Comparison between Linux container and Docker

In the embedded world, embedded developers and cloud developers work under different requirements and constraints. Most embedded devices are fixed function, single purpose designs, which are used to perform one thing well, and are often customized for specific functions. Because of this high degree of customization, Linux The release body specifically contains the modules and software packages necessary to help applications perform their functions on the device.

Docker is welcomed by cloud developers for several reasons. They can easily host and download a single application from the Docker Hub's extensive ecosystem. In addition, Docker also makes the construction and management of CICD pipeline extremely simple, efficient and portable. On the other hand, LXD is mainly used for publishing teams that operate Linux and need lightweight system level virtualization.

Because Linux containers are more suitable for system level containerization, they are very suitable for devices requiring portable and dedicated operating systems.

Comparison between Linux container and Docker

1. Virtualization

Linux container: LXC provides complete system virtualization.

Docker: Docker only provides application virtualization.

2. Operating system support

Linux container: provides a basic system environment that supports the core functions of the Linux system.

Docker: It runs natively on Linux, but also supports other operating systems, such as Windows and macOS. The Docker uses its running operating system.

3. Ecosystems and tools

Linux container: operate with bare metal tools and Linux open source tools familiar to system administrators.

Linux containers should be as close to Linux as possible, and embedded developers can use any other tools supported by Linux to operate. Docker Hub is a public image repository that provides access to popular applications.

Docker: Docker is managed by its own customized tool, which is supported by the large cloud local open source project community mainly cooperating with Kubernetes.

4. Ease of use

Linux container: because it is a pure Linux operating system, it is easier to migrate applications from one Linux system to another. The problem is more about managing the distribution body and maintaining the compatibility of the kernel, modules and libraries between different distributions.

Docker: Docker has a strong ecosystem, a large user community, and a wide range of followers. It's easy to get started and deploy applications wherever you need them.

Main advantages of Docker and Linux containers in IoT projects

Another benefit of the Linux container is that most IoT publishing teams are familiar with Linux. Linux is highly customizable. Linux containers can help control any customization of the operating system and make it portable to all embedded devices in the network. This makes it easier for organizations to support DevOps workflows and other best practices for their IoT projects.

In the IoT environment, almost all devices run on Linux. Lighter containers like LXC allow more efficient updates to the operating system. However, for embedded developers, it is also beneficial to be able to easily create a containerized CICD pipeline to provide application and operating system updates to Linux devices.