Container Liveness, Readiness and Startup Probes**

1. Liveness probe is used to know when to restart a container.

2. Readiness probe is used to know when a container is ready to start accepting traffic.

3. Startup probe is used to know when a container application has started.

4. After logging into CHAI™, click on the Project where you want to manage the container probes and click on Cruize.

   

5. Click on blueprint version count on blueprint card. After clicking to count, blueprint versions page will be displayed which contains list of blueprint versions.

   

6. Click on View configurations kebab menu option or click on blueprint version name then of blueprint version to view blueprint configurations. Go to Deployments tab and click on Edit deployment definition from Action column of any deployment.

   

7. Then deployment definition page will be opened, now go to Containers tab. Select container and then go to specific probe tab as shown in the below image.

   

Adding a new Probe

• Click on Add New Liveness Probe button and after clicking following form will be displayed.

  

• Add Probe by entering the below details:

  Period seconds	Default value is '5', change as applicable
  Initial delay seconds	Default value is '5', change as applicable
  Timeout seconds	Default value is '1', change as applicable
  Success threshold	Default value is '1', change as applicable
  Failure threshold	Default value is '3', change as applicable
  Probe type	There are 4 different types. Default type is 'httpGet', change as applicable. Enter data based on selected probe type.

   

  • Probe Type :

    1. httpGet

       • For httpGet probe type enter below details

       Scheme	Select Scheme (HTTP / HTTPS)
       Host	Type Host name here
       Port	Type port here
       Path	Port should be in the range 1 to 65535
       HTTP Headers	Click on Add Key Value Pair button to add headers

        

    

    1. tcpSocket or grpc

       • For tcpSocket or grpc probe type enter below details as shown in the image below.

       Host	Type Host name here
       Port	Port should be in the range 1 to 65535

        

       

    2. exec

       • For exec probe type enter below details as shown in the image below.

       Command

       Enter comma separated command

        

       

• Provide all details and click on Save button

  

View Probe

To view probe details:

• Click the View icon as shown in the image below.

  

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Edit Probe

To edit a probe:

• Click the Edit icon as shown in the image below.

  

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Delete Probe

To delete a probe:

• Click the Delete icon as shown in the image below.

  

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Note:
Please follow similar steps to perform add, view, edit, and delete actions for Readiness and Startup Probes.