Hey Serge, Updating some production servers to newer IRC I noticed a slight breakage with the clearenv() change introduced a month or so ago.
We typically want clearenv() to happen just before the final exec so that we still have the existing environment for anything before that, most importantly the hooks. This appears to be the case for the command line tools but not for the API. With the API, it looks like the clearenv() is done before the hooks run. Here's the environment as I get it from a mount hook when using lxc-start: SUDO_GID=200512 MAIL=/var/mail/root LANGUAGE=en_US:en USER=root HOME=/home/stgraber COLORTERM=gnome-terminal SUDO_UID=201105 LOGNAME=root TERM=xterm USERNAME=root PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin LXC_ROOTFS_MOUNT=/usr/lib/x86_64-linux-gnu/lxc DISPLAY=:0 LXC_CONFIG_FILE=/var/lib/lxc/precise-gui/config LANG=en_US.UTF-8 XAUTHORITY=/home/stgraber/.Xauthority SUDO_COMMAND=/usr/bin/lxc-start -n precise-gui KRB5CCNAME=FILE:/tmp/krb5cc_201105_Lrlyri SHELL=/bin/bash SUDO_USER=stgraber PWD=/home/stgraber/data/vm/lxc/lib LXC_ROOTFS_PATH=/var/lib/lxc/precise-gui/rootfs LXC_NAME=precise-gui And same container but started from the API: container=lxc LXC_ROOTFS_MOUNT=/usr/lib/x86_64-linux-gnu/lxc LXC_CONFIG_FILE=/var/lib/lxc/precise-gui/config PWD=/ LXC_ROOTFS_PATH=/var/lib/lxc/precise-gui/rootfs LXC_NAME=precise-gui The biggest problem here is the absence of PATH, making my hooks fail. For now I simply hardcoded PATH, but I think we'll want to make the environment from the API match that of lxc-start and find a way of moving clearenv a bit closer to the final exec there too. -- Stéphane Graber Ubuntu developer http://www.ubuntu.com
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