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CloudLinux vs Docker: What are the differences?


In this article, we will discuss the key differences between CloudLinux and Docker. CloudLinux and Docker are both technologies used in the field of cloud computing, but they serve different purposes and have distinct features.

  1. Architecture: CloudLinux is an operating system designed specifically for shared hosting environments. It provides isolation and resource allocation features to ensure stability and security for multiple websites hosted on a single server. On the other hand, Docker is a containerization platform that allows you to package and deploy applications with their dependencies, providing a lightweight and portable runtime environment.

  2. Virtualization: CloudLinux uses a kernel-based virtualization approach known as Lightweight Virtual Environment (LVE). LVE allows for fine-grained control over resource allocation among multiple users on a shared server. In contrast, Docker uses containerization technology that operates at the operating system level. It leverages the host operating system's kernel and doesn't require a separate guest operating system, resulting in better performance and efficiency.

  3. Isolation: CloudLinux provides isolation at the user level by limiting resource usage for each individual user. It ensures that one user's activities do not negatively impact the performance of other users on the same server. Docker, on the other hand, achieves isolation at the application level. Each container is self-contained, with its own file system, process space, and network stack, providing strong isolation between applications.

  4. Deployment and Scalability: CloudLinux is primarily used for shared hosting environments where multiple websites are hosted on a single server. It enables easy management and scalability of hosting services with its resource allocation and isolation features. Docker, on the other hand, is designed for application packaging, deployment, and scalability. With Docker, you can easily package your application along with its dependencies and deploy it anywhere, making it well-suited for cloud-native and microservices architectures.

  5. Resource Efficiency: CloudLinux provides resource allocation and management features to ensure fair share utilization of server resources among multiple users. It optimizes resource usage by limiting excessive resource consumption by any particular user. Docker, being a lightweight containerization platform, offers efficient resource utilization by eliminating the need for separate guest operating systems. It allows for efficient packing of applications and reduces the overhead associated with running multiple instances of the same operating system.

  6. Flexibility and Portability: CloudLinux is specific to the shared hosting environment and is tightly integrated with the underlying operating system. It provides stability and compatibility for hosting providers and their customers. Docker, on the other hand, offers flexibility and portability by encapsulating application dependencies within containers. Docker containers can be easily deployed across different environments, making it easier to be consistent in development, testing, and production environments.

In summary, CloudLinux is an operating system designed for shared hosting environments, providing resource allocation and isolation features. Docker, on the other hand, is a containerization platform for packaging and deploying applications with their dependencies, ensuring portability and scalability across different environments.

Decisions about CloudLinux and Docker
Florian Sager
IT DevOp at Agitos GmbH · | 3 upvotes · 429.1K views

lxd/lxc and Docker aren't congruent so this comparison needs a more detailed look; but in short I can say: the lxd-integrated administration of storage including zfs with its snapshot capabilities as well as the system container (multi-process) approach of lxc vs. the limited single-process container approach of Docker is the main reason I chose lxd over Docker.

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Pros of CloudLinux
Pros of Docker
    Be the first to leave a pro
    • 823
      Rapid integration and build up
    • 691
    • 521
      Open source
    • 505
      Testa­bil­i­ty and re­pro­ducibil­i­ty
    • 460
    • 218
    • 185
    • 106
      Upgrading / down­grad­ing / ap­pli­ca­tion versions
    • 88
    • 85
      Private paas environments
    • 34
    • 26
      Limit resource usage
    • 17
      Game changer
    • 16
      I love the way docker has changed virtualization
    • 14
    • 12
    • 8
      Docker's Compose tools
    • 6
      Easy setup
    • 6
      Fast and Portable
    • 5
      Because its fun
    • 4
      Makes shipping to production very simple
    • 3
      Highly useful
    • 3
      It's dope
    • 2
      Very easy to setup integrate and build
    • 2
      HIgh Throughput
    • 2
      Package the environment with the application
    • 2
      Does a nice job hogging memory
    • 2
      Open source and highly configurable
    • 2
      Simplicity, isolation, resource effective
    • 2
      MacOS support FAKE
    • 2
      Its cool
    • 2
      Docker hub for the FTW
    • 2
    • 0

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    Cons of CloudLinux
    Cons of Docker
      Be the first to leave a con
      • 8
        New versions == broken features
      • 6
        Unreliable networking
      • 6
        Documentation not always in sync
      • 4
        Moves quickly
      • 3
        Not Secure

      Sign up to add or upvote consMake informed product decisions

      What is CloudLinux?

      CloudLinux OS is designed for shared hosting providers. It isolates each customer into a separate “Lightweight Virtualized Environment” (LVE), which partitions, allocates, and limits server resources, like memory, CPU.

      What is Docker?

      The Docker Platform is the industry-leading container platform for continuous, high-velocity innovation, enabling organizations to seamlessly build and share any application — from legacy to what comes next — and securely run them anywhere

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      What companies use CloudLinux?
      What companies use Docker?
      See which teams inside your own company are using CloudLinux or Docker.
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      What tools integrate with CloudLinux?
      What tools integrate with Docker?

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      Jul 9 2019 at 7:22PM

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