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This activity is held on WeChat official account (my small bowl soup), and there is book delivery activity. You can't take part in the book delivery activity if you take part in the question answering here! Yesterday's examination questions Create a deployment with a single command and expose the Service. The deployment and Service names are ...

Extras: Why did you insist on using k8s to realize the existing business? There is a strong impetus that the original virtual deployment of elastic cluster can no longer adapt to the expansion of business scale. It is nightmarish to set up large-scale elastic cluster on virtual machine. Therefore, we are determined to deploy in a container way ...

previously on My system environment is: CentOS Linux release 7.7.1908 (Core) Before installing Harbor, you need to install Docker and Docker compose (the installation of these two items will not be described in detail) Harbor introduction Harbor is an open-source project, which is used to store and distribute Docker images. It extends Docker D ...

ELk introduction E: Elasticsearch stores data java 50: Logstash collection, filtering, forwarding, matching, large, slow start, middle role java K: Kibana filtering, analysis, graphic presentation java F: Filebeat collects logs and filters go Basic architecture diagram Traditional log analysis requirements (interview) 1. Find out the top ten ...

Docker container docker container is another core concept. Container is a running instance of image. The difference is that the image is a static read-only file, the container has a writable layer required by the runtime, and the application process in the container is running.Virtual machine is to simulate a whole set of operating system. doc ...

Preface What is elastic search? Since it's English, let's take a look at its literal meaning with the help of an elastic search. It can be divided into two independent words, elastic and search. In this case, we have no brain and have a wave. The explanation is as follows: From the perspective of a reasonable explanation, we can simply underst ...

Node-RED does not need to enter a user name and password by default. There is actually a very simple administrator's login page that can be blocked out a bit. By default, it is commented out in settings.js and you can see the simplest login page by opening it.This usage feature is described in this art ...

In the previous section, we talked about the network namespace of linux, created the veth, and then made the network of the two network namespaces interoperate. After the docker creates the container, it will be found that the external network can be accessed in the container, and the network between th ...

Problem Description: as a rookie, in the process of learning spring boot, I want to watch the teacher's video once and knock myself to impress myself a little bit. As a result, the problem comes. @The Reference of the Reference annotation reported a null pointer exception. After more than two hours of t ...

If there are many picture resources in a project, there will be special picture servers to store pictures. You can observe that the links of pictures on some large websites have special servers, which can improve the performance very well. There are many image server solutions. Through the storage servi ...