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DevOps BootCamp

Material for 8 hours Practical Immersion with Golang This is a material in Golang to be presented "face-to-face" in a "hand in hand" Workshop that will be done in 8 hours.

Golang Workshop DevOps

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All content aims at the basic level of the student many practical examples were made with details richness to make life easier than it is initiating.

If you know little and almost nothing programming will not be problem every manual was made to level starting to advanced. All the difficulties I had when I started trying to contemplate this material. We will try to improve the material all the time so we can have a reference when it comes to Go.

I hope you all enjoy it and can serve as a base for learning and help several possible Gophers.

The content and references used are from the Golang Official Site and the material being developed which is a compilation of all Golang language and can be checked here jeffotoni/Compilation.

Some presentations I made can be viewed here Presentations.

There are thousands of references today regarding Golang, let's start at the beginning and we could not stop talking about Golang Tour. Well that site here Play Golang or Play Go Space we can play Golang online.

We have a very interesting link that we have been able to search for packages written in Golang check out this link: Go Doc

We have this link that presents us as a manual all libs developed in Golang Dev Docs

Here we find an awesome go, there are several lists as it is, and sometimes it's cool to check out some libs to help us with some projects. awesome-go

Soon below some channels that I participate and can find me online.

Telegram:

• gobr

Slack:

• gophers.slack.com
  • Brazil
  • Brasil
  • General
  • Go-kit
  • Gotimefm

Lab 01 Install and Commands Golang

• Overview
• Introduction Installation
  • Installation
    • Linux
    • $GOPATH
    • Test your installation
    • Workspace
    • Outside GOPATH
• Installation Docker
  • Install Docker to Golang
  • Compile your app Inside the Docker Container
  • Cross-compile Your app Inside the Docker Container
• Introduction Golang
  • Golang Language
    • Keywords
    • Operators and Punctuation
    • Println Print
    • Bufio NewWriter
    • Func Main
• Go Commands
  • Go Commands Introduction
  • Go Run
  • Go Build
  • Go Install
  • Go Get
  • Go Mod
  • Go Mod Init
  • Go Mod Vendor
  • GO111MODULE
  • Go Test

Lab 02 The Golang Types

• Types
  • Numeric Types
  • String Types
  • Pointer Types
  • Array Types
  • Slice Types
  • Struct Types
  • Struct In C
  • Struct Type Tags Json
  • Fatih Structs to Map
  • Map Types
  • Map Literals Continued
  • Channel Types
  • Blank Identifier
  • Interface Types
    • Here's an Interface as a Method
    • Interface as Type
  • Exercise One
• Control Structures
  • Control
    • Control Return
    • Control Goto
    • Control if Else
    • Control For Break Continue
    • Control Switch Case Break
    • Control Label
    • Control Range
• Errors
  • Introduction Errors
    • How Error Control Works
    • Errors New
    • Custom Errors
    • fmt Errorf
• Functions
  • Introduction Function
    • Return Multiple Values
    • Variadic Functions
    • Functions as a Parameter
    • Closures
    • Recursion
    • Asynchronous Functions
• Defer
• Exercise Two

Lab 03 Parse with Golang, Yaml, Toml and Json

• Json
  • Introduction
    • Json Marshal Encode
    • Json MarshalIndent
    • Option Omitempty
    • Initialized Collections of Data
    • Json NewEncoder
    • Json Unmarshal Decode
    • Generic JSON with Interface {} and Assertion
    • Dynamic Type
    • What is Reflection
    • Making Reflect with Struct
• Parse Json
  • Reading and Parsing a JSON File
  • Parsing with Structs
  • Parsing with Map and Interface
  • Parsing in Yaml Format Using Go
  • Parsing in Toml Format Using Go
  • Parsing with Viper
• Links Json to Golang
• Exercise Three

Lab 04 Building apis with net/http

• Introduction http

  • Type Handler
  • Type HandlerFunc
  • Func http Handlefunc
  • Func http Handle
  • Func http Error
  • Constants Common HTTP Methods
  • Type ServeMux
  • Type NewServeMux
  • Func ServeMux HandleFunc
  • Type ServeMux Handle
  • Func ListenAndServe
  • Func ListenAndServeTLS
  • Other Muxes
  • Testing Http endpoints
  • Http Shutdown Gracefully
  • Middleware
  • http DetectContentType
  • http DetectContentType

• Exercise Five

• net/http Client

  • Introduction
    • http.Transport
    • http.Client
    • http.Get
    • http,Post
    • http.NewRequest
    • Context.WithCancel

• Exercise Six

• net/http Server Pages

  • Introduction
    • http.FileServer
    • http.NotFound
    • Disable http.FileServer
    • http.Dir
    • http.StripPrefix

• Exercise Seven

Lab 05 Using Golang to Create Command Line Programs

• Golang Cli

  • Introduction
    • Environment Variables
    • Open and Read File
    • Write File
    • New Scanner and Scan
    • Stdout
    • Stdin
    • Go Flag Types
    • Go Flag Parse
    • Go Flag PrintDefaults
    • Os Args
    • Func Init
    • Go Exec Command
    • Parse Url
    • Parse Yaml

• Exercise Five

Lab 06 Goroutine The Power

• Goroutine

  • Introduction
    • Channel
    • Parallelism
    • GOMAXPROCS
    • WaitGroup
    • Race Conditions
    • Worker
    • Context
    • Ticker
    • Singleton Connect Thread Safe

• Exercise Four

Overview

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Go is a powerful language when it comes to competition and high performance, with a clean and efficient architecture. It grows year after year and every day the communities grow even more.

Some paradigms have been broken to make it a high performance language, where competition is one of its strengths. Go makes it easy to create programs that take full advantage of multicore and networked machines, while the new type system allows you to build flexible and modular programs.

It is a fast and statically compiled language that looks like a dynamically interpreted language. This feature Golang becomes a unique language as the subject is web.

Go is a compiled, competing, strong and statically typed programming language. It is a "General Use" language that can be used to solve various problems and in different areas. Problems involving competition, web applications, high performance applications, development of APIs, communications sockets etc ... Is where language is increasingly becoming prominent in the market and in communities.

Introduc