lib/ve.mk: introduced ve/bare

A minimal chroot supporting extension via apt-get;
vitals if built on Sisyphus as of Jan 16, 2012:

  i586: 13M tar.xz, 58M chroot (33M w/o /usr/share/{doc,locale,man})
x86_64: 14M tar.xz, 60M chroot (35M w/o /usr/share/{doc,locale,man})

Trivial fixups (extra checks) added to two script hooks.

features.in/build-ve/image-scripts.d/03services

@@ -6,6 +6,8 @@
 # candidates:
 # off: keytable
 
+[ -x /sbin/chkconfig ] || exit 0
+
 for i in network random syslogd random; do chkconfig $i on; done
 for i in fbsetfont netfs rawdevices; do chkconfig $i off; done
 :

features.in/build-ve/image-scripts.d/04inittab

@@ -1,3 +1,4 @@
 #!/bin/sh -e
 # we don't need no gettys in OpenVZ VEs (might need one in LXC though)
+[ -s /etc/inittab ] || exit 0
 sed -i 's,^[0-9]\+:[0-9]\+:respawn:/sbin/mingetty.*,#&,' /etc/inittab

lib/ve.mk

@@ -9,6 +9,9 @@ ifeq (ve,$(IMAGE_CLASS))
 ve/.bare: profile/bare
 	@$(call add,BASE_PACKAGES,basesystem)
 
+ve/bare: ve/.bare
+	@$(call add,BASE_PACKAGES,apt)
+
 ve/generic: ve/.bare
 	@$(call add,BASE_LISTS,\
 		$(call tags,base && (server || network || security || pkg)))