Add diagrams and overview

HTWG-Infrastructure.md

@@ -0,0 +1,85 @@
+
+### HTWG Initial Situation
+
+#### Infrastructure Overview
+
+```nwdiag
+nwdiag {
+    Router [shape = cloud];
+    VMs [stacked, shape=note]
+    FullContainers [stacked, shape = "ellipse"]
+    Baremetal [stacked]
+    Storage [shape = flowchart.database]
+
+    network WAN {
+        Router
+    }
+
+    network ethernet-switch {
+        Baremetal
+        ThinClients
+        Router
+    }
+
+    network virtual-ethernet {
+        FullContainers
+        VMs
+        Baremetal
+    }
+
+    network fibrechannel-switch {
+        Baremetal
+        Storage
+    }
+}
+```
+
+```blockdiag
+blockdiag overview {
+#    orientation = portrait;
+
+    thinclients [stacked];
+
+    class ovzcnt [shape = roundedbox]; 
+    class kvm [shape = note]; 
+
+    system_containers [stacked];
+
+    HDD [stacked, shape = flowchart.database];
+
+    group storage {
+    }
+
+    group tisrvs {
+        LVM [shape = square, stacked];
+        LVM -> HDD [style = dashed];
+
+        group {
+            label = "Containers (OpenVZ)";
+            homer [class = ovzcnt];
+            burns [class = ovzcnt];
+            skinner [class = ovzcnt];
+
+            group {
+                label = "marge";
+                marge [class = ovzcnt];
+                LV -> LVM [style = dashed];
+            }
+
+        }
+
+        group {
+            label = "Machines (KVM)";
+            lisa [class = kvm];
+            ainsrv0 [class = kvm];
+            more [class = kvm, stacked];
+        }
+
+    }
+
+    group {
+        label="thinclients";
+        terminal-client -> thinclients [folded];
+    }
+}
+```