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ansible_with_docker's Introduction

Utilizando Ansible com Docker

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O que é Ansible?

É uma ferramenta de gerenciamento e provisionamento de configurações.

Instalar o Ansible no Ubuntu.

sudo easy_install pip sudo pip instalar ansible

Agora o Ansible está instalado.

ansible --version

O que é Docker?

fazeendo download da image ubuntu 16.04

docker pull ubuntu:16.04

Iniciando um container Ubuntu

docker run -t -d --name ubuntu ubuntu:16.04

Conectando no container Ubutu

docker exec -it ubuntu /bin/bash

Instalando alguns pacotes

apt-get update && apt-get upgrade -y && apt-get install openssh-server openssh-client vim build-essential sudo python -y

Iniciando o SSH

/etc/init.d/ssh start


Crie um usuário diferente de root:

adduser fsantoss | password 123456

adduser fsantoss sudo

visudo
%sudo ALL=(ALL) NOPASSWD: ALL

mkdir /home/fsantoss/.ssh

No desktop rodar o comando abaixo

cat ~/.ssh/id_rsa.pub | sua chave publica do seu notebook

Em seguida, copie a chave pública para:

vim /home/fsantoss/.ssh/authorized_keys

Acessando via SSH o Container

docker ps -q

docker inspect "id_container" --format '{{.NetworkSettings.IPAddress}}'

docker exec -it "id_container" bash -c "/etc/init.d/ssh status"

docker exec -it "id_container" bash -c "/etc/init.d/ssh restart"

Criando um grupo no hosts do Ansible

vim /etc/ansible/hosts

[containers]
172.17.0.3

Testando comunicação com o host cadastrado

ansible containers -m ping

Instalando o nginx no Container

ansible containers -s -m apt -a 'pkg=nginx state=installed update_cache=true'

Iniciando o Nginx

docker ps -q docker exec -it "id_container" bash -c "/etc/init.d/nginx start"

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