Command-line tool that executes a command for each SQS message it receives.
Usage: antenna listen antenna configure
The most stupidly simple way to scale an application is through a message queue, at least where latency is not an issue. If you’re using the AWS ecosystem, the most stupidly simple way to run tasks based on messages from a message queue is through Antenna.
Grab a message from a queue, run a command and if it worked, remove the message:
antenna listen <profile> <queue> "<command>" \ 1> antenna.log \ 2> antenna.err.log
[profile my-profile-name] aws_access_key_id=<id> aws_secret_access_key=<secret> region=<region>
An easy way to see if everything is working would be to manually add a couple of messages with the SQS Management Console, and use "cat >> log.txt" as a command.
You can also add messages to the queue from the command line with the AWS CLI
# get your queue's endpoint if you only know its name aws sqs get-queue-url --profile my-profile-name --queue-name my-queue | jq '.QueueUrl' aws sqs send-message --queue-url my-queue-url --message-body my-message-body
For more information, look at the AWS CLI documentation for SQS
Install Antenna with pip, the Python package installer.
pip install sqs-antenna
While Antenna will run indefinitely, executing your command for each message it receives, it’s probably still safe to run Antenna as a daemon.
If you’re on Ubuntu, you can run Antenna as a daemon by adding it to Upstart:
antenna configure <profile> <queue> "<command>" > /etc/init/<task>.conf initctl reload-configuration start <task>
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