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* lxc: include sched.h to have a declaration of clone().lxc-0.8.0-rc2-gentooDiego Elio Pettenò2012-08-031-0/+1
| | | | This avoids an implicit declaration.
* build: make sure to expand all variables that are substituted.Diego Elio Pettenò2012-08-031-4/+4
| | | | This fixes lxc-sshd still referring to '${libdir}'.
* Build: get __NR_setns from asm/unistd.h, not kernel sourcelxc-0.8.0-rc2-gentoo-1Kevin Pyle2012-07-203-54/+4
| | | | | | | | | | | | Recent kernel headers suitable for building glibc are sufficient to provide setns, so use that in preference to a full kernel source tree. This is a prototype which may not be suitable on all distributions, but which works well on recent Gentoo systems. Conflicts: src/lxc/Makefile.am
* Workaround requirement to use the realname of the block device.Diego Elio Pettenò2012-07-202-17/+22
| | | | | | | | Instead of checking always the source path, check the source path if mounting a directory, and the mount path if mounting a block device or file. Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
* build: use libtool for linking the library, and link lxc-init statically.Diego Elio Pettenò2012-07-202-29/+8
| | | | | | | | | | | | | | | The shared object versioning on the library (soname) was completely wrong, as the ABI doesn't seem to be guaranteed between one version and the other, so proposing all of them as .so.0 is very wrong. Furthermore you generally want lxc-init static so that you don't have to add (or have a compatible version of) libcap and liblxc within a container you want to use lxc-execute with. To solve the issue, use the good old libtool to take care of the library building, and pass -all-static to the lxc-init linking stage. Also drop the manual rpath handling, and leave it to libtool to manage.
* lxc-0.8.0-rc2lxc-0.8.0-rc2Daniel Lezcano2012-03-201-1/+1
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* Update manpages to reflect some updated options.Serge Hallyn2012-03-194-3/+112
| | | | | | | (which reminds me a lxc-clone manpage still needs to be written) Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* ubuntu templates cleanupsSerge Hallyn2012-03-192-8/+21
| | | | | | | | | | 1. fix inconsistent use of '--auth-key' (not --auth_key) which broke their usage 2. add --debug option to lxc-ubuntu (which does set -x to show what broke) (idea from Idea from lifeless and benji) 3. fix incorrect assumption about group with -b option. User's default group may not be the same as username. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* do check for utmp checking at the right timeSerge Hallyn2012-03-191-5/+9
| | | | | | | | | | | | | | We were doing the check for whether we need to watch utmp from a thread cloned from that which will actually do the utmp watching. As a result, the utmp file was always being watched, even if it didn't need to be. Move the check to the parent thread. Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/948623 Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* fix cached rootfs update* fix rootfs path* add handling of systemdInformatiQ2012-03-051-8/+27
| | | | | Signed-off-by: InformatiQ <rhanna@informatiq.org> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* cgroups: fix broken support for deprecated ns cgroupSerge Hallyn2012-03-052-25/+41
| | | | | | | | | | | | | | | | | | when using ns cgroup, use /cgroup/<init-cgroup> rather than /cgroup/<init-cgroup>/lxc At least lxc-start, lxc-stop, lxc-cgroup, lxc-console and lxc-ls work with this patch. I've tested this in a 2.6.35 kernel with ns cgroup, and in a 3.2 kernel without ns cgroup. Note also that because of the check for container reboot support, if we're using the ns cgroup we now end up with a /cgroup/<container>/2 cgroup created, empty, by the clone(CLONE_NEWPID). I'm really not sure how much time we want to spend cleaning such things up since ns cgroup is deprecated in kernel. Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-0.8.0-rc1Daniel Lezcano2012-03-021-1/+1
| | | | Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* fix lxc-attach.sgml.in spurious variable listDaniel Lezcano2012-03-021-2/+0
| | | | Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
* fix sparc architecture for autoconfDaniel Lezcano2012-02-261-0/+1
| | | | | Reported-by : Denny Schierz <linuxmail@4lin.net> Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
* If a container is already running, say so in error msgs.Serge Hallyn2012-02-261-1/+6
| | | | | | | | Otherwise there is no clear indication to the user why the container startup failed. Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* update ubuntu templates to provide macaddr and moreSerge Hallyn2012-02-262-24/+98
| | | | | | | | | | Add a macaddr if precisely one veth is specified but no hwaddr. Allow specifying ssh authkeys. In cloud template, copy locales by default and allow a tarball to be specified. Signed-off-by: Ben Howard <ben.howard@canonical.com> Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-ubuntu: fix obscure argumentsSerge Hallyn2012-02-261-38/+13
| | | | | | | | | | 1. --path is meant to be passed by lxc-create, but should not be passed in by users. Don't advertise it in --help. 2. --clean syntax ends up not making much sense. Get rid of it, and add '--flush-cache' option instead. Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* add option to close inherited fdsSerge Hallyn2012-02-267-6/+25
| | | | | | | | The option is implied by '-d', because the admin won't see the warning message. Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* ubuntu template changesSerge Hallyn2012-02-261-17/+31
| | | | | | | | | | | | Author: Stéphane Graber <stgraber@ubuntu.com> Use ubuntu/ubuntu instead of root/root by default. Stop removing tty[56].conf in Precise. Stop messing with dhclient.conf. Set devttydir on Precise to /dev/lxc to allow for clean upgrades. Signed-off-by: Stéphane Graber <stgraber@ubuntu.com> Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* add lxc.devttydir config variableSerge Hallyn2012-02-263-19/+150
| | | | | | | | If set, then the console and ttys will be bind-mounted not over /dev/console, but /dev/<ttydir>/console and then symlinked from there to /dev/console. Signed-off-by: Serge Hallyn <serge@hallyn.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-clone: support btrfs and clean up safelyUbuntu2012-02-261-120/+127
| | | | | | | btrfs support from Scott Moser. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* add btrfs support to lxc-createUbuntu2012-02-261-15/+34
| | | | | | | From Scott Moser. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* remove unused fddir variableSerge Hallyn2012-02-261-3/+0
| | | | | | | Thanks to dlezcano for spotting this. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-init: use INFO when failed to mount /dev/shmSerge Hallyn2012-02-261-1/+1
| | | | | Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Add ubuntu-cloud templateSerge Hallyn2012-02-263-0/+252
| | | | | | | | This is a new template to create containers based on the ubuntu cloud images, rather than using debootstrap. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Don't install lxcguest in precise (and higher) releasesSerge Hallyn2012-02-261-1/+2
| | | | | | | | lxcguest is no longer needed, as precise should boot in a container un-modified. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* silence netstat warnings in lxc-lsSerge Hallyn2012-02-261-1/+1
| | | | | | | | | netstat -x sometimes spits errors to stderr like: warning, got bogus unix line. Shut those up as they don't help lxc-ls. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* fix reboot support detectionSerge Hallyn2012-02-261-14/+52
| | | | | | | | | In order for reboot(LINUX_REBOOT_CMD_CADON) to detect whether container reboot is supported, it must be done in a non-init pid namespace. Fix that. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* if lxc-init can't mount /dev/shm, don't fail.Serge Hallyn2012-02-261-1/+2
| | | | | | | | | | The 'lxc-init' (a lightweight init process used by lxc-execute in place of upstart etc) tries to mount /dev/shm during startup. If that fails (for instance /dev/shm does not exist) then it aborts execution and returns -1. This is unreasonable as very few applications actually need /dev/shm. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Don't raise error if container didn't sys_rebootSerge Hallyn2012-02-261-16/+19
| | | | | | | | | | | Don't call it an error if a container exits without calling sys_reboot. Particularly since that will almost always be the case with lxc-execute. This fixes a regression introduced in commit "49296e2ebfe7c5f9d6ebafbb54f5c5e56a0cc085: support proper container reboot" Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-ubuntu: Support for building a container of a foreign architectureSerge Hallyn2012-02-261-27/+74
| | | | | | | | | | | Support building a container of a foreign architecture if qemu-user-static is installed. This is done by installing some packages of the host architecture in the container using multi-arch. Author: Stéphane Graber <stgraber@ubuntu.com> Signed-off-by: Stéphane Graber <stgraber@ubuntu.com> Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-start: exit early and cleanly if we have insufficient privsSerge Hallyn2012-02-263-0/+47
| | | | | Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* recursively delete cgroups on container shutdownSerge Hallyn2012-02-261-1/+44
| | | | | | | | If a container has created its own cgroups, i.e. by running libvirtd, then if we don't delete all child cgroups, then the rmdir will fail. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* fix lxc-netstat for nested cgroupsSerge Hallyn2012-02-261-2/+12
| | | | | | | | | | | Use the correct path for the container's cgroup task file. Also exit out early and cleanly if the container is not running, and bind-mount /proc/$pid/net with '-n' to keep the entry out of mtab, else the mtab entry will never go away. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* support proper container rebootSerge Hallyn2012-02-262-7/+55
| | | | | | | | | | | | This patch looks for Daniel's kernel patch allowing the lxc monitor to tell container reboot from shutdown based on the exit signal. If that patch is not there, utmp monitoring is used. Otherwise, it only looks for the signal. Note that the 'conf->need_utmp_watch' is technically not necessary, as there is no harm in watching the utmp file. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-create: fix error with lvmSerge Hallyn2012-02-261-1/+1
| | | | | | | | when --lvname is given, use that for lvcreate instead of using lxc_name, which is wrong. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-clone.in: define localstatedir, as @LXCPATH@ might be defined in terms of itSerge Hallyn2012-02-261-0/+1
| | | | | Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* add lvm support to lxc-createSerge Hallyn2012-02-265-14/+126
| | | | | | | | | | | | | 1. Some templates copy the cached pristine rootfs using 'cp a b' where b is $lxc_path/$name/rootfs. That doesn't do the right thing if rootfs already exists, as it will when it is an lvm or other mount. So switch to 'rsync a/ b/'. (cp can be made to work too of course). 2. Update lxc-create to support backing stores. For now only lvm is implemented. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Fix several nagging bugs in lxc-destroySerge Hallyn2012-02-261-7/+27
| | | | | | | | | | | | Don't delete a running container. If it's running, abort the delete unless a new '-f' (force) flag is given, in which case, stop it first. Handle the case where we can't find $rootfs in config Fix broken detection of lvm backing store Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Support nested cgroupsSerge Hallyn2012-02-263-35/+184
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch, I can start a container 'o1' inside another container 'o1'. (Of course, the containers must be on a different subnet) Detail: 1. Create cgroups for containers under /lxc. 2. Support nested lxc: respect init's cgroup: Create cgroups under init's cgroup. So if we start a container c2 inside a container 'c1', we'll use /sys/fs/cgroup/freezer/lxc/c1/lxc/c2 instead of /sys/fs/cgroup/freezer/c2. This allows a container c1 to be created inside container c1 It also allow a container's limits to be enforced on all a container's children (which a MAC policy could already enforce, in which case current lxc code would be unable to nest altogether). 3. Finally, if a container's cgroup already exists, rename it rather than failing to start the container. Try to WARN the user so they might go clean the old cgroup up. Whereas without this patch, container o1's cgroup would be /sys/fs/cgroup/<subsys>/o1, it now becomes /sys/fs/cgroup/<subsys>/<initcgroup>/lxc/o1 so if init is in cgroup '/' then o1's freezer cgroup would be: /sys/fs/cgroup/freezer/lxc/o1 Changelog: . make lxc-ps work with separate mtab. If cgroups were mounted with -n, and mtab is not linked to /proc/self/mounts, then 'mount -t cgroup' won't show these mounts. So make lxc-ps not use it, but rather use /proc/self/mounts directly. . lxc-ls in the past assumed that a container's cgroup was just '/<name>'. Now it is '/<host-init-cgroup>/lxc/<name>'. Handle that. . first version of this patch was setting clone_children on <path-to-cpusets-cgroup>/<init-cgroup>/lxc, not the parent of that dir. That failed to initialize that cgroup, so tasks could not enter it. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-ubuntu: use release-updates and release-securitySerge Hallyn2012-02-261-1/+51
| | | | | | | | | | | | | | | Particularly for LTS releases, which many people will want to use in their containers, it is not wise to not use -security and -updates. Furthermore the fix allowing ssh to allow the container to shut down is in lucid-updates only. With this patch, after debootstrapping a container, we add -updates and -security to sources.list and do an apt-get upgrade under chroot. Unfortunately we need to do this because debootstrap doesn't know how to. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-ubuntu: add /dev/full, /dev/hpet, and /dev/kvm to devices whitelistSerge Hallyn2012-02-261-0/+6
| | | | | | | Thanks for Scott Moser for these, which allows qemu to run inside a container. Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* drop mac_admin and mac_overrideSerge Hallyn2012-02-261-1/+1
| | | | | | | | | | mac_admin stops the container from loading LSM policy. Neither selinux nor apparmor currently will do well with automatic namespacing of policy (though it's coming in apparmor, after which we can re-enable this). Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Add new 'precise' release to ubuntu templateSerge Hallyn2012-02-261-2/+2
| | | | | Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Add MIPS as a supported architectureKevin Cernekee2012-02-261-0/+1
| | | | | | | | | The issue is similar to what was fixed in commit e7eb632c for ARM: the "configure" script errors out because it is unable to set LINUX_SRCARCH. Fix is to add MIPS to the list. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* fix-automake-1.13Jon Nordby2012-02-232-2/+2
| | | | | | | | | | | | ## 0001-Replace-pkglib_PROGRAMS-with-pkglibexec_PROGRAMS.patch [diff] From 95c566740bba899acc7792c11fcdb3f4d32dcfc9 Mon Sep 17 00:00:00 2001 From: Jon Nordby <jononor@gmail.com> Date: Fri, 10 Feb 2012 11:38:35 +0100 Subject: [PATCH] Replace pkglib_PROGRAMS with pkglibexec_PROGRAMS Without this change, autogen.sh fails with automake 1.11.3 Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Add man page for lxc-attachChristian Seiler2012-02-234-0/+196
| | | | Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* lxc-attach: Drop privileges when attaching to container unless requested ↵Christian Seiler2012-02-231-13/+102
| | | | | | | | | | | | | | | | | | | | | otherwise lxc-attach will now put the process that is attached to the container into the correct cgroups corresponding to the container, set the correct personality and drop the privileges. The information is extracted from entries in /proc of the init process of the container. Note that this relies on the (reasonable) assumption that the init process does not in fact drop additional capabilities from its bounding set. Additionally, 2 command line options are added to lxc-attach: One to prevent the capabilities from being dropped and the process from being put into the cgroup (-e, --elevated-privileges) and a second one to explicitly state the architecture which the process will see, (-a, --arch) which defaults to the container's current architecture. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Move lxc_attach from namespace.c to attach.c and rename it to lxc_attach_to_nsChristian Seiler2012-02-235-50/+38
| | | | | | | | | | Since lxc-attach helper functions now have an own source file, lxc_attach is moved from namespace.c to attach.c and is renamed to lxc_attach_to_ns, because that better reflects what the function does (attaching to a container can also contain the setting of the process's personality, adding it to the corresponding cgroups and dropping specific capabilities). Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
* Add attach.[ch]: Helper functions for lxc-attachChristian Seiler2012-02-233-1/+295
| | | | | | | | | | | | | | The following helper functions for lxc-attach are added to a new file attach.c: - lxc_proc_get_context_info: Get cgroup memberships, personality and capability bounding set from /proc for a given process. - lxc_proc_free_context_info: Free the data structure responsible - lxc_attach_proc_to_cgroups: Add the process specified by the pid parameter to the cgroups given by the ctx parameter. - lxc_attach_drop_privs: Drop capabilities to the capability mask given in the ctx parameter. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>