Improve diagram

.gitignore

@@ -1,3 +1,4 @@
 *.secret.env
 
 serguzim.net.png
+diagram_assets/

diagram.py

@@ -1,21 +1,51 @@
 """ Diagram to visualize serguzim.net """
+# pragma pylint: disable=pointless-statement
+
+import glob
+import mimetypes
+import os
+from urllib.request import urlretrieve
 
 from diagrams import Cluster, Diagram
 
-from diagrams.oci.compute import Container, OCIRegistry
+from diagrams.custom import Custom
+
 from diagrams.oci.storage import ObjectStorage
 
-from diagrams.onprem.ci import Droneci
 from diagrams.onprem.database import Influxdb, Postgresql
+from diagrams.onprem.inmemory import Redis
 from diagrams.onprem.monitoring import Grafana, Prometheus
 from diagrams.onprem.network import Caddy
 from diagrams.onprem.vcs import Gitea
 
+import requests
+
+
+ASSETS_DIR = "./diagram_assets/"
+os.makedirs(ASSETS_DIR, exist_ok=True)
+
+
 def add_to_groups(service, *groups):
     """ Add a service to groups like 'db_users' """
     for group in groups:
         group.append(service)
 
+def get_custom_icon(name, url):
+    """ Download icon for service to location. Reuses existing icons. """
+
+    icon_no_extension = os.path.join(ASSETS_DIR, name)
+
+    exisiting_icons = glob.glob(icon_no_extension + ".*")
+    if exisiting_icons:
+        return exisiting_icons[0]
+
+    response = requests.head(url, allow_redirects=True)
+    extension = mimetypes.guess_extension(response.headers['Content-Type'])
+
+    icon = icon_no_extension + extension
+    urlretrieve(url, icon)
+    return icon
+
 
 with Diagram("serguzim.net", show=False):
 
@@ -31,7 +61,12 @@ with Diagram("serguzim.net", show=False):
 
         proxy = Caddy()
 
-        ci = Droneci("ci.serguzim.me")
+        ICON_URL = "https://avatars.githubusercontent.com/u/105618662"
+        analytics = Custom("analytics.serguzim.me", get_custom_icon("umami", ICON_URL))
+        add_to_groups(analytics, services, db_users)
+
+        ICON_URL = "https://avatars.githubusercontent.com/u/84780935"
+        ci = Custom("ci.serguzim.me", get_custom_icon("woodpecker-ci", ICON_URL))
         add_to_groups(ci, services, db_users)
 
         db_time = Influxdb("tick.serguzim.me")
@@ -42,20 +77,26 @@ with Diagram("serguzim.net", show=False):
         graph = Grafana("graph.serguzim.me")
         add_to_groups(graph, services, db_users)
 
-        mail = Container("mail.serguzim.me")
+        ICON_URL = "https://avatars.githubusercontent.com/u/23747925"
+        mail = Custom("mail.serguzim.me", get_custom_icon("mailcow", ICON_URL))
         add_to_groups(mail, services)
 
-        matrix = Container("matrix.serguzim.me")
+        ICON_URL = "https://avatars.githubusercontent.com/u/8418310?s=200&v=4"
+        matrix = Custom("matrix.serguzim.me", get_custom_icon("matrix", ICON_URL))
         add_to_groups(matrix, services, db_users, objectstore_users)
 
         prometheus = Prometheus("prometheus.serguzim.me")
         add_to_groups(prometheus, services)
 
-        registry = OCIRegistry("registry.serguzim.me")
-        add_to_groups(registry , services, db_users, objectstore_users)
+        ICON_URL = "https://github.com/TandoorRecipes/recipes/raw/develop/cookbook/static/assets/logo_color512.png"
+        recipies = Custom("recipies.serguzim.me", get_custom_icon("tandoor", ICON_URL))
+        add_to_groups(recipies, services, db_users)
 
-        vcs = Gitea("git.serguzim.me")
-        add_to_groups(vcs, services, db_users)
+        vcs = Gitea("git.serguzim.me\nregistry.serguzim.me")
+        add_to_groups(vcs, services, db_users, objectstore_users)
+
+        webdis = Redis("webdis.huck.serguzim.me")
+        add_to_groups(webdis, services)
 
         db_users >> db
         proxy >> services
@@ -65,7 +106,9 @@ with Diagram("serguzim.net", show=False):
         services = []
 
         proxy = Caddy()
-        minecraft = Container("minecraft.serguzim.me")
+
+        ICON_URL = "https://www.pikpng.com/pngl/m/11-111495_minecraft-block-png-minecraft-logo-clipart.png"
+        minecraft = Custom("minecraft.serguzim.me", get_custom_icon("minecraft", ICON_URL))
         add_to_groups(minecraft, services)
 
         proxy >> services