value.

release/release.sh:
  Add WITH_VMIMAGES to RELEASE_RMAKEFLAGS.

release/release.conf.sample:
  Add commented entries for tuning the release build if the
  WITH_VMIMAGES make(1) environment variable is set to
  a non-empty value.

Sponsored by:	The FreeBSD Foundation

release/Makefile

@@ -278,6 +278,9 @@ ftp: packagesystem
 release:
 	${MAKE} -C ${.CURDIR} ${.MAKEFLAGS} obj
 	${MAKE} -C ${.CURDIR} ${.MAKEFLAGS} ${RELEASE_TARGETS}
+.if defined(WITH_VMIMAGES) && !empty(WITH_VMIMAGES)
+	${MAKE} -C ${.CURDIR} ${.MAKEFLAGS} ${VMTARGETS}
+.endif
 
 install:
 .if defined(DESTDIR) && !empty(DESTDIR)

release/release.conf.sample

@@ -77,3 +77,20 @@ PORTBRANCH="ports/head@rHEAD"
 ## as TARGET/TARGET_ARCH.
 #CHROOT_MAKEENV=
 
+## Set to a non-empty value to build virtual machine images as part of the
+## release build.
+#WITH_VMIMAGES=
+
+## If WITH_VMIMAGES is set to a non-empty value, this is the name of the
+## file to use for the installed userland/kernel.
+#VMBASE="vm"
+
+## If WITH_VMIMAGES is set to a non-empty value, this is the size of the
+## virtual machine disk filesystem.  Valid size values are described in
+## the truncate(1) manual page.
+#VMSIZE="20G"
+
+## If WITH_VMIMAGES is set to a non-empty value, this is a list of disk
+## image formats to create.  Valid values are listed in the mkimg(1)
+## manual page, as well as 'mkimg --formats' output.
+#VMFORMATS="vhdf vmdk qcow2 raw"

release/release.sh

@@ -169,7 +169,7 @@ CHROOT_DMAKEFLAGS="${CONF_FILES}"
 RELEASE_WMAKEFLAGS="${MAKE_FLAGS} ${WORLD_FLAGS} ${ARCH_FLAGS} ${CONF_FILES}"
 RELEASE_KMAKEFLAGS="${MAKE_FLAGS} ${KERNEL_FLAGS} KERNCONF=\"${KERNEL}\" ${ARCH_FLAGS} ${CONF_FILES}"
 RELEASE_RMAKEFLAGS="${ARCH_FLAGS} KERNCONF=\"${KERNEL}\" ${CONF_FILES} \
-	${DOCPORTS} WITH_DVD=${WITH_DVD}"
+	${DOCPORTS} WITH_DVD=${WITH_DVD} WITH_VMIMAGES=${WITH_VMIMAGES}"
 
 # Force src checkout if configured
 FORCE_SRC_KEY=