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Docker

112.7K
92.1K
+ 1
3.8K
rkt

30
102
+ 1
10
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Docker vs rkt: What are the differences?

Developers describe Docker as "Enterprise Container Platform for High-Velocity Innovation". 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. On the other hand, rkt is detailed as "App Container runtime". Rocket is a cli for running App Containers. The goal of rocket is to be composable, secure, and fast.

Docker and rkt belong to "Virtual Machine Platforms & Containers" category of the tech stack.

Some of the features offered by Docker are:

  • Integrated developer tools
  • open, portable images
  • shareable, reusable apps

On the other hand, rkt provides the following key features:

  • Composable. All tools for downloading, installing, and running containers should be well integrated, but independent and composable.
  • Security. Isolation should be pluggable, and the crypto primitives for strong trust, image auditing and application identity should exist from day one.
  • Image distribution. Discovery of container images should be simple and facilitate a federated namespace, and distributed retrieval. This opens the possibility of alternative protocols, such as BitTorrent, and deployments to private environments without the requirement of a registry.

"Rapid integration and build up" is the primary reason why developers consider Docker over the competitors, whereas "Security" was stated as the key factor in picking rkt.

Docker and rkt are both open source tools. It seems that Docker with 53.8K GitHub stars and 15.5K forks on GitHub has more adoption than rkt with 8.68K GitHub stars and 829 GitHub forks.

Decisions about Docker and rkt
Florian Sager
IT DevOp at Agitos GmbH · | 2 upvotes · 213K views
Chose
LXDLXD
over
DockerDocker

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 Docker
Pros of rkt
  • 821
    Rapid integration and build up
  • 688
    Isolation
  • 517
    Open source
  • 505
    Testa­bil­i­ty and re­pro­ducibil­i­ty
  • 459
    Lightweight
  • 217
    Standardization
  • 182
    Scalable
  • 105
    Upgrading / down­grad­ing / ap­pli­ca­tion versions
  • 86
    Security
  • 84
    Private paas environments
  • 33
    Portability
  • 25
    Limit resource usage
  • 15
    I love the way docker has changed virtualization
  • 15
    Game changer
  • 12
    Fast
  • 11
    Concurrency
  • 7
    Docker's Compose tools
  • 4
    Fast and Portable
  • 4
    Easy setup
  • 4
    Because its fun
  • 3
    Makes shipping to production very simple
  • 2
    It's dope
  • 1
    Highly useful
  • 1
    MacOS support FAKE
  • 1
    Its cool
  • 1
    Docker hub for the FTW
  • 1
    Very easy to setup integrate and build
  • 1
    Package the environment with the application
  • 1
    Does a nice job hogging memory
  • 1
    Open source and highly configurable
  • 1
    Simplicity, isolation, resource effective
  • 5
    Security
  • 3
    Robust container portability
  • 2
    Composable containers

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Cons of Docker
Cons of rkt
  • 7
    New versions == broken features
  • 5
    Documentation not always in sync
  • 5
    Unreliable networking
  • 3
    Moves quickly
  • 2
    Not Secure
    Be the first to leave a con

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    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

    What is rkt?

    Rocket is a cli for running App Containers. The goal of rocket is to be composable, secure, and fast.

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    What companies use rkt?
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    What tools integrate with Docker?
    What tools integrate with rkt?

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    What are some alternatives to Docker and rkt?
    LXC
    LXC is a userspace interface for the Linux kernel containment features. Through a powerful API and simple tools, it lets Linux users easily create and manage system or application containers.
    Kubernetes
    Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.
    Cloud Foundry
    Cloud Foundry is an open platform as a service (PaaS) that provides a choice of clouds, developer frameworks, and application services. Cloud Foundry makes it faster and easier to build, test, deploy, and scale applications.
    Vagrant
    Vagrant provides the framework and configuration format to create and manage complete portable development environments. These development environments can live on your computer or in the cloud, and are portable between Windows, Mac OS X, and Linux.
    Red Hat OpenShift
    OpenShift is Red Hat's Cloud Computing Platform as a Service (PaaS) offering. OpenShift is an application platform in the cloud where application developers and teams can build, test, deploy, and run their applications.
    See all alternatives