This section describes the scenario of installing Cloud Pak for Integration first, followed by Cloud Pak for Applications.
From the experience of the residency group, if you are wanting to install these two Cloud Paks in the same cluster, installing them in this order is recommended.
The first step is to consider the prerequisites for the Cloud Paks you want to install and to make sure your cluster has the required resources.
- Refer to the Knowledge Center prerequisites page (Cloud Pak for Integration 2019.4) for details on what is required before starting an installation.
- Refer to the Knowledge Center prerequisites page (Cloud Pak for Applications 4.0.x) for details on what is required before starting an installation.
- Also consider the prerequisites for installing the Cloud Pak for Applications developer tools. Prerequisites and installation instructions are provided in this Playbook for Mac and for Windows workstations.
For your convenenience, the combined resource requirements that were used during the residency in January 2020 are shown below. You are advised to check the product documentation for the most current numbers for the releases you want to install.
|Node Type||Quantity||CPU||RAM||DISK 1||DISK 2||DISK 3|
Potential Storage Class Issue:
The Cloud Pak for Applications installer will use the default
storage class. If the solution steps below are not done,
CouchDB installation will fail. The
Cloud Pak for Applications
Transformation Advisor (TA) component
requires ReadWriteMany (RWX) storage. This means you need
at least one RWX storage volume available. The solution below
describes configuring NFS for RWX storage, which was the option
used in January 2020.
There should be an option to choose a storage class in
config.yaml file. However, this option did not exist at the
time of writing.
Create an NFS export on an NFS server.
Define a Read Write Many (RWX) Persistent Volume (PV) on the cluster to point to your NFS export.
Change the storage class name in the Transformation Advisor operator definition, so that it uses the NFS storage.```oc edit crd transadvs.charts.ta.cloud.ibm.com```
Keep in mind that this configuration will be overwritten by installing a later release. The only alternative is to change the default storage class.
Note: The Cloud Pak for Applications installer will report
that the installation completed
even if the
Transformation Advisor (TA) fails.