{"id":2047,"date":"2026-03-07T22:38:38","date_gmt":"2026-03-07T21:38:38","guid":{"rendered":"https:\/\/askem.eu\/?p=2047"},"modified":"2026-03-07T22:38:40","modified_gmt":"2026-03-07T21:38:40","slug":"deployer-apache-superset-pour-visualiser-les-donnees-dun-portail-ckan","status":"publish","type":"post","link":"https:\/\/askem.eu\/en\/2026\/03\/07\/deployer-apache-superset-pour-visualiser-les-donnees-dun-portail-ckan\/","title":{"rendered":"D\u00e9ployer Apache Superset pour visualiser les donn\u00e9es d&rsquo;un portail CKAN"},"content":{"rendered":"<h2 class=\"wp-block-heading\">D\u00e9ployer Apache Superset pour visualiser les donn\u00e9es d&rsquo;un portail CKAN<\/h2>\n\n\n\n<p>Apache Superset s&rsquo;impose comme l&rsquo;outil open source de r\u00e9f\u00e9rence pour l&rsquo;exploration et la visualisation de donn\u00e9es. Coupl\u00e9 \u00e0 un portail CKAN, il permet de transformer des jeux de donn\u00e9es bruts en tableaux de bord interactifs accessibles aux d\u00e9cideurs comme aux citoyens. Cet article d\u00e9taille la mise en place d&rsquo;une cha\u00eene compl\u00e8te&nbsp;: de l&rsquo;ingestion CKAN vers une base analytique, jusqu&rsquo;aux dashboards Superset expos\u00e9s en iframe sur un site public.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pourquoi Superset plut\u00f4t qu&rsquo;une autre solution&nbsp;?<\/h3>\n\n\n\n<p>Dans l&rsquo;\u00e9cosyst\u00e8me open data, les portails CKAN offrent un excellent catalogage mais des capacit\u00e9s de visualisation limit\u00e9es. Superset comble ce manque en proposant plus de 40 types de graphiques natifs, un moteur SQL int\u00e9gr\u00e9, et une gestion fine des r\u00f4les et permissions \u2014 le tout sans licence commerciale. Compar\u00e9 \u00e0 Metabase ou Grafana, Superset se distingue par sa capacit\u00e9 \u00e0 g\u00e9rer des volumes importants via des connecteurs optimis\u00e9s (Trino, ClickHouse, DuckDB) et par son int\u00e9gration naturelle dans une stack Python.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Architecture de r\u00e9f\u00e9rence<\/h3>\n\n\n\n<p>L&rsquo;architecture propos\u00e9e repose sur trois couches distinctes. La premi\u00e8re est la couche d&rsquo;ingestion&nbsp;: un script Python ou un job Airflow extrait p\u00e9riodiquement les ressources CKAN via l&rsquo;API <code>package_show<\/code> et les charge dans une base analytique PostgreSQL ou DuckDB. La deuxi\u00e8me couche est le moteur Superset lui-m\u00eame, d\u00e9ploy\u00e9 en conteneur Docker avec Redis pour le cache et Celery pour les requ\u00eates asynchrones. La troisi\u00e8me couche est la diffusion&nbsp;: les dashboards sont embarqu\u00e9s via iframe dans le site public WordPress ou Drupal gr\u00e2ce au mode  \u00ab&nbsp;embedded&nbsp;\u00bb de Superset, avec un token JWT pour le contr\u00f4le d&rsquo;acc\u00e8s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D\u00e9ploiement Docker pas \u00e0 pas<\/h3>\n\n\n\n<p>Le d\u00e9ploiement se fait via <code>docker-compose<\/code> avec quatre services&nbsp;: <code>superset-web<\/code>, <code>superset-worker<\/code>, <code>superset-beat<\/code> et <code>redis<\/code>. Le fichier <code>superset_config.py<\/code> est mont\u00e9 en volume pour configurer la connexion \u00e0 la base m\u00e9tadonn\u00e9es, les param\u00e8tres de s\u00e9curit\u00e9 (SECRET_KEY, CSRF, headers CORS pour l&#8217;embed), et les feature flags comme <code>EMBEDDED_SUPERSET<\/code>. L&rsquo;initialisation se fait avec <code>superset db upgrade<\/code> puis <code>superset init<\/code> pour cr\u00e9er les r\u00f4les par d\u00e9faut.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Connecter CKAN \u00e0 Superset<\/h3>\n\n\n\n<p>Deux approches sont possibles pour alimenter Superset depuis CKAN. La premi\u00e8re, directe, consiste \u00e0 pointer Superset vers le DataStore CKAN via son extension PostgreSQL \u2014 simple mais limit\u00e9e aux donn\u00e9es tabulaires d\u00e9j\u00e0 charg\u00e9es dans le DataStore. La seconde, recommand\u00e9e pour la production, passe par un pipeline ETL l\u00e9ger&nbsp;: un DAG Airflow ou un cron Python interroge l&rsquo;API CKAN, nettoie et normalise les donn\u00e9es, puis les ins\u00e8re dans une base analytique d\u00e9di\u00e9e. Cette s\u00e9paration garantit la stabilit\u00e9 du portail CKAN tout en offrant des performances de requ\u00eatage optimales dans Superset.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u00e9curit\u00e9 et contr\u00f4le d&rsquo;acc\u00e8s<\/h3>\n\n\n\n<p>Superset int\u00e8gre un syst\u00e8me RBAC complet. Pour un usage open data, on cr\u00e9e typiquement un r\u00f4le  \u00ab&nbsp;Public Viewer&nbsp;\u00bb avec acc\u00e8s en lecture seule aux dashboards publi\u00e9s. L&rsquo;int\u00e9gration Keycloak est possible via le provider Flask-OIDC, ce qui permet un SSO unifi\u00e9 entre CKAN, Superset et les autres briques du SI. Les dashboards embarqu\u00e9s utilisent un guest token avec une dur\u00e9e de vie courte, g\u00e9n\u00e9r\u00e9 c\u00f4t\u00e9 serveur pour \u00e9viter toute fuite de credentials.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bonnes pratiques pour des dashboards open data<\/h3>\n\n\n\n<p>Un dashboard destin\u00e9 au grand public doit respecter quelques principes. Limiter le nombre de graphiques \u00e0 cinq ou six par vue pour \u00e9viter la surcharge cognitive. Privil\u00e9gier les types de visualisation simples (barres, lignes, cartes choropl\u00e8thes) plut\u00f4t que les graphiques exotiques. Ajouter syst\u00e9matiquement un filtre temporel et un filtre g\u00e9ographique. Documenter chaque indicateur avec une infobulle explicative. Enfin, activer le cache Superset avec un TTL adapt\u00e9 \u00e0 la fr\u00e9quence de mise \u00e0 jour des donn\u00e9es sources \u2014 typiquement 24 heures pour des donn\u00e9es ouvertes mises \u00e0 jour quotidiennement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Aller plus loin<\/h3>\n\n\n\n<p>Une fois la cha\u00eene en place, plusieurs \u00e9volutions sont envisageables&nbsp;: ajouter des alertes automatiques sur des seuils (via Superset Alerts), connecter un moteur Trino pour f\u00e9d\u00e9rer plusieurs sources sans les dupliquer, ou encore exposer les dashboards en tant que datasets CKAN enrichis avec un lien retour vers la visualisation. L&rsquo;objectif final est de cr\u00e9er un cercle vertueux o\u00f9 les donn\u00e9es ouvertes deviennent r\u00e9ellement exploitables par tous les publics.<\/p>","protected":false},"excerpt":{"rendered":"<p>D\u00e9ployer Apache Superset pour visualiser les donn\u00e9es d&rsquo;un portail CKAN Apache Superset s&rsquo;impose comme l&rsquo;outil open source de r\u00e9f\u00e9rence pour l&rsquo;exploration et la visualisation de donn\u00e9es. Coupl\u00e9 \u00e0 un portail CKAN, il permet de transformer des jeux de donn\u00e9es bruts en tableaux de bord interactifs accessibles aux d\u00e9cideurs comme aux citoyens. Cet article d\u00e9taille la [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2048,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","osh_disable_topbar_sticky":"default","osh_disable_header_sticky":"default","osh_sticky_header_style":"default","osh_sticky_header_effect":"","osh_custom_sticky_logo":0,"osh_custom_retina_sticky_logo":0,"osh_custom_sticky_logo_height":0,"osh_background_color":"","osh_links_color":"","osh_links_hover_color":"","osh_links_active_color":"","osh_links_bg_color":"","osh_links_hover_bg_color":"","osh_links_active_bg_color":"","osh_menu_social_links_color":"","osh_menu_social_hover_links_color":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[17],"tags":[],"class_list":["post-2047","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data","entry","has-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>D\u00e9ployer Apache Superset pour visualiser les donn\u00e9es d&#039;un portail CKAN - askem<\/title>\n<meta name=\"description\" content=\"ASKEM BUREAU D&#039;\u00c9TUDES ET DE FORMATION NUM\u00c9RIQUE. 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