SUSE CaaS Platform 4

SAP Data Intelligence 3 on CaaS Platform 4.2 #

Installation Guide

SUSE Best Practices

Containerization SAP

Authors

Dr. Ulrich Schairer, SAP Solutions Architect (SUSE)

Kevin Klinger, SAP Solutions Architect (SUSE)

SUSE CaaS Platform 4.2

SUSE Linux Enterprise Server for SAP Applications 15

SAP Data Intelligence 3

Date: 2021-03-11

SAP Data Intelligence 3 is the tool set to govern big amount of data. SUSE CaaS Platform 4 is the Kubernetes base that makes deploying SAP Data Intelligence 3 easy. This document describes the installation and configuration of SUSE CaaS Platform 4 and SAP Data Intelligence 3.

Disclaimer: Documents published as part of the SUSE Best Practices series have been contributed voluntarily by SUSE employees and third parties. They are meant to serve as examples of how particular actions can be performed. They have been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. SUSE cannot verify that actions described in these documents do what is claimed or whether actions described have unintended consequences. SUSE LLC, its affiliates, the authors, and the translators may not be held liable for possible errors or the consequences thereof.

1 Introduction #

This guide describes the on-premises installation of SAP Data Intelligence 3 on SUSE CaaS Platform 4.2.

2 Prerequisites #

2.1 Hardware #

For sizing information, see in addition the SAP documentation: Sizing Guide for SAP Data Intelligence

At least eight nodes are needed for a Kubernetes cluster for production use.

Minimal requirements:
- three master nodes
- four worker nodes
- one or two loadbalancers (these can be virtual machines)

For the installation of SUSE CaaSP 4.2, additional hosts are needed:

Management host
Registry for storing container images

These can be virtual machines.

2.2 Software #

SUSE Linux Enterprise 15 SP1
SUSE CaaSP 4.2

3 Installing SUSE CaaSP 4.2 #

3.1 Documentation #

SUSE CaaS Platform 4.2 is documented here:

SUSE CaaS Platform product documentation

3.2 Preparations #

On all the nodes, install SUSE Linux Enterprise 15 SP1 or higher, as per the documentation for CaaS Platform 4.2.

On each respective node, the following modules or products are required.

Management host:
- SUSE Linux Enterprise 15 SP1
- SUSE Linux Enterprise 15 SP1 Containers Modules
- SUSE Linux Enterprise 15 SP1 Public Cloud
- SUSE CaaSP 4
Kubernetes master nodes:
- SUSE Linux Enterprise 15 SP1
- SUSE Linux Enterprise 15 SP1 Public Cloud
- SUSE CaaSP 4
Kubernetes worker nodes:
- SUSE Linux Enterprise 15 SP1
- SUSE Linux Enterprise 15 SP1 Public Cloud
- SUSE CaaSP 4
Loadbalancer host:
- SUSE Linux Enterprise Server for SAP Applications 15 SP1
  or
- SUSE Linux Enterprise 15 SP1 plus High Availability Extension

3.3 Installing the SUSE CaaSP 4 cluster nodes #

Install SUSE Linux Enterprise 15 SP1.
Note
Use the "Expert Partitioner" to disable and remove any automatically-configured swap partitions on the Kubernetes nodes.

See the relevant product documentation:

3.4 Installing the loadbalancer for the Kubernetes cluster #

Install SUSE Linux Enterprise 15 SP1
Install ha-proxy or nginx
Configure the loadbalancer

See the relevant product documentation:

SUSE CaaS Platform Deployment Guide

3.5 Installing the management workstation #

Install SUSE Linux Enterprise 15 SP1

Add the necessary SUSE Linux Enterprise 15 SP1 modules: value

$ sudo SUSEConnect -r CAASP_REGISTRATION_CODE
$ sudo SUSEConnect -p sle-module-containers/15.1/x86_64
$ sudo SUSEConnect -p caasp/4.0/x86_64 -r CAASP_REGISTRATION_CODE
$ sudo SUSEConnect -p sle-module-python2/15.1/x86_64

3.6 Bootstrapping the SUSE CaaSP 4 cluster #

Run the skuba tool for initialization of the cluster.

Make sure that ssh is working between all nodes without using passwords, and configure ssh-agent.

$ eval `ssh-agent`
$ ssh-add <path to key>

$ skuba cluster init --control-plane <LB IP/FQDN> my-cluster

Bootstrap the cluster:

$ cd my-cluster
$ skuba node bootstrap --target <IP/FQDN> <NODE NAME>

Add additional master nodes:

$ cd my-cluster
$ skuba node join --role master  --target <IP/FQDN> <NODE NAME>

Repeat this for all the master nodes.

Add the worker nodes:

$ cd my-cluster
$ skuba node join --role worker --target <IP/FQDN> <NODE NAME>

Repeat this for all worker nodes.

Finally, check the cluster status.

$ cd my-cluster
$ skuba cluster status
$ cp -av  ~/my-cluster/admin.conf  ~/.kube/config
$ kubectl get nodes -o wide

4 Adding secure private Docker Registry for container images #

Tip

This step is optional if you already have a private secure Docker Registry. If you skip this chapter, follow the instructions in Section 5, “SUSE Enterprise Storage”.

To satisfy the requirements for SAP Data Intelligence 3, you also need a Docker Registry. The easiest way to build and manage one is using the Harbor project.

To this end, you need to create a dedicated server for your Docker registry and the Harbor stack.

Warning

As Docker only allows characters within the range [a-z],[A-Z],[0-9] and '-' for domain names, make sure that your FQDN does not contain any other characters.

In our example, the server will be connected to a local bridge which provides common services (DNS, SMT, Docker-registry) for the SAP Data Intelligence stack. The FQDN of this server will be harbor-registry.example.com.

4.1 Prerequistes #

Find the prerequisites for Harbor here: Harbor Installation Prerequisites

Before you can set up Harbor, you need to install Docker and Docker Compose.

To install Docker, run:
```
# zypper in -y docker
```

To install Docker Compose, you must download the executable from its GitHub repository and save it into a directory within your $PATH.

For example, run:

# curl -L "https://github.com/docker/compose/releases/download/1.25.5/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

# chmod +x /usr/local/bin/docker-compose

# ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

The next steps will generate the certificates used to make Harbor secure. These can also be found in the document Configure HTTPS Access to Harbor.

First, generate a CA certificate private key:
```
# openssl genrsa -out ca.key 4096
```
Then, generate a certificate with the given key for your domain.
Note
For all further steps, replace <FQDN> with your fully qualified domain name. In our example, this would be harbor-registry.example.com.
```
# openssl req -x509 -new -nodes -sha512 -days 3650 \
  -subj "/C=DE/ST=BW/O=SUSE/CN=<FQDN>" \
  -key ca.key \
  -out ca.crt
```
Your CA certificate is now ready for use.
Next, you must generate a server certificate as follows:
```
# openssl genrsa -out <FQDN>.key 4096
```

Generate a certificate signing request (CSR):

# openssl req -sha512 -new \
  -subj "/C=DE/ST=BW/O=SUSE/CN=<FQDN>" \
  -key <FQDN>.key \
  -out <FQDN>.csr

Create an x509 v3 extension file with the following content:

authorityKeyIdentifier=keyid,issuer
basicConstraints=CA:FALSE
keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alt_names

[alt_names]
DNS.1=<FQDN>
DNS.2=<hostname>

Use the extension file to generate a certificate:

# openssl x509 -req -sha512 -days 3650 \
  -extfile v3.ext \
  -CA ca.crt -CAkey ca.key -CAcreateserial \
  -in $fqdn.csr \
  -out $fqdn.crt

Copy the .crt and .key files to the system’s certificate directory:

# cp <FQDN>.crt /etc/pki/trust/anchors/
# cp <FQDN>.key /etc/pki/trust/anchors/

As Docker interprets .crt files as CA certificates and .cert files as clients, you must convert your .crt file as follows:
```
# openssl x509 -inform PEM -in <FQDN>.crt -out $<FQDN>.cert
```
You can now copy the newly created certificates to your Docker certificate directory. If the directory /etc/docker/certs.d does not exist, create it.
```
# mkdir /etc/docker/certs.d/<FQDN>
# cp <FQDN>.cert /etc/docker/certs.d/<FQDN>/
# cp <FQDN>.key /etc/docker/certs.d/<FQDN>/
# cp ca.crt /etc/docker/certs.d/<FQDN>/
```
Note
If you want to expose your registry on a port other than 443, you must create a directory /etc/docker/certs.d/<FQDN>:<Port> and copy the certificates to this directory instead.
To introduce the certificates to Docker, restart the Docker daemon:
```
# systemctl restart docker
```

4.2 Setting up Harbor #

Fetch the Harbor installer and extract its contents:

# wget https://github.com/goharbor/harbor/releases/download/v2.1.1/harbor-online-installer-v2.1.1.tgz
# tar xvf harbor-online-installer-v2.1.1.tgz

Enter the extracted directory:
```
# cd harbor
```
Within this directory, you should find a file called harbor.yml.tmpl. It contains the configuration for the Harbor Registry and must be adjusted.
1. First, edit the hostname field and enter your FQDN.
2. Next, update the HTTPS configuration. The subentries certificate and private_key must be adjusted so they point to the .crt and .key files you created in Section 4.1, “Prerequistes”.
  This should look like the following:
  If you want to expose registry on a port other than 443, you can change the port sub-entry to match your desired port.
3. You should also change the administrator password for Harbor, which by default is defined in the field harbor_admin_password: Harbor12345.
4. The last field to mention is data_volume: /data, which defines where all Harbor data will be stored. If you want Harbor to store the data somewhere else, enter the path to the desired directory here.
When done, save your changes, and rename the file by removing the .tmpl suffix:
```
# mv harbor.yml.tmpl harbor.yml
```
As Harbor uses nginx as a reverse proxy for all services, you must run the prepare script to configure it correctly:
```
# ./prepare
```
You can now start the needed containers using Docker Compose:
```
# docker-compose up -d
```
Harbor should now be up and running.

Distribute the CA certificate to all Kubernetes nodes, so they can access the registry. Run the following commands on all the nodes:

# scp <FQDN>:/etc/docker/certs.d/<FQDN>/ca.crt /etc/docker/certs.d/<FQDN>/<FQDN>.crt
# systemctl restart docker

For the example <FQDN> of harbor-registry.example.com, this looks like the following:

# scp harbor-registry.example.com:/etc/docker/certs.d/harbor-registry.example.com/ca.crt /etc/docker/certs.d/harbor-registry.example.com/harbor-registry.example.com.crt
# systemctl restart docker

4.3 Verifying configuration and setting up Harbor projects #

To verify Harbor is running, you may access its Web front-end by visiting https://<FQDN> from your browser.

You may get a warning about an insecure certificate, which looks similar to this:

You can toggle the lower box by clicking Advanced… Then click Accept the Risk and Continue. You will be redirected to the login page of your Harbor registry.

Enter admin as the user name and enter the password specified in the harbor.yml file. By default, this is "Harbor12345".

By default, you will be redirected to the project page which holds the "libraries" project.

You should also check if the Docker clients on your Kubernetes nodes can access the registry. To do so, run:

# docker login <FQDN>

You will be prompted to enter a user name and password. Use admin for the user name, and the password you set in harbor.yml (default: "Harbor12345").

If Docker can access the registry, you will see a message displayed that states "Login Succeeded" or similar.

If your machines cannot resolve the FQDN of your registry, edit your /etc/hosts file and add a line with the following information:

<IP>  <FQDN>  <Hostname>

In our example, this will look as follows:

192.168.180.100  harbor-registry.example.com  harbor-registry

Create the namespaces on your registry that are needed for SAP Data Intelligence 3:

com.sap.hana.container
com.sap.datahub.linuxx86_64
com.sap.datahub.linuxx86_64.gcc6
consul
elasticsearch
fabric8
google_containers
grafana
kibana
prom
vora
kaniko-project
com.sap.bds.docker

5 SUSE Enterprise Storage #

Tip

This step is optional if you already have a storage that provides RBD volumes and/or S3 buckets. If you skip this chapter, follow the instructions in Section 6.4, “Installing SAP Data Intelligence 3”.

An on-premises installation of SAP Data Intelligence 3 requires SUSE Enterprise Storage 5.5 or higher.

If you plan to use SUSE Enterprise Storage not only for your Kubernetes dynamic storage class but also for your Kubernetes control plane (virtualized or not), you should reserve enough resources to address the etcd requirements specified in the etcd Hardware recommendations

The following steps will deploy a minimalist, virtualized, test-oriented instance of SUSE Enterprise Storage 6. In our example, we will build a four-nodes (1 Admin + 3 OSD) Ceph cluster.

5.1 Before starting #

Obtain registration codes for SUSE Linux Enterprise Server 15 SP1 and SUSE Enterprise Storage from https://scc.suse.com, or have SMT/RMT properly set up and already mirroring these products.

5.2 Setting up the machines #

Download the installation media for SUSE Linux Enterprise Server 15 SP1, for example from:
- SUSE Linux Enterprise Server:
  - https://www.suse.com/download/sles/
- SUSE Enterprise Storage:
  - https://www.suse.com/download/ses/
To install the software, boot the destination machine and insert the installation media. After boot, you should see a screen like this:
Select your preferred language and keyboard layout. Then select the option "SUSE Linux Enterprise Server 15 SP1" and click the "Next" button.
You need to agree to the license agreement. Click "Next" again.
The registration screen should be displayed.
Now, either enter your e-mail and the registration code you collected from the SCC as described in the previous chapter, or select "Register System via local SMT Server" and enter the URL of your SMT server.
If required, you can use the Network Configuration button at the top right to configure your network settings.
When the system is registered, you will see the "Add On Product" page. You can skip it by clicking the "Next" button again.
The "Suggested Partitioning" page will be displayed. You may edit the proposed partitioning if needed. For our example, we accept the proposal and continue by clicking the "Next" button.
On the "Clock and Time Zone" page, you should select your preferred Region and Time Zone.
Click "Other Settings" to open the "Change Date and Time" page. Select the "Synchronize with NTP-Server" option. Then select an NTP server and click the "Accept" button.
Important
All machines in the cluster must synchronize with the same NTP Server!
Next, you can create a user with name and password of your choice. When done, confirm and click "Next".
Now the "Installation Settings" page is displayed. Disable the firewall. To do so, click the "disable" button located behind "Firewall will be enabled".
To finalize the installation, go to "Extension and Module Selection" and select "SUSE Enterprise Storage 6 x86_64".

Set up at least four machines the same way.

5.3 Setting up SUSE Enterprise Storage #

Check that your machines have the correct host names:

# hostname -f

This should output the FQDN of the machine. If this is not the case, you can use the following command to set the name:

# hostnamectl --set-hostname <FQDN>

For the document at hand, we use the following machine names:

admin.example.com
mon1.example.com
mon2.example.com
mon3.example.com

To ensure that DNS resolution for these names works properly, you should edit the /etc/hosts file on the nodes as follows:

127.0.0.1   localhost
<Admin-IP>  admin.example.com admin
<Mon1-IP>   mon1.example.com  mon1
<Mon2-IP>   mon2.example.com  mon2
<Mon3-IP>   mon3.example.com  mon3

If you do not know the IP address of a machine, run:

$ ip a

This should output something similar to the following:

5.3.1 Preparing the nodes #

On the OSD Nodes, install salt-minion and deepsea:
```
# zypper in -y salt-minion deepsea
```
On the Admin Node, install salt-minion, salt-master, and deepsea:
```
# zypper in -y salt-minion salt-master deepsea
```
Set the Salt master on all machines by editing the associated line:
```
# echo "master: admin.example.com" > /etc/salt/minion
```
On the Admin node, enable the salt-master service:
```
# systemctl enable salt-master --now
```
Enable the salt-minion service on all nodes:
```
# systemctl enable salt-minion --now
```
Now accept the Salt keys on the admin node:
```
# salt-key --accept-all -y
```
Tip
To check the keys, use the command salt-key -L. This should output something like:

Make all nodes DeepSea minions:

# echo "deepsea_minions: '*'" > /srv/pillar/ceph/deepsea_minions.sls

Synchronize your Salt minions:
```
# salt '*' saltutil.sync_all
```
Make sure your desired disks are all cleared. To this end, you can use:
```
# wipefs -a /dev/vdb
```
Note
Be aware that you might need to change the device (vdb) here. Ensure you clear all disks on all nodes.
Apply the cleared disks by using:
```
# salt '*' state.apply ceph.subvolume
```

5.3.2 Deploying the cluster #

Tip

You can watch the progress of the Ceph stages in a separate terminal with the command deepsea monitor.

Now you can run the first stage of deploying the Ceph cluster.

First, prepare the cluster:
```
# salt-run state.orch ceph.stage.prep
```
The result for the preparation stage should look similar to this:
The next stage is collecting information about the nodes:
```
# salt-run state.orch ceph.stage.discovery
```

Before you can run the last three stages, you must provide a role configuration for the nodes. This will be stored in /srv/pillar/ceph/proposals/policy.cfg. This example uses the following configuration:

#General config
config/stack/default/global.yml
config/stack/default/ceph/cluster.yml

#CEPH Cluster members
cluster-ceph/cluster/admin.example.com.sls
cluster-ceph/cluster/mon1.example.com.sls
cluster-ceph/cluster/mon2.example.com.sls
cluster-ceph/cluster/mon3.example.com.sls

#CEPH Admin nodes
role-admin/cluster/mon1.example.com.sls
role-admin/cluster/mon2.example.com.sls
role-admin/cluster/mon3.example.com.sls

#CEPH Master node
role-master/cluster/admin.example.com.sls

#CEPH Manager nodes
role-mgr/cluster/mon1.example.com.sls
role-mgr/cluster/mon2.example.com.sls
role-mgr/cluster/mon3.example.com.sls

#CEPH Monitor nodes
role-mon/cluster/mon1.example.com.sls
role-mon/cluster/mon2.example.com.sls
role-mon/cluster/mon3.example.com.sls

#CEPH RGW nodes
role-rgw/cluster/admin.example.com.sls
role-rgw/cluster/mon1.example.com.sls
role-rgw/cluster/mon2.example.com.sls
role-rgw/cluster/mon3.example.com.sls

#CEPH Storage nodes
role-storage/cluster/admin.example.com.sls
role-storage/cluster/mon1.example.com.sls
role-storage/cluster/mon2.example.com.sls
role-storage/cluster/mon3.example.com.sls

You can now safely deploy your configuration:
```
# salt-run state.orch ceph.stage.configure
```
Deploy your configuration to the cluster:
```
# salt-run state.orch ceph.stage.deploy
```
When the deployment stage has been successfully passed, check the cluster health to insure that all is running properly.
```
# ceph -s
```
The last stage to run is deploying the service roles, which were specified in the policy.cfg file:
```
# salt-run state.orch ceph.stage.services
```

5.4 Access the dashboard and create a new pool #

After the Ceph cluster is up and running, you must create a pool for SAP Data Intelligence 3.

In our example, we will use the dashboard for this purpose.

The dashboard is published by any of the monitor nodes. To access it, use a Web browser:
Get the credentials to log in by running the following command on the Admin Node:
```
# salt-call grains.get dashboard_creds
```
After logging in, the landing page should appear.
Select the "Pools" tab at the top of the page:
The Pools page gives an overview of the currently defined pools.
Click the "Create" button at the top of the table to create a new pool:
Enter the name of the pool. As "Pool type", select replicated.
On the left side of "Applications", click the pencil symbol and select rbd.
Confirm the creation of the pool by clicking the "CreatePool" button at the bottom.
Important
Make note of the name of the pool. It will be needed in Section 6.4.1.2, “Creating Storage Class”.
After this, the pools page is displayed again, and the newly created pool is shown in the table of pools.
Now provide access to this pool through an RBD device. Go to the RDB overview page by selecting "Block→Images"
An overview of the configured RDBs is displayed.
Click the Create button.
Enter the name, and if it is not already selected, select the previously created pool. Select the size of the RBD and confirm the creation by clicking the "CreateRBD" button.
The overview page of the RBDs is shown again. It now contains your newly created RBD.

At this point, the SUSE Enterprise Storage cluster is ready for usage with SAP Data Intelligence.

6 Installing SAP Data Intelligence 3 on top of SUSE CaaSP 4.2 #

6.1 Documentation #

SAP Notes:
- Release Notes for SAP Data Intelligence 3
- Installation Guide for SAP Data Intelligence 3

6.2 Planning the installation with the SAP Maintenance Planner #

For the installation of SAP Data Intelligence, you should start here: SAP Maintenance Planner

Note

You need to have your SAP S-User available.

The landing page of the SAP Maintenance Planner looks as follows:
Figure 1: SAP Maintenance Planner Start page #

Click "Plan a New System" on the right.
The next page displayed looks as follows:
Figure 2: SAP Maintenance Planner: Select Plan #

You will see a circle where all options except the option "Plan" are greyed out. Click the "Plan" option.
The next page shows the "Define Change" step of your planning:
Figure 3: SAP Maintenance Planner: Select Container Based Product #
On the left, there is a window with three toggle buttons. Select "CONTAINER BASED" and click "OK":
Figure 4: SAP Maintenance Planner: Select Container Based Product #2 #
To the right, the option "SAP DATA INTELLIGENCE" should appear. When you select it, a sub-selection should open with choices for "SAP DATA INTELLIGENCE 3" and "SAP DATA HUB 2". Select "SAP DATA INTELLIGENCE 3":
Figure 5: SAP Maintenance Planner: Select Data Intelligence 3 #
A pop-up window will appear to inform you about the related SAP note. Click "Continue" to proceed:
Figure 6: SAP Maintenance Planner: Select Continue #
On the right hand side, a drop-down box is shown with "Select Support Package Stack". Click this, and select from the available patch levels as needed:
Figure 7: SAP Maintenance Planner: Select from available patch levels as you need. #
To the left, the sub-selection for "SAP DATA INTELLIGENCE 3" will need changes. Select what you need and click the "Confirm Selection" at the very right:
Figure 8: SAP Maintenance Planner: Select according your needs and confirm. #
An overview of your selection is shown. If this fits your needs, click the "Next" button at the upper right corner:
Figure 9: SAP Maintenance Planner: Select next if satisfied #
Next, select the operating system upon which SAP Data Intelligence will be installed. Select "Linux on x86_64 64bit" and click "Confirm Selection":
Figure 10: SAP Maintenance Planner: Select Linux and confirm #
The next page shows the preselected files to use and download. Again, click the "Next" button on the upper right:
Figure 11: SAP Maintenance Planner: Confirm #
You should now arrive at the "Download Files" page. The required SLC bridge is already preselected. Click "Next" to proceed:
Figure 12: SAP Maintenance Planner: Execute Plan #
Your maintenance plan is shown as PDF. Confirm everything by clicking the "Execute Plan" button on the upper right side:
Figure 13: SAP Maintenance Planner: Download Stack.xml and SLC Bridge Installer #
Download the SLC Bridge Installer and copy it to your management workstation. You will need this file in Section 6.3, “Installing the SAP SLC Bridge”.
You will be prompted to enter the FQDN and the port of the machine your SLC bridge will run on:
Figure 14: SAP Maintenance Planner: Enter FQDN of host where the SLC Bridge will run #
Fill in the values. An example looks as follows:
Figure 15: SAP Maintenance Planner: Example for host and port #

6.3 Installing the SAP SLC Bridge #

Download the file containing the SLC Bridge Installer.
If you have not already done so, copy this file to the management workstation.

Run the SLC Bridge Installer on the management workstation.
```
$ ./SLCB01_<YOUR DOWNLOADED VERSION>.EXE init
```
Figure 16: SAP SLC Bridge #
This interactive script gathers all the necessary information to run the SAP SLC Bridge, and at the end, deploys it into the CaaSP cluster.
Figure 17: SAP SLC Bridge #

Identify the service port for the SLC Bridge:

# kubectl -n sap-slcbridge get pods
NAME                              READY   STATUS    RESTARTS   AGE
di-platform-full-product-bridge   2/2     Running   0          3d23h
slcbridgebase-858f895bd6-74gps    2/2     Running   1          10d
# kubectl -n sap-slcbridge get svc
NAME                                      TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)          AGE
di-platform-full-product-bridge-service   ClusterIP   10.101.2.224   <none>        9000/TCP         3d23h
slcbridgebase-service                     NodePort    10.97.79.26    <none>        9000:30778/TCP   10d

In our example, the port number on which the SLC Bridge listens is 30778.

Make a note of this information. It is needed for the installation process via SAP Maintenance Planner.
Figure 18: SAP SLC Bridge #

6.4 Installing SAP Data Intelligence 3 #

This section describes the installation of SAP Data Intelligence 3 on top of SUSE CaaSP 4.2.

6.4.1 Preparations #

Before the installation of SAP DI 3 can start, some preparation work must be done:

Create a namespace on the Kubernetes cluster.
Define a (default) storage class on the Kubernetes cluster.
Adapt PodSecurityPolicies.
Create the necessary ClusterRoleBindings.
If you use self-signed certificates for the private registry, a special secret must be created.

Note

Unless otherwise specified, all these tasks are run from the management workstation.

6.4.1.1 Creating namespace for SAP Data Intelligence 3 on Kubernetes #

Define the namespace into which SAP Data Intelligence 3 will be installed:

$ kubectl create namespace <YOUR NAMESPACE>

6.4.1.2 Creating Storage Class #

Create the storage class to provide volumes for SAP Data Intelligence 3 on SUSE Enterprise Storage.
Make sure that you have:
- the connection data for your SUSE Enterprise Storage at hand
- the IP addresses and port number (default: 6789) of the monitor nodes of your SES cluster
- created a data pool on your SES cluster for use with SAP Data Intelligence 3
- the name of this pool (datahub in this example) available

Edit the example below to fit your environment.

$ cat > storageClass.yaml <<EOF
apiVersion: storage.kubernetes.io/v1
kind: StorageClass
metadata:
  annotations:
    storageclass.kubernetes.io/is-default-class: "true"
  name: datahub
  namespace: default
parameters:
  adminId: admin
  adminSecretName: ceph-admin-secret
  adminSecretNamespace:  default
  imageFeatures: layering
  imageFormat: "2"
  monitors: <IP ADDRESS OF MONITOR 1>:6789, <IP ADDRESS OF MONITOR 2>:6789, <IP ADDRESS OF MONITOR 3 >:6789
  pool: datahub
  userId: admin
  userSecretName: ceph-user-secret
provisioner: kubernetes.io/rbd
reclaimPolicy: Delete
volumeBindingMode: Immediate
EOF

$ kubectl create -f storageClass.yaml

Create secrets for the StorageClass.

Create the secrets needed to access the storage.

Obtain the keys from your SES cluster. These are located in ceph.admin.keyring and ceph.user.keyring.

You must encode the keys with base64.

$ echo <YOUR KEY HERE> | base64

$ cat > ceph-admin-secret.yaml <<EOF
apiVersion: v1
kind: Secret
metadata:
    name: ceph-admin-secret
type: "kubernetes.io/rbd"
data:
   key: <YOUR BASE64 ENCODED KEY HERE>
EOF

$ cat > ceph-user-secret.yaml <<EOF
apiVersion: v1
kind: Secret
metadata:
    name: ceph-user-secret
type: "kubernetes.io/rbd"
data:
   key: <YOUR BASE64 ENCODED KEY HERE>
EOF

$ kubectl apply -f ceph-admin-secret.yaml
$ kubectl apply -f ceph-user-secret.yaml

Create the credentials for accessing the StorageClass from the namespace where DI 3 will be installed into.

$ kubectl -n <YOUR NAMESPACE FOR DI 3> create -f ceph-admin-secret.yaml
$ kubectl -n <YOUR NAMESPACE FOR DI 3> create -f ceph-user-secret.yaml

6.4.1.3 Creating `PodSecurityPolicies` and `ClusterRoleBindings` #

PodSecurityPolicies
```
$ kubectl edit psp suse.caasp.psp.privileged
```
Change the pathPrefix in allowedHostPaths to /

ClusterRoleBindings

$ cat > clusterrolebinding.yaml << EOF
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: suse:caasp:psp:privileged:default
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: suse:caasp:psp:privileged
subjects:
- kind: ServiceAccount
  name: default
  namespace: XXX
- kind: ServiceAccount
  name: vora-vsystem-XXX
  namespace: XXX
- kind: ServiceAccount
  name: vora-vsystem-XXX-vrep
  namespace: XXX
- kind: ServiceAccount
  name: XXX-elasticsearch
  namespace: XXX
- kind: ServiceAccount
  name: XXX-fluentd
  namespace: XXX
- kind: ServiceAccount
  name: XXX-nodeexporter
  namespace: XXX
- kind: ServiceAccount
  name: vora-vflow-server
  namespace: XXX
- kind: ServiceAccount
  name: mlf-deployment-api
  namespace: XXX
EOF
$ sed -i s/XXX/<your-di-namespace>/g clusterrolebinding.yaml
$ kubectl apply -f clusterrolebinding.yaml

Additional changes

$ kubectl edit clusterrolebinding system:node

Insert the following at the end of the file:

subjects:
- apiGroup: rbac.authorization.k8s.io
  kind: Group
  name: system:nodes

If you use self-signed SSL certificates for the secure private registry, create a secret for accessing this registry.
Note
The certificate chain should be saved in pem format into a single file called cert.
```
export NAMESPACE=<your namespace>
mv cert cert_with_carriage_return
tr -d '\r' < cert_with_carriage_return > cert
kubectl create secret generic cmcertificates --from-file=cert -n $NAMESPACE
```

6.4.2 Installing SAP Data Intelligence 3 #

After you successfully finished the preparation stages, proceed with the installation of SAP Data Intelligence 3. To do so, several steps must be executed.

6.4.2.1 Connecting to the SLC Bridge #

Point your browser to the SLC Bridge service:
- https://<yournode>:<yourport>/docs/index.html
Fill in your credentials you created during the deployment of the SLC Bridge.

6.4.2.2 Installing the workflow #

Connect and authenticate to the SLC Bridge service created above. Use the credentials created during the setup of the SLC Bridge:
Figure 19: Connect and authenticate to the SLCB serive #
Select "Planned software Changes":
Figure 20: Installation select planned software changes #
Select the SAP Data Intelligence deployment required by your needs. Click "Next":
Figure 21: Installation Select the SAP DI deployment you want to install, for example SAP DI Platform Full #
Enter the Kubernetes namespace created beforehand, for example di310. Click "Next":
Figure 22: Installation Pre-requisites Check #

Figure 23: Installation Enter kubernetes namespace #
Select "Advanced Installation":
Figure 24: Installation select advanced installation #
Enter the URI of your Private secure registry. Click "Next":
Figure 25: Installation Private Container registry #
Enter a password for the system tenant in SAP DI 3.0:
Figure 26: Installation System tenant password #
Assign a name to the initially created tenant, for example "default":
Figure 27: Installation create default tenant #
Create the administrator user for the default tenant in SAP DI 3.0:
Figure 28: Installation Admin user name of default tenant #
Set the password for the administrator user of the default tenant:
Figure 29: Installation set admin user password #
If you need a proxy to connect to the Internet, set the proxy settings accordingly:
Figure 30: Installation proxy settings #
Select if you want to use a checkpoint storage:
Figure 31: Installation configure checkpoint storage #
Define the storage class that should be used by SAP DI 3.0. Enter the name of the storage class you created previously:
Figure 32: Installation Define storage class to be used #
For the SAP DI 3 installation on SUSE CaaSP 4.2 the docker log path needs to be adapted. Check the check box and click "Next":
Figure 33: Installation Docker log path #
Enter the docker log path: "/var/log/containers"
Figure 34: Installation Docker log path #
Enable Kaniko:
Figure 35: Installation Enable usage of kaniko #
Here, a different private registry can be configured if needed. To proceed, click "Next":
Figure 36: Installation Docker registry for SAP DI Modeler images #
Enable the loading of NFS kernel modules. This ensures that the NFS kernel modules are loaded on all Kubernetes nodes. Check the check box and click "Next":
Figure 37: Installation Load NFS kernel modules #
If needed, enable Network policies. Click "Next":
Figure 38: Installation Enable Network policies #
Configure timeout during installation, leave the default and click "Next":
Figure 39: Installation Configure timeout during installation of SAP DI 3 #
In the field "Additional Installation Parameters", enter:
-e diagnostic.fluentd.logDriverFormat=regexp -e vsystem.vRep.exportsMask=true
Figure 40: Installation Additional Installation Parameters #

Figure 41: Installation #24 #

Check the Summary page. Check if the settings are correct:
Figure 42: Summary of Installation parameters #
Click "Next" to start the deployment of SAP DI 3.0.

Your installation should now be finished.

7 Legal notice #

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled "GNU Free Documentation License".

SUSE, the SUSE logo and YaST are registered trademarks of SUSE LLC in the United States and other countries. For SUSE trademarks, see https://www.suse.com/company/legal/.

Linux is a registered trademark of Linus Torvalds. All other names or trademarks mentioned in this document may be trademarks or registered trademarks of their respective owners.

Documents published as part of the SUSE Best Practices series have been contributed voluntarily by SUSE employees and third parties. They are meant to serve as examples of how particular actions can be performed. They have been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. SUSE cannot verify that actions described in these documents do what is claimed or whether actions described have unintended consequences. SUSE LLC, its affiliates, the authors, and the translators may not be held liable for possible errors or the consequences thereof.

Below we draw your attention to the license under which the articles are published.

8 GNU Free Documentation License #

Copyright © 2000, 2001, 2002 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

0. PREAMBLE#

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This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.

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The Document may include Warranty Disclaimers next to the notice which states that this License applies to the Document. These Warranty Disclaimers are considered to be included by reference in this License, but only as regards disclaiming warranties: any other implication that these Warranty Disclaimers may have is void and has no effect on the meaning of this License.

2. VERBATIM COPYING#

You may copy and distribute the Document in any medium, either commercially or noncommercially, provided that this License, the copyright notices, and the license notice saying this License applies to the Document are reproduced in all copies, and that you add no other conditions whatsoever to those of this License. You may not use technical measures to obstruct or control the reading or further copying of the copies you make or distribute. However, you may accept compensation in exchange for copies. If you distribute a large enough number of copies you must also follow the conditions in section 3.

You may also lend copies, under the same conditions stated above, and you may publicly display copies.

3. COPYING IN QUANTITY#

If you publish printed copies (or copies in media that commonly have printed covers) of the Document, numbering more than 100, and the Document’s license notice requires Cover Texts, you must enclose the copies in covers that carry, clearly and legibly, all these Cover Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on the back cover. Both covers must also clearly and legibly identify you as the publisher of these copies. The front cover must present the full title with all words of the title equally prominent and visible. You may add other material on the covers in addition. Copying with changes limited to the covers, as long as they preserve the title of the Document and satisfy these conditions, can be treated as verbatim copying in other respects.

If the required texts for either cover are too voluminous to fit legibly, you should put the first ones listed (as many as fit reasonably) on the actual cover, and continue the rest onto adjacent pages.

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It is requested, but not required, that you contact the authors of the Document well before redistributing any large number of copies, to give them a chance to provide you with an updated version of the Document.

4. MODIFICATIONS#

You may copy and distribute a Modified Version of the Document under the conditions of sections 2 and 3 above, provided that you release the Modified Version under precisely this License, with the Modified Version filling the role of the Document, thus licensing distribution and modification of the Modified Version to whoever possesses a copy of it. In addition, you must do these things in the Modified Version:

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State on the Title page the name of the publisher of the Modified Version, as the publisher.
Preserve all the copyright notices of the Document.
Add an appropriate copyright notice for your modifications adjacent to the other copyright notices.
Include, immediately after the copyright notices, a license notice giving the public permission to use the Modified Version under the terms of this License, in the form shown in the Addendum below.
Preserve in that license notice the full lists of Invariant Sections and required Cover Texts given in the Document’s license notice.
Include an unaltered copy of this License.
Preserve the section Entitled "History", Preserve its Title, and add to it an item stating at least the title, year, new authors, and publisher of the Modified Version as given on the Title Page. If there is no section Entitled "History" in the Document, create one stating the title, year, authors, and publisher of the Document as given on its Title Page, then add an item describing the Modified Version as stated in the previous sentence.
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For any section Entitled "Acknowledgements" or "Dedications", Preserve the Title of the section, and preserve in the section all the substance and tone of each of the contributor acknowledgements and/or dedications given therein.
Preserve all the Invariant Sections of the Document, unaltered in their text and in their titles. Section numbers or the equivalent are not considered part of the section titles.
Delete any section Entitled "Endorsements". Such a section may not be included in the Modified Version.
Do not retitle any existing section to be Entitled "Endorsements" or to conflict in title with any Invariant Section.
Preserve any Warranty Disclaimers.

If the Modified Version includes new front-matter sections or appendices that qualify as Secondary Sections and contain no material copied from the Document, you may at your option designate some or all of these sections as invariant. To do this, add their titles to the list of Invariant Sections in the Modified Version’s license notice. These titles must be distinct from any other section titles.

You may add a section Entitled "Endorsements", provided it contains nothing but endorsements of your Modified Version by various parties—for example, statements of peer review or that the text has been approved by an organization as the authoritative definition of a standard.

You may add a passage of up to five words as a Front-Cover Text, and a passage of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts in the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover Text may be added by (or through arrangements made by) any one entity. If the Document already includes a cover text for the same cover, previously added by you or by arrangement made by the same entity you are acting on behalf of, you may not add another; but you may replace the old one, on explicit permission from the previous publisher that added the old one.

The author(s) and publisher(s) of the Document do not by this License give permission to use their names for publicity for or to assert or imply endorsement of any Modified Version.

5. COMBINING DOCUMENTS#

You may combine the Document with other documents released under this License, under the terms defined in section 4 above for modified versions, provided that you include in the combination all of the Invariant Sections of all of the original documents, unmodified, and list them all as Invariant Sections of your combined work in its license notice, and that you preserve all their Warranty Disclaimers.

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In the combination, you must combine any sections Entitled "History" in the various original documents, forming one section Entitled "History"; likewise combine any sections Entitled "Acknowledgements", and any sections Entitled "Dedications". You must delete all sections Entitled "Endorsements".

6. COLLECTIONS OF DOCUMENTS#

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8. TRANSLATION#

Translation is considered a kind of modification, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections in addition to the original versions of these Invariant Sections. You may include a translation of this License, and all the license notices in the Document, and any Warranty Disclaimers, provided that you also include the original English version of this License and the original versions of those notices and disclaimers. In case of a disagreement between the translation and the original version of this License or a notice or disclaimer, the original version will prevail.

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9. TERMINATION#

You may not copy, modify, sublicense, or distribute the Document except as expressly provided for under this License. Any other attempt to copy, modify, sublicense or distribute the Document is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance.

10. FUTURE REVISIONS OF THIS LICENSE#

The Free Software Foundation may publish new, revised versions of the GNU Free Documentation License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. See http://www.gnu.org/copyleft/.

Each version of the License is given a distinguishing version number. If the Document specifies that a particular numbered version of this License "or any later version" applies to it, you have the option of following the terms and conditions either of that specified version or of any later version that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you may choose any version ever published (not as a draft) by the Free Software Foundation.

ADDENDUM: How to use this License for your documents#

Copyright (c) YEAR YOUR NAME.
   Permission is granted to copy, distribute and/or modify this document
   under the terms of the GNU Free Documentation License, Version 1.2
   or any later version published by the Free Software Foundation;
   with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
   A copy of the license is included in the section entitled “GNU
   Free Documentation License”.

If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace the “ with…Texts.” line with this:

with the Invariant Sections being LIST THEIR TITLES, with the
   Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.

If you have Invariant Sections without Cover Texts, or some other combination of the three, merge those two alternatives to suit the situation.

If your document contains nontrivial examples of program code, we recommend releasing these examples in parallel under your choice of free software license, such as the GNU General Public License, to permit their use in free software.

SAP Data Intelligence 3 on CaaS Platform 4.2 #

Installation Guide

1 Introduction #

2 Prerequisites #

2.1 Hardware #

2.2 Software #

3 Installing SUSE CaaSP 4.2 #

3.1 Documentation #

3.2 Preparations #

3.3 Installing the SUSE CaaSP 4 cluster nodes #

3.4 Installing the loadbalancer for the Kubernetes cluster #

3.5 Installing the management workstation #

3.6 Bootstrapping the SUSE CaaSP 4 cluster #

4 Adding secure private Docker Registry for container images #

4.1 Prerequistes #

4.2 Setting up Harbor #

4.3 Verifying configuration and setting up Harbor projects #

5 SUSE Enterprise Storage #

5.1 Before starting #

5.2 Setting up the machines #

5.3 Setting up SUSE Enterprise Storage #

5.3.1 Preparing the nodes #

5.3.2 Deploying the cluster #

5.4 Access the dashboard and create a new pool #

6 Installing SAP Data Intelligence 3 on top of SUSE CaaSP 4.2 #

6.1 Documentation #

6.2 Planning the installation with the SAP Maintenance Planner #

6.3 Installing the SAP SLC Bridge #

6.4 Installing SAP Data Intelligence 3 #

6.4.1 Preparations #

6.4.1.1 Creating namespace for SAP Data Intelligence 3 on Kubernetes #

6.4.1.2 Creating Storage Class #

6.4.1.3 Creating PodSecurityPolicies and ClusterRoleBindings #

6.4.2 Installing SAP Data Intelligence 3 #

6.4.2.1 Connecting to the SLC Bridge #

6.4.2.2 Installing the workflow #

7 Legal notice #

8 GNU Free Documentation License #

0. PREAMBLE#

1. APPLICABILITY AND DEFINITIONS#

2. VERBATIM COPYING#

3. COPYING IN QUANTITY#

4. MODIFICATIONS#

5. COMBINING DOCUMENTS#

6. COLLECTIONS OF DOCUMENTS#

7. AGGREGATION WITH INDEPENDENT WORKS#

8. TRANSLATION#

9. TERMINATION#

10. FUTURE REVISIONS OF THIS LICENSE#

ADDENDUM: How to use this License for your documents#

6.4.1.3 Creating `PodSecurityPolicies` and `ClusterRoleBindings` #