Programmer Group

To read this article, you must know the basic docker. This article only provides ideas and part of the code, not responsible for teaching All orders must be handled carefully! look before you leap command Stop all running containers docker stop $(docker ps -a -q) Delete all containers docker rm $(docker ps -a -q) Using docker compose to start t ...

I. deploy the master node 1.1 master node service The kubernetes master node runs the following components: kube-apiserver kube-scheduler kube-controller-manager kube-nginx Kube apiserver, Kube scheduler and Kube controller manager all run in multi instance mode: Kube scheduler and Kube controller manager will automatically elect ...

What are system services?System services are bindings that identify the class used by the program before it is used, so that the container can parse it (via the register method of the service class), initialize some parameters, register routes, etc. (not limited to these operations, but mainly look at the needs of a class before it is used, con ...

Date:2019-11-15 Think before reading: You didn't think of a solution? Is PostgreSQL database supported by itself or is there another solution?   Note: first of all, the reason why the database uses the Json data type is that when we do an app push business, the backend pushes several fields to the app We use jsonb data type directly here. Using ...

I. deployment of kubectl 1.1 installation of kubectl 1 [root@k8smaster01 ~]# cd /opt/k8s/work 2 [root@k8smaster01 work]# wget https://dl.k8s.io/v1.14.2/kubernetes-client-linux-amd64.tar.gz 3 [root@k8smaster01 work]# tar -zxvf kubernetes-client-linux-amd64.tar.gz 1.2 distribution of kubectl 1 [root@k8smaster01 ~]# cd /opt/k8s/work ...

Need to make a check-in calendar, first simply make the effect of the calendar, directly share the source code, if you need to use it directly <template> <div> <!-- Calendar head --> <div class="calenderTitle"> <div class="calenderItem" v-for="item of calenderTitel">{{item}}</div> </di ...

After a series of twists and turns, it is still convenient for delphi to read and modify json files; Find a delphi tripartite library ISuperObject on the network, add it to the project and reference it directly; Download address Several commonly used functions in ISuperObject: Function SO(const s: SOString = '{}'): ISuperObject; overload; ...

Start In the previous article, I learned the overall process of the Gin framework, but I looked at the research of the main process in the source code which was affected by many scattered and small functions. So I think I can imitate the Gin framework and write a demo with only the main process. We can learn more about the source code in the pr ...

Preface The text and pictures of the article are from the Internet, only for learning and communication, and do not have any commercial use. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Author: cold city of Yishui PS: if you need Python learning materials, you can click the lin ...

find() Model.find(filter[, projection][, options][, callback]) Parameter 1: filter The query condition uses the format of JSON document, and the syntax of JSON document follows MongoDB shell The same is true. { field1: value1, field2: { operator: value2 } ... } 1. Find all Model.find() Model.find({}) 2. Accurate search Model.find({author:'dora' ...