libvirt/src/lxc/lxc_domain.h
ik.nitk c27553b6e2 lxc: Inherit namespace feature
This patch adds feature for lxc containers to inherit namespaces.
This is very similar to what lxc-tools or docker provides.  Look
for "man lxc-start" and you will find that you can pass command
args as [ --share-[net|ipc|uts] name|pid ]. Or check out docker
networking option in which you can give --net=container:NAME_or_ID
as an option for sharing +namespace.

>From this patch you can add extra libvirt option to share
namespace in following way.

 <lxc:namespace>
   <lxc:sharenet type='netns' value='red'/>
   <lxc:shareipc type='pid' value='12345'/>
   <lxc:shareuts type='name' value='container1'/>
 </lxc:namespace>

The netns option is specific to sharenet. It can be used to
inherit from existing network namespace.

Co-authored: Daniel P. Berrange <berrange@redhat.com>
2015-08-26 11:28:30 +01:00

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2.2 KiB
C

/*
* Copyright (C) 2010-2012 Red Hat, Inc.
* Copyright IBM Corp. 2008
*
* lxc_domain.h: LXC domain helpers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef __LXC_DOMAIN_H__
# define __LXC_DOMAIN_H__
# include "vircgroup.h"
# include "lxc_conf.h"
# include "lxc_monitor.h"
typedef enum {
VIR_LXC_DOMAIN_NAMESPACE_SHARENET = 0,
VIR_LXC_DOMAIN_NAMESPACE_SHAREIPC,
VIR_LXC_DOMAIN_NAMESPACE_SHAREUTS,
VIR_LXC_DOMAIN_NAMESPACE_LAST,
} virLXCDomainNamespace;
typedef enum {
VIR_LXC_DOMAIN_NAMESPACE_SOURCE_NONE,
VIR_LXC_DOMAIN_NAMESPACE_SOURCE_NAME,
VIR_LXC_DOMAIN_NAMESPACE_SOURCE_PID,
VIR_LXC_DOMAIN_NAMESPACE_SOURCE_NETNS,
VIR_LXC_DOMAIN_NAMESPACE_SOURCE_LAST,
} virLXCDomainNamespaceSource;
VIR_ENUM_DECL(virLXCDomainNamespace)
VIR_ENUM_DECL(virLXCDomainNamespaceSource)
typedef struct _lxcDomainDef lxcDomainDef;
typedef lxcDomainDef *lxcDomainDefPtr;
struct _lxcDomainDef {
int ns_source[VIR_LXC_DOMAIN_NAMESPACE_LAST]; /* virLXCDomainNamespaceSource */
char *ns_val[VIR_LXC_DOMAIN_NAMESPACE_LAST];
};
typedef struct _virLXCDomainObjPrivate virLXCDomainObjPrivate;
typedef virLXCDomainObjPrivate *virLXCDomainObjPrivatePtr;
struct _virLXCDomainObjPrivate {
virLXCMonitorPtr monitor;
bool doneStopEvent;
int stopReason;
bool wantReboot;
pid_t initpid;
virCgroupPtr cgroup;
};
extern virDomainXMLNamespace virLXCDriverDomainXMLNamespace;
extern virDomainXMLPrivateDataCallbacks virLXCDriverPrivateDataCallbacks;
extern virDomainDefParserConfig virLXCDriverDomainDefParserConfig;
#endif /* __LXC_DOMAIN_H__ */