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You might want to move your instances from one datacentre to another, either because you would prefer to move to a newly available datacentre or because you want to migrate from RunAbove to Public Cloud.
This guide explains how to transfer instance backup from one datacentre to another so that you don't have to reinstall everything.
Requirements
This guide can also be used to transfer backup from a RunAbove account to Public Cloud
Creating a backup
List existing instances:
root@serveur:~$ nova list
+--------------------------------------+----------------------------------------+--------+------------+-------------+-------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+----------------------------------------+--------+------------+-------------+-------------------------+
| aa7115b3-83df-4375-b2ee-19339041dcfa | Serveur1 | ACTIVE | - | Running | Ext-Net=149.xxx.xxx.254 |
+--------------------------------------+----------------------------------------+--------+------------+-------------+-------------------------+
- Create an instance backup
root@serveur:~$ nova image-create aa7115b3-83df-4375-b2ee-19339041dcfa snap_serveur1
Download the backup
- List available instances:
root@serveur:~$ glance image-list
+--------------------------------------+------------------------+-------------+------------------+-------------+--------+
| ID | Name | Disk Format | Container Format | Size | Status |
+--------------------------------------+------------------------+-------------+------------------+-------------+--------+
| c17f13b5-587f-4304-b550-eb939737289a | Centos 7 | raw | bare | 2149580800 | active |
| 73958794-ecf6-4e68-ab7f-1506eadac05b | Debian 7 | raw | bare | 2149580800 | active |
| bdcb5042-3548-40d0-b06f-79551d3b4377 | Debian 8 | raw | bare | 2149580800 | active |
| 7250cc02-ccc1-4a46-8361-a3d6d9113177 | Fedora 19 | raw | bare | 2149580800 | active |
| 57b9722a-e6e8-4a55-8146-3e36a477eb78 | Fedora 20 | raw | bare | 2149580800 | active |
| 825b785d-8a34-40f5-bdcd-0a3c3c350c5a | snap_serveur1 | qcow2 | bare | 1598029824 | active |
| 3bda2a66-5c24-4b1d-b850-83333b580674 | Ubuntu 12.04 | raw | bare | 2149580800 | active |
| 9bfac38c-688f-4b63-bf3b-69155463c0e7 | Ubuntu 14.04 | raw | bare | 10737418240 | active |
| 6a123897-a5bb-46cd-8f5d-ecf9ab9877f2 | Windows-Server-2012-r2 | raw | bare | 21474836480 | active |
+--------------------------------------+------------------------+-------------+------------------+-------------+--------+
- Identify the backup:
| 825b785d-8a34-40f5-bdcd-0a3c3c350c5a | snap_serveur1 | qcow2 | bare | 1598029824 | active |
- Download the image:
root@serveur:~$ glance image-download --file snap_serveur1.qcow 825b785d-8a34-40f5-bdcd-0a3c3c350c5a
Send the backup
Load new environment variables:
If you are transfering a datacentre within the same project, just change the variable OS_REGION_NAME [/ b]
root@serveur:~$ export OS_REGION_NAME=SBG1
If you are transfering to another project or account, you have to reload the environment variables linked to this account:
root@serveur:~$ source openrc.sh
- Send backup to a new datacentre:
root@serveur:~$ glance image-create --name snap_serveur1 --disk-format qcow2 --container-format bare --file snap_serveur1.qcow
+------------------+--------------------------------------+
| Property | Value |
+------------------+--------------------------------------+
| checksum | 6cebb4104eadde099bb2721ec8c574fb |
| container_format | bare |
| created_at | 2015-10-21T13:26:42 |
| deleted | False |
| deleted_at | None |
| disk_format | qcow2 |
| id | 0a3f5901-2314-438a-a7af-ae984dcbce5c |
| is_public | False |
| min_disk | 0 |
| min_ram | 0 |
| name | snap_serveur1 |
| owner | b3e269xxxxxxxxxxxxxxxxxxxxxxba29 |
| protected | False |
| size | 319356928 |
| status | active |
| updated_at | 2015-10-21T13:26:51 |
| virtual_size | None |
+------------------+--------------------------------------+
Create an instance
- Create an instance, using the backup ID as the image:
root@serveur:~$ nova boot --key_name SSHKEY --flavor 98c1e679-5f2c-4069-b4da-4a4f7179b758 --image 0a3f5901-2314-438a-a7af-ae984dcbce5c Serveur1_from_snap
+--------------------------------------+------------------------------------------------------+
| Property | Value |
+--------------------------------------+------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | - |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | 2Rxxvb4wx2iS |
| config_drive | |
| created | 2015-10-21T13:31:41Z |
| flavor | vps-ssd-1 (98c1e679-5f2c-4069-b4da-4a4f7179b758) |
| hostId | |
| id | 68d38ef7-1b25-40bb-a629-4f91f4b24b59 |
| image | snap_serveur1 (0a3f5901-2314-438a-a7af-ae984dcbce5c) |
| key_name | SSHKEY |
| metadata | {} |
| name | Serveur1_from_snap |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tenant_id | b3e269f057d14af594542d6312b0ba29 |
| updated | 2015-10-21T13:31:41Z |
| user_id | 01e3c1c9c3584311931233798e411ba4 |
+--------------------------------------+------------------------------------------------------+
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