system-config/launch
Ian Wienand ff45b12412
launch: further DNS cleanups
As pointed out by clarkb in review of prior change
I06995027a4b80133bdac91c263d7a92fd495493b the hostname handling here
is a bit wonky.

Use "host" instead of "hostname" since we use that in the rest of the
file.  The print_dns() function doesn't need a cloud argument, remove
it.  The print_sshfp_records was incorrectly splitting the host/domain
for nodes like "mirror.rax.iad.openstack.org" -- simply pass only the
host for the bind record from the print_dns() function.

Change-Id: I3d851902ef52588a69294b02e22f4b4667454629
2023-04-14 10:31:06 +10:00
..
src/opendev_launch launch: further DNS cleanups 2023-04-14 10:31:06 +10:00
pyproject.toml Merge "launch: Automatically do RAX rdns updates when launching nodes" 2022-12-21 23:09:39 +00:00
README.rst launch-node : make into a small package 2022-11-21 16:29:22 +11:00

Create Server

The commands in this section should be run as root on the bastion host.

To launch a node in the OpenStack CI account (production servers):

export OS_CLOUD=openstackci-rax
export OS_REGION_NAME=DFW
export FLAVOR="8 GB Performance"
export FQDN=servername01.opendev.org

/usr/launcher-venv/bin/launch-node $FQDN --flavor "$FLAVOR" \
  --cloud=$OS_CLOUD --region=$OS_REGION_NAME

Manually add the hostname to DNS (the launch script does not do so automatically, but it prints the commands to run). Note that for *.opendev.org hosts you'll only be able to add the reverse dns records via the printed commands. Forward A and AAAA records should be added to opendev/zone-opendev.org/zones/opendev.org/zone.db.

We need to add the host to our static inventory file so that the ansible runs see the new host. The launch script prints out the appropriate lines to add to opendev/system-config:inventory/openstack.yaml.

In order for Ansible to work, you also need to accept the root SSH key for the new server. Once the new DNS entries have propagated, as root on the bastion server:

ssh root@$FQDN

Verify the fingerprint of the new server and type "yes" to accept. Then you can log out.

Add DNS Records

The launch-node script will print the commands needed to be run to configure DNS for a newly launched server. To see the commands for an existing server, run:

/usr/launcher-venv/bin/show-dns $FQDN