Question
Ruby on Rails One Click install - Change/add application and keep Puma running
- Posted on October 18, 2018
- Ruby on RailsUbuntu 18.04
Asked by designcafe
Good day,
I’ve use the one click Ruby on Rails image to create a droplet. I’ve cloned my project in /home/rails/project-name and installed all dependancies and migrated the database. I’ve also created a virtual host configuration file in sites-available and added a symbolic link to sites enabled.
I’ve edited /etc/systemd/system/rails.service to changed the path. I’ve reloaded/refreshed the unit file and restarted the rails service and rebooted the server.
The problem I have is that my application won’t work unless I start puma manually (if I don’t nginx shows a 502 error).
If I start the puma server manually everything works fine but it shuts down as soon as I exit the terminal.
Please can someone help me figure out what the issue might be? This happens when both I listen on port 3000 and using a unix socket. It even happens for a fresh rails installation. The only difference in my app and the example app is that I use MySql instead of Postgres…
Any ideas?
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Try seeing the output of
tail -f /var/log/syslog
Take a look if it shows: " Environment: development"… somewhere in the Puma output.
I was able to add any Environment Variable I needed in the file: /etc/systemd/system/rails.service using the format
[Service]
Type=simple
Environment="One=1" "Three=3"
Environment="Two=2"
Environment="Four=4"
I achieved removal the 5XX Server Error after affected services were restarted and systemctl daemon-reload used. So add-to-that:
systemctl restart nginx
systemctl restart rails
(…if not a full reboot).
In actuality, mine config turned out to be more like:
Environment="RAILS_ENV=production"
Environment="RAILS_MASTER_KEY=blah1234" #This is a Rails >v5.2 feature
Environment="RAILS_DATABASE_PASSWORD=12341234etc..."
Some more thoughts: A point of consumption for me is confusing ENV Vars, particularly if whether they are being set, or benignly stored in /root/.passwords.digitalocean.or.something
The /root/.dot-file location seems to indeed be benign, (but also a good place to copy the above-needed environment variables from.)
I will research if there is a more appropriate place for these environment settings I describe in this post. So, if you have info, please share.
referenced: https://unix.stackexchange.com/questions/455261/how-to-set-environmental-variable-in-systemd-service
I’ve ran into the same roadblock. I get 502 bad gateway and I can’t seem to get Puma to serve the app (even if I run it from the terminal and keep it running there). Any luck anyone, or @digitalocean ?
Thank you,
Hi,
I’m facing the same issue with my server (same config as yours). While I haven’t found any solutions yet, I noticed that their original setup does not work either. When you create a new droplet and try accessing the url (droplet’s IP), it shows a NGINX page, not at all a Rails page. Also, if you take a look at their
/home/rails/exampleapp, it’s just an empty shell, there’s not even a view to be render. With Puma, NGINX should normally implement anupstreamwhich is not present in/etc/nginx/sites-enabled/rails.Is there a member of Digitalocean team that could help us understand this ? What’s the point of a one-click app if the setup is not working properly ? Not blaming you guys (you are doing an amazing work), just trying to understand.
I’ll keep you posted if I found any clues, will try to set this up as if the server was a fresh install without Rails/Ruby/Puma.
Hell, did anyone find a solution this problem?