Cloud-Init Scripts

Cloud-init provides one-time instance initialization for Legacy tier (CANADA-1) deployments. Unlike Startup Scripts which are reusable libraries, cloud-init scripts are single-use and configured per deployment.

Availability

Region: CANADA-1
Tier: Legacy

Key Differences: Cloud-Init vs Startup Scripts

Feature	Cloud-Init (Legacy)	Startup Scripts (Advanced)
Regions	CANADA-1 only	Finland-1/2/3, Iceland-1
Reusability	Single-use, configured per deployment	Reusable library, select from saved scripts
Script Types	Bash or Cloud-Config	Any shell script
Storage	Not saved after deployment	Saved in your account
Management	No editing after deployment	Create, edit, delete anytime

Script Types

Bash Script

Shell script that executes during first boot.

Format:

Requirements:

Must start with #!/bin/bash on first line

Executes with root privileges

Maximum 16KB

Cloud-Config

YAML-based configuration for cloud-init.

Format:

Requirements:

Must start with #cloud-config on first line

Uses cloud-init YAML syntax

Maximum 16KB

Common Use Cases

Cloud-init scripts typically handle:

Install packages (nginx, docker, monitoring tools)

Create users and configure SSH access

Modify system files and service configurations

Run one-time setup commands

Package Installation:

User Configuration:

Requirements

Size: Maximum 16KB (16,384 bytes)

Header: Required shebang (#!/bin/bash) or cloud-config header (#cloud-config) on first line

Execution: Runs once during instance first boot with root privileges

Format: YAML must use spaces for indentation, not tabs

Using Cloud-Init Scripts

Open Script Editor

Deploy Instance → Advanced Configuration → "Add Cloud-Init Script"

Select Script Type

Click "Bash Script" or "Cloud-Config" button

Write Script

Enter your initialization commands (max 16KB)

Save

Click save - editor shows character count at bottom

Deploy Instance

Script executes automatically during first boot

Size Indicator:
Bottom of editor displays current character count and maximum limit (16,384 characters / 16KB).

Execution Details

Timing: Runs during instance first boot only

Privileges: Root access

Persistence: Not saved for reuse (single deployment only)

Optional: Cloud-init scripts are not required for deployment

Common Errors

Support

Email Support

Technical assistance with cloud-init: [email protected]

Deploy Instance

Complete deployment guide with configuration options

Cloudinit Script

Cloud-Init Scripts#

Availability#

Key Differences: Cloud-Init vs Startup Scripts#

Script Types#

Bash Script#

Cloud-Config#

Common Use Cases#

Requirements#

Using Cloud-Init Scripts#

Execution Details#

Support#