[libvirt] [PATCH 5/5] parallels: create container from existing image
It's possible to create a container with existing
disk image as root filesystem. You need to remove
existing disks from PCS VM config and then add a new
one, pointing to your image. And then call PrlVm_RegEx
with PRNVM_PRESERVE_DISK flag.
With this patch you can create a container with the
following new domain XML config:
<filesystem type='file' accessmode='passthrough'>
<driver type='ploop' format='ploop'/>
<source file='/path-to-image'/>
<target dir='/'/>
</filesystem>
Signed-off-by: Dmitry Guryanov <dguryanov(a)parallels.com>
---
src/parallels/parallels_sdk.c | 35 ++++++++++++++++++++++++-----------
1 file changed, 24 insertions(+), 11 deletions(-)
diff --git a/src/parallels/parallels_sdk.c b/src/parallels/parallels_sdk.c
index 7b4e1bb..9406746 100644
--- a/src/parallels/parallels_sdk.c
+++ b/src/parallels/parallels_sdk.c
@@ -2890,14 +2890,26 @@ prlsdkCreateCt(virConnectPtr conn, virDomainDefPtr def)
PRL_HANDLE result = PRL_INVALID_HANDLE;
PRL_RESULT pret;
int ret = -1;
-
- if (def->nfss && (def->nfss > 1 ||
- def->fss[0]->type != VIR_DOMAIN_FS_TYPE_TEMPLATE)) {
-
- virReportError(VIR_ERR_INVALID_ARG, "%s",
- _("There must be no more than 1 template FS for "
- "container creation"));
- return -1;
+ int useTemplate = 0;
+ unsigned int i;
+
+ if (def->nfss > 1) {
+ /* Check all filesystems */
+ for (i = 0; i < def->nfss; i++) {
+ if (def->fss[i]->type != VIR_DOMAIN_FS_TYPE_FILE) {
+ virReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("Unsupported filesystem type."));
+ return -1;
+ }
+ }
+ } else if (def->nfss == 1) {
+ if (def->fss[0]->type == VIR_DOMAIN_FS_TYPE_TEMPLATE) {
+ useTemplate = 1;
+ } else if (def->fss[0]->type != VIR_DOMAIN_FS_TYPE_FILE) {
+ virReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("Unsupported filesystem type."));
+ return -1;
+ }
}
confParam.nVmType = PVT_CT;
@@ -2911,22 +2923,23 @@ prlsdkCreateCt(virConnectPtr conn, virDomainDefPtr def)
pret = PrlResult_GetParamByIndex(result, 0, &sdkdom);
prlsdkCheckRetGoto(pret, cleanup);
- if (def->nfss == 1) {
+ if (useTemplate) {
pret = PrlVmCfg_SetOsTemplate(sdkdom, def->fss[0]->src);
prlsdkCheckRetGoto(pret, cleanup);
+
}
ret = prlsdkDoApplyConfig(sdkdom, def);
if (ret)
goto cleanup;
- job = PrlVm_RegEx(sdkdom, "", PACF_NON_INTERACTIVE_MODE);
+ job = PrlVm_RegEx(sdkdom, "",
PACF_NON_INTERACTIVE_MODE|PRNVM_PRESERVE_DISK);
if (PRL_FAILED(waitJob(job, privconn->jobTimeout)))
ret = -1;
cleanup:
PrlHandle_Free(sdkdom);
- return -1;
+ return ret;
}
int
--
2.1.0