Questo articolo propone di automatizzare l’installazione di docker su Raspberry Pi via Ansible con un ruolo fatto in casa.

Prerequisiti

Installazione di Docker

Recupero del ruolo
Ho sviluppato un ruolo ansible per questa automazione, ecco come recuperarlo:

git clone https://gitlab.com/jls42/ansible-rpi-docker.git roles/ansible-rpi-docker

Per maggiori dettagli vedere la documentazione su ansible-rpi-docker

Creazione del file di inventario chiamato inventory
In questo esempio di inventario il Raspberry Pi ha l’ip 192.168.1.190

[rpi1]
192.168.1.190 servername=rpi1

Preparazione del playbook docker-rpi.yml

---
- name: "Installation de Docker sur le Raspberry Pi"
  hosts: rpi1
  remote_user: "pi"
  roles:
    - roles/ansible-rpi-docker
  vars:
    docker_version: 18.06.1~ce~3-0~raspbian

Deploy di Docker

export ANSIBLE_HOST_KEY_CHECKING=False
ansible-playbook -b -i inventory docker-rpi.yml

Che dà:

jls42@boo:~/rpi$ ansible-playbook -b -i inventory docker-rpi.yml

PLAY [Installation de Docker sur le Raspberry Pi] ******************************************************************************************************************************************************************************************

TASK [Gathering Facts] *********************************************************************************************************************************************************************************************************************
Sunday 09 December 2018  01:20:47 +0100 (0:00:00.050)       0:00:00.051 *******
ok: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Installe les paquets nécessaires à l'utilisation d'un dépôt HTTPS] *****************************************************************************************************************************************
Sunday 09 December 2018  01:20:50 +0100 (0:00:03.350)       0:00:03.401 *******
changed: [192.168.1.190] => (item=[u'apt-transport-https', u'ca-certificates', u'curl', u'gnupg2', u'software-properties-common'])

TASK [roles/ansible-rpi-docker : Ajoute la clef officielle du dépôt Docker] ****************************************************************************************************************************************************************
Sunday 09 December 2018  01:21:41 +0100 (0:00:51.274)       0:00:54.675 *******
changed: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Ajoute le dépôt Docker] ***********************************************************************************************************************************************************************************
Sunday 09 December 2018  01:21:46 +0100 (0:00:04.766)       0:00:59.442 *******
changed: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Installe le paquet docker-ce] *****************************************************************************************************************************************************************************
Sunday 09 December 2018  01:21:57 +0100 (0:00:10.451)       0:01:09.893 *******
changed: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Installe python-pip] **************************************************************************************************************************************************************************************
Sunday 09 December 2018  01:23:14 +0100 (0:01:17.283)       0:02:27.177 *******
changed: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Installe docker-compose via pip] **************************************************************************************************************************************************************************
Sunday 09 December 2018  01:24:02 +0100 (0:00:48.630)       0:03:15.807 *******
changed: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Configure Docker pour qu'il démarre au boot] **************************************************************************************************************************************************************
Sunday 09 December 2018  01:24:58 +0100 (0:00:55.582)       0:04:11.390 *******
ok: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Ajoute l'utilisateur pi dans le groupe docker] ************************************************************************************************************************************************************
Sunday 09 December 2018  01:24:59 +0100 (0:00:01.089)       0:04:12.480 *******
changed: [192.168.1.190]

TASK [roles/ansible-rpi-docker : Supprime la swap] *****************************************************************************************************************************************************************************************
Sunday 09 December 2018  01:25:00 +0100 (0:00:01.265)       0:04:13.745 *******
changed: [192.168.1.190]

PLAY RECAP *********************************************************************************************************************************************************************************************************************************
192.168.1.190              : ok=10   changed=8    unreachable=0    failed=0   

Sunday 09 December 2018  01:25:02 +0100 (0:00:02.002)       0:04:15.748 *******
===============================================================================
roles/ansible-rpi-docker ---------------------------------------------- 252.35s
setup ------------------------------------------------------------------- 3.35s
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
total ----------------------------------------------------------------- 255.70s
Playbook run took 0 days, 0 hours, 4 minutes, 15 seconds
jls42@boo:~/rpi$

Verifica

Ci si connette al Raspberry Pi per confermare la corretta installazione di Docker

jls42@boo:~/rpi$ ssh pi@192.168.1.190
Linux rpi1 4.14.79-v7+ #1159 SMP Sun Nov 4 17:50:20 GMT 2018 armv7l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sun Dec  9 00:25:01 2018 from 192.168.1.42
pi@rpi1:~ $ docker --version
Docker version 18.06.1-ce, build e68fc7a

Enjoy!

Questo documento è stato tradotto dalla versione fr alla lingua it utilizzando il modello gpt-4o. Per maggiori informazioni sul processo di traduzione, consultare https://gitlab.com/jls42/ai-powered-markdown-translator