Installing Db2
An instance administrator can install Db2 on IBM Cloud Pak® for Data Version 4.8.
- Who needs to complete this task?
-
Instance administrator To install Db2, you must be an instance administrator. An instance administrator has permission to install software in the following projects:
- The operators project for the instance
-
The operators for this instance of Cloud Pak for Data are installed in the operators project.
In the installation commands, the
${PROJECT_CPD_INST_OPERATORS}
environment variable refers to the operators project. - The operands project for the instance
-
The Cloud Pak for Data control plane and the services for this instance of Cloud Pak for Data are installed in the operands project.
In the installation commands, the
${PROJECT_CPD_INST_OPERANDS}
environment variable refers to the operands project.
- When do you need to complete this task?
-
Review the following options to determine whether you need to complete this task:
- If you want to install the Cloud Pak for Data control plane and one or more services at the same time, follow the process in Installing an instance of Cloud Pak for Data instead.
- If you didn't install Db2 when you installed the Cloud Pak for Data control plane, complete this task to add Db2 to your environment.
Repeat as needed If you are responsible for multiple instances of Cloud Pak for Data, you can repeat this task to install more instances of Db2 on the cluster.
Information you need to complete this task
Review the following information before you install Db2:
- Version requirements
-
All of the components that are associated with an instance of Cloud Pak for Data must be installed at the same release. For example, if the Cloud Pak for Data control plane is installed at Version 4.8.7, you must install Db2 at Version 4.8.7.
- Environment variables
-
The commands in this task use environment variables so that you can run the commands exactly as written.
- If you don't have the script that defines the environment variables, see Setting up installation environment variables.
- To use the environment variables from the script, you must source the environment variables
before you run the commands in this task. For example,
run:
source ./cpd_vars.sh
- Security context constraint
-
Db2 requires a custom security context constraint (SCC). For more information, see Creating the custom SCC for Db2.
- Storage requirements
- You don't need to specify storage information when you install Db2.
Before you begin
This task assumes that the following prerequisites are met:
Prerequisite | Where to find more information |
---|---|
The cluster meets the minimum requirements for installing Db2. | If this task is not complete, see System requirements. |
The workstation from which you will run the installation is set up as a client workstation
and includes the following command-line interfaces:
|
If this task is not complete, see Setting up a client workstation. |
The Cloud Pak for Data control plane is installed. | If this task is not complete, see Installing an instance of Cloud Pak for Data. |
For environments that use a private container registry, such as air-gapped environments, the Db2 software images are mirrored to the private container registry. | If this task is not complete, see Mirroring images to a private container registry. |
For environments that use a private container registry, such as air-gapped
environments, the cpd-cli is configured to pull the olm-utils-v2 image from the private container registry. |
If this task is not complete, see Pulling the olm-utils-v2 image from the private container registry. |
The custom security context constraint (SCC) for Db2 exists. | If this task is not complete, see Creating the custom SCC for Db2. |
The node settings are adjusted for Db2. | If this task is not complete, see Changing required node settings. |
Procedure
Complete the following tasks to install Db2:
Installing the service
To install Db2:
-
Log the
cpd-cli
in to the Red Hat® OpenShift Container Platform cluster:${CPDM_OC_LOGIN}
Remember:CPDM_OC_LOGIN
is an alias for thecpd-cli manage login-to-ocp
command. - Run the following command to create the required OLM objects for Db2 in the
operators project for the
instance:
cpd-cli manage apply-olm \ --release=${VERSION} \ --cpd_operator_ns=${PROJECT_CPD_INST_OPERATORS} \ --components=db2oltp
Wait for thecpd-cli
to return the following message before you proceed to the next step:[SUCCESS]... The apply-olm command ran successfully
If the
apply-olm
fails, see Troubleshooting the apply-olm command during installation or upgrade. - Create the custom resource for Db2.
cpd-cli manage apply-cr \ --components=db2oltp \ --release=${VERSION} \ --cpd_instance_ns=${PROJECT_CPD_INST_OPERANDS} \ --license_acceptance=true
Validating the installation
apply-cr
command
returns:[SUCCESS]... The apply-cr command ran successfully
If you want to confirm that the custom resource status is
Completed
, you can run the cpd-cli
manage
get-cr-status
command:
cpd-cli manage get-cr-status \
--cpd_instance_ns=${PROJECT_CPD_INST_OPERANDS} \
--components=db2oltp
What to do next
You must complete Post-installation setup for the Db2 service before users can access the Db2 service.
You can also set up Replication of data for Db2.