How to create queue in Rabbitmq - docker

Question

I am creating a new image taking base as rabbitmq and trying to create queue,exchange which will be reflected on localhost url once the server is up. I am able to manually create queue within rabbitmq container. But I want to achieve this either through dockerfile or entrypoint.sh. I want the exchange, queue to be available as soon as rabbitmq server is up. Please suggest any way to achieve it. Any sample example will be helpful.

Answer 1

Rabbitmq has a Management HTTP API. You can use this api to interact with rabbitmq.
You can create an exchange by doing a PUT request to http://localhost:15672/api/exchanges/${vhost}/${name}. Similarly, you can create a queue by
doing a PUT to http://localhost:15672/api/queues/${vhost}/${name}.
You can call these using curl in the entrypoint script.

Answer 2

You can use HareDu 2 like so:
var result = _container.Resolve<IBrokerObjectFactory>()
.Object<Queue>()
.Create(x =>
{
x.Queue("fake_queue");
x.Configure(c =>
{
c.IsDurable();
c.AutoDeleteWhenNotInUse();
c.HasArguments(arg =>
{
arg.SetQueueExpiration(1000);
arg.SetPerQueuedMessageExpiration(2000);
});
});
x.Targeting(t =>
{
t.VirtualHost("HareDu");
t.Node("Node1");
});
});

Answer 3

Here is a practical example with curl and the REST HTTP API which was already mentioned.
First of all, the HTTP REST API is a separate plugin and if not installed, you have to install it with the command:
rabbitmq-plugins enable rabbitmq_management
if you want to install it in your Docker image, you can do:
RUN rabbitmq-plugins enable rabbitmq_management
Once you plugin is installed, you can just call the API with a curl command:
curl --location --request PUT 'http://localhost:15671/api/queues/%2F/TEST_QUEUE' \
--header 'Content-Type: application/json' \
--header 'Authorization: Basic Z3Vlc3Q6Z3Vlc3Q=' \
--data-raw '{
"auto_delete": false,
"durable": true,
"arguments": {}
}'
The Basic auth provided is guest/guest as the default user in the docker image.
The trick is for the default vhost, you have to put %2F in your url (equivalent to /) this can make you lose a lot of time if you try other variations.
Here are some references:
Management plugin documentation
HTTP API documentation
If you need a practical docker example, you can have a look to my solace integration project where I set up a rabbitMQ for testing purpose here.