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storage: Allow parsing of RBD backing strings when building backing chain

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As we now have a common function to parse backing store string for RBD
backing store we can reuse it in the backing store walker so that we
don't fail on files backed by RBD storage.

This patch also adds a few tests to verify that the parsing works as
expected.
This commit is contained in:
Peter Krempa
2014-11-21 14:37:02 +01:00
parent b327df87be
commit 930b77598b
2 changed files with 48 additions and 1 deletions
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tests/virstoragetest.c
+43
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@@ -972,6 +972,49 @@ mymain(void)
(&wrap, &qcow2), EXP_WARN,
(&wrap, &qcow2), ALLOW_PROBE | EXP_WARN);
/* Rewrite qcow2 to use an rbd: protocol as backend */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
"-F", "raw", "-b", "rbd:testshare",
"qcow2", NULL);
if (virCommandRun(cmd, NULL) < 0)
ret = -1;
qcow2.expBackingStoreRaw = "rbd:testshare";
/* Qcow2 file with backing protocol instead of file */
testFileData rbd1 = {
.path = "testshare",
.type = VIR_STORAGE_TYPE_NETWORK,
.format = VIR_STORAGE_FILE_RAW,
.protocol = VIR_STORAGE_NET_PROTOCOL_RBD,
};
TEST_CHAIN(19, absqcow2, VIR_STORAGE_FILE_QCOW2,
(&qcow2, &rbd1), EXP_PASS,
(&qcow2, &rbd1), ALLOW_PROBE | EXP_PASS);
/* Rewrite qcow2 to use an rbd: protocol as backend */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
"-F", "raw", "-b", "rbd:testshare:id=asdf:mon_host=example.com",
"qcow2", NULL);
if (virCommandRun(cmd, NULL) < 0)
ret = -1;
qcow2.expBackingStoreRaw = "rbd:testshare:id=asdf:mon_host=example.com";
/* Qcow2 file with backing protocol instead of file */
testFileData rbd2 = {
.path = "testshare",
.type = VIR_STORAGE_TYPE_NETWORK,
.format = VIR_STORAGE_FILE_RAW,
.protocol = VIR_STORAGE_NET_PROTOCOL_RBD,
.secret = "asdf",
.hostname = "example.com",
};
TEST_CHAIN(20, absqcow2, VIR_STORAGE_FILE_QCOW2,
(&qcow2, &rbd2), EXP_PASS,
(&qcow2, &rbd2), ALLOW_PROBE | EXP_PASS);
/* Rewrite wrap and qcow2 back to 3-deep chain, absolute backing */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",