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en:services:server_services:gwdg_cloud_server:instances_manual [2021/08/09 11:19] – [Create and Manage Instances] ssadeghen:services:server_services:gwdg_cloud_server:instances_manual [2022/10/20 12:32] (current) – [Create your first instance] msrba
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 +====== Create and Manage Instances ======
 +\\ 
 +This manual provide a quick help on how to create, delete, and resize your instance using [[https://cloud.gwdg.de/horizon/project/instances/| Instances Dashboard]].
 +
 +**To login:** \\
 +Authenticate using: Keystone Credentials \\
 +Domain: gwdg \\
 +User Name: your academic email (e.g. myname@gwdg.de) \\
 +Password: your Password \\
 +===== Create your first instance =====
 +In GWDG horizon dashboard, you can create a virtual machine by following these steps:
 +
 +<WRAP Group> <WRAP column half> 1- From the left menu bar, select project->compute→Instances and then click "launch Instance" </WRAP><WRAP column half>  {{:en:services:server_services:gwdg_cloud_server:new:lunch_instance_buttom.png?direct&400|}}</WRAP></WRAP>
 +
 +<WRAP Group> <WRAP column half> 2- Determine an instance name and click "next". </WRAP><WRAP column half> {{:en:services:server_services:gwdg_cloud_server:new:lunch_instance_1_name.png?direct&400|}} </WRAP></WRAP>
 +
 +<WRAP Group> <WRAP column half> 3- For the source of an instance, there are several options:</WRAP><WRAP column half>  </WRAP></WRAP> 
 +<WRAP Group> <WRAP column half>
 +    * **Image with a root volume:**  
 +        * From "Select Boot Source", select image (or instance snapshot if you have one).
 +        * Set "Create New Volume" to Yes.
 +        * Select your desired image from the ones with "(ssd)" in their name. The other options refer to slow, legacy hard disk based storage and will be removed soon!
 +        * Set "Delete Volume on Instance Delete" to No, so the volume won't be deleted by deleting the instance. Then, you would be able to create a new instance (as a copy of current one) using the existing volume.
 +</WRAP><WRAP column half> {{:en:services:server_services:gwdg_cloud_server:new:lunch_instance_2_source_image.png?direct&400|}} </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half>
 +    * **From an existing volume:**
 +        * From "Select Boot Source", select volume (or volume snapshot if you have one).
 +        * Set "Delete Volume on Instance Delete" to No.
 +        * Select your desired volume from the displayed list.
 +</WRAP><WRAP column half> {{:en:services:server_services:gwdg_cloud_server:new:lunch_instance_2_source_volume.png?direct&400|}} </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half>
 +    * **Image without root volume (not recommended):**
 +        * From "Select Boot Source", select image (or instance snapshot if you have one).
 +        * Set "Create New Volume" to No.
 +        * Select your desired image from the ones without ssd in their name.
 +</WRAP><WRAP column half>  </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half> 4- After configuring the source, click "next".</WRAP><WRAP column half>  </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half> 5- Specify your desired flavor which is limited to your quota.</WRAP><WRAP column half> {{:en:services:server_services:gwdg_cloud_server:new:lunch_instance_3_flavor.png?direct&400|}} </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half> 6- Skip "Network" and "Network ports" by clicking "next".</WRAP><WRAP column half>  </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half> 7- If you have any specific security groups rather than default, in "Security Groups" section, select your desired one and remove "default" and click "next".</WRAP><WRAP column half> {{:en:services:server_services:gwdg_cloud_server:new:lunch_instance_6_security.png?direct&400|}} </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half> 8- If you want to connect your instance via ssh, in "Key Pair" section, select (or import) your public ssh keys and then click "Launch Instance".</WRAP><WRAP column half> {{:en:services:server_services:gwdg_cloud_server:new:lunch_instance_7_keys.png?direct&400|}} </WRAP></WRAP> 
 +
 +<WRAP Group> <WRAP column half> 9- Wait until the status of instance is "Active" and the power state shows "Running".</WRAP><WRAP column half> {{:en:services:server_services:gwdg_cloud_server:new:instance_building.png?direct&400|}} \\ 
 +----- \\ {{:en:services:server_services:gwdg_cloud_server:new:instance_running.png?direct&400|}} </WRAP></WRAP> 
 +
 +===== Manage Instances =====
 +\\ 
 +<WRAP Group> <WRAP column half> There are several actions which can be applied on a running instance. You can see the list of them by clicking the small arrow on the very right of each instance row. 
 +
 +You can stop instance from working by either **Pause Instance** , **Suspend Instance** or **Shut Off Instance**. 
 +
 +The instance can be restarted by either **Soft Reboot Instance** or **Hard Reboot Instance**.
 +
 +You can increase the memory or CPU of an instance using **Resize Instance** option. Notice that it is not possible to decrease the resources of an instance. After clicking, in pop-up page, select the new size (should be larger than current size) and click on "Resize".
 +Wait a little until the Status shows "Confirm or Revert Resize/Migrate", then click on the button on the right titled now as "Confirm resize/migrate" and wait until the Status is "Running" again.
 +
 + </WRAP><WRAP column half> {{ :en:services:server_services:gwdg_cloud_server:new:instance_actions.png?direct&200 |}} </WRAP></WRAP>