Can not send tasks to Rabbitmq in Fly.io - rabbitmq

Question

The problem that I have is that I have Rabbitmq and Celery running on fly (versions and configs are below). Both of them deploy normally and without any problems, however when I send a task to Rabbitmq on fly using the public dedicated Ipv4 address I get the following error: “Server has closed the connection unexpectedly”.
Versions and configurations:
OS: Ubuntu 20.04.4 LTS
Rabbitmq version: 3.8.2
Celery version: 5.2.7
The fly.toml file for Rabbitmq:
app = “rabbitmqserver”
kill_signal = “SIGINT”
kill_timeout = 5
processes =
[env]
[experimental]
auto_rollback = true
[[services]]
http_checks =
internal_port = 5672
processes = [“app”]
protocol = “tcp”
script_checks =
[[services.ports]]
handlers = [“tls”]
port = 5672
Can you provide a suitable configuration for Rabbitmq so that I can send tasks to it using it’s Ipv4 address?
I tried multiple other configurations for Rabbitmq on fly and it also did not work. Furthermore, I made sure that all the needed ports are exposed and that the machine is actually alive (checked using ping command).
Tried configuration:
app = "rabbitmq-app"
kill_signal = "SIGINT"
kill_timeout = 5
processes = []
[env]
RABBITMQ_MNESIA_DIR = "/var/lib/rabbitmq/mnesia/data"
[experimental]
allowed_public_ports = []
auto_rollback = true
[[services]]
http_checks = []
internal_port = 5672
processes = ["app"]
protocol = "tcp"
script_checks = []
[[services.tcp_checks]]
grace_period = "1s"
interval = "15s"
restart_limit = 0
timeout = "2s"
# rabbitmq admin
[[services]]
http_checks = []
internal_port = 15672
protocol = "tcp"
script_checks = []
[[services.ports]]
handlers = ["http", "tls"]
port = "15672"
[[services.tcp_checks]]
grace_period = "1s"
`