Quoting Scott Moser (smo...@ubuntu.com):
> prior to my enabling of the clone hook, the setting of the hostname
> was being done by writing to /etc/hostname. Instead of relying on that
> we're now writing 'local-hostname' into the metadata for the instance.
>
> cloud-init then reads this and sets the hostname properly.
>
> We are also writing /etc/hostname with the new hostname explicitly. This is
> useful/necessary because on network bringup of eth0, dhclient will submit its
> hosname. The updating done by cloud-init occurs to late, and thus
> the dhcp request goes out with the un-configured hostname and dns doens't
> work correctly.
>
> Signed-off-by: Scott Moser <smo...@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hal...@ubuntu.com>
Thanks, Scott.
-serge
> ---
> hooks/ubuntu-cloud-prep | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/hooks/ubuntu-cloud-prep b/hooks/ubuntu-cloud-prep
> index c4c3620..f0b30ea 100755
> --- a/hooks/ubuntu-cloud-prep
> +++ b/hooks/ubuntu-cloud-prep
> @@ -49,8 +49,8 @@ prep() {
> fi
>
> local cur="" next=""
> - local userdata="" hostid="" authkey="" locales=1 cloud=0 name=""
> - local create_etc_init=0
> + local userdata="" hostid="" authkey="" locales=1 cloud=0
> + local create_etc_init=0 name="ubuntucloud-lxc"
>
> while [ $# -ne 0 ]; do
> cur="$1"; next="$2";
> @@ -97,6 +97,10 @@ prep() {
>
> local seed_d=""
> seed_d="$root_d/var/lib/cloud/seed/nocloud-net"
> +
> + echo "$name" > "$root_d/etc/hostname" ||
> + { error "failed to write /etc/hostname"; return 1; }
> +
> if [ $cloud -eq 1 ]; then
> debug 1 "--cloud provided, not modifying seed in '$seed_d'"
> else
> @@ -110,6 +114,9 @@ prep() {
> echo "instance-id: lxc-$hostid" > "$seed_d/meta-data" ||
> { error "failed to write to $seed_d/meta-data"; return 1; }
>
> + echo "local-hostname: $name" >> "$seed_d/meta-data" ||
> + { error "failed to write to $seed_d/meta-data"; return 1; }
> +
> if [ -n "$authkey" ]; then
> {
> echo "public-keys:" &&
> --
> 1.8.3.2
>
>
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