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How to Optimize MySQL Queries for Speed and Performance
original url: https://dzone.com/articles/how-to-optimize-mysql-queries-for-speed-and-perfor

In this guide, we will take you through the steps of optimizing SQL queries and databases on your Alibaba Cloud Elastic Compute Service (ECS) instance. This will guarantee stability, scalability, reliability and speed of applications and websites running on your Alibaba Cloud instance.
Prerequisites

    A valid Alibaba cloud account. If you don't have one already, you can sign up for an Alibaba Cloud and enjoy $300 worth in Free Trial.
    A server running your favorite operating system that can support MySQL (e.g. Ubuntu, Centos, Debian).
    MySQL database server.

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"Weeks of programming can save you hours of planning." - A Harckernews pt-BR "Semanas de programação podem te economizar horas de planejamento" - Hackernews

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Como Instalar e Usar o Docker no Ubuntu 18.04 PostedNovember 16, 2018 113.3k views DockerUbuntu 18.04

By Brian Hogan

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Uma versão anterior deste tutorial foi escrita por finid.

Introdução

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Kubernetes vs Docker

swarm	kubernetes
docker service list	kubectl get pods
docker service logs service-name	kubectl logs deployment-name container-name
docker exec -it container-id command	kubectl exec -it pod-name [-c container-name] -- command
	kubectl describe pod/srv pod-name/srv-name

Container Image Auto Update

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apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 2 # tells deployment to run 2 pods matching the template
  template:

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name: default

kind: pipeline
type: docker

steps:
- name: backend
  image: golang
  commands:
    - go get

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Buildbot python http://buildbot.net/ https://docs.buildbot.net/current/tutorial/

Drone.io GO https://drone.io github.com/drone https://docs.drone.io/server/provider/github/

GitLab https://about.gitlab.com/stages-devops-lifecycle/continuous-integration/

Jenkins Java https://www.jenkins.io/doc/book/pipeline/

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server {
   listen       80;
   server_name  localhost;
   location / {
       root   /usr/share/nginx/html;
       index  index.html index.htm;
   }
   location /api/ {
       proxy_pass  http://localhost:5000/;
   }

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FROM golang as build-env
WORKDIR /app
ADD ./vendor/* /go/src/github.com/
ADD . /app
ENV GOOS=linux 
ENV GOARCH=amd64 
ENV CGO_ENABLED=0

RUN cd /app && go build -o app

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package main

import (
    "context"
    "fmt"
    "log"
    "net/http"
    "os"
    "os/signal"
    "sync"