Chapter 3. Getting into your OpenStack HA Environment

With the OpenStack HA environment running, log into your director (undercloud) system. Then, become the stack user by running:

sudo su - stack

# sudo su - stack

From there, you can interact with either the undercloud and overcloud by loading its corresponding environment variables. To interact with the undercloud, run:

source ~/stackrc

$ source ~/stackrc

Likewise, to interact with the overcloud, run:

source ~/overcloudrc

$ source ~/overcloudrc

For more information about accessing either undercloud or overcloud, see Accessing the Overcloud.

To access and investigate a node, first find out what IP addresses have been assigned to them. This involves interacting with the undercloud:

source ~/stackrc
nova list
 +-------+------------------------+---+----------------------+
 | ID    | Name                   |...| Networks             |
 | d1... | overcloud-controller-0 |...| ctlplane=10.200.0.11 |
 ...

$ source ~/stackrc
$ nova list
 +-------+------------------------+---+----------------------+
 | ID    | Name                   |...| Networks             |
 | d1... | overcloud-controller-0 |...| ctlplane=10.200.0.11 |
 ...

Once you know the IP addresses of your overcloud nodes, you can run the following command to log into one of those nodes. Doing so involves interacting with the overcloud. For example, to log into overcloud-controller-0 as the heat-admin user:

source ~stack/overcloudrc
ssh heat-admin@10.200.0.11

$ source ~stack/overcloudrc
$ ssh heat-admin@10.200.0.11

After logging into a controller, compute, or storage system, you can begin investigating the HA features there.