> ## Documentation Index
> Fetch the complete documentation index at: https://docs.postiz.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Docker Compose Configuration

> How to configure your docker-compose file for Postiz

You will often see, when for example configuring providers, that the environment variables will look like this:

```env theme={null}
INSTAGRAM_CLIENT_ID=12345678901234567890
```

You have 2 options on how to set these variables in your `docker-compose.yml` file.

## Option 1: Direct in docker-compose.yml

You can set them directly in the `environment` section of the service.

```yaml theme={null}
services:
  postiz:
    environment:
      YOUR_ENV_VAR: "value"
      YOUR_OTHER_ENV_VAR: "value"
```

## Option 2: Using a .env file

You can use a `.env` file to set the variables.

**docker-compose.yml:**

```yaml theme={null}
services:
  postiz:
    env_file:
      - .env
```

**.env:**

```env theme={null}
YOUR_ENV_VAR=value
YOUR_OTHER_ENV_VAR=value
```

## Option 3: Combine both

You can also use both!

**docker-compose.yml:**

```yaml theme={null}
services:
  postiz:
    environment:
      YOUR_ENV_VAR: "value"
    env_file:
      - .env
```

**.env:**

```env theme={null}
YOUR_OTHER_ENV_VAR=value
```

<Note>
  When using an .env file, you will need to transfer all environment variables from the docker-compose.yml file to the .env file.
  An .env file will override any variables set in the .yml file.
  Using an .env file for the DB / Redis won't be necessary.
</Note>