Why do i keep getting Failed to proxy HTTP request (error: no known healthy instances found for route tcp/443?

1

Hi all, so my deployment of my django + celery got all greens

But when i visit the app, aininjas.fly.dev, I keep getting the following error.

Failed to proxy HTTP request (error: no known healthy instances found for route tcp/443. (hint: is your app shutdown? is there an ongoing deployment with a volume or using the 'immediate' strategy? if not, this could be a delayed state issue)). Retrying in 1000 ms (attempt 20)

The fly.toml is below:


app = "aininjas"
primary_region = "mia"

[build]
  dockerfile = "compose/production/django/Dockerfile"

[deploy]
  release_command = "python /app/manage.py migrate"

[env]
  DJANGO_DEBUG = "0"
  PORT = "5000"
  RUNTIME_ENV = "PROD"
  kill_signal = "SIGINT"
  kill_timeout = "5"

[processes]
  celeryworker = "/start-celeryworker"
  django = "/usr/local/bin/gunicorn config.wsgi --bind 0.0.0.0:5000 --chdir=/app"

[[services]]
  protocol = "tcp"
  internal_port = 5000
  processes = ["django"]

  [[services.ports]]
    port = 80
    handlers = ["http"]
    force_https = true

  [[services.ports]]
    port = 443
    handlers = ["tls", "http"]
  [services.concurrency]
    type = "connections"
    hard_limit = 25
    soft_limit = 20

  [[services.tcp_checks]]
    interval = "15s"
    timeout = "2s"
    grace_period = "1s"
    restart_limit = 0

Any ideas on how I can resolve this?

2

You might want to see if the app is listening on the right port, run fly ssh shell to shell into the instance and wget -O- http://localhost:5000 or curl http://localhost:5000 to see if you get anything.

3

I’m having the same issues with a completely different stack. In the last few hours the website is going down because of the hilighted errors in this thread

4

The Status is saying is back to normal no incidents and my application is still down…why is that?

Failed to proxy HTTP request (error: no known healthy instances found for route tcp/443. (hint: is your app shutdown? is there an ongoing deployment with a volume or using the ‘immediate’ strategy? if not, this could be a delayed state issue)). Retrying in 20 ms (attempt 1)

No changes/deployments where made…

5

What is your app?

I can access @bsliu17’s app above now.

6

I’ve managed to resolve my issue.

The issue (i think) is my incorrect setting of ALLOWED_HOSTS, and after adding .fly.dev,aininjas.fly.dev,localhost,127.0.0.1 to it the app works.

Hope this is helpful to other django devs out there :slight_smile:
And thanks to @shortdiv to help me further troubleshoot my apps within the instances.

2 Likes
7

Should I just open a different thread?

8

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