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KEDA Azure Storage Queue Trigger Samples

Sample program for sending/receiving queue and KEDA v2 Azure Storage Queue Trigger.

How to run the sample

Prerequisite

  • Install Go lang (1.13+)
  • Docker

Set Environment Variables for the container

Key Description
ConnectionString The Connection String for the Azure Storage Account
queueName The name of the queue

Run queue receiver/sender

receiver

Receive queue messages.

$ cd cmd/receive
$ go run receive.go

sender

Send 100 messages to the Azure Storage Queue.

$ cd cmd/send
$ go run send.go 100

How to debug

To see the behavior, you can debug it. This is the sample of the VSCode .vscode/launch.json. Then Start Debugging. It requires, VSCode Go extension.

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "auto",
            "program": "${fileDirname}",
            "env": {
                "ConnectionString": "YOUR_STORAGE_ACCOUNT_CONNECTION_STRING_HERE",
                "QueueName":"hello"
            },
            "args": []
        }
    ]
}

Run with KEDA

Prerequisite

KEDA v2 is deployed already. You have a kubernetes cluster and configured with kubectl.

Start the ScaledJob

Copy deploy-consumer-job.yaml.example to deploy-consumer-job.yaml

Modify YOUR_BASE64_CONNECTION_STRING_HERE as your Storage Account Connection String with Base64 encoded.

Then Apply it. This will create a secret, ScaledJob with Storage Queue Trigger.

$ kubectl apply -f deploy/deploy-consumer-job.yaml

Send queue to the target queue. You can do it with the send command. This command will send 3 messages with cleaning up existing messages.

$ cd cmd/send
$ export ConnectionString="YOUR_CONNECTION_STRING_HERE"
$ export queueName=hello
$ go run send.go 3

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