Clear unused Docker data

Overview

About this script

This script improves your privacy on macOS.

These changes use Mac system commands to update your settings.

This script frees up disk space, but also improves user privacy by:

1. Removal of stopped containers: Containers often run applications or services that might process sensitive or personal data. Even if a container is stopped, its filesystem remains intact, and potentially sensitive data inside it can be accessed. By removing stopped containers, we eliminate this potential privacy risk.

2. Deletion of unused images: Images can sometimes contain sensitive information, especially if they were built from Dockerfiles that copied local files or were used in scenarios where sensitive data was processed. Deleting unused images ensures that any inadvertent sensitive information embedded in those images is eradicated.

3. Cleanup of network configurations: Networks, especially custom ones, can contain configurations that reveal details about system architecture, inter-container communication, or even hardcoded secrets. Removing unused networks mitigates risks associated with lingering, outdated, or insecure configurations.

4. Elimination of build cache: The Docker build process uses a cache to speed up image creation. This cache can contain remnants of previous builds, including potentially sensitive data or files. Pruning the build cache ensures that these remnants are deleted, further safeguarding privacy.

5. Footprint reduction: By consistently pruning unused Docker objects, the overall footprint of Docker on the system is reduced. This makes it harder for malicious actors to exploit any lingering or overlooked vulnerabilities in the system or Docker itself.

This script runs docker system prune -af command to clean up unused Docker data 1.

Specifically, the command will 1:

• Remove all stopped containers.
• Remove all networks not used by at least one container.
• Remove all images not used by any container.
• Remove all build cache.

This script uses Bash (Shell script) scripting language.

Use with Caution

This script is only recommended if you understand its implications. Some non-critical or features may no longer function correctly after running this script.

Implementation Details

• Language: bash

• Required Privileges: Administrative (sudo) access

• Compatibility: macOS only

• Reversibility: Some changes may be permanent

Explore Categories

Clear third-party application data

This action belongs to Clear third-party application data category. This category configures macOS using 13 scripts. These scripts are organized in 1 categories. The category includes 11 subscripts and 1 subcategories that include more scripts and categories. Read more on category page ▶

Privacy cleanup

This action belongs to Privacy cleanup category. This category configures macOS using 85 scripts. These scripts are organized in 12 categories. The category includes 6 subscripts and 6 subcategories that include more scripts and categories. Read more on category page ▶

Apply now

Choose one of three ways to apply:

1. Automatically via privacy.sexy: The easiest and safest option.
2. Manually by downloading: Requires downloading a file.
3. Manually by copying: Advanced flexibility.

Alternative 1. Apply with Privacy.sexy

privacy.sexy is free and open-source application that lets securely apply this action easily.

Open privacy.sexy

privacy.sexy instructions

1. Open or download the desktop application
2. Search for the script name: Clear unused Docker data.
3. Check the script by clicking on the checkbox.
4. Click on Run button at the bottom of the page.

Alternative 2. Download

Reversible

This script is reversible, you can restore your changes to the initial/default state. The restore/revert methods provided here can help you fix issues.

If something goes wrong, use the Revert script provided above.

1. Download the script file by clicking on the button below:

   Download script

2. Run the script file by clicking on it.

Alternative 3. Copy

This is for advanced users. Consider automatically applying or downloading the script for simpler way.

1. Open Terminal app

2. Copy the following code:

Code to apply changes

if type "docker" &> /dev/null; then
    docker system prune -af
fi

3. Paste the code into terminal.
4. Press Enter to apply the code.

Some scripts requires restarting your computer to take affect.

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