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b21795bb5b
This commit adds a new example to illustrate peer to peer domain migration with virDomainMigrateToURI. Signed-off-by: Sahid Orentino Ferdjaoui <sahid.ferdjaoui@cloudwatt.com>
90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*
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* dommigrate.c: This file is largely inspired from hellolibvirt and
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* contains a trivial example that illustrate p2p domain
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* migration with libvirt.
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*
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* Copyright (C) 2014 Cloudwatt
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Sahid Orentino Ferdjaoui <sahid.ferdjaoui@cloudwatt.com>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <libvirt/libvirt.h>
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#include <libvirt/virterror.h>
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static int
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usage(char *prgn, int ret)
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{
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printf("Usage: %s <src uri> <dst uri> <domain name>\n", prgn);
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return ret;
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}
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int
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main(int argc, char *argv[])
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{
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char *src_uri, *dst_uri, *domname;
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int ret = 0;
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virConnectPtr conn = NULL;
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virDomainPtr dom = NULL;
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if (argc < 4) {
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ret = usage(argv[0], 1);
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goto out;
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}
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src_uri = argv[1];
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dst_uri = argv[2];
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domname = argv[3];
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printf("Attempting to connect to the source hypervisor...\n");
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conn = virConnectOpenAuth(src_uri, virConnectAuthPtrDefault, 0);
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if (!conn) {
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ret = 1;
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fprintf(stderr, "No connection to the source hypervisor: %s.\n",
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virGetLastErrorMessage());
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goto out;
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}
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printf("Attempting to retrieve domain %s...\n", domname);
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dom = virDomainLookupByName(conn, domname);
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if (!dom) {
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fprintf(stderr, "Failed to find domain %s.\n", domname);
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goto cleanup;
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}
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printf("Attempting to migrate %s to %s...\n", domname, dst_uri);
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if ((ret = virDomainMigrateToURI(dom, dst_uri,
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VIR_MIGRATE_PEER2PEER,
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NULL, 0)) != 0) {
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fprintf(stderr, "Failed to migrate domain %s.\n", domname);
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goto cleanup;
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}
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printf("Migration finished with success.\n");
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cleanup:
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if (dom != NULL)
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virDomainFree(dom);
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if (conn != NULL)
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virConnectClose(conn);
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out:
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return ret;
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}
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