guestfs: Per-user storage pools

I'd like to be able to run more than one instance of kdevops per
physical host. Currently the kdevops guestfs set-up steers all
storage pool activity into ${STORAGE_POOL}/kdevops/guestfs, which
means there's a good change that two different logged-in users will
create virtual machines whose names (and block devices) conflict.

So far I haven't been able to get the other storage pool-related
settings to add sufficient uniqueness to prevent this conflict.

Instead, replace the "kdevops" string in the storage pool path with
the name of the user account running kdevops.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Author: chucklever

kconfigs/Kconfig.libvirt

@@ -167,7 +167,7 @@ config LIBVIRT_STORAGE_POOL_PATH
 config KDEVOPS_STORAGE_POOL_PATH
 	string
 	output yaml
-	default "{{ libvirt_storage_pool_path }}/kdevops"
+	default "{{ libvirt_storage_pool_path }}/{{ kdevops_storage_pool_user }}"
 
 config QEMU_BIN_PATH
 	string

scripts/bringup_guestfs.sh

@@ -14,8 +14,7 @@ IMG_FMT="qcow2"
 if [ "${CONFIG_LIBVIRT_EXTRA_DRIVE_FORMAT_RAW}" = "y" ]; then
 	IMG_FMT="raw"
 fi
-STORAGETOPDIR="${CONFIG_LIBVIRT_STORAGE_POOL_PATH}"
-STORAGEDIR="${STORAGETOPDIR}/kdevops/guestfs"
+STORAGEDIR="${CONFIG_KDEVOPS_STORAGE_POOL_PATH}/guestfs"
 QEMU_GROUP=$CONFIG_LIBVIRT_QEMU_GROUP
 GUESTFSDIR="${TOPDIR}/guestfs"
 OS_VERSION=${CONFIG_VIRT_BUILDER_OS_VERSION}

scripts/destroy_guestfs.sh

@@ -7,7 +7,7 @@ source ${TOPDIR}/scripts/lib.sh
 
 export LIBVIRT_DEFAULT_URI=$CONFIG_LIBVIRT_URI
 
-STORAGEDIR="${CONFIG_LIBVIRT_STORAGE_POOL_PATH}/kdevops/guestfs"
+STORAGEDIR="${CONFIG_KDEVOPS_STORAGE_POOL_PATH}/guestfs"
 GUESTFSDIR="${TOPDIR}/guestfs"
 
 if [ -f "$GUESTFSDIR/kdevops_nodes.yaml" ]; then

scripts/guestfs.Makefile

@@ -100,4 +100,4 @@ destroy_guestfs:
 PHONY += destroy_guestfs
 
 cleancache:
-	$(Q)rm -f $(subst ",,$(CONFIG_LIBVIRT_STORAGE_POOL_PATH))/kdevops/guestfs/base_images/*
+	$(Q)rm -f $(subst ",,$("${CONFIG_KDEVOPS_STORAGE_POOL_PATH}/guestfs"))/guestfs/base_images/*