added gcloud intro

- Created a new script `instalL_asciinema.sh` to automate the installation of asciinema.
- The script detects the operating system and architecture to download the appropriate binary.
- Supports Linux (both musl and GNU) and macOS (Darwin).
- Sets executable permissions for the downloaded binary and verifies the installation by displaying the version.

pages/diagram-3node.md

@@ -0,0 +1,57 @@
+---
+level: 2
+---
+
+# MVK for pre-production
+
+The **V** in MVK is for *viable*, so why is MVK viable for 3 or more nodes ?
+
+<div class="grid grid-cols-1">
+
+```mermaid
+%%{init: {'theme': 'dark', 'themeVariables': { 'darkMode': true }}}%%
+flowchart LR
+    root((3-node))
+    PS[Persistent Storage]
+    LH[Longhorn]
+    ING[Ingress]
+    TRA[Traefik]
+    MET[cert-manager]
+    ETCD[etcd]
+    KA[keepalived]
+    
+    root --> PS --> LH
+    root --> ING --> TRA
+    ING --> MET
+    root --> ETCD --> KA
+    
+    classDef default fill:transparent,color:#fff,stroke:#888
+```
+
+</div>
+
+<div v-click>
+
+close to production - storage and multi node 
+
+</div>
+
+<!--
+
+why is MVK 'viable' ?
+
+Out of the box K8s examples and some deployments are not useable without other externalities
+
+* Persistent storage - often built in to managed kubernetes cloud platforms
+* Ingress - is also provided by cloud providers, K8s does not natively have this
+* ETCD is often offered as the 'management plane', again as part of managed kubernetes by cloud providers
+
+K3s does not use k8s traditional 3 node ETCD unless you configure it to do so
+
+MKK's infctl pipelines configure 3 node k3s on all 3 nodes
+
+it also adds Longhorn for persistent storage
+
+ingress is impossible without metallb and some kind of load balancer - traefik being my preference but others could be used, of course
+
+-->