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Decisions about Docker, LXD, and rkt
Florian Sager
IT DevOp at Agitos GmbH · | 2 upvotes · 377.1K 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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Learn MorePros of Docker
Pros of LXD
Pros of rkt
Pros of Docker
- Rapid integration and build up824
- Isolation692
- Open source521
- Testability and reproducibility505
- Lightweight460
- Standardization218
- Scalable185
- Upgrading / downgrading / application versions106
- Security88
- Private paas environments85
- Portability34
- Limit resource usage26
- Game changer17
- I love the way docker has changed virtualization16
- Fast14
- Concurrency12
- Docker's Compose tools8
- Easy setup6
- Fast and Portable6
- Because its fun5
- Makes shipping to production very simple4
- Highly useful3
- It's dope3
- Its cool2
- MacOS support FAKE2
- Simplicity, isolation, resource effective2
- Open source and highly configurable2
- Does a nice job hogging memory2
- Package the environment with the application2
- Very easy to setup integrate and build2
- HIgh Throughput2
- Docker hub for the FTW2
- Super2
- Asdfd0
Pros of LXD
- More simple10
- Open Source8
- API8
- Best8
- Cluster7
- Multiprocess isolation (not single)5
- Fast5
- I like the goal of the LXD and found it to work great5
- Full OS isolation4
- Container3
- More stateful than docker3
- Systemctl compatibility2
Pros of rkt
- Security5
- Robust container portability3
- Composable containers2
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Cons of Docker
Cons of LXD
Cons of rkt
Cons of Docker
- New versions == broken features8
- Unreliable networking6
- Documentation not always in sync6
- Moves quickly4
- Not Secure3
Cons of LXD
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Cons of rkt
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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 LXD?
LXD isn't a rewrite of LXC, in fact it's building on top of LXC to provide a new, better user experience. Under the hood, LXD uses LXC through liblxc and its Go binding to create and manage the containers. It's basically an alternative to LXC's tools and distribution template system with the added features that come from being controllable over the network.
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 are some alternatives to Docker, LXD, 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.