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d7415aea48
This commit adds lxc-start-ephemeral as a python script using the new python-lxc API. This script is somewhat similar to lxc-clone except that it uses overlayfs or aufs to provide an overlay on top of the source container. It also allows the user to directly run a command in the container using SSH and can fetch the IP address from the container when starting the container in the background. The initial work on lxc-start-ephemeral was done by Serge Hallyn in Ubuntu, this is a re-implementation of it using python and the new LXC hooks. Compared to the shell implementation, there are three notable differences: - When starting without a command, lxc-start-ephemeral now attaches to tty1 - When starting in the background (-d), the name and IP of the container is shown on screen. - A new "-k" option is added, allowing the user to keep the ephemeral container after shutdown. This turns off the tmpfs backend and sets up the hooks so that the container can be started/stopped multiple times. Signed-off-by: Stéphane Graber <stgraber@ubuntu.com> |
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|---|---|---|
| config | ||
| doc | ||
| src | ||
| templates | ||
| .gitignore | ||
| AUTHORS | ||
| autogen.sh | ||
| configure.ac | ||
| CONTRIBUTING | ||
| COPYING | ||
| INSTALL | ||
| lxc.pc.in | ||
| lxc.spec.in | ||
| MAINTAINERS | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| RELEASE-NOTES | ||
| runapitests.sh | ||
| TODO | ||
Please see the COPYING file for details on copying and usage.
Please refer to the INSTALL file for instructions on how to build.
What is lxc:
The container technology is actively being pushed into the mainstream linux
kernel. It provides the resource management through the control groups aka
process containers and resource isolation through the namespaces.
The linux containers, lxc, aims to use these new functionnalities to pro-
vide an userspace container object which provides full resource isolation
and resource control for an applications or a system.
The first objective of this project is to make the life easier for the ker-
nel developers involved in the containers project and especially to con-
tinue working on the Checkpoint/Restart new features. The lxc is small
enough to easily manage a container with simple command lines and complete
enough to be used for other purposes.
Using lxc:
Refer the lxc* man pages (generated from doc/* files)
Downloading the current source code:
Source for the latest released version can always be downloaded from
http://lxc.sourceforge.net/download/lxc
You can browse the up to the minute source code and change history online.
http://lxc.git.sourceforge.net
For detailed build instruction refer to INSTALL and man lxc man page
but a short command line should work:
./configure && make && sudo make install && sudo lxc-setcap
preceded by ./autogen.sh if configure do not exist yet.
Getting help:
when you find you need help, you can check out one of the two
lxc mailing list archives and register if interested:
https://lists.sourceforge.net/lists/listinfo/lxc-devel
https://lists.sourceforge.net/lists/listinfo/lxc-users
Portability:
lxc is still in development, so the command syntax and the API can
change. The version 1.0.0 will be the frozen version.
lxc is developed and tested on Linux since kernel mainline version 2.6.27
(without network) and 2.6.29 with network isolation.
is compiled with gcc, and supports i686, x86_64, ppc, ppc64, S390 archi.
AUTHOR
Daniel Lezcano <daniel.lezcano@free.fr>
Seccomp with LXC
----------------
To restrict a container with seccomp, you must specify a profile which is
basically a whitelist of system calls it may execute. In the container
config file, add a line like
lxc.seccomp = /var/lib/lxc/q1/seccomp.full
I created a usable (but basically worthless) seccomp.full file using
cat > seccomp.full << EOF
1
whitelist
EOF
for i in `seq 0 300`; do
echo $i >> secomp.full
done
for i in `seq 1024 1079`; do
echo $i >> seccomp.full
done
-- Serge Hallyn <serge.hallyn@ubuntu.com> Fri, 27 Jul 2012 15:47:02 +0600