Introduction

This page will guide you through the process of migrating from a Kiuwan On-Premises single-container installation carried out with the deprecated installation tool docker-for-kiuwan.

Migration process

Step 1: upgrade your single-container installation

First of all, you will need to upgrade your current installation to the latest available. A complete upgrade (both Kiuwan and clients) will be needed.

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Once the upgrade is completed, you should see this versions in the KOP system administration console:

Step 2: stop the old Kiuwan On-Premises server

First, make sure there are no running analysis before stopping the application server. You can check this in the sysadmin console:

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docker exec -it [kiuwan_on_premise_container_name] /bin/bash
supervisorctl stop wildfly
exit

Step 3: backup your data

Now that the application server is stopped but not the container itself, you can access the MySQL server and persistent volume to backup your data.

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• $DIR_PERSISTENT_VOLUME/$KIUWAN_HOST/KiuwanCentralWorkingDirectory
• $DIR_PERSISTENT_VOLUME/$KIUWAN_HOST/repos/kiuwanSourceCodeRepository

Step 4: install a new Kiuwan On-Premises using the new installer tool (kiuwan-cluster)

Follow the steps provided in the Kiuwan On-Premises Installation Guide to prepare the new installation of Kiuwan On-Premises, but do NOT perform the installation step (that may be executing install.sh or other scripts depending on your installation needs).

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If it is mandatory for you to use the same machine to install the new Kiuwan On-Premises, please make sure no persistent volume paths collide.

Step 5: restore the repository data

To restore the repository data into the new persistent volumes, copy the persistent volume backup to these folders:

1. KiuwanCentralWorkingDirectory should be copied to [VOLUMES_DIR]/data-shared/repos/kiuwanCentralRepository 
2. kiuwanSourceCodeRepository should be copied to [VOLUMES_DIR]/data-shared/repos/kiuwanSourceCodeRepository 

Step 6: start new Kiuwan On-Premises infrastructure

Execute these commands to create and start the new Kiuwan On-Premises infrastructure:

cd [INSTALL_DIR]/docker
sudo ./create-network.sh
sudo ./install-infrastructure.sh
sudo ./start-infrastructure.sh

Step 7: restore the database

Restore the MySQL backup, either using mysqldump or MySQL Workbench restore utility (import from self-contained file is recommended).

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UPDATE opt_cinc.INFRA_TENANT_METADATA SET connectionUrls = '[MYSQL_HOST]:[MYSQL_PORT]' WHERE tenantId <> '0';

Step 8: complete the migration process

This last step forces Kiuwan On-Premises to update to the current version (the one tied to the used kiuwan-cluster distribution). Execute in your new Kiuwan host console:

echo "2.8.1904.8" > [VOLUMES_DIR]/data-shared/publicData/current.version
cd [INSTALL_DIR]/docker
sudo ./update.sh
sudo ./start-kiuwan.sh

Step 9: check your data and discard the old installation

Once the Kiuwan On-Premises servers are up, you can access your new installation using the same username and password and all the previous data will be there.

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