mtc-showcase

This repository is used to showcase the capabilities of the Migration Toolkit for Containers (MTC).

In the base directory, you will find the default objects needed for the MTC Operator to work, such as:

• Namespace;
  
• OperatorGroup;
  
• Subscription;
  
• MigrationController (installed CRD).
  

In the overlays directory, you will find the various host types:

• host, the OCP Cluster where the Migration Controller / UI will be located (usually the target cluster, but can be an external one):
  • ObjectBucketClaim because an S3 bucket is required by the migration process (note: we are using OpenShift Data Foundation as the S3 provider in this example, which is provided here: https://github.com/lpanza/multicluster-devsecops);
  • a Kustomize patch to add the Migration Controller and Migration UI capabilities to the MigrationController already defined in base.
• source, the OCP Cluster where the migration process will start:
  • test-migration Namespace where we are going to set up our workload;
  • mariadb all the required objects to create a stateful application based on MariaDB;
    • This directory also contains a job to automatically create a table and fill it with test rows;
  • nginx all the required objects to create a stateless application based on Nginx;
• target the OCP Cluster where the source workload will be migrated, so the overlay just consists of the base resources.
  

In order to apply the changes to the desired cluster scope, run:

### Using Kustomize
kustomize build overlays/<role>/ | oc apply -f -

### Using the oc binary
oc apply -k overlays/<role>/