Launch Configuration

To create an Auto-Scaling Group, a Launch Configuration must be created in advance.

Create Launch Configuration

You can create and use the Launch Configuration service in the Samsung Cloud Platform Console.

To create a Launch Configuration, follow these steps.

1. All Services > Compute > Virtual Server menu, please click. 1. Navigate to the Service Home page of the Virtual Server.

2. Click the Launch Configuration menu. 2. Go to the Launch Configuration List page.

3. On the Launch Configuration List page, click the Create Launch Configuration button. 3. Go to the Launch Configuration creation page.

4. On the Launch Configuration creation page, in the Image and version selection area, select the required information and click the Next button.

   Reference

   • Refer to the Virtual Server OS Image 제공 버전 for the images selectable in the Launch Configuration.
   • In Custom Image, you can select Image-Based and Snapshot-Based images.
     • Snapshot-Based type Image does not support future features such as distributed disk deployment, so for a stable Auto-Scaling configuration, we recommend using Image-Based type Image.
     • Image-Based type Image generation details can be found in Image-Based 유형의 Image 생성하기.

5. Enter the required information in the Service Information Input area of the Launch Configurationp creation page.

   Category	Required status	Detailed description
   Launch Configuration name	Essential	Launch Configuration name a name to distinguish the Launch Configuration
   Service Type > Server Type	Essential	Server type of Launch Configuration Standard: Standard specification commonly used High Capacity: Large‑capacity server specification above Standard Refer to Virtual Server 서버 타입 for selectable server types Since supported Availability Zones may differ by server type, verification is required via Support Center > Contact Us
   Block Storage	Required	Configure Block Storage according to the purpose of the Launch Configuration Basic OS: The area where the OS is installed and used Enter the size in Units; the minimum size varies depending on the OS Image type Alma Linux: Enter a value between 2 and 1,536 Oracle Linux: Enter a value between 5 and 1,536 RHEL: Enter a value between 2 and 1,536 Rocky Linux: Enter a value between 2 and 1,536 Ubuntu: Enter a value between 1 and 1,536 Windows: Enter a value between 4 and 1,536 SSD: High‑performance general volume HDD: General volume SSD/HDD_KMS: Additional encrypted volume using Samsung Cloud Platform KMS (Key Management System) encryption keys Encryption can be applied only at initial creation and cannot be changed afterward Using the SSD_KMS disk type may result in performance degradation Additional: Use when extra space beyond the OS area is needed After selecting Use, enter the storage type and size Click the + button to add storage, or the x button to delete (up to 25 can be added) Enter the size in Units, with a value between 1 and 1,536 Since 1 Unit equals 8 GB, this creates 8 ~ 12,288 GB SSD: High‑performance general volume HDD: General volume SSD/HDD_KMS: Additional encrypted volume using Samsung Cloud Platform KMS (Key Management System) encryption keys Encryption can be applied only at initial creation and cannot be changed afterward Using the SSD_KMS disk type may result in performance degradation SSD_MultiAttach: Volume that can be attached to more than one server For details on each Block Storage type, refer to Create Block Storage ___HTML_MARKER***
   Keypair	Essential	Select the user authentication method for the Launch Configuration Server authentication information for accessing the servers created by generating an Auto-Scaling Group with a Launch Configuration New creation: Create a new one if a new Keypair is needed Refer to Keypair 생성하기 for how to create a new Keypair Default login account list by OS Alma Linux: almalinux RHEL: cloud-user Rocky Linux: rocky Ubuntu: ubuntu Windows: sysadmin
   File Storage Settings	Selection	When performing Scale-out/Scale-in, you can configure File Storage to be automatically attached Volume: After clicking the Select button, choose the Volume to use in the File Storage selection popup You can select up to a maximum of 5 Only Volumes intended as source that can be attached to a Virtual Server can be selected High‑performance SSDs are disabled because they cannot be attached to a Virtual Server The selected Volume can be removed by clicking the X button

   Table. Launch Configuration service information input items

6. On the Launch Configuration Creation page, after entering information in the Additional Information Input area, click the Next button.

   Category	required status	Detailed description
   Init Script	Selection	The script that runs when a server in an Auto-Scaling Group using a Launch Configuration starts Enter within 45,000 bytes The Init Script must be a batch script for Windows, a shell script for Linux, or cloud‑init, depending on the selected image.
   tag	Selection	Add Tag Up to 50 per resource can be added Add Tag After clicking the Add Tag button, enter or select Key, Value values

   Table. Launch Configuration additional information entry fields

7. On the Check Creation Information page, verify the entered information and the estimated amount, then click the Create button.

   • When creation is complete, verify the created Launch Configuration on the Launch Configuration list page.

Launch Configuration View detailed information

The Launch Configuration service lets you view and edit the complete list of resources and their detailed information. On the Launch Configuration Details page, it consists of Detailed Information, Tags, Operation History tabs.

To view the detailed information of the Launch Configuration, follow these steps.

1. All Services > Compute > Virtual Server Click the menu. 1. Navigate to the Service Home page of the Virtual Server.
2. Click the Launch Configuration menu. 2. Go to the Launch Configuration list page.
3. Launch Configuration List On the page, click the resource to view detailed information. 3. Launch Configuration Details Navigate to the page.
   • Launch Configuration Details At the top of the page, status information and additional feature information are displayed, and it consists of Details, Tags, Activity History tabs.

     Category	Detailed description
     Launch Configuration status	The status of the user-created Launch Configuration Active: available
     Delete Launch Configuration	Delete Launch Configuration button

     Table. Launch Configuration status information and additional features

Detailed Information

Launch Configuration List page allows you to view detailed information of the selected resource and, if necessary, modify the information.

Tag

On the Launch Configuration list page, you can view the tag information of the selected resource, and add, modify, or delete it.

Operation History

Launch Configuration List page allows you to view the operation history of the selected resource.

Launch Configuration Resource Management

Explains the resource management function of Launch Configuration.

Generate Image-Based type Image

To create an Image of the Image-Based type, follow the steps below.

To create an Image of the Image-Based type, follow the steps below.

1. Click the All Services > Compute > Virtual Server menu. 1. Navigate to the Service Home page of the Virtual Server.
2. On the Service Home page, click the Image menu. 2. Go to the Image list page.
3. On the Image List page, click the Image to create an Image of the Image-Based type. 3. Image Details go to the page.
4. Create Image for Sharing button, click it. 4. A popup window opens to notify the creation of a shared Image. 4. The popup’s ‘Share to another Account’ content will not be processed. 4. If you only proceed with ‘Create Image for sharing’, an Image-Based type Image will be generated.
5. After reviewing the contents of the popup window, click the Confirm button.

Delete Launch Configuration

Deleting unused Launch Configurations can reduce operating costs. However, terminating the Launch Configuration may cause the running service to stop immediately, so you should proceed with the termination only after fully considering the impact of service interruption.

To delete a Launch Configuration, follow these steps.

1. Click the All Services > Compute > Virtual Server menu. 1. Navigate to the Service Home page of the Virtual Server.
2. Click the Launch Configuration menu. 2. Go to the Launch Configuration List page.
3. Launch Configuration List On the page, click the resource to be terminated. 3. Navigate to the Launch Configuration Details page.
4. Click the Delete Launch Configuration button.
5. After the deletion is complete, verify on the Launch Configuration list page that the resource has been deleted.