Encountering a "chunked" error when using Docker Compose on Ubuntu 24.04 can disrupt container management. This article explores the causes of this issue, offering clear solutions and workarounds to help resolve it, ensuring smoother Docker Compose operations for your multi-service environments or individual containers.
15 min
Edited:30-09-2024
Understanding Docker Compose
Docker Compose is a powerful tool that simplifies the management of multi-container Docker applications. It allows developers to define and run multi-container applications with ease, using a simple YAML file to configure the services, networks, and volumes required. With Docker Compose, you can quickly spin up complex applications, enabling efficient development and testing processes.
Docker Compose is a tool designed to simplify the process of managing multi-container applications in Docker. It allows developers to define and run applications that consist of multiple interconnected services using a single YAML configuration file, typically named docker-compose.yml.
Key Features
Service Definition: You can specify multiple services, networks, and volumes in a single file, making it easy to manage complex applications.
Declarative Configuration: With the YAML file, you can declare how each service should be built, what environment variables to use, what ports to expose, and more.
Simplified Commands: Docker Compose provides straightforward commands to start, stop, and manage the lifecycle of your entire application with a single command (e.g., docker-compose up to start the application and docker-compose down to stop it).
Networking: Docker Compose automatically creates a network for your services to communicate with each other, allowing you to easily manage inter-service connections.
Environment Isolation: Each service can run in its own container, ensuring that dependencies and configurations do not interfere with one another.
Overall, Docker Compose is an essential tool for developers who want to streamline their workflow and manage multi-container applications more efficiently.
Got an unexpected keyword argument 'chunked'
The error can happen when you try to run the command:
1. sudo docker-compose up -d
And the error will look like this:
1. docker.errors.DockerException: Error while fetching server API version: HTTPConnection.request() got an unexpected keyword argument 'chunked'
Why it happen
This can happen due to the fact of docker moving to compose-v2, composer V1 haven't received any security updates since May 2021
Can you use V1
You can still download and install Compose V1 packages, but the support from Docker is stopped for it.
Migrate to Compose V2
Compose V2, which was first released in 2020, is included with all currently supported versions of Docker Desktop. It offers an improved CLI experience, improved build performance with BuildKit, and continued new-feature development.
On Ubuntu 24.04, if you installed the docker-compose package, uninstall it and install docker-compose-v2, With Docker Desktop, Compose V2 is always accessible as docker compose. Additionally, the Use Compose V2 setting is turned on by default, which provides an alias from docker-compose and the command will change:
Old command:
1. docker-compose up -d
New command:
1. docker compose up -d
What are the differences between Compose V1 and Compose V2?
In contrast to Compose V1, Compose V2 is integrated into the Docker CLI platform, and the recommended command-line syntax is now docker compose.
The Docker CLI platform offers a reliable and consistent array of options and flags, including the DOCKER_HOST environment variable and the --context command-line flag.
In Compose V2, the global --compatibility flag or the COMPOSE_COMPATIBILITY environment variable maintains the Compose V1 behavior of using underscores (_) as word separators. Since this option needs to be specified for each Compose V2 command, it is advisable to use it only as a temporary solution during the transition to Compose V2.
Uninstall V1 and Install V2
Check the Current Version: First, confirm that Docker Compose V1 is installed by checking its version:
1. docker-compose --version
If you installed Docker Compose using a package manager, use the appropriate command to remove it:
1. sudo apt remove docker-compose
Docker Compose V2 is included as a plugin in the Docker CLI. Here’s how to install it, first update Docker:
1. sudo apt update
1. sudo apt upgrade docker-ce docker-ce-cli containerd.io
Docker Compose V2 is included with Docker Desktop and can also be installed as a plugin. You can use the following command to install it:
1. sudo apt install docker-compose-plugin
Verify Installation:
1. docker compose version
In conclusion, encountering the "chunked" error when using Docker Compose in Ubuntu 24.04 can be frustrating, but it is often resolvable by upgrading to Docker Compose V2. By removing the legacy Docker Compose V1 and installing the latest version, you can benefit from improved performance, enhanced features, and better error handling. This transition not only addresses the "chunked" error but also aligns your development environment with the latest Docker practices. Embracing Docker Compose V2 will lead to a more efficient and stable experience when managing your multi-container applications, ensuring smoother deployments and seamless integration across your development workflow.
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