Triggers

Scenarios

You can create a trigger to automatically execute the defined HTTP POST requests. For example, when an image is pushed, the CI/CD pipeline will automatically pull and deploy the image to a cluster. In this way, you can quickly connect to the CI/CD pipeline for container DevOps.

Image push can trigger a request.

Creating a Trigger

1. Log in to the SWR console. In the upper left corner, switch to your region. Click a repository name to go to its details page.
2. In the navigation pane, choose O&M Center > Triggers.
3. Click Add Trigger in the upper right corner.
4. In the displayed dialog box, configure the parameters.

   Table 1 Parameter description

   Parameter	Description	Example
   Name	Trigger name.	TriggerRule
   Namespace	Namespace where a trigger will be created.	library1
   Application Scope	Image: You can use a regular expression to specify images. Alternatively, you can click to select images. The regular expression can be nginx-* or {repo1, repo2}. *: matches any field that does not contain the path separator /. **: matches any field that contains the path separator /. ?: matches any single character except /. {option 1, option 2, ...}: matches any of the options. Tag: Image tag. You can use a regular expression to specify tags. The matching rules are the same with those for images.	nginx-*
   Trigger Action	You can set the following action as a trigger: Pushing an image	Pushing an image
   Remote Certificate Verification	If you select this option, the system will check whether the remote certificate is released by an authorized organization. If you do not, it will not be checked.	-
   Request Address Type	Private network Public network	Private network
   Request Address	IP address the trigger will send a POST request to. CAUTION: The IP address must fall into the default VPC network CIDR block you specified when you purchased the repository.	-
   Request Header	When a trigger sends a POST request, the header information can be in Key:Value format. Example: Authentication: xxxxxxx. Use semicolons (;) to separate multiple headers, for example, param1:value1;param2:value2.	-

   Figure 1 Creating a trigger
   

5. Click OK.

Managing Triggers

You can manage your triggers as follows.

• Enable or disable a trigger. indicates a trigger is enabled and indicates the trigger is disabled. A new trigger is enabled by default.
• Modify a trigger. All parameters except Namespace and Request Address can be modified.
• Delete a trigger.
• View a trigger. When the action specified in a trigger is executed, the trigger will send a request. You can click to view trigger records.

  Table 2 Trigger records

  Parameter	Description
  Trigger Action	Action that triggers a request.
  Trigger Resource	Repository resource on which the action was performed.
  Status	Status of the Webhook request sent by a trigger.
  Created	Time when the Webhook request was sent.

  Figure 2 Managing triggers