Скачать или смотреть How to Execute Commands After Mounting in docker php5.6-apache Without Stopping Apache

Learn how to seamlessly run custom commands after mounting directories in your `docker php5.6-apache` container while keeping Apache running smoothly.
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This video is based on the question https://stackoverflow.com/q/78107088/ asked by the user 'realtebo' ( https://stackoverflow.com/u/1055279/ ) and on the answer https://stackoverflow.com/a/78111945/ provided by the user 'datawookie' ( https://stackoverflow.com/u/1815577/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

Are you grappling with how to run specific commands after mounting your application directory in a Docker container running the php5.6-apache image? This is a common challenge for developers who want to enhance their container's functionality without compromising the default operations of Apache. In this guide, we’ll address this problem and walk you through an easy solution to execute commands even after mounting directories.

The Challenge

When you use Docker Compose with php5.6-apache, you may want to:

Mount your application directory.

Execute custom commands (potentially multiple).

Ensure that the default Apache behaviors remain intact.

However, adding a command directive in your docker-compose.yml file can prevent the default entry point of the Apache image from running—leading to a frustrating dead end.

Solution Overview

To achieve your goals, you can create a custom entry point script that allows you to run your commands while also invoking Apache's default entry point. Here’s how to do it step by step.

Step 1: Create a Custom Entry Point Script

Create a new file named custom-entrypoint.sh. You can choose a different name if you prefer, but make sure to remain consistent throughout.

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Make the script executable:
Run the following command in your terminal to change the permissions:

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Step 2: Update your Docker Compose Configuration

Now, it’s time to adjust your docker-compose.yml file to use the custom entry point you just created.

Sample docker-compose.yml Configuration

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Explanation:

You mount your custom entry point script into the container.

You set the command for Docker Compose to execute your script, which in turn runs the original Apache entry point once your commands are complete.

Step 3: Run Your Docker Compose Up Command

Finally, you can start your container using the following command:

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Expected Output:

When everything is set up correctly, you should see output like this:

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This output confirms that your custom commands were executed successfully before Apache resumed normal operations.

Conclusion

By following the steps outlined above, you can easily run custom commands after mounting directories in your php5.6-apache Docker container while keeping the Apache server operational. This approach offers flexibility and control while empowering you to tailor the behavior of your containers to meet your specific needs.

Now that you know how to implement this strategy, you can optimize your Docker workflow and make the most of your development environment.