Docker Compose is a tool that was developed to help define and share multi-container applications. With Compose, we can create a YAML file to define the services and with a single command, can spin everything up or tear it all down.

Next, how to cross-origin with Nginx and Docker Compose let's see:-

Cross-origin resource sharing (CORS) is a mechanism that allows web servers to specify which origins are allowed to access their resources. When using NGINX with Docker Compose, you can configure CORS to allow or restrict access from specific origins.

Here are the steps to enable CORS in NGINX with Docker Compose:

1. Create an NGINX configuration file: Create a new file in the Nginx directory of your Docker Compose project. You can name the file default.conf or any other name you prefer. In this file, add the following configuration:

        add_header 'Access-Control-Allow-Origin' '*';

        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';

        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';

        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';

This configuration adds the required CORS headers to allow cross-origin requests.

2. Mount the NGINX configuration file: In your docker-compose.yml file, add the following configuration under the Nginx service:

  - ./nginx/default.conf:/etc/nginx/conf.d/default.conf

This mounts the default.conf file you created in the previous step to the /etc/nginx/conf.d/ directory inside the NGINX container.

3. Restart the NGINX container: Run the following command to restart the NGINX container with the updated configuration:

With these steps, your NGINX container should now allow cross-origin requests from any origin. You can customize the allowed origins and methods by modifying the add_header directives in the NGINX configuration file.

What you have to do for CORS Configuration?

In addition to the basic CORS configuration, you may also want to consider adding more advanced features such as allowing credentials or customizing CORS behavior based on the request method or URL path.

Here are some additional steps you can take to customize CORS in NGINX with Docker Compose:

1. Allow credentials: To allow credentials (e.g., cookies or authentication headers) in CORS requests, add the following configuration to your NGINX configuration file:

add_header 'Access-Control-Allow-Credentials' 'true';

Note that allowing credentials will restrict the allowed origins to a specific list, rather than using the wildcard `*` value.

2. Customize CORS based on request method: You can customize the allowed methods and headers based on the HTTP request method by using the $request_method variable in the NGINX configuration file. For example:

    add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';

    add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';

    add_header 'Access-Control-Max-Age' 1728000;

    add_header 'Content-Type' 'text/plain; charset=utf-8';

    add_header 'Access-Control-Allow-Origin' '*';

    add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';

This configuration allows GET requests from any origin, and POST and OPTIONS requests with specific headers and methods.

3. Customize CORS based on URL path: You can also customize the CORS behavior based on the URL path of the request. For example, to allow CORS only for requests to the /api path, add the following configuration:

This configuration allows CORS only for requests to the /api path, while all other requests are denied.

By customizing CORS based on request method or URL path, you can add fine-grained control over how your NGINX server handles cross-origin requests.

In this article, I will explain how to cross-origin with Nginx and Docker Compose and also know about Docker Compose in brief.

Cross origin with NGINX and Docker compose

I'm running Self-Hosted Sentry 21.6.1 on-premise with docker-compose up -d and Django database is getting full very fast because of large number of collected issues. 3,218,732 Total Errors in 8 days.

Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       504G  130G  349G  28% /


How can I delete old issues (let's say older than 30 days) from the database or set new issues to overwrite the old ones once the disk is full? Or is there a better solution for this problem?

Sentry delete issues (logs)

Im trying to download docker for my MacBook air, I'm running on MacOS 10.12.6 but the latest version needs a newer MacOS (10.13) is there anyway i can get Docker for it? I need to use docker-compose for a project im doing! 

Docker for MacOS 10.12.6

I am currently trying to implement a Docker Compose script in Ansible. Now I have implemented everything, however my Selenium Web Grids (Chrome, Firefox, Edge) do not connect to the Selenium Hub. However, with the Docker Compose Script, everything works without any issues. Can anyone possibly help me out? I've been working on this for 2 days now and can't get any further.

My Ansible playbook: https://hastebin.com/obutuniwoh.yaml

My docker compose file: https://hastebin.com/uwolacizux.yaml

Ansible Selenium Grids can't connect to Hub

I have a docker-compose configuration for which I'll like to know how much memory was used for a specific run, is there a way to do it? 

Is it possible to know how much memory was used for a docker-compose run?

I installed laradock, made .env file and ran docker-compose up -d nginx to start my server on VPS machine. But i get HTTP ERROR 500 error. If any information is required:)

Laradock on VPS gives HTTP ERROR 500 error when trying to reach domain

While deploying, the following error occurred in django image log.

django.db.migrations.exceptions.InconsistentMigrationHistory: Migration account.0001_initial is applied before its dependency users.0001_initial on database 'default'.

I deleted the migrations file and tried to migrate again and deploy, but the same error occurred.

maybe I think the problem is probably caused by customizing the User model.

Since I think you used a custom User model, you can first comment out

If your Installed_Apps settings. Then run

docker-compose

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