release: add basic cloudinit images

Provide both zfs and ufs images which a 1MB partition reserved for the
config drive wearing a GPT Label "config-drive" to allow consumer to
know where they should push the config drive on the provided image.

This has been tested on OVHCloud baremetal via "bring your own image"
Also tested on openstack

Reviewed by:		emaste
Sponsored by:		OVHCloud
Differential Revision:		https://reviews.freebsd.org/D44369

(cherry picked from commit 78b6117dac99c80fe618979fef4ef322b97415fa)
(cherry picked from commit a977444652a59332c53b652b912c38a1d1802b58)

release/Makefile.vm

@@ -19,6 +19,7 @@ RAW_DESC=	Unformatted raw disk image
 
 CLOUDWARE_TYPES?= AZURE \
 		BASIC-CI \
+		BASIC-CLOUDINIT \
 		EC2 \
 		GCE \
 		OCI \
@@ -29,6 +30,9 @@ AZURE_DESC=	Microsoft Azure platform image
 BASIC-CI_FORMAT=	raw
 BASIC-CI_FSLIST=	ufs
 BASIC-CI_DESC=		Image for CI
+BASIC-CLOUDINIT_FORMAT=	raw
+BASIC-CLOUDINIT_FSLIST?=	ufs zfs
+BASIC-CLOUDINIT_DESC?=	Images for VM with cloudinit disk config support
 EC2_FORMAT=	raw
 EC2_FSLIST=	ufs zfs
 EC2_FLAVOURS=	BASE CLOUD-INIT

release/tools/basic-cloudinit.conf

@@ -0,0 +1,36 @@
+#!/bin/sh
+#
+#
+
+# Should be enough for base image, image can be resized in needed
+export VMSIZE=5g
+
+# 1M config drive should be enough in most cases
+export CONFIG_DRIVE=YES
+export CONFIG_DRIVE_SIZE=1M
+
+# Set to a list of third-party software to enable in rc.conf(5).
+export VM_RC_LIST="sshd growfs nuageinit"
+
+vm_extra_pre_umount() {
+	cat << EOF >> ${DESTDIR}/etc/rc.conf
+dumpdev="AUTO"
+ifconfig_DEFAULT="DHCP"
+sshd_enable="YES"
+EOF
+
+	cat << EOF >> ${DESTDIR}/boot/loader.conf
+autoboot_delay="-1"
+beastie_disable="YES"
+loader_logo="none"
+console="comconsole,vidconsole"
+EOF
+    cat <<EOF >> ${DESTDIR}/etc/ssh/sshd_config
+PasswordAuthentication yes
+UsePAM no
+EOF
+
+	touch ${DESTDIR}/firstboot
+
+	return 0
+}

release/tools/vmimage.subr

@@ -242,6 +242,10 @@ vm_create_disk() {
 		BOOTPARTSOFFSET=":${VM_BOOTPARTSOFFSET}"
 	fi
 
+	if [ -n "${CONFIG_DRIVE}" ]; then
+		CONFIG_DRIVE="-p freebsd/config-drive::${CONFIG_DRIVE_SIZE}"
+	fi
+
 	case "${VMFS}" in
 	ufs)
 		FSPARTTYPE=freebsd-ufs
@@ -315,6 +319,7 @@ vm_create_disk() {
 	mkimg -s ${PARTSCHEME} -f ${VMFORMAT} \
 		${BOOTPARTS} \
 		${SWAPOPT} \
+		${CONFIG_DRIVE} \
 		${ROOTFSPART} \
 		-o ${VMIMAGE}