Which one should I buy to install docker on a small server?

Preface

In recent years, containerization technology has made great progress, and Docker, as a representative, has emerged in various fields. Many service providers provide small servers running Docker. These small servers are expensive, and there are some considerations in selection. This article discusses how to choose a server suitable for running Docker when purchasing a small server from the perspective of small server selection.

1. Server Selection

When selecting a server, we need to consider the following factors:

1. Processor

Processor It is the core component of the server. Different processors have different performance and power consumption differences. If you are running lighter-weight applications, just buy one or two processors. If you are running heavier applications, it is recommended to purchase 3 or more processors.

2. Memory

Memory is where the server stores operating data, which determines the "response speed" of the server. For some CPU-intensive applications, we recommend purchasing 16GB or more memory. Some storage-intensive applications generally require larger memory space.

3. Hard disk

The hard disk is the storage device of the server, which stores the operating system, application software and data files required for the server to run. SSD (Solid State Drive) is fast and suitable for quickly reading and accessing data, but it is more expensive. Ordinary mechanical hard drives are relatively cheap and have larger capacities.

4. Network

The network is the link between the server and the external environment and the entrance to handle external requests. Most servers support network speeds of Gigabit or above. If a cloud computing architecture is adopted, it is recommended to choose a server with multiple network interfaces, which can improve network throughput.

2. Docker Features

We need to understand the features and advantages of Docker, the "container" technology, which is also very meaningful for choosing a small server. The main features of Docker are as follows:

1. Easy to use

Docker has simple and easy to use features, users can easily build, publish, manage and run applications program, greatly reducing dependence on existing software architecture.

2. Easy to operate

Docker is very simple to operate and has few commands. Even beginners can get started quickly, saving a lot of time and energy.

3. Strong portability

Docker containers have strong portability, that is, the same container can be deployed on multiple operating systems without considering the differences in operating systems. , runs normally on other systems.

4. Elastic expansion

Docker containers can be expanded and reduced at any time, and the number of containers can be increased or reduced as needed to meet the needs of applications of different sizes and can Save server resources.

3. Selection of small servers

Based on the above server selection and the characteristics of Docker, we recommend some small servers suitable for running Docker.

1. HPE ProLiant MicroServer Gen10 Plus

HPE ProLiant MicroServer Gen10 Plus is an entry-level small server with only one Intel Pentium G5420 processor but supports 16GB of memory , and 4 SATA 3.0 hard drive slots. This device can control the allocation of different containers and can adapt to a variety of different application scenarios. It is very suitable for users who are trying Docker for the first time.

2. Dell PowerEdge T40

Dell PowerEdge T40 is a small server that supports multiple operating systems. It is equipped with Intel Xeon E-2224G processor, supports 16GB memory and 4 A 3.5-inch hard drive slot. The device supports multiple languages ​​and is a small server with powerful performance, suitable for running some more complex applications.

3. Lenovo ThinkServer TS150

Lenovo ThinkServer TS150 is an inexpensive small server equipped with Intel Core i3-6100 processor, supports 32GB of memory and four 3.5-inch Hard drive slot. The device has excellent expansion capabilities and is cost-effective, making it suitable for small businesses and individual users.

4. SuperMicro SYS-E300-9A

SuperMicro SYS-E300-9A is a compact server that supports Intel Atom C3558 processor, built-in 4GB memory and 1 2.5-inch hard drive slot. The device is small in size, energy-saving and environmentally friendly, and is suitable for deploying multiple Docker containers in a small space.

Conclusion

To choose a small server suitable for running Docker containers, you not only need to consider the parameters of the server, but also need to have an in-depth understanding of the characteristics of Docker to compare and purchase servers. Purchase is also limited to scenarios that require running Docker. The small servers recommended in this article are for reference only. Readers can also choose the appropriate server according to their specific needs and budget.

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