How to create IBM Cloud Event Streams trigger with terraform?

Question

I have an Event Streams instance called myKafka (with an appropriate topic called myTopic) and an IBM Cloud Function action called myAction. I want to trigger the myAction when a message arrived on myKafka's topic. I have to write this relation in terrafrom. I have checked this documentation but it only shows examples for alarm trigger and not based on Event Streams. So my question is how to create it with terrafom?

I am trying with the following:

resource "ibm_function_trigger" "myTrigger" {
  name      = "myTrigger"
  namespace = "myNameSpace"
  feed {
    name = "???"
      parameters = <<EOF
        [
          {
            "key":"???",
            "value":"???"
          },
          {
            "key":"???",
            "value":"???"
          }
        ]
      EOF
  }
}

I don't really know what should I put into the question marks' place. I expect the myKafka instance and myTopic should be passed with the myAction but could not determine the feed's name and keys with appropriate values.

You could define that trigger using the CLI or UI, then read it out using a TF data source. — data_henrik, Nov 04 '21 at 10:54

score 2 · Accepted Answer · answered Nov 05 '21 at 08:21

I finally made it with this configuration:

resource "ibm_function_trigger" "myTrigger" {
  name      = "myTrigger"
  namespace = "myNameSpace"
  feed {
    name = "/whisk.system/messaging/messageHubFeed"
      parameters = <<EOF
        [
          {
            "key":"kafka_brokers_sasl",
            "value":<MY_KAFKA_BROKERS_SASL>
          },
          {
            "key":"user",
            "value":"<MY_USERNAME>"
          },
          {
            "key":"password",
            "value":"<MY_PASSWORD>"
          },
          {
            "key":"topic",
            "value":"myTopic"
          },
          {
            "key":"kafka_admin_url",
            "value":"<MY_KAFKA_ADMIN_URL>"
          }
        ]
      EOF
  }
}

The keys and /whisk.system/messaging/messageHubFeed are important.

How to create IBM Cloud Event Streams trigger with terraform?

1 Answers1