my app is running but I cannot access it via fly proxy or the subdomain

The rails app shows as running in the logs:

2023-01-13T11:41:31Z app[9f803b33] mia [info]Puma starting in single mode...                                                                                                                                         
2023-01-13T11:41:31Z app[9f803b33] mia [info]* Puma version: 5.4.0 (ruby 3.0.1-p64) ("Super Flight")                                                                                                                 
2023-01-13T11:41:31Z app[9f803b33] mia [info]*  Min threads: 5                                                                                                                                                       
2023-01-13T11:41:31Z app[9f803b33] mia [info]*  Max threads: 5                                                                                                                                                       
2023-01-13T11:41:31Z app[9f803b33] mia [info]*  Environment: production                                                                                                                                              
2023-01-13T11:41:31Z app[9f803b33] mia [info]*          PID: 531                                                                                                                                                     
2023-01-13T11:41:31Z app[9f803b33] mia [info]* Listening on http://0.0.0.0:8080                                                                                                                                      
2023-01-13T11:41:31Z app[9f803b33] mia [info]Use Ctrl-C to stop                                                                                                                                                      
2023-01-13T11:42:01Z runner[c935ea46] mia [info]Shutting down virtual machine                                                                                                                                        
2023-01-13T11:42:01Z runner[c0640a89] mia [info]Shutting down virtual machine                                                                                                                                        
2023-01-13T11:42:01Z app[c935ea46] mia [info]Sending signal SIGINT to main child process w/ PID 520                                                                                                                  
2023-01-13T11:42:01Z app[c935ea46] mia [info]2023-01-13T11:42:01.734Z pid=520 tid=32o INFO: Shutting down                                                                                                            
2023-01-13T11:42:01Z app[c935ea46] mia [info]2023-01-13T11:42:01.734Z pid=520 tid=32o INFO: Terminating quiet workers                                                                                                
2023-01-13T11:42:01Z app[c935ea46] mia [info]2023-01-13T11:42:01.734Z pid=520 tid=gq8 INFO: Scheduler exiting...                                                                                                     
2023-01-13T11:42:01Z app[c0640a89] mia [info]Sending signal SIGINT to main child process w/ PID 520                 

and I can ssh to the app and run rails console, I’ve confirmed I can interact with redis via Rails.cache.set or Rails.cache.read successfully as well as interact with the database to create and destroy records

However, I am unable to access my app using fly open on the subdomain or fly proxy 8080 via localhost:8080

here is my fly.toml, I followed the quick start guide to setup for existing rails apps and then added the sidekiq worker, I’ve also added the recommended patch for action_cable that is listed in the quick start guide:

# fly.toml file generated for market-landing on 2023-01-12T12:25:23-05:00

app = "market-landing"
kill_signal = "SIGINT"
kill_timeout = 5

[processes]
  web = "bin/rails fly:server"
  worker = "bundle exec sidekiq"

[build]
  [build.args]
    BUILD_COMMAND = "bin/rails fly:build"
    SERVER_COMMAND = "bin/rails fly:server"

[deploy]
  release_command = "bin/rails fly:release"

[env]
  PORT = "8080"
  RACK_ENV="production"
  RAILS_ENV="production"

[experimental]
  allowed_public_ports = []
  auto_rollback = true

[[services]]
  http_checks = []
  internal_port = 8080
  processes = ["web"]
  protocol = "tcp"
  script_checks = []
  [services.concurrency]
    hard_limit = 25
    soft_limit = 20
    type = "connections"

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

  [[services.ports]]
    handlers = ["tls", "http"]
    port = 443

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

[[statics]]
  guest_path = "/app/public"
  url_prefix = "/"

Any help would be greatly appreciated

healthcheck:

fly checks list
Update available 0.0.446 -> v0.0.447.
Run "flyctl version update" to upgrade.
Health Checks for market-landing
  NAME                             | STATUS  | ALLOCATION | REGION | TYPE | LAST UPDATED | OUTPUT                                     
-----------------------------------*---------*------------*--------*------*--------------*--------------------------------------------
  3df2415693844068640885b45074b954 | passing | 9f803b33   | mia    | TCP  | 47m23s ago   | TCP connect 172.19.6.138:8080: Success[✓]  
                                   |         |            |        |      |              |                                            
                                   |         |            |        |      |              |                                            
(base) ➜  market-landing git:(master) ✗ 

fly status =>

fly status
Update available 0.0.446 -> v0.0.447.
Run "flyctl version update" to upgrade.
App
  Name     = market-landing          
  Owner    = personal                
  Version  = 4                       
  Status   = running                 
  Hostname = market-landing.fly.dev  
  Platform = nomad                   

Deployment Status
  ID          = 672eb3c8-0262-61b9-721e-7e4e9c2f67fd         
  Version     = v4                                           
  Status      = successful                                   
  Description = Deployment completed successfully            
  Instances   = 2 desired, 2 placed, 2 healthy, 0 unhealthy  

Instances
ID              PROCESS VERSION REGION  DESIRED STATUS  HEALTH CHECKS           RESTARTS        CREATED    
9f803b33        web     4       mia     run     running 1 total, 1 passing      0               48m16s ago
5bb876e7        worker  4       mia     run     running                         0               48m16s ago

I’m facing the same issue, did you find a resolution?

the issue I was facing was that the IP address had not issued automatically, if you issue an ipv4 and an ipv6 address to your app you should be set, you’ll also need to make sure that your server command is: “bin/rails server -b [::]” if you are using puma (ipv6 binding) in your fly.rake file

1 Like

Thank you! Easy to forget about the ipv6 binding w/ these Fly apps.