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Clair
Clair

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Microcontainers
Microcontainers

3
26
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Clair vs Microcontainers: What are the differences?

Developers describe Clair as "Open Source Vulnerability Analysis for your Containers". Clair is a container vulnerability analysis service by CoreOS. It provides the list of vulnerabilities that threaten each container and can sends notifications whenever new vulnerabilities that affect existing containers are released. On the other hand, Microcontainers is detailed as "Tiny, Portable Docker Containers". A Microcontainer contains only the OS libraries and language dependencies required to run an application and the application itself. Nothing more. Rather than starting with everything but the kitchen sink, start with the bare minimum and add dependencies on an as needed basis.

Clair and Microcontainers belong to "Container Tools" category of the tech stack.

Some of the features offered by Clair are:

  • api defines how users interact with Clair and exposes a documented HTTP API.
  • worker extracts useful informations from layers and store everything in the database.
  • updater periodically updates Clair's vulnerability database from known vulnerability sources.

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

  • Size — MicroContainers are small. As shown above, without changing any code the image is 22 times smaller than a typical image.
  • Fast/Easy Distribution — Because the size is so much smaller, it’s much quicker to download the image from a Docker registry (eg: Docker Hub) and therefore it can be distributed to different machines much quicker.
  • Improved Security — Less code/less programs in the container means less attack surface. And, the base OS can be more secure (more below).

Clair and Microcontainers are both open source tools. It seems that Clair with 5.41K GitHub stars and 696 forks on GitHub has more adoption than Microcontainers with 1.56K GitHub stars and 137 GitHub forks.

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What is Clair?

Clair is a container vulnerability analysis service by CoreOS. It provides the list of vulnerabilities that threaten each container and can sends notifications whenever new vulnerabilities that affect existing containers are released.

What is Microcontainers?

A Microcontainer contains only the OS libraries and language dependencies required to run an application and the application itself. Nothing more. Rather than starting with everything but the kitchen sink, start with the bare minimum and add dependencies on an as needed basis.
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              What are some alternatives to Clair and Microcontainers?
              Iris
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              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.
              Docker Compose
              With Compose, you define a multi-container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running.
              Rancher
              Rancher is an open source container management platform that includes full distributions of Kubernetes, Apache Mesos and Docker Swarm, and makes it simple to operate container clusters on any cloud or infrastructure platform.
              Docker Swarm
              Swarm serves the standard Docker API, so any tool which already communicates with a Docker daemon can use Swarm to transparently scale to multiple hosts: Dokku, Compose, Krane, Deis, DockerUI, Shipyard, Drone, Jenkins... and, of course, the Docker client itself.
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