[libvirt] [PATCH 6/6] virsh: Add build flags to pool-create[-as] and pool-start
John Ferlan
jferlan at redhat.com
Wed Nov 25 19:11:08 UTC 2015
https://bugzilla.redhat.com/show_bug.cgi?id=830056
Utilize recently added VIR_STORAGE_POOL_CREATE_WITH_BUILD* flags in
order to pass the flags along to the virStoragePoolCreateXML and
virStoragePoolCreate API's.
This affects the 'virsh pool-create', 'virsh pool-create-as', and
'virsh pool-start' commands. While it could be argued that pool-start
doesn't need the flags, they could prove useful for someone trying to
do one command build --overwrite and start command processing or
essentially starting with a clean slate.
NB:
This patch is loosely based upon code originally authored by Osier
Yang that were not reviewed and pushed, see:
https://www.redhat.com/archives/libvir-list/2012-July/msg00497.html
Signed-off-by: John Ferlan <jferlan at redhat.com>
---
tools/virsh-pool.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++---
tools/virsh.pod | 25 ++++++++++++++++++-
2 files changed, 94 insertions(+), 4 deletions(-)
diff --git a/tools/virsh-pool.c b/tools/virsh-pool.c
index cb91cd3..1bb987d 100644
--- a/tools/virsh-pool.c
+++ b/tools/virsh-pool.c
@@ -47,6 +47,13 @@
.help = N_("file containing an XML pool description") \
}, \
+#define OPT_BUILD_COMMON \
+ {.name = "build", \
+ .type = VSH_OT_BOOL, \
+ .flags = 0, \
+ .help = N_("build the pool as normal") \
+ }, \
+
#define OPT_NO_OVERWRITE_COMMON \
{.name = "no-overwrite", \
.type = VSH_OT_BOOL, \
@@ -235,6 +242,9 @@ static const vshCmdInfo info_pool_create[] = {
static const vshCmdOptDef opts_pool_create[] = {
OPT_FILE_COMMON
+ OPT_BUILD_COMMON
+ OPT_NO_OVERWRITE_COMMON
+ OPT_OVERWRITE_COMMON
{.name = NULL}
};
@@ -246,15 +256,32 @@ cmdPoolCreate(vshControl *ctl, const vshCmd *cmd)
const char *from = NULL;
bool ret = true;
char *buffer;
+ bool build;
+ bool overwrite;
+ bool no_overwrite;
+ unsigned int flags = 0;
virshControlPtr priv = ctl->privData;
if (vshCommandOptStringReq(ctl, cmd, "file", &from) < 0)
return false;
+ build = vshCommandOptBool(cmd, "build");
+ overwrite = vshCommandOptBool(cmd, "overwrite");
+ no_overwrite = vshCommandOptBool(cmd, "no-overwrite");
+
+ VSH_EXCLUSIVE_OPTIONS_VAR(overwrite, no_overwrite);
+
+ if (build)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD;
+ if (overwrite)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD_OVERWRITE;
+ if (no_overwrite)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD_NO_OVERWRITE;
+
if (virFileReadAll(from, VSH_MAX_XML_FILE, &buffer) < 0)
return false;
- pool = virStoragePoolCreateXML(priv->conn, buffer, 0);
+ pool = virStoragePoolCreateXML(priv->conn, buffer, flags);
VIR_FREE(buffer);
if (pool != NULL) {
@@ -386,6 +413,9 @@ static const vshCmdInfo info_pool_create_as[] = {
static const vshCmdOptDef opts_pool_create_as[] = {
OPTS_POOL_COMMON_X_AS
+ OPT_BUILD_COMMON
+ OPT_NO_OVERWRITE_COMMON
+ OPT_OVERWRITE_COMMON
{.name = NULL}
};
@@ -397,8 +427,25 @@ cmdPoolCreateAs(vshControl *ctl, const vshCmd *cmd)
const char *name;
char *xml;
bool printXML = vshCommandOptBool(cmd, "print-xml");
+ bool build;
+ bool overwrite;
+ bool no_overwrite;
+ unsigned int flags = 0;
virshControlPtr priv = ctl->privData;
+ build = vshCommandOptBool(cmd, "build");
+ overwrite = vshCommandOptBool(cmd, "overwrite");
+ no_overwrite = vshCommandOptBool(cmd, "no-overwrite");
+
+ VSH_EXCLUSIVE_OPTIONS_VAR(overwrite, no_overwrite);
+
+ if (build)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD;
+ if (overwrite)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD_OVERWRITE;
+ if (no_overwrite)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD_NO_OVERWRITE;
+
if (!virshBuildPoolXML(ctl, cmd, &name, &xml))
return false;
@@ -406,7 +453,7 @@ cmdPoolCreateAs(vshControl *ctl, const vshCmd *cmd)
vshPrint(ctl, "%s", xml);
VIR_FREE(xml);
} else {
- pool = virStoragePoolCreateXML(priv->conn, xml, 0);
+ pool = virStoragePoolCreateXML(priv->conn, xml, flags);
VIR_FREE(xml);
if (pool != NULL) {
@@ -1657,6 +1704,9 @@ static const vshCmdInfo info_pool_start[] = {
static const vshCmdOptDef opts_pool_start[] = {
OPT_POOL_COMMON
+ OPT_BUILD_COMMON
+ OPT_NO_OVERWRITE_COMMON
+ OPT_OVERWRITE_COMMON
{.name = NULL}
};
@@ -1667,11 +1717,28 @@ cmdPoolStart(vshControl *ctl, const vshCmd *cmd)
virStoragePoolPtr pool;
bool ret = true;
const char *name = NULL;
+ bool build;
+ bool overwrite;
+ bool no_overwrite;
+ unsigned int flags = 0;
if (!(pool = virshCommandOptPool(ctl, cmd, "pool", &name)))
return false;
- if (virStoragePoolCreate(pool, 0) == 0) {
+ build = vshCommandOptBool(cmd, "build");
+ overwrite = vshCommandOptBool(cmd, "overwrite");
+ no_overwrite = vshCommandOptBool(cmd, "no-overwrite");
+
+ VSH_EXCLUSIVE_OPTIONS_VAR(overwrite, no_overwrite);
+
+ if (build)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD;
+ if (overwrite)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD_OVERWRITE;
+ if (no_overwrite)
+ flags |= VIR_STORAGE_POOL_CREATE_WITH_BUILD_NO_OVERWRITE;
+
+ if (virStoragePoolCreate(pool, flags) == 0) {
vshPrint(ctl, _("Pool %s started\n"), name);
} else {
vshError(ctl, _("Failed to start pool %s"), name);
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 21ae4a3..107fc32 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -3181,15 +3181,23 @@ specified or it's been determined that the disk doesn't already have one,
by the pool source format type or "dos" if not specified for the pool.
=item B<pool-create> I<file>
+[I<--build>] [[I<--overwrite>] | [I<--no-overwrite>]]
Create and start a pool object from the XML I<file>.
+[I<--build>] [[I<--overwrite>] | [I<--no-overwrite>]] perform a
+B<pool-build> after creation in order to remove the need for a
+follow-up command to build the pool. The I<--overwrite> and
+I<--no-overwrite> flags follow the same rules as B<pool-build>. If
+just I<--build> is provided, then B<pool-build> is called with no flags.
+
=item B<pool-create-as> I<name> I<type> [I<--print-xml>]
[I<--source-host hostname>] [I<--source-path path>] [I<--source-dev path>]
[I<--source-name name>] [I<--target path>] [I<--source-format format>]
[I<--auth-type authtype> I<--auth-username username> I<--secret-usage usage>]
[[I<--adapter-name name>] | [I<--adapter-wwnn> I<--adapter-wwpn>]
[I<--adapter-parent parent>]]
+[I<--build>] [[I<--overwrite>] | [I<--no-overwrite>]]
Create and start a pool object I<name> from the raw parameters. If
@@ -3233,6 +3241,12 @@ the wwnn and wwpn to be used for the fc_host adapter type pool. The parent
optionally provides the name of the scsi_hostN node device to be used for
the vHBA.
+[I<--build>] [[I<--overwrite>] | [I<--no-overwrite>]] perform a
+B<pool-build> after creation in order to remove the need for a
+follow-up command to build the pool. The I<--overwrite> and
+I<--no-overwrite> flags follow the same rules as B<pool-build>. If
+just I<--build> is provided, then B<pool-build> is called with no flags.
+
=item B<pool-define> I<file>
Define an inactive persistent storage pool or modify an existing persistent one
@@ -3250,7 +3264,8 @@ I<--print-xml> is specified, then print the XML of the pool object
without defining the pool. Otherwise, the pool has the specified
I<type>.
-Use the same arguments as B<pool-create-as>.
+Use the same arguments as B<pool-create-as>, except for the I<--build>,
+I<--overwrite>, and I<--no-overwrite> options.
=item B<pool-destroy> I<pool-or-uuid>
@@ -3326,9 +3341,17 @@ Convert the I<uuid> to a pool name.
Refresh the list of volumes contained in I<pool>.
=item B<pool-start> I<pool-or-uuid>
+[I<--build>] [[I<--overwrite>] | [I<--no-overwrite>]]
Start the storage I<pool>, which is previously defined but inactive.
+[I<--build>] [[I<--overwrite>] | [I<--no-overwrite>]] perform a
+B<pool-build> prior to B<pool-start> to ensure the pool environment is
+in an expected state rather than needing to run the build command prior
+to startup. The I<--overwrite> and I<--no-overwrite> flags follow the
+same rules as B<pool-build>. If just I<--build> is provided, then
+B<pool-build> is called with no flags.
+
B<Note>: A storage pool that relies on remote resources such as an
"iscsi" or a (v)HBA backed "scsi" pool may need to be refreshed multiple
times in order to have all the volumes detected (see B<pool-refresh>).
--
2.5.0
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