go

README

GO

Documentación de Go

Go es un lenguaje de programacion concurrente y compilado con tipado estatico inspirado en la sintaxis de C, pero con seguridad de memoria y recoleccion de basura. Actualmente esta esta disponible e formato binario para los sistemas operativos. Go es un lenguaje de programacion compilado, concurrente, inperativo, estructurado y orientado a objetos que de momento esta disponible para diferentes tipos de sistemas

# GO

WHAT IS GO?

It is a programming language developed at Google. DEVELOPED BY: Robert Griesemer

docker kubernetes Terraform

It is an open source language, it is a compiled programming language which facilitates They are compiled into a single, independent binary file, making them easy to distribute. uses and sharing supports cross compilation, allows compilation of windows for linux or linux for windows

It is a multiparadigm language

Concurrency management

It has a large standard library, sharing similarities with Java, Python and others.

TIOBE

page where we can see what rank go is in

USE CASES

Systems level applications, Web applications, network level applications and the cloud command line tools and uses, distributed systems, base implementation of data. go.dev (check the different packages).

What do we need?

Documentation in go.dev/doc/tutorial/getting-started editors to work with go go.dev/doc/editors

Plaground of go

We can share go code, we can locate it at go.dev/play/ All go files have their own example package: the package main (package main) LIMITATIONS: We cannot work with external packages

Install go in your OS

Copy the link address from the do.dev/dl/ page

https://go.dev/dl/go1.21.3.linux-amd64.tar.gz

Install and download from Terminal

cd download
sudo apt install wget

Discharge

wget https://go.dev/dl/go1.21.3.linux-amd64.tar.gz

Uninstall the previous version

$ sudo rm -rf /usr/local/go

Unzip the file

$ sudo tar -C /usr/local -xzf go1.21.3.linux-amd64.tar.gz

go to download directory: cd /usr/local/ ,ls , cd go/ , ls , cd bin/ , ls

Add the environment variables in $HOME/.profile to the PATH (for the current user) /etc/profile (for all users)

For current user

CD
pwd
ls -la

find the .profile file, modify the file with:

nano .profile

nano .profile

then in the final part paste the following code:

export PATH=$PATH:/usr/local/go/bin

It is the place where go is installed, to save the file CTRL+o and finally CTRL+x

The changes that were made within our .profile file are reflected after starting session again on our computer, but we can execute the following code to execute the changes at home plate.

source $HOME/.profile
go version

GO environment variables

Create our workspace

go send

Where you point to the go workspace. search GOPATH="/home/lady-quinto/go"

Create the folder, in this place the packages (pkg), the binaries (bin) and the tools used in the application will be stored, where the go folders (src) will be created.

mkdir go
cd go/
mkdir src
cd src/

Third party packages

packages that were not developed in go, then we must initialize a module manager

module manager, initialize the module manager, name with which the modules will be managed

cd go/
cd src/
cd hello world
go mod init hello world
go mod tidy

ls, then a go.mod file will be created that allows you to manage the modules and the dependencies of your modules

quote package has famous quotes from hello world, rsc.io/quote repository path of quote package

go get rsc.io/quote

Problems with your package generation

Go to Main Menu (4 lines to the right) -> settings -> Go Modules -> check the check on "Enable Go modules integration"

command to run and compile GO applications

go run

Install mysql in your OS

sudo apt update
sudo apt install mysql-server

Step 2: Configure the kubeconfig file

You need to set up the kubeconfig file to access the cluster. If you already have a kubeconfig file, you can skip this step.

microk8s config > $HOME/.kube/config-local

Step 3: Install and setup lens

sudo