Add automatic empty icon on missing in visualize script

scripts/visualize.py

@@ -2,6 +2,7 @@
 
 import json
 import sys
+import requests
 
 import jinja2
 import hcl2
@@ -12,9 +13,6 @@ icon_overrides = {
     "backup": "restic",
     "calibre_web": "calibre-web",
     "deploy": "adnanh-webhook",
-    "dmarc_report": None,
-    "emgauwa": None,
-    "extra_services": None,
     "forgejo_runner": "forgejo",
     "foundryvtt": "foundry-virtual-tabletop",
     "healthcheck": "healthchecks",
@@ -25,8 +23,6 @@ icon_overrides = {
     "minecraft_3": "minecraft",
     "node_exporter": "prometheus",
     "paperless": "paperless-ngx",
-    "phpvms": None,
-    "phpvms_test": None,
     "reitanlage_oranienburg": "grav",
     "tandoor": "tandoor-recipes",
     "tinytinyrss": "tiny-tiny-rss",
@@ -49,7 +45,7 @@ icon_url = {
 }
 
 def get_icon(svc):
-    svc = icon_overrides.get(svc, svc) or 'docker'
+    svc = icon_overrides.get(svc, svc)
     fmt = icon_format.get(svc, 'svg')
     return icon_url.get(svc, f'https://cdn.jsdelivr.net/gh/selfhst/icons/{fmt}/{svc}.{fmt}')
 
@@ -84,7 +80,11 @@ def parse_service(svc, data, hosts):
     data['key'] = svc_key
     data['host_key'] = host_key(data["host"], hosts)
     data['label'] = "\\n".join([svc] + domains)
+
     data['icon'] = get_icon(svc)
+    r = requests.get(data['icon'])
+    if r.status_code != 200:
+        data['icon'] = get_icon('docker')
 
     return dict(data)