openstack
/
instack-undercloud
Code Issues Proposed changes

Check for a FQDN hostname in instack-install-undercloud 

A FQDN hostname needs to be set. The $HOSTNAME environment variable
should also match the defined FQDN hostname. rabbitmq-env makes use of
$HOSTNAME and if it does not match the FQDN hostname, rabbitmq-server
will fail to start for various reasons.

For the virt setup, handle setting the FQDN hostname automatically as
instack.localdomain.

Change-Id: Id3339702ed4db4cd593ef1a70249f29f79059c6f
This commit is contained in:
James Slagle 2015-04-30 07:46:30 -04:00
parent c93423c5d6
commit 2897a07827
3 changed files with 52 additions and 5 deletions
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25
doc/source/installation/installing.rst
View File

@ -18,12 +18,27 @@ Installing Undercloud
su - stack
.. note::
Ensure that there is an entry for the system's full hostname in /etc/
hosts. For example, if the system is named *myhost.mydomain*, /etc/hosts
should have an entry like::
.. admonition:: Baremetal
:class: baremetal
127.0.0.1 myhost.mydomain
.. note:: Ensure that there is a FQDN hostname set and that the $HOSTNAME
environment variable matches that value.
Use ``hostnamectl`` to set a hostname if needed::
sudo hostnamectl set-hostname myhost.mydomain
sudo hostnamectl set-hostname --transient myhost.mydomain
export HOSTNAME=myhost.mydomain
An entry for the system's FQDN hostname is also needed in /etc/hosts.
For example, if the system is named *myhost.mydomain*, /etc/hosts should have
an entry like::
127.0.0.1 myhost.mydomain
Copy in the sample answers file and edit it to reflect your environment::
cp /usr/share/instack-undercloud/instack.answers.sample ~/instack.answers
#. Download and execute the instack-undercloud setup script which will enable

7
elements/instack-vm/post-install.d/90-set-hostname Executable file
View File

@ -0,0 +1,7 @@
#!/bin/bash
set -eux
set -o pipefail
echo "$UNDERCLOUD_VM_NAME.localdomain" > /etc/hostname
echo "127.0.0.1 $UNDERCLOUD_VM_NAME $UNDERCLOUD_VM_NAME.localdomain" >> /etc/hosts

25
scripts/instack-install-undercloud
View File

@ -10,6 +10,31 @@ exec 2>&1
echo "Running $0"
echo "Checking for a FQDN hostname..."
detected_static_hostname=$(sudo hostnamectl --static)
echo "static hostname detected as...$detected_static_hostname"
detected_transient_hostname=$(sudo hostnamectl --transient)
echo "transient hostname detected as...$detected_transient_hostname"
echo "\$HOSTNAME detected as...$HOSTNAME"
if [ ! "$detected_static_hostname" = "$detected_transient_hostname" ]; then
echo "static hostname does not match transient hostname"
echo "Use hostnamectl to set matching hostnames."
exit 1
fi
if [ ! "$detected_static_hostname" = "$HOSTNAME" ]; then
echo "static hostname does not match \$HOSTNAME"
echo "Set \$HOSTNAME to match or relogin so $HOSTNAME is redefined."
exit 1
fi
if ! grep -E "\s+$detected_static_hostname(\s|$)+" /etc/hosts; then
echo "static hostname not set in /etc/hosts"
echo "Please add a line to /etc/hosts for the static hostname."
exit 1
fi
# We must do this until tripleo-puppet-elements is packaged
export DIB_INSTALLTYPE_puppet_modules=source
# Commit 9970cc6550735370666553cb043656bb945bef7b to puppetlabs-concat is