** Description changed:
+ ===============================
+ SRU Justification:
+ 1. Impact: lxc-start-ephemeral does not update hostname for fedora containers
+ 2. Development fix: add the necessary files (/etc/sysconfig/) for fedora
hosts to the list of files to be updated.
+ 3. Stable fix: same as development fix.
+ 4. test case: create a fedora container, then start an ephemeral one based on
it:
+ lxc-create -t fedora -n f14
+ lxc-start-ephemeral -o f14
+ and check its hostname
+ 5. Regression potential: none - we only attempt updates if the file exists.
+ ===============================
As discussed in the thread "lxc template for RHEL?"
http://sourceforge.net/mailarchive/message.php?msg_id=29730103
lxc-start-ephemeral only knows how to tweak the hostname for ubuntu and
debian,
and needs to be taught about where rhel and centos put hostname, something
like this:
--- lxc-start-ephemeral.orig 2012-08-27 12:19:03.935513119 -0700
+++ lxc-start-ephemeral 2012-08-27 12:19:54.471514479 -0700
@@ -154,7 +154,19 @@
- LXC_MOUNTED=1
+ LXC_MOUNTED=1
- # Update the ephemeral lxc's configuration to reflect the new
+ # Update the ephemeral lxc's configuration to reflect the new
container name.
- sudo sed -i -e "s/$LXC_BASE/$LXC_NAME/" $LXC_DIR/fstab $LXC_DIR/config
$LXC_DIR/rootfs/etc/hostname $LXC_DIR/rootfs/etc/hosts
+ # Check all the places known distros keep hostnames.
+ # FIXME: should we sanity check the hostname to make sure it contains no
bad chars?
+ for file in $LXC_DIR/fstab $LXC_DIR/config \
+ $LXC_DIR/rootfs/etc/hostname \
+ $LXC_DIR/rootfs/etc/hosts \
+ $LXC_DIR/rootfs/etc/sysconfig/network \
+ $LXC_DIR/rootfs/etc/sysconfig/network-scripts/ifcfg-eth0
+ do
+ if test -f "$file"
+ then
+ sudo sed -i -e "s/$LXC_BASE/$LXC_NAME/" $file
+ fi
+ done
- # Update the fstab to have all bind mounts be ephemeral.
- sudo cp $LXC_DIR/fstab $LXC_DIR/fstab.old
+ # Update the fstab to have all bind mounts be ephemeral.
+ sudo cp $LXC_DIR/fstab $LXC_DIR/fstab.old
This affects 12.04 and the ppa for lxc, so probably also 12.10 alpha 3.
** Changed in: lxc (Ubuntu Precise)
Status: New => In Progress
** Changed in: lxc (Ubuntu Precise)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1042431
Title:
lxc-start-ephemeral needs tweak to handle centos and fedora hostname
setting
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