Quand Buster pilote le porte conteneurs

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Quel titre bizarre pour un article technique ?

En fait non, je rappelle que Buster est le nom de la dernière version de Debian, la version 10. Buster fait référence au chien dans Toy Story.

Le porte conteneur actuel, c'est bien sûr la référence à Kubernetes.

Donc en résumé, cet article présente comment installer un cluster Kubernetes sous Debian 10.

[/fusion_text][/fusion_builder_column][fusion_builder_column type="1_3" layout="1_3" spacing="" center_content="no" link="" target="_self" min_height="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_image_id="" background_position="left top" background_repeat="no-repeat" hover_type="none" border_size="0" border_color="" border_style="solid" border_position="all" border_radius="" box_shadow="no" dimension_box_shadow="" box_shadow_blur="0" box_shadow_spread="0" box_shadow_color="" box_shadow_style="" padding_top="" padding_right="" padding_bottom="" padding_left="" margin_top="" margin_bottom="" animation_type="" animation_direction="left" animation_speed="0.3" animation_offset="" last="no"][fusion_imageframe image_id="18158|full" max_width="" style_type="" blur="" stylecolor="" hover_type="none" bordersize="" bordercolor="" borderradius="" align="right" lightbox="no" gallery_id="" lightbox_image="" lightbox_image_id="" alt="" link="" linktarget="_self" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" animation_type="" animation_direction="left" animation_speed="0.3" animation_offset=""]https://www.aukfood.fr/wp-content/uploads/2019/07/65c61ae8c37ef5264481a16fa6dc7103.jpg[/fusion_imageframe][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container hundred_percent="no" hundred_percent_height="no" hundred_percent_height_scroll="no" hundred_percent_height_center_content="yes" equal_height_columns="no" menu_anchor="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" status="published" publish_date="" class="" id="" background_color="" background_image="" background_position="center center" background_repeat="no-repeat" fade="no" background_parallax="none" enable_mobile="no" parallax_speed="0.3" video_mp4="" video_webm="" video_ogv="" video_url="" video_aspect_ratio="16:9" video_loop="yes" video_mute="yes" video_preview_image="" border_size="" border_color="" border_style="solid" margin_top="" margin_bottom="" padding_top="" padding_right="" padding_bottom="" padding_left="" admin_label="Préparation" admin_toggled="yes"][fusion_builder_row][fusion_builder_column type="1_1" layout="1_1" spacing="" center_content="no" link="" target="_self" min_height="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_image_id="" background_position="left top" background_repeat="no-repeat" hover_type="none" border_size="0" border_color="" border_style="solid" border_position="all" border_radius="" box_shadow="no" dimension_box_shadow="" box_shadow_blur="0" box_shadow_spread="0" box_shadow_color="" box_shadow_style="" padding_top="" padding_right="" padding_bottom="" padding_left="" margin_top="" margin_bottom="" animation_type="" animation_direction="left" animation_speed="0.3" animation_offset="" last="no"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="default" rule_size="" rule_color="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id=""]

La première version de se cluster va être composée par :

un manager
deux workers

Les machines dans mon POC sont des vms sur un Proxmox mais toutes vms ou serveur dédié faisant tourner une Debian Buster est valable. Je privilégie aussi un réseau local pour la communication entre les noeuds.

Préparation des vms

On va sur chaque vms :

configurer correctement le hostname des machines (fichiers hosts et hostname)
supprimer le swap : swapoff et suppression dans la fstab
installer docker
installer les outils pour kubernetes

Pour Docker

Pour kubernetes

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Mise en place du master

Sur la machine master initialisation du cluster.

Ne pas oublier de récupérer le token pour la suite.

Adaptez bien sur le réseau local (--apiserver-advertise-address=192.168.72.101) et le réseau pour les pods (--pod-network-cidr=10.244.0.0/16).

Mettre en place le SNI

Pour ce cas là j'ai mis du Flannel, mais on pourrait mettre du Calico de la même façon.

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Mise en place des workers

Reste plus qu'à mettre en place les workers. A faire sur chaque machine.

Vérifications

Sur le master, vérifier, après quelques minutes, que les noeuds sont bien intégrés au cluster.[/fusion_text][fusion_syntax_highlighter theme="" language="x-sh" line_numbers="" line_wrapping="" copy_to_clipboard="" copy_to_clipboard_text="Copy to Clipboard" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" font_size="" border_size="" border_color="" border_style="" background_color="" line_number_background_color="" line_number_text_color="" margin_top="" margin_left="" margin_bottom="" margin_right=""]a3ViZWN0bCBnZXQgbm9kZXMKTkFNRSAgICAgICBTVEFUVVMgICBST0xFUyAgICBBR0UgICAgIFZFUlNJT04KYXVrdWJlMCAgICBSZWFkeSAgICBtYXN0ZXIgICAxMW0gICAgIHYxLjE1LjEKYXVrdWJlMDEgICBSZWFkeSAgICA8bm9uZT4gICAybTUzcyAgIHYxLjE1LjEKYXVrdWJlMDIgICBSZWFkeSAgICA8bm9uZT4gICA5MHMgICAgIHYxLjE1LjE=[/fusion_syntax_highlighter][fusion_section_separator divider_type="curved" divider_position="left" divider_candy="top" icon="" icon_color="" bordersize="" bordercolor="" backgroundcolor="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" /][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container hundred_percent="no" hundred_percent_height="no" hundred_percent_height_scroll="no" hundred_percent_height_center_content="yes" equal_height_columns="no" menu_anchor="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" status="published" publish_date="" class="" id="" background_color="" background_image="" background_position="center center" background_repeat="no-repeat" fade="no" background_parallax="none" enable_mobile="no" parallax_speed="0.3" video_mp4="" video_webm="" video_ogv="" video_url="" video_aspect_ratio="16:9" video_loop="yes" video_mute="yes" video_preview_image="" border_size="" border_color="" border_style="solid" margin_top="" margin_bottom="" padding_top="" padding_right="" padding_bottom="" padding_left="" admin_label="Conclusion"][fusion_builder_row][fusion_builder_column type="1_1" layout="1_1" spacing="" center_content="no" link="" target="_self" min_height="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_image_id="" background_position="left top" background_repeat="no-repeat" hover_type="none" border_size="0" border_color="" border_style="solid" border_position="all" border_radius="" box_shadow="no" dimension_box_shadow="" box_shadow_blur="0" box_shadow_spread="0" box_shadow_color="" box_shadow_style="" padding_top="" padding_right="" padding_bottom="" padding_left="" margin_top="" margin_bottom="" animation_type="" animation_direction="left" animation_speed="0.3" animation_offset="" last="no"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="default" rule_size="" rule_color="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id=""]

Cluster en fonction

Le cluster fonction, plus qu'à déployer des pods, deployment, services, namespaces, etc ...

Par la suite j’intégrerais ce cluster dans Rancher et petit défi supplémentaire, j’intégrerais un nœud Windows 😉

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