Use prometheus image from public registry istance and remove watchtower notification.

monitoring/docker-compose.yaml

@@ -13,7 +13,7 @@ volumes:
 
 services:
   prometheus:
-    image: cs-git.ddnss.de/production/prometheus
+    image: gitea.steinle-computer.de/production/prometheus
     container_name: prometheus
     hostname: prometheus
     restart: unless-stopped
@@ -108,6 +108,3 @@ services:
       WATCHTOWER_MONITOR_ONLY: false
       WATCHTOWER_WARN_ON_HEAD_FAILURE: "never"
       WATCHTOWER_SCHEDULE: "0 0 2 * * *"
-      WATCHTOWER_NOTIFICATIONS: "shoutrrr"
-      WATCHTOWER_NOTIFICATION_URL: "mattermost://watchtower@cs-mm.ddnss.de/og4ckuqet7fafb8kjuaigzuh7c"
-      WATCHTOWER_NOTIFICATION_TEMPLATE: "{{range .}} Production - {{.Time.Format \"2006-01-02 15:04:05\"}} ({{.Level}}): {{.Message}}{{println}}{{end}}"

monitoring/watchtower-config.json

@@ -1,8 +1,9 @@
 {
 	"auths": {
-		"cs-git.ddnss.de": {
+		"gitea.steinle-computer.de": {
 			"auth": "Y2hyaXM6cScsXEgoT2Q6RzMpLlh2PCMhNVA="
-		},		"https://index.docker.io/v1/": {
+		},
+		"https://index.docker.io/v1/": {
 			"auth": "Y3MyMjExOkU2U2Njc3ViRFJrYUppMlNMVSUh"
 		}
 	}