[Error] The app is not displayed in the production environment
Overview
I followed the steps to deploy, but I don't see it in production: sob: As a result of trial and error for nearly an hour, I will leave it as a memorandum for my commandment because it was a simple answer: bow_tone1:
Event
Even if I enter ** http: // 
Something wrong? ?? I thought, and as a result of continued loading even after reloading, it did not change. ..
Verification
① Check the error on the terminal (EC server)
Repository name(EC server)
$ less log/unicorn.stderr.log
The following error is displayed as a result of entering the above command
What you should check is ** (Mysql2 :: Error :: ConnectionError) ** on the third line. Does Mysql start? ??
② Check the status of Mysql
Repository name(EC server)
$ sudo service mysqld status
#After entering the command, if the following is displayed, it is running
mysqld (pid 8621) is running...
Alright! no problem. .. Then why? ??
③ Check the port on AWS
Port range input omission: tired_face:
Cause
There was an input omission when setting the port of the security group in AWS. You need to enter the following contents when adding an inbound rule.
** [Type] ** Custom TCP rules ** [Protocol] ** TCP ** [Port range] ** 3000 ← I forgot: expressionless: ** [Source] ** Custom 0.0.0.0/0
The screen is displayed in the browser safely: sparkles:
- At first, CSS is not reflected, so I think that the view is broken!
reference
Command collection at the time of production environment deployment https://qiita.com/15grmr/items/7ad36caa82a0fa27c4bd
Errors that faced during deployment and their countermeasures https://qiita.com/sho012b/items/54fcd932ff8c76cdcd05
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