Documentação Ansible-br > Primeiros Passos > Guia Rápido > Passo 7 - Dicas e truques

Passo 7 - Dicas e truques

1) Criar relação de confiança Hosts Linux

Para se conectar aos Hosts Linux, o meio mais prático é criar relação de confiança entre o Ansible Control e os Hosts alvo:

Gerar uma chave de conexão

$ ssh-key-gen

Expandir saída

Generating public/private rsa key pair.
Enter file in which to save the key (/home/usuario/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/usuario/.ssh/id_rsa.
Your public key has been saved in /home/usuario/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:V3HiftgtJiQ6TZA1sP1GBaIu1ueHJs2sFcVykr0KtbM usuario@localhost.localdomain
The key's randomart image is:
+---[RSA 2048]----+
|        o++ +.o  |
|        .= B =   |
|        o O X    |
|       o = & + . |
|      o S B B = .|
|     . . X B + . |
|        . E .    |
|         = .     |
|        .        |
+----[SHA256]-----+

Copiar o ID para o Hosts alvo

$ ssh-copy-id <nome_host>

Expandir saída

/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/home/usuario/.ssh/id_rsa.pub"
The authenticity of host 'localhost (::1)' can't be established.
ECDSA key fingerprint is SHA256:bu8qjbMTNPCVu3Ng9T971h6XMh9K9+i+l8VRrLABg6A.
ECDSA key fingerprint is MD5:d4:37:ed:7d:db:bd:bc:f8:1e:2a:de:7d:5e:f1:d6:3f.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
usuario@localhost's password:

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'localhost'"
and check to make sure that only the key(s) you wanted were added.

2) Outras opções de conexão com os Hosts Alvo

Solicitando a senha do usuário pelo prompt `--ask-pass`

$ ansible-playbook -i /etc/ansible/hosts-test playbook.yml --ask-pass
SSH password:
PLAY [1 - Criando servidores web] ***************************************************************************
TASK [Gathering Facts] **************************************************************************************
ok: [web1.example.com]
ok: [web2.example.com]

Expandir outras opções de conexão

Opções de Conexão:
    controle de quem e como se conectar aos hosts
    -k, --ask-pass      pede senha para a conexão
    --private-key=PRIVATE_KEY_FILE, --key-file=PRIVATE_KEY_FILE
                        usa esse arquivo para autenticar a conexão
    -u REMOTE_USER, --user=REMOTE_USER
                        conecta como este usuário (default=None)
    -c CONNECTION, --connection=CONNECTION
                        tipo de conexão a usar (default=smart)
    -T TIMEOUT, --timeout=TIMEOUT
                        sobrescreve o timeout da conexão em segundos
                        (default=10)
    --ssh-common-args=SSH_COMMON_ARGS
                        especifica os argumentos comuns para passar ao sftp/scp/ssh (e.g.
                        ProxyCommand)
    --sftp-extra-args=SFTP_EXTRA_ARGS
                        especifica os argumentos extras para passar somente ao sftp (e.g. -f,
                        -l)
    --scp-extra-args=SCP_EXTRA_ARGS
                        especifica os argumentos extras para passar somente ao scp  (e.g. -l)
    --ssh-extra-args=SSH_EXTRA_ARGS
                        especifica os argumentos extras para passar somente ao ssh  (e.g. -R)

Solicitando senha para escalar privilégios pelo prompt `--ask-become-pass`

ansible-playbook -i /etc/ansible/hosts-test playbook.yml --ask-become-pas
SUDO password[defaults to SSH password]:
PLAY [1 - Criando servidores web] ***************************************************************************
TASK [Gathering Facts] **************************************************************************************
ok: [web1.example.com]
ok: [web2.example.com]

Expandir outras opções de escalação de privilégios

Privilege Escalation Options:
    control how and which user you become as on target hosts

    -s, --sudo          run operations with sudo (nopasswd) (deprecated, use
                        become)
    -U SUDO_USER, --sudo-user=SUDO_USER
                        desired sudo user (default=root) (deprecated, use
                        become)
    -S, --su            run operations with su (deprecated, use become)
    -R SU_USER, --su-user=SU_USER
                        run operations with su as this user (default=root)
                        (deprecated, use become)
    -b, --become        run operations with become (does not imply password
                        prompting)
    --become-method=BECOME_METHOD
                        privilege escalation method to use (default=sudo),
                        valid choices: [ sudo | su | pbrun | pfexec | doas |
                        dzdo | ksu | runas ]
    --become-user=BECOME_USER
                        run operations as this user (default=root)
    --ask-sudo-pass     ask for sudo password (deprecated, use become)
    --ask-su-pass       ask for su password (deprecated, use become)
    -K, --ask-become-pass
                        ask for privilege escalation password

3) Listagem de Hosts e Tasks das Playbooks

Listando todos os Hosts das Playbooks: `--list-hosts`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml --list-hosts

Expandir saída

playbook: playbook.yml
  play #1 (webservers): 1 - Criando servidores web  TAGS: []
    pattern: [u'webservers']
    hosts (2):
      web2.example.com
      web1.example.com
  play #2 (dbservers): 2 - Criando o servidor de banco  TAGS: []
    pattern: [u'dbservers']
    hosts (1):
      db.example.com

Listando todas as TASKS das Playbooks: `--list-tasks`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml --list-tasks

Expandir saída

playbook: playbook.yml
  play #1 (webservers): 1 - Criando servidores web  TAGS: []
    tasks:
      garantiar que o Apache esteja na última versão    TAGS: []
      conter a linha '127.0.0.1 teste' no arquivo /etc/hosts    TAGS: []

  play #2 (dbservers): 2 - Criando o servidor de banco  TAGS: []
    tasks:
      garantir que o mysqld (MariaDB) está na última versão TAGS: []
      garantir que o  mysqld (MariaDB) está executando (e habilitá-lo no boot)  TAGS: []

4) Checagem de sintaxe

Checando a sintaxe YAML: `--syntax-check`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml --syntax-check

Expandir saída

ERROR! Syntax Error while loading YAML.

The error appears to have been in '/home/usuario/playbook.yml': line 4, column 10, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

- name: 1 - Criando servidores web
    hosts: webservers
         ^ here

5) Saltos

Confirmando a execução das TASKs: `--step`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml --step

Expandir saída

PLAY [1 - Criando servidores web] ***************************************************************************
Perform task: TASK: Gathering Facts (N)o/(y)es/(c)ontinue: y

Perform task: TASK: Gathering Facts (N)o/(y)es/(c)ontinue: **************************************************

TASK [Gathering Facts] **************************************************************************************
ok: [web2.example.com]
ok: [web1.example.com]
Perform task: TASK: garantiar que o Apache esteja na última versão (N)o/(y)es/(c)ontinue: y

Perform task: TASK: garantiar que o Apache esteja na última versão (N)o/(y)es/(c)ontinue: *******************

TASK [garantiar que o Apache esteja na última versão] *******************************************************
ok: [web2.example.com]
ok: [web1.example.com]

Iniciando a Playbook a partir de uma TASK: `--start-at-task`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml --start-at-task="garantir que o mysqld (MariaDB) está na última versão"

Expandir saída

PLAY [1 - Criando servidores web] ***************************************************************************

PLAY [2 - Criando o servidor de banco] **********************************************************************

TASK [Gathering Facts] **************************************************************************************
ok: [db.example.com]

TASK [garantir que o mysqld (MariaDB) está na última versão] ************************************************
ok: [db.example.com]

TASK [garantir que o  mysqld (MariaDB) está executando (e habilitá-lo no boot)] *****************************
ok: [db.example.com]

PLAY RECAP **************************************************************************************************
db.example.com             : ok=3    changed=0    unreachable=0    failed=0

Limitando a execução da playbook: `--limit`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml --limit web1.example.com

Expandir saída

PLAY [1 - Criando servidores web] ***************************************************************************

TASK [Gathering Facts] **************************************************************************************
ok: [web1.example.com]

TASK [garantiar que o Apache esteja na última versão] *******************************************************
ok: [web1.example.com]

TASK [conter a linha '127.0.0.1 teste' no arquivo /etc/hosts] ***********************************************
ok: [web1.example.com]

PLAY [2 - Criando o servidor de banco] **********************************************************************
skipping: no hosts matched

PLAY RECAP **************************************************************************************************
web1.example.com           : ok=3    changed=0    unreachable=0    failed=0

6) Depurando (Debug)

Executando a playbook em Debug modo 1: `-v`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml -v

Expandir saída

Using /etc/ansible/ansible.cfg as config file

PLAY [1 - Criando servidores web] ***************************************************************************

TASK [Gathering Facts] **************************************************************************************
ok: [web1.example.com]
ok: [web2.example.com]

TASK [garantiar que o Apache esteja na última versão] *******************************************************
ok: [web2.example.com] => {"changed": false, "msg": "Nothing to do"}
ok: [web1.example.com] => {"changed": false, "msg": "Nothing to do"}

Executando a playbook em Debug modo 2: `-vv`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml -vv

Expandir saída

Using /etc/ansible/ansible.cfg as config file

PLAYBOOK: playbook.yml **************************************************************************************
2 plays in playbook.yml

PLAY [1 - Criando servidores web] ***************************************************************************

TASK [Gathering Facts] **************************************************************************************
ok: [web1.example.com]
ok: [web2.example.com]
META: ran handlers

TASK [garantiar que o Apache esteja na última versão] *******************************************************
task path: /home/vagrant/playbook.yml:8
ok: [web1.example.com] => {"changed": false, "msg": "Nothing to do"}
ok: [web2.example.com] => {"changed": false, "msg": "Nothing to do"}

Executando a playbook em Debug modo 3: `-vvv`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml -vvv

Expandir saída

Using /etc/ansible/ansible.cfg as config file

PLAYBOOK: playbook.yml **************************************************************************************
2 plays in playbook.yml

PLAY [1 - Criando servidores web] ***************************************************************************

TASK [Gathering Facts] **************************************************************************************
Using module file /usr/lib/python2.7/site-packages/ansible/modules/system/setup.py
<web2.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web2.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
Using module file /usr/lib/python2.7/site-packages/ansible/modules/system/setup.py
<web1.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web1.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<web2.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505758887.22-149098275158416 `" && echo ansible-tmp-1505758887.22-149098275158416="` echo /root/.ansible/tmp/ansible-tmp-1505758887.22-149098275158416 `" ) && sleep 0'
<web1.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505758887.23-186920271278507 `" && echo ansible-tmp-1505758887.23-186920271278507="` echo /root/.ansible/tmp/ansible-tmp-1505758887.23-186920271278507 `" ) && sleep 0'
<web2.example.com> PUT /tmp/tmpr3Pb0C TO /root/.ansible/tmp/ansible-tmp-1505758887.22-149098275158416/setup.py
<web2.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505758887.22-149098275158416/ /root/.ansible/tmp/ansible-tmp-1505758887.22-149098275158416/setup.py && sleep 0'
<web1.example.com> PUT /tmp/tmpXsqZud TO /root/.ansible/tmp/ansible-tmp-1505758887.23-186920271278507/setup.py
<web1.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505758887.23-186920271278507/ /root/.ansible/tmp/ansible-tmp-1505758887.23-186920271278507/setup.py && sleep 0'
<web1.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505758887.23-186920271278507/setup.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505758887.23-186920271278507/" > /dev/null 2>&1 && sleep 0'
<web2.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505758887.22-149098275158416/setup.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505758887.22-149098275158416/" > /dev/null 2>&1 && sleep 0'
ok: [web2.example.com]
ok: [web1.example.com]
META: ran handlers

TASK [garantiar que o Apache esteja na última versão] *******************************************************
task path: /home/vagrant/playbook.yml:8

Using module file /usr/lib/python2.7/site-packages/ansible/modules/packaging/os/dnf.py
<web2.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web2.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
Using module file /usr/lib/python2.7/site-packages/ansible/modules/packaging/os/dnf.py
<web1.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web1.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<web2.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505758887.98-268212739924402 `" && echo ansible-tmp-1505758887.98-268212739924402="` echo /root/.ansible/tmp/ansible-tmp-1505758887.98-268212739924402 `" ) && sleep 0'
<web1.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505758887.99-60716236244879 `" && echo ansible-tmp-1505758887.99-60716236244879="` echo /root/.ansible/tmp/ansible-tmp-1505758887.99-60716236244879 `" ) && sleep 0'
<web1.example.com> PUT /tmp/tmpoO3S1e TO /root/.ansible/tmp/ansible-tmp-1505758887.99-60716236244879/dnf.py
<web1.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505758887.99-60716236244879/ /root/.ansible/tmp/ansible-tmp-1505758887.99-60716236244879/dnf.py && sleep 0'
<web2.example.com> PUT /tmp/tmprEr4zm TO /root/.ansible/tmp/ansible-tmp-1505758887.98-268212739924402/dnf.py
<web2.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505758887.98-268212739924402/ /root/.ansible/tmp/ansible-tmp-1505758887.98-268212739924402/dnf.py && sleep 0'
<web1.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505758887.99-60716236244879/dnf.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505758887.99-60716236244879/" > /dev/null 2>&1 && sleep 0'
<web2.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505758887.98-268212739924402/dnf.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505758887.98-268212739924402/" > /dev/null 2>&1 && sleep 0'
Using /etc/ansible/ansible.cfg as config file

Executando a playbook em Debug de conexão: `-vvvv`

$ sudo ansible-playbook -i /etc/ansible/hosts-test playbook.yml -vvvv

Expandir saída

Using /etc/ansible/ansible.cfg as config file
Loading callback plugin default of type stdout, v2.0 from /usr/lib/python2.7/site-packages/ansible/plugins/callback/__init__.pyc

PLAYBOOK: playbook.yml ***************************************************************************************************************************************
2 plays in playbook.yml

PLAY [1 - Criando servidores web] ****************************************************************************************************************************

TASK [Gathering Facts] ***************************************************************************************************************************************
Using module file /usr/lib/python2.7/site-packages/ansible/modules/system/setup.py
<web2.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web2.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
Using module file /usr/lib/python2.7/site-packages/ansible/modules/system/setup.py
<web1.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web1.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<web2.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759060.8-152711064366180 `" && echo ansible-tmp-1505759060.8-152711064366180="` echo /root/.ansible/tmp/ansible-tmp-1505759060.8-152711064366180 `" ) && sleep 0'
<web1.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759060.81-245677638709054 `" && echo ansible-tmp-1505759060.81-245677638709054="` echo /root/.ansible/tmp/ansible-tmp-1505759060.81-245677638709054 `" ) && sleep 0'
<web2.example.com> PUT /tmp/tmpaKgICu TO /root/.ansible/tmp/ansible-tmp-1505759060.8-152711064366180/setup.py
<web2.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759060.8-152711064366180/ /root/.ansible/tmp/ansible-tmp-1505759060.8-152711064366180/setup.py && sleep 0'
<web1.example.com> PUT /tmp/tmpffkXRp TO /root/.ansible/tmp/ansible-tmp-1505759060.81-245677638709054/setup.py
<web1.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759060.81-245677638709054/ /root/.ansible/tmp/ansible-tmp-1505759060.81-245677638709054/setup.py && sleep 0'
<web2.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759060.8-152711064366180/setup.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759060.8-152711064366180/" > /dev/null 2>&1 && sleep 0'
<web1.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759060.81-245677638709054/setup.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759060.81-245677638709054/" > /dev/null 2>&1 && sleep 0'
ok: [web1.example.com]
ok: [web2.example.com]
META: ran handlers

TASK [garantiar que o Apache esteja na última versão] ********************************************************************************************************
task path: /home/vagrant/playbook.yml:8
Running dnf
Running dnf
Using module file /usr/lib/python2.7/site-packages/ansible/modules/packaging/os/dnf.py
<web2.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web2.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
Using module file /usr/lib/python2.7/site-packages/ansible/modules/packaging/os/dnf.py
<web1.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web1.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<web2.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759061.68-97065988608844 `" && echo ansible-tmp-1505759061.68-97065988608844="` echo /root/.ansible/tmp/ansible-tmp-1505759061.68-97065988608844 `" ) && sleep 0'
<web1.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759061.69-112968493935213 `" && echo ansible-tmp-1505759061.69-112968493935213="` echo /root/.ansible/tmp/ansible-tmp-1505759061.69-112968493935213 `" ) && sleep 0'
<web1.example.com> PUT /tmp/tmp6j5O7C TO /root/.ansible/tmp/ansible-tmp-1505759061.69-112968493935213/dnf.py
<web1.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759061.69-112968493935213/ /root/.ansible/tmp/ansible-tmp-1505759061.69-112968493935213/dnf.py && sleep 0'
<web2.example.com> PUT /tmp/tmpt7DaRm TO /root/.ansible/tmp/ansible-tmp-1505759061.68-97065988608844/dnf.py
<web2.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759061.68-97065988608844/ /root/.ansible/tmp/ansible-tmp-1505759061.68-97065988608844/dnf.py && sleep 0'
<web2.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759061.68-97065988608844/dnf.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759061.68-97065988608844/" > /dev/null 2>&1 && sleep 0'
<web1.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759061.69-112968493935213/dnf.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759061.69-112968493935213/" > /dev/null 2>&1 && sleep 0'
ok: [web1.example.com] => {
    "changed": false,
    "invocation": {
        "module_args": {
            "conf_file": null,
            "disable_gpg_check": false,
            "disablerepo": [],
            "enablerepo": [],
            "installroot": "/",
            "list": null,
            "name": [
                "httpd"
            ],
            "state": "latest"
        }
    },
    "msg": "Nothing to do"
}
ok: [web2.example.com] => {
    "changed": false,
    "invocation": {
        "module_args": {
            "conf_file": null,
            "disable_gpg_check": false,
            "disablerepo": [],
            "enablerepo": [],
            "installroot": "/",
            "list": null,
            "name": [
                "httpd"
            ],
            "state": "latest"
        }
    },
    "msg": "Nothing to do"
}

TASK [conter a linha '127.0.0.1 teste' no arquivo /etc/hosts] ************************************************************************************************
task path: /home/vagrant/playbook.yml:11
Using module file /usr/lib/python2.7/site-packages/ansible/modules/files/lineinfile.py
<web2.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web2.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
Using module file /usr/lib/python2.7/site-packages/ansible/modules/files/lineinfile.py
<web1.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<web1.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<web2.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759065.55-162492297075360 `" && echo ansible-tmp-1505759065.55-162492297075360="` echo /root/.ansible/tmp/ansible-tmp-1505759065.55-162492297075360 `" ) && sleep 0'
<web1.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759065.55-181080519971102 `" && echo ansible-tmp-1505759065.55-181080519971102="` echo /root/.ansible/tmp/ansible-tmp-1505759065.55-181080519971102 `" ) && sleep 0'
<web1.example.com> PUT /tmp/tmp4voCMr TO /root/.ansible/tmp/ansible-tmp-1505759065.55-181080519971102/lineinfile.py
<web1.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759065.55-181080519971102/ /root/.ansible/tmp/ansible-tmp-1505759065.55-181080519971102/lineinfile.py && sleep 0'
<web2.example.com> PUT /tmp/tmpCqHjcI TO /root/.ansible/tmp/ansible-tmp-1505759065.55-162492297075360/lineinfile.py
<web2.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759065.55-162492297075360/ /root/.ansible/tmp/ansible-tmp-1505759065.55-162492297075360/lineinfile.py && sleep 0'
<web1.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759065.55-181080519971102/lineinfile.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759065.55-181080519971102/" > /dev/null 2>&1 && sleep 0'
<web2.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759065.55-162492297075360/lineinfile.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759065.55-162492297075360/" > /dev/null 2>&1 && sleep 0'
ok: [web1.example.com] => {
    "backup": "",
    "changed": false,
    "diff": [
        {
            "after": "",
            "after_header": "/etc/hosts (content)",
            "before": "",
            "before_header": "/etc/hosts (content)"
        },
        {
            "after_header": "/etc/hosts (file attributes)",
            "before_header": "/etc/hosts (file attributes)"
        }
    ],
    "invocation": {
        "module_args": {
            "attributes": null,
            "backrefs": false,
            "backup": false,
            "content": null,
            "create": false,
            "delimiter": null,
            "directory_mode": null,
            "follow": false,
            "force": null,
            "group": null,
            "insertafter": null,
            "insertbefore": null,
            "line": "127.0.0.1 teste",
            "mode": null,
            "owner": null,
            "path": "/etc/hosts",
            "regexp": null,
            "remote_src": null,
            "selevel": null,
            "serole": null,
            "setype": null,
            "seuser": null,
            "src": null,
            "state": "present",
            "unsafe_writes": null,
            "validate": null
        }
    },
    "msg": ""
}
ok: [web2.example.com] => {
    "backup": "",
    "changed": false,
    "diff": [
        {
            "after": "",
            "after_header": "/etc/hosts (content)",
            "before": "",
            "before_header": "/etc/hosts (content)"
        },
        {
            "after_header": "/etc/hosts (file attributes)",
            "before_header": "/etc/hosts (file attributes)"
        }
    ],
    "invocation": {
        "module_args": {
            "attributes": null,
            "backrefs": false,
            "backup": false,
            "content": null,
            "create": false,
            "delimiter": null,
            "directory_mode": null,
            "follow": false,
            "force": null,
            "group": null,
            "insertafter": null,
            "insertbefore": null,
            "line": "127.0.0.1 teste",
            "mode": null,
            "owner": null,
            "path": "/etc/hosts",
            "regexp": null,
            "remote_src": null,
            "selevel": null,
            "serole": null,
            "setype": null,
            "seuser": null,
            "src": null,
            "state": "present",
            "unsafe_writes": null,
            "validate": null
        }
    },
    "msg": ""
}
META: ran handlers
META: ran handlers

PLAY [2 - Criando o servidor de banco] ***********************************************************************************************************************

TASK [Gathering Facts] ***************************************************************************************************************************************
Using module file /usr/lib/python2.7/site-packages/ansible/modules/system/setup.py
<db.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<db.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<db.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759065.97-109285672908873 `" && echo ansible-tmp-1505759065.97-109285672908873="` echo /root/.ansible/tmp/ansible-tmp-1505759065.97-109285672908873 `" ) && sleep 0'
<db.example.com> PUT /tmp/tmps2iGBs TO /root/.ansible/tmp/ansible-tmp-1505759065.97-109285672908873/setup.py
<db.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759065.97-109285672908873/ /root/.ansible/tmp/ansible-tmp-1505759065.97-109285672908873/setup.py && sleep 0'
<db.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759065.97-109285672908873/setup.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759065.97-109285672908873/" > /dev/null 2>&1 && sleep 0'
ok: [db.example.com]
META: ran handlers

TASK [garantir que o mysqld (MariaDB) está na última versão] *************************************************************************************************
task path: /home/vagrant/playbook.yml:19
Running dnf
Using module file /usr/lib/python2.7/site-packages/ansible/modules/packaging/os/dnf.py
<db.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<db.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<db.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759066.31-218005801299914 `" && echo ansible-tmp-1505759066.31-218005801299914="` echo /root/.ansible/tmp/ansible-tmp-1505759066.31-218005801299914 `" ) && sleep 0'
<db.example.com> PUT /tmp/tmpfj3ysn TO /root/.ansible/tmp/ansible-tmp-1505759066.31-218005801299914/dnf.py
<db.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759066.31-218005801299914/ /root/.ansible/tmp/ansible-tmp-1505759066.31-218005801299914/dnf.py && sleep 0'
<db.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759066.31-218005801299914/dnf.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759066.31-218005801299914/" > /dev/null 2>&1 && sleep 0'
ok: [db.example.com] => {
    "changed": false,
    "invocation": {
        "module_args": {
            "conf_file": null,
            "disable_gpg_check": false,
            "disablerepo": [],
            "enablerepo": [],
            "installroot": "/",
            "list": null,
            "name": [
                "mariadb-server"
            ],
            "state": "latest"
        }
    },
    "msg": "Nothing to do"
}

TASK [garantir que o  mysqld (MariaDB) está executando (e habilitá-lo no boot)] ******************************************************************************
task path: /home/vagrant/playbook.yml:22
Running systemd
Using module file /usr/lib/python2.7/site-packages/ansible/modules/system/systemd.py
<db.example.com> ESTABLISH LOCAL CONNECTION FOR USER: root
<db.example.com> EXEC /bin/sh -c 'echo ~ && sleep 0'
<db.example.com> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1505759067.92-281167143879273 `" && echo ansible-tmp-1505759067.92-281167143879273="` echo /root/.ansible/tmp/ansible-tmp-1505759067.92-281167143879273 `" ) && sleep 0'
<db.example.com> PUT /tmp/tmpu4HcSx TO /root/.ansible/tmp/ansible-tmp-1505759067.92-281167143879273/systemd.py
<db.example.com> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1505759067.92-281167143879273/ /root/.ansible/tmp/ansible-tmp-1505759067.92-281167143879273/systemd.py && sleep 0'
<db.example.com> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1505759067.92-281167143879273/systemd.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1505759067.92-281167143879273/" > /dev/null 2>&1 && sleep 0'
ok: [db.example.com] => {
    "changed": false,
    "enabled": true,
    "invocation": {
        "module_args": {
            "daemon_reload": false,
            "enabled": true,
            "masked": null,
            "name": "mariadb",
            "no_block": false,
            "state": "started",
            "user": false
        }
    },
    "name": "mariadb",
    "state": "started",
    "status": {
        "ActiveEnterTimestamp": "Mon 2017-09-18 16:15:55 UTC",
        "ActiveEnterTimestampMonotonic": "598708833",
        "ActiveExitTimestampMonotonic": "0",
        "ActiveState": "active",
        "After": "sysinit.target network.target system.slice basic.target -.mount systemd-journald.socket",
        "AllowIsolate": "no",
        "AmbientCapabilities": "0",
        "AssertResult": "yes",
        "AssertTimestamp": "Mon 2017-09-18 16:15:43 UTC",
        "AssertTimestampMonotonic": "587492647",
        "Before": "shutdown.target multi-user.target",
        "BlockIOAccounting": "no",
        "BlockIOWeight": "18446744073709551615",
        "CPUAccounting": "no",
        "CPUQuotaPerSecUSec": "infinity",
        "CPUSchedulingPolicy": "0",
        "CPUSchedulingPriority": "0",
        "CPUSchedulingResetOnFork": "no",
        "CPUShares": "18446744073709551615",
        "CPUUsageNSec": "18446744073709551615",
        "CanIsolate": "no",
        "CanReload": "no",
        "CanStart": "yes",
        "CanStop": "yes",
        "CapabilityBoundingSet": "18446744073709551615",
        "ConditionResult": "yes",
        "ConditionTimestamp": "Mon 2017-09-18 16:15:43 UTC",
        "ConditionTimestampMonotonic": "587492647",
        "Conflicts": "shutdown.target",
        "ControlGroup": "/system.slice/mariadb.service",
        "ControlPID": "0",
        "DefaultDependencies": "yes",
        "Delegate": "no",
        "Description": "MariaDB 10.1 database server",
        "DevicePolicy": "auto",
        "ExecMainCode": "0",
        "ExecMainExitTimestampMonotonic": "0",
        "ExecMainPID": "10637",
        "ExecMainStartTimestamp": "Mon 2017-09-18 16:15:54 UTC",
        "ExecMainStartTimestampMonotonic": "598269557",
        "ExecMainStatus": "0",
        "ExecStart": "{ path=/usr/libexec/mysqld ; argv[]=/usr/libexec/mysqld --basedir=/usr $MYSQLD_OPTS $_WSREP_NEW_CLUSTER ; ignore_errors=no ; start_time=[Mon 2017-09-18 16:15:54 UTC] ; stop_time=[n/a] ; pid=10637 ; code=(null) ; status=0/0 }",
        "ExecStartPost": "{ path=/usr/libexec/mysql-check-upgrade ; argv[]=/usr/libexec/mysql-check-upgrade ; ignore_errors=no ; start_time=[Mon 2017-09-18 16:15:54 UTC] ; stop_time=[Mon 2017-09-18 16:15:55 UTC] ; pid=10667 ; code=exited ; status=0 }",
        "ExecStartPre": "{ path=/usr/libexec/mysql-prepare-db-dir ; argv[]=/usr/libexec/mysql-prepare-db-dir %n ; ignore_errors=no ; start_time=[Mon 2017-09-18 16:15:43 UTC] ; stop_time=[Mon 2017-09-18 16:15:54 UTC] ; pid=10477 ; code=exited ; status=0 }",
        "ExecStopPost": "{ path=/usr/libexec/mysql-wait-stop ; argv[]=/usr/libexec/mysql-wait-stop ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }",
        "FailureAction": "none",
        "FileDescriptorStoreMax": "0",
        "FragmentPath": "/usr/lib/systemd/system/mariadb.service",
        "Group": "mysql",
        "GuessMainPID": "yes",
        "IOScheduling": "0",
        "Id": "mariadb.service",
        "IgnoreOnIsolate": "no",
        "IgnoreSIGPIPE": "yes",
        "InactiveEnterTimestampMonotonic": "0",
        "InactiveExitTimestamp": "Mon 2017-09-18 16:15:43 UTC",
        "InactiveExitTimestampMonotonic": "587493777",
        "JobTimeoutAction": "none",
        "JobTimeoutUSec": "infinity",
        "KillMode": "process",
        "KillSignal": "15",
        "LimitAS": "18446744073709551615",
        "LimitASSoft": "18446744073709551615",
        "LimitCORE": "18446744073709551615",
        "LimitCORESoft": "18446744073709551615",
        "LimitCPU": "18446744073709551615",
        "LimitCPUSoft": "18446744073709551615",
        "LimitDATA": "18446744073709551615",
        "LimitDATASoft": "18446744073709551615",
        "LimitFSIZE": "18446744073709551615",
        "LimitFSIZESoft": "18446744073709551615",
        "LimitLOCKS": "18446744073709551615",
        "LimitLOCKSSoft": "18446744073709551615",
        "LimitMEMLOCK": "65536",
        "LimitMEMLOCKSoft": "65536",
        "LimitMSGQUEUE": "819200",
        "LimitMSGQUEUESoft": "819200",
        "LimitNICE": "0",
        "LimitNICESoft": "0",
        "LimitNOFILE": "4096",
        "LimitNOFILESoft": "1024",
        "LimitNPROC": "1880",
        "LimitNPROCSoft": "1880",
        "LimitRSS": "18446744073709551615",
        "LimitRSSSoft": "18446744073709551615",
        "LimitRTPRIO": "0",
        "LimitRTPRIOSoft": "0",
        "LimitRTTIME": "18446744073709551615",
        "LimitRTTIMESoft": "18446744073709551615",
        "LimitSIGPENDING": "1880",
        "LimitSIGPENDINGSoft": "1880",
        "LimitSTACK": "18446744073709551615",
        "LimitSTACKSoft": "8388608",
        "LoadState": "loaded",
        "MainPID": "10637",
        "MemoryAccounting": "no",
        "MemoryCurrent": "18446744073709551615",
        "MemoryLimit": "18446744073709551615",
        "MountFlags": "0",
        "NFileDescriptorStore": "0",
        "Names": "mariadb.service",
        "NeedDaemonReload": "no",
        "Nice": "0",
        "NoNewPrivileges": "no",
        "NonBlocking": "no",
        "NotifyAccess": "main",
        "OOMScoreAdjust": "0",
        "OnFailureJobMode": "replace",
        "PermissionsStartOnly": "no",
        "PrivateDevices": "no",
        "PrivateNetwork": "no",
        "PrivateTmp": "yes",
        "ProtectHome": "no",
        "ProtectSystem": "no",
        "RefuseManualStart": "no",
        "RefuseManualStop": "no",
        "RemainAfterExit": "no",
        "Requires": "sysinit.target -.mount system.slice",
        "RequiresMountsFor": "/tmp /var/tmp",
        "Restart": "on-abort",
        "RestartUSec": "5s",
        "Result": "success",
        "RootDirectoryStartOnly": "no",
        "RuntimeDirectoryMode": "0755",
        "RuntimeMaxUSec": "infinity",
        "SameProcessGroup": "no",
        "SecureBits": "0",
        "SendSIGHUP": "no",
        "SendSIGKILL": "no",
        "Slice": "system.slice",
        "StandardError": "inherit",
        "StandardInput": "null",
        "StandardOutput": "journal",
        "StartLimitAction": "none",
        "StartLimitBurst": "5",
        "StartLimitInterval": "10000000",
        "StartupBlockIOWeight": "18446744073709551615",
        "StartupCPUShares": "18446744073709551615",
        "StateChangeTimestamp": "Mon 2017-09-18 16:15:55 UTC",
        "StateChangeTimestampMonotonic": "598708833",
        "StatusErrno": "0",
        "StatusText": "Taking your SQL requests now...",
        "StopWhenUnneeded": "no",
        "SubState": "running",
        "SyslogFacility": "3",
        "SyslogLevel": "6",
        "SyslogLevelPrefix": "yes",
        "SyslogPriority": "30",
        "SystemCallErrorNumber": "0",
        "TTYReset": "no",
        "TTYVHangup": "no",
        "TTYVTDisallocate": "no",
        "TasksAccounting": "yes",
        "TasksCurrent": "26",
        "TasksMax": "512",
        "TimeoutStartUSec": "5min",
        "TimeoutStopUSec": "5min",
        "TimerSlackNSec": "50000",
        "Transient": "no",
        "Type": "notify",
        "UMask": "0007",
        "UnitFilePreset": "disabled",
        "UnitFileState": "enabled",
        "User": "mysql",
        "UtmpMode": "init",
        "WantedBy": "multi-user.target",
        "WatchdogTimestamp": "Mon 2017-09-18 16:15:54 UTC",
        "WatchdogTimestampMonotonic": "598648636",
        "WatchdogUSec": "0"
    }
}
META: ran handlers
META: ran handlers

PLAY RECAP ***************************************************************************************************************************************************
db.example.com             : ok=3    changed=0    unreachable=0    failed=0
web1.example.com           : ok=3    changed=0    unreachable=0    failed=0
web2.example.com           : ok=3    changed=0    unreachable=0    failed=0

Passo 7 - Dicas e truques

1) Criar relação de confiança Hosts Linux

Gerar uma chave de conexão

Copiar o ID para o Hosts alvo

2) Outras opções de conexão com os Hosts Alvo

Solicitando a senha do usuário pelo prompt --ask-pass

Solicitando senha para escalar privilégios pelo prompt --ask-become-pass

3) Listagem de Hosts e Tasks das Playbooks

Listando todos os Hosts das Playbooks: --list-hosts

Listando todas as TASKS das Playbooks: --list-tasks

4) Checagem de sintaxe

Checando a sintaxe YAML: --syntax-check

5) Saltos

Confirmando a execução das TASKs: --step

Iniciando a Playbook a partir de uma TASK: --start-at-task

Limitando a execução da playbook: --limit

6) Depurando (Debug)

Executando a playbook em Debug modo 1: -v

Executando a playbook em Debug modo 2: -vv

Executando a playbook em Debug modo 3: -vvv

Executando a playbook em Debug de conexão: -vvvv

Solicitando a senha do usuário pelo prompt `--ask-pass`

Solicitando senha para escalar privilégios pelo prompt `--ask-become-pass`

Listando todos os Hosts das Playbooks: `--list-hosts`

Listando todas as TASKS das Playbooks: `--list-tasks`

Checando a sintaxe YAML: `--syntax-check`

Confirmando a execução das TASKs: `--step`

Iniciando a Playbook a partir de uma TASK: `--start-at-task`

Limitando a execução da playbook: `--limit`

Executando a playbook em Debug modo 1: `-v`

Executando a playbook em Debug modo 2: `-vv`

Executando a playbook em Debug modo 3: `-vvv`

Executando a playbook em Debug de conexão: `-vvvv`