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Extend nginx/Apache Proxy Configurations on AWS ElasticBeanstalk

David Ojeda on January 26, 2018

AWS ElasticBeanstalk applications use either an nginx or Apache proxy to relay requests. Using the .ebextensions feature of ElasticBeanstalk we can...

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Harjot Singh • Jun 9 '20

I thoroughly followed every line of your post but elastic beanstalk is not creating file please help it’s important

David Ojeda • Jun 10 '20

Hey there!! Are you using Apache or Nginx?

Harjot Singh • Jun 10 '20

I am using nginx and my web app platform is node js

David Ojeda • Jun 10 '20

Are you using .ebextensions already or is this the first file you are creating like this?

Where are you creating the .ebextensions directory?

Make sure your dir structure looks like this:

Harjot Singh • Jun 10 '20

I am creating .ebextensions folder for the first time my directory structure is absolutely similar to this except i didn't added elasticbeanstalk directory except everything is same
A picture of my structure is attatched
dev-to-uploads.s3.amazonaws.com/i/...

David Ojeda • Jun 10 '20

I'm not sure what's going on, everything looks good.

You can try these steps instead: docs.aws.amazon.com/elasticbeansta...

Harjot Singh • Jun 10 '20

Thanks I will try these steps

rahul689 • Jul 9 '20

Hello,
Did you able to solved the problem?
I am troubling with same.

Harjot Singh • Jul 10 '20

No I tried different methods but nothing worked
but i can tell you about a improvisation/hack which will work in changing your default nginx config values connect to your instance via putty or ssh terminal like git bash or online terminal then navigate to /etc/nginx/conf.d using cd command inside conf.d directory create a new file in the form anyname.conf paste your new config value and restart nginx.

But there is an issue in this this will only work if you use single instance otherwise after sometime when your load balancer will change/replace the instance to reduce load on the servers your nginx values will be reset to default

In case you find out any other better method please let me know i am also searching for the same

rahul689 • Jul 10 '20

Thanks for sharing the hack. I am also running the system by hack. But this is not proper solution for autoscale.
@david
Is there anything settings on IAM role permission?
Although i am using the default role.
Thanks in advance.

David Ojeda • Jul 10 '20

Hey there!

Have you tried using the files command on .ebextension? Something like this:

files:
  /etc/nginx/conf.d/proxy.conf:
    mode: "000644"
    owner: root
    group: root
    content: |
      upstream nodejs {
        server 127.0.0.1:5000;
        keepalive 256;
      }

      server {
        listen 8080;

        if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2})") {
            set $year $1;
            set $month $2;
            set $day $3;
            set $hour $4;
        }
        access_log /var/log/nginx/healthd/application.log.$year-$month-$day-$hour healthd;
        access_log  /var/log/nginx/access.log  main;

        location / {
            proxy_pass  http://nodejs;
            proxy_set_header   Connection "";
            proxy_http_version 1.1;
            proxy_set_header        Host            $host;
            proxy_set_header        X-Real-IP       $remote_addr;
            proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        }

        gzip on;
        gzip_comp_level 4;
        gzip_types text/html text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

        location /static {
            alias /var/app/current/static;
        }

      }

  /opt/elasticbeanstalk/hooks/configdeploy/post/99_kill_default_nginx.sh:
    mode: "000755"
    owner: root
    group: root
    content: |
      #!/bin/bash -xe
      rm -f /etc/nginx/conf.d/00_elastic_beanstalk_proxy.conf
      service nginx stop 
      service nginx start

container_commands:
  removeconfig:
    command: "rm -f /tmp/deployment/config/#etc#nginx#conf.d#00_elastic_beanstalk_proxy.conf /etc/nginx/conf.d/00_elastic_beanstalk_proxy.conf"

It's documented here. It's another way to add custom files to your instances when deploying new versions.

rahul689 • Aug 23 '20

Hello friend,
Thanks for your help. My problem was hierarchy.

.ebextension should contain in root application directory. My application was in sub directory. And was put .ebextension to subdirectory. :(

Once take back .ebextension to main root directory the problem was resolved.

David Ojeda • Aug 26 '20

Yeeeei! I'm glad you worked it out.

I might as well add that reminder of the root directory to the post.

Thanks a lot for getting back here!

Martin • Mar 4 '21

forbiden upload file .ebextensions/01-symfony.config

files:
"/etc/nginx/conf.d/elasticbeanstalk/z-symfony.conf":
mode: "000644"
owner: root
group: root
content: |
location / {
try_files $uri /index.php$is_args$args;
}

Martin • Mar 4 '21

Hello, when I deploy in ssh I see that the file is generated, but when the deployment finishes it automatically deletes it. Do you know what it can be? Thank you all