Lab 3 - DevStack Compute

Lab Objectives:

Install and link a DevStack Compute node

Connect to your compute instance:

ssh ubuntu@<COMPUTE IP> -i student.pem
sudo whoami

Install DevStack:

sudo apt-get install git
git clone https://git.openstack.org/openstack-dev/devstack
cd devstack
cp samples/local.conf local.conf
Edit the ’local.conf` file. The sample config file will have useful comments which are not replicated below.

nano local.conf or vim local.conf

[[local|localrc]]

Please replace x.x.x.x with the compute node’s internal IP address

HOST_IP=x.x.x.x

Please replace x.x.x.x with the controller’s internal IP address

FIRST_HOST=x.x.x.x

Please replace x.x.x.x with the controller’s public IP address

FIRST_HOST_PUBLIC=x.x.x.x

SERVICE_HOST=$FIRST_HOST MYSQL_HOST=$FIRST_HOST RABBIT_HOST=$FIRST_HOST GLANCE_HOSTPORT=$FIRST_HOST:9292

ENABLED_SERVICES=n-cpu,n-net,n-api,c-vol

NOVA_VNC_ENABLED=True NOVNCPROXY_URL=“http://$FIRST_HOST_PUBLIC:6080/vnc_auto.html” VNCSERVER_LISTEN=$HOST_IP VNCSERVER_PROXYCLIENT_ADDRESS=$VNCSERVER_LISTEN

DATABASE_TYPE=mysql

tokens and passwords

SERVICE_TOKEN=DKS3MQMX72MSLQP231N # an alphanumeric token ADMIN_PASSWORD=supersecret MYSQL_PASSWORD=radicallyrelational RABBIT_PASSWORD=rasciallyrabbit SERVICE_PASSWORD=supersecret

FLAT_INTERFACE=eth0

private IPs

FIXED_RANGE=10.0.0.0/16 FIXED_NETWORK_SIZE=65534

public IPs

FLOATING_RANGE=192.168.0.0/24

MULTI_HOST=True

LOGFILE=$DEST/logs/stack.sh.log LOGDAYS=2

     
      * Be sure to remove config lines from the sample config about Swift and Tempest

  0. Run `ip addr show`
  0. Run stack.sh, this will take a little bit less time that Lab 1
    
     `./stack.sh 2>&1 | tee stack.log`

    > :white_check_mark: **Additional Info**:
    >
    > * `stack.sh`-ing a compute node should take much less time than our previous full devstack install

  0. Run `ip addr show` again and notice the added interfaces and bridges
  0. Login to the OpenStack Horizon Web Interface by navigating your browser to the public IP address of the controller
  0. Admin > System > Hypervisors and marvel at the number of Hypervisors
   
     ![TWO HYPERVISORS](img/horizon-twohyper.png)

  0. Launch another Instance and ping between the two currently running instances 

     Project > Compute > Instances > Launch Instance
     
     ![Instances](img/horizon-instances.png)
     ![Ping Pong](img/horizon-ping.png)
     ![Ping Pong](img/horizon-pong.png)
      
#### [Next Lab](../lab-04)