matbu/vmware-to-openstack-migration.md

## vmware-to-openstack-migration.md

      
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              vmware-to-openstack-migration.md
            
          
    🌐 Run Migration from VMware to OpenStack with OS Migrate

This guide demonstrates a full migration cycle from VMware to OpenStack using the OS Migrate Ansible collection.
You can find all details here:
https://github.com/os-migrate/vmware-migration-kit
https://github.com/os-migrate

Overview

The example assumes you already have a conversion host deployed in your destination OpenStack cloud.
There are multiple ways to use the vmware-migration-kit:

Full migration: Run the provided playbook to migrate VMs.
Discovery mode: Collect and discover ESXi nodes and export data into a JSON file, which can be updated and reused for migration.

In this example, we will execute a full migration cycle using the playbook migration.yml.

1. Pull the OS Migrate Ansible Execution Environment (AEE)

podman pull matbu/aee-fedora-osm

2. Run the AEE Container and Get a Shell

podman run -it matbu/aee-fedora-osm /bin/bash

3. Prepare the VMware Migration Kit Repository

Navigate to the Repository

pushd /root/vmware-migration-kit/vmware_migration_kit
Optional: Update to the Latest Changes

git pull

4. Configure SSH Access to the Conversion Host

Add Your SSH Key

mkdir /root/.ssh/
cat <<EOF > /root/.ssh/conv_host
-----BEGIN OPENSSH PRIVATE KEY-----
XXX
-----END OPENSSH PRIVATE KEY-----
EOF
chmod 600 /root/.ssh/conv_host

5. Prepare the Inventory File

Create and Update inventory.yml

migrator:
  hosts:
    localhost:
      ansible_connection: local
      ansible_python_interpreter: "{{ ansible_playbook_python }}"

conversion_host:
  hosts:
    10.0.79.209:
      ansible_ssh_user: cloud-user
      ansible_ssh_private_key_file: /root/.ssh/conv_host

6. Configure Variables

Copy vars.yaml to Your Working Directory

cp ../vars.yaml .
Update the vars.yaml File


Set the vCenter password and VDDK thumbprint.
Ensure the list of VMware guests is specified in the vms section:

vms:
  - my_vmware_guest_1
  - my_vmware_guest_2

7. Retrieve the VDDK Thumbprint

Run the following command to obtain the VDDK thumbprint:
openssl s_client -connect ESXI_SERVER_NAME:443 </dev/null |
   openssl x509 -in /dev/stdin -fingerprint -sha1 -noout

8. Run the Migration

Execute the migration playbook:
ansible-playbook -i inventory.yml migration.yml -e @vars.yaml

📌 Notes


Replace placeholders (e.g., XXX, IPs, and paths) with actual values.
Ensure the conversion host and VMware environment are properly configured before running the playbook.

Happy migrating! 🎉