Add Charm Architecture DSL (#326)

* Add Charm Architecture DSL

---------

Co-authored-by: Konstantinos Tsakalozos <[email protected]>

docs/src/assets/charm-arch.dsl

@@ -0,0 +1,67 @@
+workspace {
+
+    model {
+        user = person "Administrator"
+
+
+        jujuSystem = softwareSystem "Juju" {
+
+            k8sCharm = container "K8s" "K8s Charm" {
+                technology "Charmed Operator"
+
+            }
+
+
+            charmWorker = container "K8s Worker" "K8s Worker Charm" {
+                technology "Charmed Operator"
+            }
+
+            k8sWorkerRelationData = container "K8s Worker Relation Data" {
+                technology "Juju Relation Databag"
+                k8sCharm -> this "Share Cluster Data"
+                charmWorker -> this "Reads from and writes to"
+                this -> charmWorker "Retrieves Peer Data"
+            }
+
+
+            jujuController = container "Juju Controller" {
+                technology "Snap Package"
+                this -> k8sCharm "Manages"
+                this -> charmWorker "Manages"
+            }
+
+            jujuCLI = container "Juju Client" {
+                technology "Snap Package"
+                user -> this "Uses"
+                this -> jujuController "Manages"
+            }
+
+            k8sRelationData = container "K8s Relation Data" {
+                k8sCharm -> this "Reads from and writes to"
+                this -> k8sCharm "Retrieves Peer Data"
+            }
+
+            externalCharms = container "Compatible Charms" "Other Compatible Canonical Charms" {
+                k8sCharm -> this "Integrates with"
+                charmWorker -> this "Integrates with
+                k8sRelationData -> this "Reads from and writes to"
+                k8sWorkerRelationData -> this "Reads from and writes to"
+            }
+
+
+
+        }
+
+    }
+
+    views {
+
+        container jujuSystem {
+            include *
+            autolayout tb
+        }
+
+        theme default
+    }
+
+}