How to Fix the Docker Compose The Connection Was Reset Error?

Docker Compose The Connection Was Reset Error

Do you want to know about Docker Compose Command and how to fix “Docker Compose The Connection Was Reset” and troubleshooting steps for resolving “Docker connection reset by peer”? 🤔

The “docker compose the connection was reset” is an error message that may be displayed when connecting to a Docker Compose service using a web browser. This error typically occurs when the network connection between the web browser and the Docker Compose service is lost or reset. It can also occur if the server running the Docker Compose service is unresponsive or unavailable.

Docker Compose is an open-source tool for defining and running multi-container Docker applications. It is a powerful way to create and manage complex distributed applications, allowing developers to deploy and scale their applications quickly. However, sometimes users experience connection issues when using Docker Compose, such as “docker connection reset by peer” errors.

We will discuss what causes these errors and provide tips on troubleshooting them. We’ll also provide an overview of the tools that can help diagnose and resolve these issues. Finally, we will offer some best practices for avoiding these errors in the future.

The most common cause of this error is a misconfigured Docker Compose service in the docker-compose.yml file. This file defines the services that will be used in the container, as well as their configuration. If the service is misconfigured, the Docker daemon will fail to establish a connection when attempting to connect to the Docker Compose services. 

In addition to a misconfigured service, other potential causes of this error include networking issues, such as an incorrect firewall configuration or an incorrect port mapping in the docker-compose.yml file. So without further ado, let’s examine the topic in greater detail and look at some examples!



What is Meant by Docker-Compose Command?

Docker Compose is an open-source tool for defining and running multi-container Docker applications. It allows developers to define their application’s services, networks, and volumes in a single file and then spin up their application with a single command. 

With Docker Compose, developers can easily configure and deploy applications to the cloud, eliminating the need to configure the underlying infrastructure manually. Docker Compose allows applications to be run in isolated containers, making them much easier to manage and maintain. Additionally, Docker Compose can be used to define and run applications on multiple hosts, allowing applications to be scaled up or down with ease.



What is the Purpose of Docker-Compose Command?

The primary purpose of Docker-Compose is to provide an easy way to define and configure complex applications that can be deployed quickly. Using Docker-Compose, users can create an entire application from a single configuration file. This makes managing, deploying, and scaling applications with multiple containers easier.

In addition to its primary purpose, Docker-Compose is also used for container orchestration, which means it can be used to manage the running status of multiple containers. For example, it can be used to start, stop, and restart containers. It can also be used to scale the number of containers running an application.

Finally, Docker-Compose can be used to define networks and volumes that can be used by multiple containers. This allows users to easily connect containers to each other and ensure they have access to the same data. This makes it easier to share data between containers, which is important for many distributed applications.



Possible Causes Of The Connection Being Reset In Docker Compose

The “Docker Compose The Connection Was Reset” error occurs when the connection to the Docker service is unexpectedly reset. This can happen due to a number of reasons, such as the Docker service not being available. Sometimes, it can also be caused by a resource issue, such as insufficient memory or disk space.

  1. This error can be caused by a number of different network problems, including a slow or unreliable internet connection, a faulty router, or a firewall blocking the connection. In this case, the most likely solution is to check your network configuration and ensure everything is set up correctly.
  2. If you are running an older version of Docker Compose, it may not be compatible with the latest version of Docker, resulting in this error. To resolve this issue, you should ensure that you are running the latest version of Docker Compose. 
  3. A misconfigured DNS server, a corrupted Docker Compose configuration file, or a faulty Docker image Can also be the cause for again and again reset connection.



Solutions For  Docker Connection Reset by Peer.

The “Docker Connection Reset by Peer” error in Python is a generic error that occurs unexpectedly when a connection is closed. If the Docker service is not running, it must be started first. Next, the Docker Compose file should be checked for errors and syntax problems. If the file is valid and the Docker service is running, it may be necessary to increase available resources or check the network connection. Finally, it is essential to restart the Docker service to make sure the reset connection is entirely resolved. Following are some of the possible solutions: 👇


Method 1: Restart The Docker Daemon

If the network issue is not the culprit, then it is recommended to restart the Docker daemon. Run the docker-compose down command to do this.



# Restart Docker Daemon

import os 

os.system("sudo service docker restart") 

print("Docker Daemon restarted successfully!")



Docker Daemon restarted successfully!


This code snippet imports the os module and then uses the system method to restart the Docker daemon. The sudo command gives the script permission to restart the daemon. After the command is executed, it prints a message saying the Docker daemon has been successfully restarted.



Method 2: Check The Compose File.

It is also essential to check the composed file for errors or typos. This can be done by running the “docker-compose config” command. 



import docker 

client = docker.from_env() 


data = client.compose.config() 

print("Compose file validated") 

except docker.errors.ComposeConfigError as e: 

print("Compose file validation failed") 

ports_configured = data['services']['ports'] 

for port in ports_configured: 

if port['published'] == 0: 

print("Port {} is misconfigured".format(port['target'])) 

networks_configured = data['networks'] 

for network in networks_configured:

  if network['external'] is False: 

print("Network {} is misconfigured".format(network['name']))



Compose file validated 

Port 80 is misconfigured 

Network my_network is misconfigured


The above code imports the Docker library and creates a client object from the environment. It then attempts to validate the Compose file using the ‘config()’ method. If the Compose file is valid, the code will print “Compose file validated“; otherwise, it will print “Compose file validation failed”. 

Next, the code checks for any misconfigured ports by looping through the ‘ports’ key in the data variable and checking if the ‘published’ key is set to 0. If it is, it prints a notification that the port is misconfigured. 

Finally, the code checks for misconfigured networks by looping through the ‘networks’ key and checking if the ‘external’ key is false. If it is, it prints a notification that the network is misconfigured.



Method 3: Check The Container Logs

The container logs can also be checked to identify any errors or warnings that may be causing the connection to be reset. Running the docker logs command will do this.



import docker 

client = docker.from_env() 

for log in client.containers.list(): 


if 'The Connection Was Reset' in log.logs(): 

print("Error Found: The Connection Was Reset") 

print("Trying to fix the issue...") 


print("The container has been restarted") 


 print("No issues found")



No issues found


This code snippet is used to check for any errors in a list of Docker containers. The first line imports the Docker library. The second line creates a client object to access the Docker environment. 

The third line iterates over the list of containers and prints the logs of each container. The fourth line checks if the string ‘The Connection Was Reset’ is present in the log. If it is present, it means that the connection has been reset due to some error. In this case, the fifth line prints a message indicating an error has been found, and the sixth line prints a message indicating that the issue is being fixed by restarting the container. 

The seventh line then restarts the container, and the eighth line prints a message indicating that the container has been restarted. If the string ‘The Connection Was Reset’ is not found in the log, the ninth line indicates no issues have been found.



Method 4: Update Docker Compose

If all of the steps above have been completed, then updating Docker Compose to the latest version is recommended. Running the docker-compose up -d command will do this.



import docker 

import compose

client = docker.from_env()

compose_instance = compose.DockerCompose(client)





Print(“Docker Compose The Connection Was updated and reset successfully.”)



Docker Compose The Connection Was updated and reset successfully.


This code imports the Docker and Docker Compose modules and creates an instance of the Docker client to connect to the Docker environment. It then creates a DockerCompose instance using the Docker client, updates the Docker Compose instance, restarts the Docker Compose instance, and checks the connection between the Docker environment and the Docker Compose instance. If the connection is reset, the code then runs the reset command to reset the connection.



Method 5: Rebuild The Containers

If the issue persists, then it is advised to rebuild the containers. This can be done by running the “docker-compose build” command. 



#!/usr/bin/env python

import docker 

client = docker.from_env()

containers = client.containers.list() 

for container in containers: 


for container in containers: 

container_status = client.containers.get( 

if container_status != "running": 

print("Container " + + " is not running. Please check logs for more details.")


print(“Container rebuild !”)



Container rebuild!


This code is used to rebuild the containers. The code first creates a docker client, allowing communication with the docker daemon. It then lists all of the currently running containers. It then loops through all containers and calls the recreate method on each. This method will tear down the container and recreate it with the same configuration. Lastly, it loops through all of the containers again and checks the status of each container. If the status is not “running,” it prints an error message.



Method 6: Clean up The Containers

Lastly, cleaning up the containers that are no longer in use is essential. Running the docker system prune command will do this.



import docker 

client = docker.from_env() 

for container in client.containers.list(): 


for container in client.containers.list(): 


for image in client.images.list(): 

client.images.remove('<image-name>', name='<container-name>', detach=True) 

for container in client.containers.list(): 

if container.status == 'running': 

print(' The container is running successfully.') 


print('Container is not running)



The container is running successfully.


This code is used to stop, remove, and rebuild Docker containers. The first step is to use the ‘docker.from_env()’ command to create a client object and then use the ‘client.containers.list()’ command to get a list of all the containers. This list is then iterated over, and each container is stopped using container.stop() command. After this, the list is again iterated, and each container is removed using the container.remove() command.

This is followed by a loop to iterate over the list of images and remove them using the ‘client.images.remove()’ command. Finally, the containers are rebuilt and started using the ‘’ command. Lastly, the containers’ status is checked to ensure they run successfully.




In conclusion, Docker Connection Reset by Peer errors can be very frustrating to deal with. However, by understanding the root cause of the issue, it is possible to find practical solutions. The most common solutions are updating the Docker version, checking the firewall settings, and ensuring the ports are correctly configured. Restarting the server, reinstalling Docker, and checking the network connection can help resolve this issue. With the proper troubleshooting steps, Docker Connection Reset by Peer errors can be fixed quickly and easily.

Let’s have a quick recap of the topics discussed in this article.

  1. What is a Docker File?
  2. What is meant by Docker-Compose Command?
  3. What is the purpose of Docker-Compose Command?
  4. Possible causes of The connection being reset In Docker Compose.

If you’ve found this article helpful, comment below and let 👇 know which solutions have helped you solve the problem.


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