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This article focuses on "what are the advantages of docker in cluster deployment". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what are the advantages of docker deployment in a cluster?"

A single docker can deploy multiple identical service instances to complete the cluster of redis, mysql, tomcat, etc. However, due to the hardware limitations of its own host, such a cluster is actually the same as the provisionable resources of redis, mysql, tomcat of a single service.

In order to break through the limitations of hardware and achieve scalable capacity, it is necessary to carry out docker clustering. Each docker generally starts only one service instance, and then clusters the service instances through the docker of multiple hosts. However, there is such a question: when there are multiple docker, you can cluster service instances without clustering, so why do you have to cluster docker?

Mainly through docker clustering, commands can be executed uniformly in the cluster manager directly, thus avoiding the need for each docker instance to enter the same command.

Easy to deploy and manage

From the manager's point of view, compared with the actual production environment, the cluster environment is relatively pure and clean (especially for companies with long business lines), horizontal expansion can be very convenient, and it can be easily expanded, deployed and migrated. Combined with the technical characteristics of docker fast online and offline, it makes the dynamic adjustment of deployment very convenient.

Compatible with the actual environment

A pure and clean cluster environment is suitable for new business deployment. Combined with the use of images, development, release and deployment can be encapsulated into an one-stop process to achieve efficient and rapid development iteration and release deployment.

High efficiency and cost saving

If the company creates a set of pure cluster deployment environment, it can expand and scale in batches quickly, and the flexible expansion of the cluster itself is more convenient, and it can efficiently realize the stupid automation of the deployment process pursued by operation and maintenance personnel, which can be evaluated from a human point of view. Cost-saving, very efficient.

With Docker+ micro-services, developers can run their micro-services on a stand-alone or cloud platform, and as long as their micro-services are configured with Docker, they can walk away without resistance.

At this point, I believe you have a deeper understanding of "what are the advantages of docker deployment in the cluster". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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