<listitem>
<para>
The only allowed values are 0 and 1. Set this to 1 to destroy a
- container on shutdown.
+ container on shutdown.
</para>
</listitem>
</varlistentry>
the <option>lxc.net.[i].veth.pair</option> option (except for
unprivileged containers where this option is ignored for security
reasons).
+
+ Static routes can be added on the host pointing to the container using the
+ <option>lxc.net.[i].veth.ipv4.route</option> and
+ <option>lxc.net.[i].veth.ipv6.route</option> options.
+ Several lines specify several routes.
+ The route is in format x.y.z.t/m, eg. 192.168.1.0/24.
</para>
<para>
different macvlan on the same upper device. The accepted
modes are <option>private</option>, <option>vepa</option>,
<option>bridge</option> and <option>passthru</option>.
- In <option>private</option> mode, the device never
+ In <option>private</option> mode, the device never
communicates with any other device on the same upper_dev (default).
In <option>vepa</option> mode, the new Virtual Ethernet Port
Aggregator (VEPA) mode, it assumes that the adjacent
mode is possible for one physical interface.
</para>
+ <para>
+ <option>ipvlan:</option> an ipvlan interface is linked
+ with the interface specified by
+ the <option>lxc.net.[i].link</option> and assigned to
+ the container.
+ <option>lxc.net.[i].ipvlan.mode</option> specifies the
+ mode the ipvlan will use to communicate between
+ different ipvlan on the same upper device. The accepted
+ modes are <option>l3</option>, <option>l3s</option> and
+ <option>l2</option>. It defaults to <option>l3</option> mode.
+ In <option>l3</option> mode TX processing up to L3 happens on the stack instance
+ attached to the slave device and packets are switched to the stack instance of the
+ master device for the L2 processing and routing from that instance will be
+ used before packets are queued on the outbound device. In this mode the slaves
+ will not receive nor can send multicast / broadcast traffic.
+ In <option>l3s</option> mode TX processing is very similar to the L3 mode except that
+ iptables (conn-tracking) works in this mode and hence it is L3-symmetric (L3s).
+ This will have slightly less performance but that shouldn't matter since you are
+ choosing this mode over plain-L3 mode to make conn-tracking work.
+ In <option>l2</option> mode TX processing happens on the stack instance attached to
+ the slave device and packets are switched and queued to the master device to send
+ out. In this mode the slaves will RX/TX multicast and broadcast (if applicable) as well.
+ <option>lxc.net.[i].ipvlan.isolation</option> specifies the isolation mode.
+ The accepted isolation values are <option>bridge</option>,
+ <option>private</option> and <option>vepa</option>.
+ It defaults to <option>bridge</option>.
+ In <option>bridge</option> isolation mode slaves can cross-talk among themselves
+ apart from talking through the master device.
+ In <option>private</option> isolation mode the port is set in private mode.
+ i.e. port won't allow cross communication between slaves.
+ In <option>vepa</option> isolation mode the port is set in VEPA mode.
+ i.e. port will offload switching functionality to the external entity as
+ described in 802.1Qbg.
+ </para>
+
<para>
<option>phys:</option> an already existing interface
specified by the <option>lxc.net.[i].link</option> is
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ <option>lxc.net.[i].l2proxy</option>
+ </term>
+ <listitem>
+ <para>
+ Controls whether layer 2 IP neighbour proxy entries will be added to the
+ lxc.net.[i].link interface for the IP addresses of the container.
+ Can be set to 0 or 1. Defaults to 0.
+ When used with IPv4 addresses, the following sysctl values need to be set:
+ net.ipv4.conf.[link].forwarding=1
+ When used with IPv6 addresses, the following sysctl values need to be set:
+ net.ipv6.conf.[link].proxy_ndp=1
+ net.ipv6.conf.[link].forwarding=1
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term>
<option>lxc.net.[i].mtu</option>
interface (as specified by the
<option>lxc.net.[i].link</option> option) and use that as
the gateway. <option>auto</option> is only available when
- using the <option>veth</option> and
- <option>macvlan</option> network types.
+ using the <option>veth</option>,
+ <option>macvlan</option> and <option>ipvlan</option> network types.
+ Can also have the special value of <option>dev</option>,
+ which means to set the default gateway as a device route.
+ This is primarily for use with layer 3 network modes, such as IPVLAN.
</para>
</listitem>
</varlistentry>
interface (as specified by the
<option>lxc.net.[i].link</option> option) and use that as
the gateway. <option>auto</option> is only available when
- using the <option>veth</option> and
- <option>macvlan</option> network types.
+ using the <option>veth</option>,
+ <option>macvlan</option> and <option>ipvlan</option> network types.
+ Can also have the special value of <option>dev</option>,
+ which means to set the default gateway as a device route.
+ This is primarily for use with layer 3 network modes, such as IPVLAN.
</para>
</listitem>
</varlistentry>
<listitem>
<para>
LXC_NET_TYPE: the network type. This is one of the valid
- network types listed here (e.g. 'macvlan', 'veth').
+ network types listed here (e.g. 'vlan', 'macvlan', 'ipvlan', 'veth').
</para>
</listitem>
<listitem>
<para>
LXC_NET_TYPE: the network type. This is one of the valid
- network types listed here (e.g. 'macvlan', 'veth').
+ network types listed here (e.g. 'vlan', 'macvlan', 'ipvlan', 'veth').
</para>
</listitem>
When manually specifying a size for the log file the value should
be a power of 2 when converted to bytes. Valid size prefixes are
'KB', 'MB', 'GB'. (Note that all conversions are based on multiples
- of 1024. That means 'KB' == 'KiB', 'MB' == 'MiB', 'GB' == 'GiB'.
+ of 1024. That means 'KB' == 'KiB', 'MB' == 'MiB', 'GB' == 'GiB'.
Additionally, the case of the suffix is ignored, i.e. 'kB', 'KB' and
'Kb' are treated equally.)
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ <option>lxc.rootfs.managed</option>
+ </term>
+ <listitem>
+ <para>
+ Set this to 0 to indicate that LXC is not managing the
+ container storage, then LXC will not modify the
+ container storage. The default is 1.
+ </para>
+ </listitem>
+ </varlistentry>
+
</variablelist>
</refsect2>
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ <option>lxc.cgroup.relative</option>
+ </term>
+ <listitem>
+ <para>
+ Set this to 1 to instruct LXC to never escape to the
+ root cgroup. This makes it easy for users to adhere to
+ restrictions enforced by cgroup2 and
+ systemd. Specifically, this makes it possible to run LXC
+ containers as systemd services.
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect2>
</para>
<para>
- To inherit the namespace from another container set the
+ To inherit the namespace from another container set the
<option>lxc.namespace.share.[namespace identifier]</option> to the name of
the container, e.g. <option>lxc.namespace.share.pid=c3</option>.
</para>
process wants to inherit the other's network namespace it usually
needs to inherit the user namespace as well.
</para>
+
+ <para>
+ Note that without careful additional configuration of an LSM,
+ sharing user+pid namespaces with a task may allow that task to
+ escalate privileges to that of the task calling liblxc.
+ </para>
</listitem>
</varlistentry>
</variablelist>
</term>
<listitem>
<para>
- Specify the kernel parameters to be set. The parameters available
+ Specify the kernel parameters to be set. The parameters available
are those listed under /proc/sys/.
Note that not all sysctls are namespaced. Changing Non-namespaced
sysctls will cause the system-wide setting to be modified.
<refentrytitle><command>sysctl</command></refentrytitle>
<manvolnum>8</manvolnum>
</citerefentry>.
- If used with no value, lxc will clear the parameters specified up
+ If used with no value, lxc will clear the parameters specified up
to this point.
</para>
</listitem>
are nesting containers and are already confined), then use
</para>
<programlisting>lxc.apparmor.profile = unchanged</programlisting>
+ <para>
+ If you instruct LXC to generate the apparmor profile,
+ then use
+ </para>
+ <programlisting>lxc.apparmor.profile = generated</programlisting>
</listitem>
</varlistentry>
<varlistentry>
</para>
</listitem>
</varlistentry>
+
+ <varlistentry>
+ <term>
+ <option>lxc.apparmor.allow_nesting</option>
+ </term>
+ <listitem>
+ <para>
+ If set this to 1, causes the following changes. When
+ generated apparmor profiles are used, they will contain
+ the necessary changes to allow creating a nested
+ container. In addition to the usual mount points,
+ <filename>/dev/.lxc/proc</filename>
+ and <filename>/dev/.lxc/sys</filename> will contain
+ procfs and sysfs mount points without the lxcfs
+ overlays, which, if generated apparmor profiles are
+ being used, will not be read/writable directly.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>
+ <option>lxc.apparmor.raw</option>
+ </term>
+ <listitem>
+ <para>
+ A list of raw AppArmor profile lines to append to the
+ profile. Only valid when using generated profiles.
+ </para>
+ </listitem>
+ </varlistentry>
+
</variablelist>
</refsect2>
2
blacklist
mknod errno 0
+ ioctl notify
</programlisting>
+ <para>
+ Specifying "errno" as action will cause LXC to register a seccomp filter
+ that will cause a specific errno to be returned to the caller. The errno
+ value can be specified after the "errno" action word.
+ </para>
+
+ <para>
+ Specifying "notify" as action will cause LXC to register a seccomp
+ listener and retrieve a listener file descriptor from the kernel. When a
+ syscall is made that is registered as "notify" the kernel will generate a
+ poll event and send a message over the file descriptor. The caller can
+ read this message, inspect the syscalls including its arguments. Based on
+ this information the caller is expected to send back a message informing
+ the kernel which action to take. Until that message is sent the kernel
+ will block the calling process. The format of the messages to read and
+ sent is documented in seccomp itself.
+ </para>
+
<variablelist>
<varlistentry>
<term>
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ <option>lxc.seccomp.notify.proxy</option>
+ </term>
+ <listitem>
+ <para>
+ Specify a unix socket to which LXC will connect and forward
+ seccomp events to. The path must by in the form
+ unix:/path/to/socket or unix:@socket. The former specifies a
+ path-bound unix domain socket while the latter specifies an
+ abstract unix domain socket.
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect2>
projects / mirror_lxc.git / blobdiff