Deploy compute hosts with Kubernetes to join an existing primary host

Deploy a compute with Kubernetes to join an existing primary host in your cluster.

About this task

You can deploy an IBM® Spectrum Symphony compute host with Kubernetes to join an existing IBM Spectrum Symphony primary host. To do so, you must install Weave on the primary host and connect it to the Kubernetes Weave network in order to communicate with the compute host. Weave will assign a new IP address to this physical host.

Procedure

Install the virtual network Weave on the primary host:

sudo curl -L git.io/weave -o /usr/local/bin/weave

sudo chmod +x /usr/local/bin/weave

systemctl start docker

weave setup
Connect Weave to the Kubernetes Weave network in order to communicate with the compute host. Weave will assign a new IP address to the physical host:
hostname
```
example.ibm.com
```
weave expose
```
10.32.0.2
```
Modify the Kubernetes YAML file for the compute hosts, and replace the host name and IP address with the IBM Spectrum Symphony primary host name (example.ibm.com) and IP address (10.32.0.2) provided by Weave.

Note: Do not use the physical IP address of the IBM Spectrum Symphony primary host.

Use this YAML file to create the compute hosts. The compute hosts will be started in containers and will be connected to the IBM Spectrum Symphony primary host:

egosh resource list -1

NAME               status mem   swp   tmp ut  it pg r1m r15s r15m ls
example.ibm.com        ok 2534M 2046M 94G 41% 208 0 3.8 9.1  5.2  0
sym-compute-68k4x      ok 2726M 2042M 94G 24% 183 0 3.9 7.9  1.6  0

Results

The compute hosts are deployed with Kubernetes, and are connected to the IBM Spectrum Symphony primary host.