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Migr_worker_use_fip needs to be set to True if the Coriolis instance is not directly connected or routed to migr_network_name Coriolis will need to be able to connect to those instances though this network, either directly or through a floating IP. Migr_network_name is the network used by the temporary instances. Migr_image_map contains a map with the names or ids of the Glance images described in the previous section. In particular, the following options need to be configured to match your environment:

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Login via SSH on the Coriolis VM (default credentials in the demo appliance: root / coriolis, it is strongly recommended to change the password in production environments) and use an editor like vi or nano to edit /etc/coriolis/nf and replace the following settings accordingly. Images for OpenStack are available at the following locations:ДЄ few configuration settings are needed when using OpenStack as a target cloud.

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Only one Linux image is needed for migrating any supported Linux distribution and similarly, a single Windows image can handle all supported Windows versions.

The images need cloud-init (Linux) and cloudbase-init (Windows) installed in order for Coriolis to provision instances via Nova metadata (e.g. Glance images for temporary worker instancesД¬oriolis needs two Glance images: a Linux one (Ubuntu 16.04 or CentOS / RHEL / Oracle Linux 7) and a Windows one (Windows Server 2012 R2 or above) that will be used for instantiating temporary workers involved during the replica and migration steps. In the case of VMware, replicas require that Change Block Tracking (CBT) is enabled on the VM configuration. A replicated VM can then be migrated anytime, without any further access to the source infrastructure. In will shut down the VM on the source infrastructure, copy the content of the disks in the target infrastructure, convert the disk type, execute the steps required to run the VM on the target hypervisor (installing drivers, configuring networks, etc) and start the VM.ДЇor more advanced use cases and DRaaS, Coriolis implements replicas to perform incremental copies of the content of the source VM disks on the target environment, which can be performed while the source VM is running. Credentials are encrypted and managed by Barbican for security purposes.ДЄ (cold) migration is the simplest operation performed by Coriolis. The standard Coriolis appliance uses Kolla to deploy the OpenStack components in Docker containers.ДЄll Coriolis micro-service components in the VM appliance (REST API, Conductor, Worker, etc) are deployment in Docker containers via Ansible Playbooks.Д®ndpoints contain the cloud connection details (hostname, credentials, etc) that Coriolis stores in order to access the source and target cloud environments. Once the Coriolis VM starts, it will expose a web interface reachable on the standard HTTPS port and a CLI interface, reachable externally or via a SSH console on the VM itself.Д¬oriolis leverages various OpenStack components, including Keystone (multi-tenancy, identity and service endpoint management) and Barbican (secrets storage and management). This is not needed for disk replica, as defined further on in this document. In case of cold migrations, the disk space will need to be increased to match the disk size of the largest VM being migrated. The minimum requirements for the VM are very straightforward: 2GB RAM (4GB recommended) and a minimum of 20GB of disk space. For large deployments (thousands of VMs being migrated in parallel), it is recommended to distribute the Coriolis services using a container orchestrator (Kubernetes).

Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016ДЇor most cases concerning both private and public clouds, all Coriolis components can be deployed in a single VM, distributed as virtual appliance (OVA) or virtual disk (QCoW2, VMDK, VHDX).

No changes are required in the VM and in particular no agent is required to be installed. Note: all the actions executed by Coriolis leverage the standard API provided by the cloud infrastructure, no admin access is required.Д¬oriolis supports a wide range of operating systems that can be migrated. Other clouds including Google GCE and Oracle Bare Metal Cloud will be supported in upcoming releases.

OpenStack (with KVM, Hyper-V Xen or ESXi compute nodes) Icehouse+.

Supported clouds and virtualization solutions

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This guide explains how to configure Coriolis for OpenStack. More info on Coriolis are available here.

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CoriolisВ® performs software defined migrations of virtual workloads among different clouds and virtualization solutions at scale, supporting also DRaaS (disaster recovery as a service) scenarios.