1 files changed, 27 insertions, 0 deletions
diff --git a/state_diagram.txt b/state_diagram.txt
new file mode 100644
index 0000000..2da76b1
--- /dev/null
+++ b/state_diagram.txt
@@ -0,0 +1,27 @@
+@startuml
+:MQTT service starts;
+start
+
+if (certificate expired) then
+    #pink:raise error;
+    kill
+endif
+:start accepting connections;
+:check certificate;
+
+if (expiring soon) then (yes)
+    :generate new certificate;
+    :send to clients;
+
+    if (confirmation NOK) then
+        #pink:raise error;
+        kill
+    endif
+    :restart MQTT;
+
+else (no)
+    :continue;
+endif
+
+stop
+@enduml