Ubuntu Wsl With Docker Could Not Be Found

“Troubleshooting issues with Ubuntu WSL and Docker can be challenging, particularly when the message ‘Ubuntu WSL with Docker could not be found’ appears, indicating an installation or configuration problem.”Sure, I can provide a summary table regarding the issue of “Ubuntu WSL with Docker Could Not Be Found.” Note that, in this context, WSL refers to Windows Subsystem for Linux, while Docker is a platform used to automate the deployment, scaling, and management of applications.

Creating a summary table would help us to understand better what type of error or problem the user is encountering when setting up Docker on Ubuntu WSL and what possible solutions can be applied.

Error Type	Description	Possible Solution
Docker daemon not starting	This error occures when the Docker daemon could not be found or start in Ubuntu WSL.	Make sure that Docker Desktop is installed on your Windows host and WSL integration is enabled in Docker Desktop settings.
Incompatible Docker versions	Sometimes, Docker version incompatibility between the host and the Docker client in WSL could lead to errors.	Ensure that the Docker versions on your Windows host and Ubuntu WSL are compatible. Update them if necessary.
Incorrect PATH variable	If the PATH variable is not set correctly in Ubuntu WSL, it may fail to locate the Docker command.	Modify the PATH variable in your profile file (usually ~/.bashrc or ~/.profile), ensuring it includes /usr/local/bin.

There could be several causes for the Ubuntu WSL environment not finding Docker. One of the common reasons is that, although Docker is successfully installed on the Windows system, it isn’t correctly linked into the WSL environment. Therefore, the WSL terminal cannot find it.

Other situations where problems might occur include incompatible Docker versions, incorrect PATH variables, or simply mistakes during installation or updating processes. The solutions to these issues often involve checking whether Docker Desktop is installed and correctly configured for WSL integration on your Windows host, verifying compatible Docker versions between your operating systems, and correcting the PATH variable within the bash profile in your Ubuntu WSL.

For more information, perusing Docker’s official documentation on their website¹, Microsoft’s developers’ guides on WSL² and the Ubuntu community forums³ can give you practical insights and guide you towards possible solutions.

In terms of code, you might have to manipulate your .bashrc or .profile file to modify PATH. Here’s an example:

shell
echo “export PATH=$PATH:/usr/local/bin” >> ~/.bashrc
source ~/.bashrc

Remember, sometimes the solution could be as simple as restarting your system. Consider trying that before delving deep into debugging.

Finding Docker seemingly non-existent in your Ubuntu Windows Subsystem for Linux (WSL) setup can be a frustrating issue, particularly when you need to kick-start your development process. This problem arises due to Docker’s absence in the Windows Host or a misconfiguration in Docker’s host settings.

Before diving into the resolution of “Docker Not Found” issue in the Ubuntu WSL environment, we must extensively understand the underpinnings of both Ubuntu WSL and Docker.

Docker: An open-source tool that enables developers to automate deployment, scaling, and management of applications within software containers. The platform essentially provides OS-level virtualization to package applications into containers, which improves portability and reduces system dependencies[source].

Ubuntu Windows Subsystem for Linux(WSL): A compatibility layer designed to run Linux binary executables natively on Windows 10 systems. Essentially, it allows running Ubuntu and other Linux distributions directly on Windows 10 without dual-booting or using a virtual machine[source].

Now let’s move forward to identify the potential causes and solutions to the ‘Docker Not Found’ issue in an Ubuntu WSL environment.

The Cause: Typically, the issue is related to a lack of communication between Ubuntu WSL and Docker Desktop. When you attempt to run Docker in the terminal on WSL, you are presented with a Docker: Command not found error. This typically happens because the WSL doesn’t recognize the Docker daemon.

Potential Solutions:

1- Ensure Docker Installation On Windows: Make certain Docker Desktop is already installed on your Windows system. Without Docker Desktop installed and running, any invocation attempts to Docker inside your WSL environment will result in the ‘Command Not Found’ error.

# Install docker on windows 
Go to https://www.docker.com/products/docker-desktop and follow the installation instructions.

2- Expose Docker Daemon On TCP Without TLS: You may have missed allowing Docker Desktop to expose the Docker Daemon on tcp without TLS, causing communication barrier between Docker and Ubuntu WSL. Go to Docker Desktop > Settings > General > Select “Expose daemon tcp://localhost:2375 without TLS”.

# Exposing Docker daemon
In Docker Desktop Settings-> General -> "Expose daemon tcp://localhost:2375 without TLS"
Restart Docker Desktop

3- Initialize Docker Environment Inside Ubuntu WSL: Set environment variable DOCKER_HOST to use the ip address from the Windows host.

# Initializing Docker Environment in WSL
echo “export DOCKER_HOST= tcp://localhost: 2375” >> ~/.bashrc && source ~/.bashrc

I hope this clarifies the issue for you and provides a feasible solution. Don’t forget to invariably cross-check and verify your Docker installation as well as configurations to ensure smooth functioning with Ubuntu WSL. MUO has a comprehensive guide on how to install Docker in WSL, which might be helpful. Happy coding!

Let’s now delve deep into the reason why a user might experience failures with Ubuntu WSL(Docker integration).

The Ubuntu WSL Docker Could Not Be Found

A leading cause and the one we’ll focus on primarily in this discussion is that the “Ubuntu WSL with Docker could not be found” error, which arises when the Docker Desktop application is incorrectly configured, or the Docker service isn’t running properly. However, other reasons may lead to this error too:

• The Docker Software Is Not Installed: In certain cases, you would have installed Ubuntu WSL, but you forgot to install the Docker package. This will naturally flag the “Docker could not be found” error.

sudo apt-get install docker-ce

• WSL 1 Instead of WSL 2: Using the first version of WSL can create compatibility issues with Docker because Docker Desktop for Windows heavily supports WSL 2 over WSL 1 for its performance and more complete environment configuration features.

wsl --set-version Ubuntu-20.04 2

• Docker Service Isn’t Running: If the Docker Desktop application fails to launch the Docker service at startup correctly, you’ll encounter the same issue.

sudo service docker start

• Inadequate User Permissions: I know it sounds bizarre, but if your user profile doesn’t have administrative privileges, Docker won’t run correctly on Ubuntu WSL. Therefore, guarantee that your user account has sufficient permissions.

Docker recommends using the stable release of their software since each edge version may come with its own set of bugs. So, if you’re using the edge version of Docker, this might be the reason for your problem. Besides, try checking for any updates you haven’t installed yet.

sudo apt-get update && sudo apt-get upgrade

This command fetches the list of available updates and then installs them. Please note it will upgrade all the packages in the process [source].

If you counter-check all above conditions and ensure everything is set up correctly, this should resolve the “Ubuntu WSL with Docker could not be found” error. As a developer, anticipate these and many more hiccups in your coding journey; learning from such errors is part of the process towards becoming a proficient coder.

Understanding the intertwined dynamics of Ubuntu Windows Subsystem for Linux (WSL) and Docker requires diving deep into the core functionality of these components and the challenges that may arise.

Ubuntu Windows Subsystem for Linux (WSL) is an incredible resource for developers, offering a Linux-like interface within the Windows operating system. This helps coders to run Linux-based commands in a Windows environment, making it hassle-free to utilize Linux operations without having a dedicated Linux system. It offers the convenience of using popular open-source tools like bash, awk, or sed while leveraging the Microsoft Windows user-interface.

But when integrating WSL with Docker, issues could arise. Docker is a platform used by developers to automate the deployment, scaling and management of applications within containers. One common error users might come across is “Ubuntu WSL with Docker could not be found“. Understanding this problem involves understanding key differences between Docker on Windows and Docker on Linux, primary of which is how Docker interacts with the OS.

On Linux, Docker uses the host kernel directly, creating containers as lightweight processes on the host machine. However, on Windows, Docker needs to setup a Linux-compatible virtual machine to create and manage containers. WSL creates disparity between the systems and can cause communication barriers.

To troubleshoot the “Ubuntu WSL with Docker could not be found” issue follow the steps:

– Verify the Docker Desktop installation on your Windows machine. Docker should be installed and running.

– Also, confirm that the WSL 2 backend option is enabled in Docker Desktop’s settings under the

General

tab.

– Check Docker Desktop’s resources settings. Under the

WSL Integration

tab, ensure you have integration enabled for the required Linux distribution.

– In case Docker commands are unresponsive in your Ubuntu WSL terminal, restart the Docker service in Ubuntu using the following command:

sudo service docker start

– If the issue persists, reinstall Docker and WSL, ensuring correct versions and accurate configuration setups. Ubuntu supports Docker fully and its combination with a correctly configured WSL will help avoid such problems in future.

Unraveling the complex dynamism of Ubuntu WSL and Docker demonstrates a head-on encounter with some of the most revolutionary tools in development environments. By rectifying the ‘Docker Could Not Be Found‘ problem, one not only gains an operational advantage and smoother workflow but also deep insights about the mechanisms driving coding platforms. For more details on resolving Docker issues on WSL, consider exploring online resources such as Docker and Ubuntu official documentation & forums.

For high precision execution, I cannot stress enough the importance of using compatible versions of Docker, Windows, and WSL. In addition to resolving specific errors, regularly updating these components can introduce improved features and enhanced stability, greatly proving beneficial to your developing potential. Click Here!

Also sharing a code snippet that could potentially help solving Docker issues:

 $ docker version
 $ sudo service docker start
 $ sudo update-alternatives --config docker
 $ sudo apt-get update
 $ sudo apt-get upgrade

Now that there is clarity on how Ubuntu WSL works with Docker and possible fixes on situations where “Docker could not be found” scenario emerges, the landscape of developing in Windows environment while leveraging the power of Linux commands expands significantly, making your development capability robust and agile!
A recurring challenge that developers often face when working with Ubuntu, Windows Subsystem for Linux (WSL), and Docker environments is receiving a common error message: “Docker could not be found”. Let’s delve into why this happens and how to approach this common stumbling block.

First, it’s essential to understand the underlying architecture of these systems. WSL allows you to run a Linux environment directly on Windows, without needing a dual-boot or virtual machine setup¹[1](https://docs.microsoft.com/en-us/windows/wsl/). On the other hand, Docker is a platform built to simplify the deployment process by creating a lightweight container for your application²[2](https://docs.docker.com/get-started/overview/).

But what causes the absence of Docker in Ubuntu WSL? The main reason is that the Docker daemon utilizes a technology named namespaces which is not currently available in WSL³[3](https://github.com/microsoft/WSL/issues/2291). Essentially, your docker commands are trying to communicate with a service that doesn’t exist in your current context.

To solve this, there is a workaround— installing Docker on Windows and then configuring your Ubuntu WSL to talk to the Docker daemon running on Windows. Here’s a step-by-step breakdown:

1. Begin by installing [Docker for Windows](https://docs.docker.com/docker-for-windows/install/)

# After installation, right-click on the Docker taskbar icon
# Select Settings / General 
# Check 'Expose daemon on tcp://localhost:2375 without TLS'

This exposes the Docker daemon on a local port which can be accessed from WSL.

2. Modify your `.bashrc` file on Ubuntu WSL

# Open your .bashrc file using nano or any text editor
nano ~/.bashrc

Add this line to the end of your `.bashrc`:

export DOCKER_HOST=tcp://localhost:2375

Save the changes and exit.

3. Source your `.bashrc` or restart your bash terminal

This allows your changes take effect immediately.

source ~/.bashrc

With these changes implemented, you should now be able to run docker commands from within your Ubuntu WSL.

To validate if Docker is successfully installed:

docker version

The output should print detailed information about your Docker installation.⁴[4](https://stackoverflow.com/questions/33379393/docker-path-confusion-docker-cannot-be-found)

In essence, while it might initially seem surprising to encounter ‘Docker not found’ on an Ubuntu WSL environment, remember that they operate in unique technological contexts. But with the right configuration adjustments, we can get them talking together seamlessly, making for superior development experience.If you’ve been struggling with the “Ubuntu WSL with Docker could not be found” error, a few reasons might account for this. The error may be as a result of Ubuntu not installed on your Windows Subsystem for Linux (WSL), Docker Desktop isn’t installed or it’s improperly set up, or the system can’t switch between different WSL versions effectively.

Check Ubuntu Installation

First, ensure that Ubuntu is correctly installed in your Windows Subsystem for Linux:

wsl -l -v

Running this command lists out all distros currently installed and their respective WSL versions. Look under the NAME column, If you don’t see Ubuntu, then you need to install it from Microsoft Store or via PowerShell command line.

Once it’s downloaded, set it as your default WSL:

wsl --set-default Ubuntu

Ensure Docker Desktop is installed and properly set up

On your Windows machine, confirm whether Docker Desktop is installed. Open Docker Desktop and go to Settings > General. Look out for the “Use the WSL 2 based engine” option and activate it.

Save the changes and then navigate to the Resources > WSL Integration section in Docker Desktop settings. There, ensure your Ubuntu distribution is checked. This creates a bridge between Docker and your Ubuntu WSL.

Switching Between WSL Versions

For Docker to function correctly on Ubuntu WSL, you must employ the second version of WSL (WSL 2). You can switch into WSL 2 by inputting:

wsl --set-version Ubuntu-20.04 2

When running the above command, replace “Ubuntu-20.04” if using another version of Ubuntu.

After implementing these measures, restart your Ubuntu WSL and Docker Desktop. Try running some Docker commands on your Ubuntu WSL terminal again. The “Could Not Be Found” message should have disappeared by now.

Incorporating the above steps, one will be able to solve the problem Microsoft WSL Documentation. Remember, coding involves a lot of trial and error, so don’t give up! With tenacity, we conquer every challenge thrown our way, pushing the frontiers of software development.

Consider consulting the official Docker Installation Guide if you have additional challenges. Following each step diligently eliminates the risk of running into avoidable hitches – keeping that workflow smooth as we continue solving problems in the world through code.When using Docker with Ubuntu in the Windows Subsystem for Linux (WSL), you may encounter an error stating that “Docker could not be found”. This usually happens if Docker is not correctly installed or configured on your system. There are several potential causes of this issue and ways to go about resolving it.

Let’s look at how to resolve the Docker ‘could not be found’ issue:

First, ensure Docker is installed on your Linux system. You can check this by running the following command:

docker -v

If Docker isn’t installed or Legacy version is running, you might get a message saying, “Docker command ‘docker -v’ not found” or “Cannot connect to the Docker daemon. Is the docker daemon running on this host?” You should install or upgrade Docker to the latest version to resolve this issue.

Next, if Docker is installed but still isn’t being recognized, it might be because Docker isn’t listed in Ubuntu’s system path. To add Docker to the system path, use this command:

export PATH=$PATH:/usr/local/bin/docker

This ensures that whenever you type ‘docker’ into the terminal, Ubuntu knows where to look for it.

Another possible reason for this error could be related to file permissions. The Docker binary file should have an execution permission. You can add execution permissions as follows:

sudo chmod +x /usr/local/bin/docker

In case Docker is installed and the system path is correctly set up, but you’re still getting the ‘not found’ error, then it might be that Docker’s service isn’t running. Start the Docker service with this command:

sudo service docker start

You’d also need to make sure that the Docker Daemon is accessible to WSL.

Here is a simplified perspective of the procedure in bullet points:

– Ensure that Docker is installed.
– Make sure Docker is in Ubuntu’s PATH.
– Verify the appropriate file permissions for Docker.
– Confirm Docker’s service is running.
– Make sure Docker Daemon is accessible to WSL.

Keep in mind while the above steps often resolve the “Docker could not be found” error, they are not exhaustive. This error may occur due to some other complex conditions in your specific system configuration. Therefore, I suggest referring to the official Docker documentation or explore further insights from expert forums if the issue persists.

The imperative aspect of employing Docker with Ubuntu WSL comprise collision avoidance, fundamental comprehension of how both operate in harmony and regular software updates. Letting these elements slip might lead to a myriad of issues including the common “Docker could not be found” error. However, troubleshooting programmatically and systematically would guide one towards effortlessly operating Docker with Ubuntu in a WSL environment.Understanding the intricacies of combining these three tech commodities – Ubuntu, Windows Subsystem for Linux (WSL), and Docker, is bound to uncover some instances that may impact the overall optimality due to misconfiguration. The direct interdependency and interaction of these can often lead to an encounter with the “Ubuntu WSL With Docker Could Not Be Found” error.

Firstly, it’s important to acknowledge a remarkable caveat of operating within this triage model:

• Can’t run both Docker versions. You can’t run Docker Desktop and Docker as installed from your distro’s package manager simultaneously. Being aware of this can eliminate a significant number of encountered errors off the bat.

Assuming that you have correctly installed Windows Subsystem for Linux (WSL), Docker, and Ubuntu on your system, encountering such an error message would typically indicate a path not correctly allocated within your system’s environment variables. Hence, the issue lies in the inability of the system’s built-in search methods, confined by its environment variables, to locate or recognize the installed Docker within the Ubuntu-WSL setup.

export DOCKER_HOST=tcp://localhost:2375

This line must be included in your bashrc file. Route it to remove any ambiguity regarding Docker’s location and hence, make it accessible at all times when invoked over the terminal. Ensure to run –restart always so Docker boots on startup even in the absence of the attached user’s terminal instance.

Due to the oft-encountered misconception of Linux being just another program within windows while using WSL, users tend to overlook significant aspects of socket management between Windows and WSL. Some people make assumptions about exposing the Docker UNIX socket over TCP without taking care of basic things like firewall rules.

sudo ufw allow 2375/tcp

Many problems are attributed to permission errors arising from either Docker’s installation or its runtime directory being allocated as owned by root or non-sudoers groups instead of the user intended to operate Docker.

sudo chown $(id -un):$(id -gn) /usr/bin/docker

Such alterations will allot all Docker-related calls and tasks to the user group specified, easing any permission-errors hell-bent on hampering progress.

Beyond misconfigurations emanating from incorrect filesystem permissions or inaccurate environment variable paths, it’s crucial to acknowledge the cross-system compilation and execution occurring during this setup. A multitude of newly exposed issues could stem from simple differences in newline semantics across Linux and Windows to much less anticipated discrepencies like slight variations in commonly used command flags or tools.

Finally, here’s a table summarizing potential sources of misconfigurations and their impacts:

Misconfigurations can significantly degrade your experience with a Ubuntu-WSL-Docker setup. But armed with the knowledge about what could go wrong, you can act promptly to alleviate them and ensure smoother executions and enhanced utility.

It’s a familiar challenge – you’ve set up your environment precisely, you’re one command away from launching your Dockerized application in Ubuntu WSL (Windows Subsystem for Linux), but you’re greeted with an error message: “Docker-Ubuntu-WSL could not be found.” It can feel like looking for a needle in a haystack. But why is this happening? Let’s unpack the possible causes and discuss diagnosis techniques that can help you resolve this issue.

Error Diagnosis Techniques

Variably, the root cause of such errors lies within connectivity issues between Docker and WSL, path confusions across various subsystems, or Docker’s no-show on the LinuxUbuntu App. Key error diagnostics techniques applicable here include:

• Checking if Docker is installed correctly.
• Validating the path settings between WSL and Docker.
• Inspecting if the communication bridge between Docker and WSL is functioning as intended.

Check Docker Installation

The first step is to ensure Docker has been properly installed. You can do this by running the docker version command. Below is a python code snippet that can help:

import subprocess
command = "docker --version"

try:
    subprocess.run(command, shell=True, check=True)
    print("Docker is installed.")
except subprocess.CalledProcessError as e: 
    print(f"Docker isn't installed. Error: {str(e)}") 

In case Docker isn’t installed, refer to Components Engine Install for installation guidelines.

Review Path Settings

Subsequently, validate whether Docker can be located by WSL. Sometimes, the PATH environment variable may not include the Docker paths and hence the error. If Docker was installed into a non-standard directory, or if you’ve already installed it onto your system but the installation location isn’t in your system’s PATH, you might confront such issues. Here, appending the Docker path to the system PATH environment variable might resolve the problem:

echo "export PATH=\$PATH:/usr/local/bin/docker" >> ~/.bashrc
source ~/.bashrc

This script will permanently add Docker to your system path. It appends /usr/local/bin/docker (the usual default directory where Docker is located) to the PATH environment variable.

Inspect Docker and WSL Connectivity

In many instances, the missing bridge between Docker and WSL might be the issue. Docker runs natively in Windows 10, not within WSL. So, Linux (WSL) is required to converse with Docker in Windows. You may need to install and set up Docker Host for WSL to provide Linux the accessibility to communicate with win32 processes.

Remember, these steps offer general guidance. They may vary based on system configurations and Docker versions. Thoroughly understanding your setup is equally fundamental. With these diagnosis techniques handy, the ghostly ‘Docker-Ubuntu-WSL not found’ error should no longer greet you. Happy coding!

An error message that reads “Could Not Be Found” during your Ubuntu WSL with Docker installation is a clear indication of improper installation procedures, which emphasizes the importance of adhering to correct installation protocols. The setting up of a ‘Ubuntu-Docker-WSL’ environment involves multiple steps and careful navigation through specific commands, otherwise you could easily stray into some of these common errors.

When dealing with technology like Docker on Ubuntu on WSL, paying attention to subtleties matters. Following are the importance of proper installation procedure:

1. It Ensures Software Compatibility:
The foremost reason to follow proper installation procedure is it ensures software compatibility; a correct interplay between Docker, Ubuntu, and Windows Subsystem for Linux (WSL). This involving collaboration of different technologies can only be successful if installed correctly.

2. Allows Complete Utilization of Features:
With Docker’s exceptional features such as version control, application isolation and scalability, following the right set-up process allows developers to fully access and utilize these critical components.

3. Enhances Operational Efficiency:
Proper installations eradicate everyday operational issues. If Docker is improperly setup, it could lead to inefficient Docker engine runtimes or complete failure of command executions.

To navigate past the “Could Not Be Found” error, we’ll elaborate the installation procedure of Docker inside WSL enabled Ubuntu environment:

See also

Linux

Error: Enospc: System Limit For Number Of File Watchers Reached Angular

1. Enable WSL in Windows:

Ensure that WSL is enabled in your Windows 10 system by running the following command in PowerShell:

 wsl --set-default-version 2 

2. Ubuntu Installation:
Install the Ubuntu application from Microsoft Store. Post installation, launch it to configure username and password.

3. Docker Installation Insides WSL:
Firstly, update your Ubuntu package list by running:

 sudo apt-get update 

. And then Install Docker on your Ubuntu WSL by:

 sudo apt-get install docker.io 

4. Test Docker Installation:
Run:

 sudo service docker start 

followed by

 sudo docker run hello-world 

to test if Docker was installed successfully.

5. Windows Docker Installation:
Certain functionalities of the Docker Desktop WSL 2 backend need the Docker Desktop to be functional on Windows as well. To get around this, install Docker Desktop for Windows from here.

In case you still encounter the “Could Not Be Found” error, manually add Docker’s path in Ubuntu environment variable by.

 echo "export PATH=\$PATH:/usr/bin/docker" >> ~/.bashrc 

Then activate changes with:

 source ~/.bashrc 

An important point to remember is, overcoming these challenges and ensuring a seamless development environment largely depends on how closely you’ve followed these installation steps. Always refer to the official documentation from Docker and Microsoft for accurate information and latest updates. This objectivity ensures that developers can fully leverage the utility of an integrated Ubuntu-Docker-WSL environment.When trying to link Docker, Ubuntu, and Windows Subsystem for Linux (WSL), it is vital to follow the proper setup procedure. Having Docker not being found on your WSL Ubuntu might be due to incorrect configuration or installation process. To successfully establish this connectivity between Docker, Ubuntu, and WSL, there are certain steps you need to take. This answer will highlight the necessary steps to take to integrate these environments optimally.

The first step revolves around installing Docker on your Windows system. For that, download Docker Desktop for Windows here. Follow the prompts of the installer and make sure to check the box labeled “Enable WSL 2 Features” during the installation – this ensures that the Docker Desktop integrates correctly with your existing WSL environment.

Once complete, open Docker Desktop settings by right clicking the icon in the Windows taskbar. Under General settings, ensure that the ‘Use the WSL 2 based engine’ checkbox is checked. This confirms that Docker is running via WSL 2.

Image: Docker Desktop Settings > General > Use WSL 2 based engine

Next, we need to install Docker in your WSL Ubuntu environment:

Open your Ubuntu terminal either from within the Microsoft Store or from within WSL itself and input the following commands:

To update your local database of software:

 
sudo apt-get update 

Now, install packages to allow apt to use a repository over HTTPS:

 
sudo apt-get install \\
   apt-transport-https \\
   ca-certificates \\
   curl \\
   gnupg-agent \\
   software-properties-common

Add Docker’s official GPG key:

 
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Check the fingerprint using:

 
sudo apt-key fingerprint 0EBFCD88

Finally, set up the stable repository and install docker:

 
sudo add-apt-repository \\
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \\
   $(lsb_release -cs) \\
   stable"

sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io

With Docker now installed in both Windows and Ubuntu WSL, we need to connect them. By default, the WSL instance will not recognize Docker running in Windows. To communicate with the Windows Docker Daemon from inside the WSL instance, set the Docker host to point to the Windows Docker Daemon at IP address 127.0.0.1. You can do this in bash via a command or more permanently by setting the environment variable in bashrc as follows:

echo "export DOCKER_HOST=tcp://localhost:2375" >> ~/.bashrc && source ~/.bashrc

Verify everything is working correctly by typing the following into your WSL Ubuntu terminal:

docker run hello-world

This should display the familiar “Hello from Docker!” message, indicating that the installation and linking process were successful.

Remember, whenever you want to manage Docker containers within your WSL instance, Docker Desktop needs to be running in Windows.While working with Ubuntu WSL(Windows Subsystem for Linux) along with Docker, it’s possible you may encounter some difficulties where Docker features seemingly vanish or are not found. It could result from a plethora of reasons; however, all can be handled with the correct steps.

Let’s delve into the methods to recover the missing features:

Method 1: Checking Path Variables

The first step in ensuring that everything runs smoothly involves confirming if the path variable is correctly configured to locate key executables used by Docker. If this has been set improperly, these essential tools may be unreachable.

To check if your PATH variable is properly set, run the following command in your Ubuntu WSL terminal:

echo $PATH

This should display a list of directory paths where software and executables are located.

If the directories required for Docker are missing, you will have to manually add them.

Method 2: Reinstalling Docker on WSL

If the above method doesn’t solve your issue, you can try reinstalling Docker within your WSL environment, which helps ensure any missing files are replaced and necessary setup conditions are met.

Firstly, uninstall Docker using this command:

sudo apt-get purge docker-ce docker-ce-cli

Afterwards, install Docker again with:

sudo apt update && sudo apt install docker.io

Remember to start Docker service, else it won’t run by default:

sudo systemctl start docker

Method 3: Specific Trouble With Docker-Compose

If only Docker-Compose seems to be the problem., you should make sure that the docker-compose scripts can execute. This usually looks like Docker-Compose “not being found”.

Install Docker-Compose using these commands:

sudo curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

Then, apply executable permissions to the binary:

sudo chmod +x /usr/local/bin/docker-compose

Docker functionality is integral to a vast majority of software development operations today due to its simplicity, scalability, and the large community behind it. As such, having these capabilities accessible when using your WSL environment set up is vital. These troubleshooting steps should bring you back on track should you hit an obstacle.
Remember persistence is the essence of success. Happy coding!

Python codes aren’t thoroughly tested with Ubuntu WSL and Docker backend, so bear that in mind if you’re heavily reliant on Python developed modules. For more discussion about Docker’s benefits, head here.

Sources:
Microsoft Documentation – Using Containers
Docker Compose Install Documentation

After extensive analysis, it becomes evident that the issue ‘Ubuntu WSL with Docker could not be found‘ is one predominantly experienced by users trying to use Docker within the Windows Subsystem for Linux (WSL). This hiccup arises from a few technical disparities that span across different levels of interaction between these three critical components. Thank goodness there are viable solutions to this quandary!

The most common reason behind the ‘Ubuntu WSL with Docker could not be found‘ error might be the lack of installation of necessary Linux packages on your system. Hence, cross-verifying if Docker and its dependencies have been correctly installed within your WSL environment makes an apt initial step to troubleshoot. To check whether docker is installed or not in your WSL you can type the following in your terminal:

$ docker --version

If Docker is installed properly, the version of Docker installed will be displayed.

Besides, obtaining the latest versions of both Docker and WSL-2 aligns crucially to achieving a seamless operation. Remember, WSL-2 offers full system call compatibility, which is a vital feature enabling Docker to run natively within a WSL-2 environment. Following the steps provided in the official Microsoft documentation can guide you to update your WSL to version 2.

Simultaneously, updating Docker can be accomplished through commands in the Linux terminal within the WSL environment:

$ sudo apt-get update
$ sudo apt-get upgrade docker.io

Additionally, tweaking WSL configuration settings may prove indispensable, which means enabling integration of WSL-2 with Docker. This feature has been provided from the Docker Desktop 2.3.0.2 version onwards, aiming to alleviate complications tied to this issue.

In conclusion, resolving the ‘Ubuntu WSL with Docker could not be found‘ issue revolves around meticulously inspecting every link in the chain – from the installation & updating of Docker and WSL-2 components to refining configuration settings. Debugging made simpler, is debugging made smarter!