Update a Stack - Template

This page allows you to edit the currently applied template, upload a new one, or choose another one from a URL.

1. Choose among the available options for editing a template:
   • Select Use current template and click the pencil icon to edit the currently applied template. Another window opens to allow you to edit the contents of the template. When you are done editing, click the SAVE TEMPLATE button.
   • Select Upload template to browse and apply a different template from your local hard drive.
     Note: Acceptable file formats are JSON files (max size: 16 KB). For more information, go to Template Anatomy in the AWS CloudFormation User Guide.
   • Select Use template from URL to choose a different template from a web address.
     Note: The URL must point to a template (max size: 460,800 bytes) anywhere publically available that you have read permissions to, located in the same region as the stack. The maximum length of the URL itself is 1024 characters long.
   A Warning dialog opens if you are trying to use a template that was not originally designed for this cloud (for example, using an AWS template on a Eucalyptus cloud). Based on the information provided on the Warning dialog, you can either:

   • Expand Details to convert unsupported parameters
   • Click the I Understand, Use This Template button and all the unsupported parameters will convert automatically
   • Click Go back, I want to select a different template to discard the current template selection and repeat the above steps to choose another template
2. If you are trying to use an AWS template that contains services and resources that Eucalyptus does not yet support, a Warning dialog box opens.
   1. Click to expand Details to view the unsupported items.
      Any remaining unsupported items will be automatically removed.
   2. Once the chosen template is free of incompatible items, click I Understand, Use This Template to proceed.
3. If you edit a template and it passes validation, the next tab automatically opens. Otherwise, click the Next button to advance to the Parameters tab.