Dieser Artikel zeigt, wie man die Installation von Kubernetes 1.13 auf Raspberry Pi mit Ansible automatisiert, mithilfe einer selbst erstellten Rolle.
Voraussetzungen
- Raspbian muss auf den Ziel-Raspberry Pi(s) installiert sein (mindestens 2). Die Anleitung ist in einem früheren Beitrag verfügbar: Automatisierte Initialisierung und Absicherung von Raspbian auf Raspberry Pi
Installation von Docker und Kubernetes
Rolle herunterladen
Ich habe eine Ansible-Rolle für diese Automatisierung entwickelt; so können Sie sie herunterladen :
## Pré-requis Docker (rôle fait maison)
git clone https://gitlab.com/jls42/ansible-rpi-docker.git roles/ansible-rpi-docker
## Rôle pour l'installation de Kubernetes
git clone https://gitlab.com/jls42/ansible-rpi-k8s.git roles/ansible-rpi-k8sFür weitere Details siehe die Dokumentation zu ansible-rpi-k8s
Erstellen der Inventardatei namens inventory
In diesem Inventarbeispiel sind mehrere Raspberry Pi aufgeführt; einer hat die IP 192.168.1.190 und der andere die IP 192.168.1.191
In der Untergruppe (hier rpi-k8s) muss der Master als Erstes deklariert werden
[rpi1]
192.168.1.190 k8s_master=true
[rpi2]
192.168.1.191
[rpi-k8s:children]
rpi1
rpi2Vorbereitung des Playbooks k8s-rpi.yml
---
- name: "Installation de Docker sur le Raspberry Pi"
hosts: rpi-k8s
remote_user: "pi"
roles:
- roles/ansible-rpi-docker
vars:
docker_version: 18.06.1~ce~3-0~raspbian
- name: "Installation de k8s sur le Raspberry Pi"
hosts: rpi-k8s
remote_user: "pi"
roles:
- roles/ansible-rpi-k8s
vars:
k8s_version: "1.13.0-00"
k8s_master_token: "abcdef.0123456789abcdef"
k8s_cluster_group: rpi-k8sBereitstellung von Docker und Kubernetes
Die Rollen ansible-rpi-docker und ansible-rpi-k8s werden nacheinander ausgeführt.
Falls Docker bereits installiert ist, ist es möglich, nur ansible-rpi-k8s auszuführen.
export ANSIBLE_HOST_KEY_CHECKING=False
ansible-playbook -b -i inventory k8s-rpi.ymlDas ergibt:
jls42@boo:~/rpi$ ansible-playbook -b -i inventory k8s-rpi.yml
PLAY [Installation de Docker sur le Raspberry Pi] ******************************************************************************************************************************************************************************************
TASK [Gathering Facts] *********************************************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:26:30 +0100 (0:00:00.051) 0:00:00.051 *******
ok: [192.168.1.190]
ok: [192.168.1.191]
TASK [roles/ansible-rpi-docker : Installe les paquets nécessaire à l'utilisation d'un dépôt HTTPS] *****************************************************************************************************************************************
Sunday 09 December 2018 03:26:33 +0100 (0:00:03.476) 0:00:03.527 *******
changed: [192.168.1.190] => (item=[u'apt-transport-https', u'ca-certificates', u'curl', u'gnupg2', u'software-properties-common'])
changed: [192.168.1.191] => (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 03:27:12 +0100 (0:00:39.274) 0:00:42.802 *******
changed: [192.168.1.190]
changed: [192.168.1.191]
TASK [roles/ansible-rpi-docker : Ajoute le dépôt Docker] ***********************************************************************************************************************************************************************************
Sunday 09 December 2018 03:27:17 +0100 (0:00:04.747) 0:00:47.549 *******
changed: [192.168.1.190]
changed: [192.168.1.191]
TASK [roles/ansible-rpi-docker : Installe le paquet docker-ce] *****************************************************************************************************************************************************************************
Sunday 09 December 2018 03:27:27 +0100 (0:00:10.238) 0:00:57.788 *******
changed: [192.168.1.190]
changed: [192.168.1.191]
TASK [roles/ansible-rpi-docker : Installe python-pip] **************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:29:04 +0100 (0:01:36.285) 0:02:34.074 *******
changed: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-docker : Installe docker-compose via pip] **************************************************************************************************************************************************************************
Sunday 09 December 2018 03:30:06 +0100 (0:01:02.641) 0:03:36.715 *******
changed: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-docker : Configure Docker pour qu'il démarre au boot] **************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:03 +0100 (0:00:56.384) 0:04:33.099 *******
ok: [192.168.1.190]
ok: [192.168.1.191]
TASK [roles/ansible-rpi-docker : Ajoute l'utilisateur pi dans le groupe docker] ************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:04 +0100 (0:00:01.075) 0:04:34.175 *******
changed: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-docker : Supprime la swap] *****************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:05 +0100 (0:00:01.348) 0:04:35.523 *******
changed: [192.168.1.190]
changed: [192.168.1.191]PLAY [Installation de k8s sur le Raspberry Pi] *********************************************************************************************************************************************************************************************
TASK [Gathering Facts] *********************************************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:07 +0100 (0:00:02.096) 0:04:37.620 *******
ok: [192.168.1.190]
ok: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Installe les paquets nécessaires à l'utilisation d'un dépôt HTTPS] *******************************************************************************************************************************************
Sunday 09 December 2018 03:31:09 +0100 (0:00:01.934) 0:04:39.555 *******
ok: [192.168.1.190] => (item=[u'apt-transport-https', u'ca-certificates', u'curl', u'gnupg2', u'software-properties-common'])
ok: [192.168.1.191] => (item=[u'apt-transport-https', u'ca-certificates', u'curl', u'gnupg2', u'software-properties-common'])
TASK [roles/ansible-rpi-k8s : Supprime la swap] ********************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:15 +0100 (0:00:05.740) 0:04:45.295 *******
ok: [192.168.1.190]
ok: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Active cgroup_memory] ****************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:16 +0100 (0:00:00.966) 0:04:46.262 *******
changed: [192.168.1.190]
changed: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Redémarre] ***************************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:17 +0100 (0:00:01.032) 0:04:47.295 *******
changed: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Attente suite au redémarrage] ********************************************************************************************************************************************************************************
Sunday 09 December 2018 03:31:18 +0100 (0:00:01.667) 0:04:48.962 *******
ok: [192.168.1.190]
ok: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Ajoute la clef officielle Kubernetes] ************************************************************************************************************************************************************************
Sunday 09 December 2018 03:32:19 +0100 (0:01:00.447) 0:05:49.409 *******
changed: [192.168.1.190]
changed: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Ajoute le dépôt stable de Kubernetes] ************************************************************************************************************************************************************************
Sunday 09 December 2018 03:32:25 +0100 (0:00:06.282) 0:05:55.692 *******
changed: [192.168.1.190]
changed: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Installe kubeadm, kubelet and kubectl] ***********************************************************************************************************************************************************************
Sunday 09 December 2018 03:32:45 +0100 (0:00:20.277) 0:06:15.970 *******
changed: [192.168.1.190] => (item=[u'kubeadm=1.13.0-00', u'kubelet=1.13.0-00', u'kubectl=1.13.0-00'])
changed: [192.168.1.191] => (item=[u'kubeadm=1.13.0-00', u'kubelet=1.13.0-00', u'kubectl=1.13.0-00'])
TASK [roles/ansible-rpi-k8s : Configure kubelet pour qu'il démarre au boot] ****************************************************************************************************************************************************************
Sunday 09 December 2018 03:34:25 +0100 (0:01:39.895) 0:07:55.865 *******
ok: [192.168.1.191]
ok: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Installe les paquets nécessaires pour l'utilisation du client CIFS] ******************************************************************************************************************************************
Sunday 09 December 2018 03:34:26 +0100 (0:00:01.029) 0:07:56.894 *******
changed: [192.168.1.191] => (item=[u'cifs-utils', u'util-linux', u'coreutils', u'jq'])
changed: [192.168.1.190] => (item=[u'cifs-utils', u'util-linux', u'coreutils', u'jq'])
TASK [roles/ansible-rpi-k8s : Ajout le répertoire d'addons cifs] ***************************************************************************************************************************************************************************
Sunday 09 December 2018 03:34:40 +0100 (0:00:13.835) 0:08:10.730 *******
changed: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Télécharge le plugin CIFS] ***********************************************************************************************************************************************************************************
Sunday 09 December 2018 03:34:41 +0100 (0:00:01.051) 0:08:11.782 *******
changed: [192.168.1.191]
changed: [192.168.1.190]TASK [roles/ansible-rpi-k8s : Installe les paquets nécessaires à l'utilisation du client GlusterFS] *********************************************************************************************************************************************************
Sunday 09 December 2018 03:34:43 +0100 (0:00:01.740) 0:08:13.522 *******
changed: [192.168.1.190] => (item=[u'glusterfs-client'])
changed: [192.168.1.191] => (item=[u'glusterfs-client'])
TASK [roles/ansible-rpi-k8s : Définie l'ip du maître] **************************************************************************************************************************************************************************************
Sunday 09 December 2018 03:35:16 +0100 (0:00:32.640) 0:08:46.162 *******
ok: [192.168.1.190]
ok: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Vérifie si le master a déjà été configuré] *******************************************************************************************************************************************************************
Sunday 09 December 2018 03:35:16 +0100 (0:00:00.113) 0:08:46.276 *******
skipping: [192.168.1.191]
ok: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Définie l'initialisation du cluster à oui] *******************************************************************************************************************************************************************
Sunday 09 December 2018 03:35:17 +0100 (0:00:01.074) 0:08:47.350 *******
skipping: [192.168.1.191]
ok: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Définie l'initialisation du cluster à non] *******************************************************************************************************************************************************************
Sunday 09 December 2018 03:35:17 +0100 (0:00:00.113) 0:08:47.464 *******
skipping: [192.168.1.190]
skipping: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Définie l'initialisation du/des noeud(s)] ********************************************************************************************************************************************************************
Sunday 09 December 2018 03:35:17 +0100 (0:00:00.097) 0:08:47.562 *******
skipping: [192.168.1.190]
ok: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Initialise le cluster Kubernetes sur le maître] **************************************************************************************************************************************************************
Sunday 09 December 2018 03:35:17 +0100 (0:00:00.181) 0:08:47.743 *******
skipping: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Attend la fin de l'initialisation] ***************************************************************************************************************************************************************************
Sunday 09 December 2018 03:35:19 +0100 (0:00:01.598) 0:08:49.342 *******
skipping: [192.168.1.191]
FAILED - RETRYING: Attend la fin de l'initialisation (42 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (41 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (40 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (39 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (38 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (37 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (36 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (35 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (34 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (33 retries left).
FAILED - RETRYING: Attend la fin de l'initialisation (32 retries left).
changed: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Crée le répertoire kubernetes /home/pi/.kube/] ***************************************************************************************************************************************************************
Sunday 09 December 2018 03:41:02 +0100 (0:05:43.339) 0:14:32.682 *******
skipping: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Copie le fichier /etc/kubernetes/admin.conf vers /home/pi/.kube/config] **************************************************************************************************************************************
Sunday 09 December 2018 03:41:03 +0100 (0:00:00.948) 0:14:33.630 *******
skipping: [192.168.1.191]
changed: [192.168.1.190]
TASK [roles/ansible-rpi-k8s : Récupère la configuration kubernetes dans un répertoire local] ***********************************************************************************************************************************************
Sunday 09 December 2018 03:41:04 +0100 (0:00:01.030) 0:14:34.661 *******
skipping: [192.168.1.191]
changed: [192.168.1.190]TASK [roles/ansible-rpi-k8s : Jointure de(s) noeud(s) avec le maître] **********************************************************************************************************************************************************************
Sunday 09 December 2018 03:41:05 +0100 (0:00:01.016) 0:14:35.678 *******
skipping: [192.168.1.190]
changed: [192.168.1.191]
TASK [roles/ansible-rpi-k8s : Installation des pods réseaux avec Weave] ********************************************************************************************************************************************************************
Sunday 09 December 2018 03:41:12 +0100 (0:00:06.567) 0:14:42.245 *******
skipping: [192.168.1.191]
changed: [192.168.1.190]
PLAY RECAP *********************************************************************************************************************************************************************************************************************************
192.168.1.190 : ok=33 changed=23 unreachable=0 failed=0
192.168.1.191 : ok=27 changed=18 unreachable=0 failed=0
Sunday 09 December 2018 03:41:18 +0100 (0:00:05.893) 0:14:48.139 *******
===============================================================================
roles/ansible-rpi-k8s ------------------------------------------------- 608.58s
roles/ansible-rpi-docker ---------------------------------------------- 274.09s
setup ------------------------------------------------------------------- 5.41s
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
total ----------------------------------------------------------------- 888.09s
Playbook run took 0 days, 0 hours, 14 minutes, 48 secondsÜberprüfung
Man verbindet sich mit dem Raspberry Pi, um die korrekte Installation von Kubernetes zu bestätigen
(die Knoten sind nicht unbedingt sofort alle im Zustand “Ready”, das kann einige Minuten dauern)
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 02:41:12 2018 from 192.168.1.42
pi@rpi1:~ $ kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
rpi1 Ready master 2m3s v1.13.0 192.168.1.190 <none> Raspbian GNU/Linux 9 (stretch) 4.14.79-v7+ docker://18.6.1
rpi2 Ready <none> 85s v1.13.0 192.168.1.191 <none> Raspbian GNU/Linux 9 (stretch) 4.14.79-v7+ docker://18.6.1
pi@rpi1:~ $Da die k8s-Konfiguration lokal kopiert wurde, ist es auch möglich, kubectl auf dem lokalen Rechner auszuführen (sofern dieser installiert ist).
Viel Spaß!
Dieses Dokument wurde aus der französischen Version (fr) in die Sprache de mithilfe des Modells gpt-5-mini übersetzt. Für weitere Informationen zum Übersetzungsprozess siehe https://gitlab.com/jls42/ai-powered-markdown-translator