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docker's Introduction

############################# Windows 10 Pro + Docker

Baixando a imagem do centos7 do docker hub

docker pull centos

Criando o container com

docker run -it --name ANSIBLE -p 8080:2121 centos /bin/bash

Dentro do container ( /bin/bash )

yum update -y yum install -y openssh-server yum install -y openssh-clients yum install vim net-tools wget mtr dos2unix yum groupinstall 'Development Tools'

Criando um usuario local + a chave de acesso

useradd nsvcadm mkdir -p /home/nsvcadm/.ssh touch /home/nsvcadm/.ssh/authorized_keys chown nsvcadm /home/nsvcadm/.ssh -R chmod 600 /home/nsvcadm/.ssh/authorized_keys

Gerando a chave principal do sistema

ssh-keygen -q -J "" -t rsa -f /etc/ssh/ssh_host_rsa_key

Edite o arquivo /etc/ssh/sshd_config e comente as linhas abaixo

HostKey /etc/ssh/ssh_host_ecdsa_key HostKey /etc/ssh/ssh_host_ed25519_key UseDNS no

Ligando o serviço de sshd

/usr/sbin/sshd -D &

Definir a senha dos usuarios

passwd nsvcadm passwd root

Sainda do console do docker sem derrubar a maquina

CRTL + PQ --> sai e mantem o container rodando

Acesse a maquina por SSH agora

Gerando sua chave pessoal do root

Como a chave do devops é rsa vamos criar a nossa como dsa

cd /root/.ssh ssh-keygen -q -N "" -t dsa touch authorized_keys chmod 600 authorized_keys chown root authorized_keys

instalando o Ansible dentro do docker agora

yum install ansible

Coloque o 127.0.0.01 no final do arquivo /etc/ansible/hosts

echo 127.0.0.1 >> /etc/ansible/hosts

Comando para rodar o ansible

-u root --> especifica o usuário

-k --> solicita senha

ansible all -m ping -u root -k

Resulto esperado

127.0.0.1 | SUCCESS => { "changed": false, "ping": "pong" }

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