Thank you, Ethan. I did all of this and it seems to have gotten me past the 504 Time-out error but now onto a 502 bad gateway error. I ran cat /var/log/nginx/error.log and it said:

[crit] 1484#1484: *9 connect() to unix:/run/DigitalOceanOneClick/unicorn.sock failed (2: No such file or directory) while connecting to upstream, client: [IP Address], server: _, request: "GET / HTTP/1.1", upstream: "http://unix:/run/DigitalOceanOneClick/unicorn.sock:/", host: "[My Domain Name]"

I ran into this problem before and followed some advice:
As root I ran mkdir /run/DigitalOceanOneClick then chown rails /run/DigitalOceanOneClick but it said "No such file or directory".

I made the directory again then ran ls -la /run/DigitalOceanOneClick and got total 0
drwxr-xr-x 2 root root 40 Jul 6 19:10 .
drwxr-xr-x 25 root root 920 Jul 6 19:10 .. but it seems to be deleted moments after I do this.

As for your update on the error you spotted, I checked that and it was just a mailer with the following code:

# Load the Rails application.
require_relative 'application'

# Initialize the Rails application.
Rails.application.initialize!

ActionMailer::Base.smtp_settings = {
  :address        => 'smtp.sendgrid.net',
  :port           => '578',
  :authentication => :plain,
  :user_name      => ENV['SENDGRID_USERNAME'],
  :password       => ENV['SENDGRID_PASSWORD'],
  :domain         => '[My Domain Name]',
  :enable_startstls_auto => true
}

Hey there,

It was no problem at all! I'm glad to hear that issue is now resolved, now we can work on this new error!

It looks like Unicorn may be misconfigured, would you mind checking the configuration file /etc/unicorn.conf and configuring it as needed? Once that is done just restart the service service unicorn restart.

I say this because in the error it is showing things like client: [IP Address] and host: "[My Domain Name] instead of the actual IP / domain. This makes me think defaults may have been left in place.

If that still fails could you check the log file /var/log/unicorn/unicorn.log to see if it provides any additional insights into what is going on when the sock file fails to create?

Regards,
Ethan Fox
Developer Advocate - DigitalOcean

I can't reply to your last message for some reason, so I'm here. I checked the configuration of my /etc/unicorn.conf file and it reads the following:

listen "unix:/run/DigitalOceanOneClick/unicorn.sock"
worker_processes 4
user "rails"
working_directory "/home/rails/transverse-audio"
pid "/run/DigitalOceanOneClick/unicorn.pid"
stderr_path "/var/log/unicorn/unicorn.log"
stdout_path "/var/log/unicorn/unicorn.log"

as for the [IP Address] and [My domain name], I just replaced the ones on file for privacy.

The real name of the app directory is transverse-audio instead of my-app-name and my domain name is transverseaudio.com. I have been using transverse-audio and transverseaudio.com throughout my droplet.

Here is my /etc/nginx/sites-enabled/rails file, just in case it is of interest.

upstream app_server {
    server unix:/run/DigitalOceanOneClick/unicorn.sock fail_timeout=0;
}

server {
    listen   80;
    root /home/rails/transverse-audio/public;
    server_name _;
    index index.htm index.html;

    location / {
            try_files $uri/index.html $uri.html $uri @app;
    }

    location ~* ^.+\.(jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|mp3|flv|mpeg|avi)$ {
                    try_files $uri @app;
            }

     location @app {
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_pass http://app_server;
    }
}

I have tried using my droplet's IP, transverseaudio.com, and transverseaudio.com www.transverseaudio.com for the value of server_name _; in addition to trying the underscore.

Still, the page is giving me a 502 error.

Any clue as to why all of this would be happening?

I truly do appreciate you sticking with me on this, Ethan.

Hey there,

It's been no problem. I'm happy to help in any way I can!

Could you restart the Unicorn service: service unicorn restart then check the log: tail -20 /var/log/unicorn/unicorn.log to see why the socket file wouldn't be created? You can send that output back again similarly on paste.ubuntu.com if you aren't sure what an error means. If there is no error there, could you check /var/log/syslog and /var/log/nginx/error.log for any additional hints as to why the socket file would be having issues coming up?

Regards,
Ethan Fox
Developer Advocate - DigitalOcean

As per request, here is the pastebin with all of the code you've requested from logs after calling service unicorn restart: https://paste.ubuntu.com/p/YSXRzkxhHW/

The nginx errors are the same, although the host: changes from "transverseaudio.com" to my droplet IP with :80 at the end sometimes.

The only other things I think might be important is that I developed this rails app on a windows computer and I'm using git-bash to interact with the droplet. I also noticed that after deleting the "railsproject" it came back with only "vendor" remaining, probably since I ran bundle install. Comparing the two vendor directories I noticed the railsproject one has a folder called "x86_64-linux" but the one I have in my rails app doesn't, it only has "assets".

Hey there,

Per this community post answer's instruction: https://www.digitalocean.com/community/questions/rails-one-click-times-out-after-a-git-pull-containing-four-files-accessing-my-site-is-a-504-gateway-timeout?answer=36300 would you mind changing the logging level of Unicorn? The issue presented there actually seems quite similar to yours, which is interesting but I wasn't able to find a full solution there.

Then, just restart the service again (service unicorn restart) and check the logs tail -20 /var/log/unicorn/unicorn.log or, if you have a custom log in the project tail -20 /project/directory/log/unicorn.log.

You can send back those outputs again via paste, or simply here in the community if they do not feel too large and cumbersome. :)

Regards,
Ethan Fox
Developer Advocate - DigitalOcean

Hey, thanks for taking the time to look for those other questions. I followed it and went into my production.rb file and made a few changes to my logging:

config.consider_all_requests_local       = true  #was false

if ENV["RAILS_LOG_TO_STDOUT"].present?
    logger           = ActiveSupport::Logger.new(STDOUT)
    logger.formatter = config.log_formatter
# config.logger = ActiveSupport::TaggedLogging.new(logger) #commented this out
end


config.logger = Logger.new(STDOUT)
config.logger.level = Logger.const_get('INFO')
config.log_level = :info  #was :debug (i commented the other one out)

(I tried :debug too but that didn't seem to change anything)
Here is my unicorn.log - https://paste.ubuntu.com/p/C63JQ5QvRK/

I tried tail -20 /transverse-audio/log/unicorn.log but No such file or directory.
(I also tried the exact command you gave me at first, not realizing it was a placeholder but that didn't work.)

I went through with updating the rack etc. hoping that may have done good, but it seems like it didn't do anything either.

I even tried to gem install unicorn thinking that's what the error was caught up on but that didn't seem to do anything.

Hey there,

Apologies for the reply time on this! I'm doing my best to keep up with this thread while staying on top of other things at the job. :)

With regards to the issue, is there any log in /transverse-audio/log/? You can run ls -lah /traverse-audio/log/ to find out. If so, would you mind sending back the recent contents of that log (perhaps called production.log?).

If you aren't able to find that log file, is there any other error further up in the primary log that would indicate any missing gems, etc. similar to the error seen in this community post: https://www.digitalocean.com/community/questions/rails-one-click-times-out-after-a-git-pull-containing-four-files-accessing-my-site-is-a-504-gateway-timeout?comment=60640?

Regards,
Ethan Fox
Developer Advocate - DigitalOcean

Hey Ethan, don't worry at all, the fact that you're helping me is appreciated so much.

After running ls -lah /traverse-audio/log/ it said there was no such file or dir. I navigated there manually and typed in ls -lah and got this:

total 8.0K
drwxrwxr-x  2 rails rails 4.0K Jul  6 14:27 .
drwxrwxr-x 13 rails rails 4.0K Jul  6 18:54 ..
-rw-rw-r--  1 rails rails    0 Jul  6 14:27 .keep

I went through and tried to do tail -20 /transverse-audio/log/unicorn.log but now it's saying no such file or directory either.

Is there any chance that someone at DigitalOcean can go into my droplet and see the code themselves and try to get this all sorted out? I know it's a lot to ask for but I really don't know what else to do.

If you think you may have any more ideas for solving this, I am happy to keep trying. I just don't want to take up all of your time.