Revise MVK documentation: replace mermaid diagrams with images, add new sections for single node and three node viability, and enhance the usage slide with additional context.

pages/diagram-3node.md

@@ -8,33 +8,10 @@ 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
-```
+<img src="/k8s-3.drawio.png">
 
 </div>
 
-<div v-click>
-
-close to production - storage and multi node 
-
-</div>
 
 <!--
 

pages/diagram-single-node.md

@@ -8,34 +8,12 @@ The **V** in MVK is for *viable*, so why is MVK viable for single 'dev' nodes ?
 
 <div class="grid grid-cols-1">
 
-```mermaid
-%%{init: {'theme': 'dark', 'themeVariables': { 'darkMode': true }}}%%
-flowchart LR
-    root((1-node))
-    PS[Persistent Storage]
-    LH[Local attached]
-    ING[Ingress]
-    TRA[Traefik]
-    MET[cert-manager]
-    ETCD[etcd]
-    
-    root --> PS --> LH
-    root --> ING --> TRA
-    ING --> MET
-    root --> ETCD 
-    
-    classDef default fill:transparent,color:#fff,stroke:#888
-```
+
+<img src="/k8s-2.drawio.png">
+
 
 </div>
 
-<div v-click>
-
-Locally attached storage -  single node implementation
-
-Ingress can represent that of prodution environmetns that use cert-manager
-
-</div>
 
 <!--
 

pages/infctl-summary-end.md

@@ -0,0 +1,31 @@
+# Pre release
+
+<div grid="~ cols-2 gap-4">
+<div>
+
+[MVK](https://mvk.headshed.dev) is new and evolving
+
+`infctl` is an early release.
+
+Its a snapshot of ideas I've been working on for over 10 years.
+
+I'd like to share it as I code it and use it.
+
+It is open to ideas, comments, contribution and collaboration.
+
+License: [GNU General Public License](https://www.gnu.org/licenses/gpl-3.0.en.html)
+
+
+# [https://headshed.dev/n25](https://headshed.dev/n25) 
+
+</div>
+<div>
+
+<img class="mx-auto" alt="qr code for https://headshed.dev/n25/" src="/n25-qr.png">
+
+</div>
+</div>
+
+<!--
+TBC
+-->

pages/make-it-work.md

@@ -0,0 +1,38 @@
+---
+level: 2
+---
+
+# MVK Viablility 
+
+### Is MVK, single node, viable ? 
+
+<div class="grid grid-cols-1">
+
+<div class="flex justify-center">
+
+<img src="/k8s-2.drawio.png">
+
+</div>
+
+</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
+
+-->

pages/out-the-box-node.md

@@ -0,0 +1,38 @@
+---
+level: 2
+---
+
+# K8s Viablility 
+
+Is K8s out of the box, self-hosted, viable ? 
+
+<div class="grid grid-cols-1">
+
+<div class="flex justify-center">
+
+<img src="/k8s-1.drawio.png">
+
+</div>
+
+</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
+
+-->

pages/three-node-happy.md

@@ -0,0 +1,36 @@
+---
+level: 2
+---
+
+# MVK for pre-production
+
+### MVK, three node, production
+
+<div class="grid grid-cols-1">
+
+<div class="flex justify-center">
+    <img src="/k8s-3.drawio.png" alt="3-node Kubernetes diagram">
+</div>
+
+</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
+
+-->

pages/usage-slide.md

@@ -50,6 +50,9 @@ infctl -f pipelines/dev/vagrant-k3s.json
 
 ````
 
+[cast](https://ascii.headshed.dev/a/OB2jSE47d1HTz2d5vFhJhIKAl)
+
+
 <!--
 
 `infctl` has only one compulsory parameter 

pages/why.md

@@ -0,0 +1,31 @@
+# Why ?
+
+* 2025 building a minimal k8s for our own hosting
+* asked for an intro for techs getting into k8s
+* been working with Linux and Unix from SME to large enterprise since before Y2K 
+* k8s since 2018 
+
+
+<div v-click>
+
+**I want to ...**
+
+➤ bring down the cost of k8s
+
+➤ pass on what I have learnt
+</div>
+
+
+<div v-click>
+➤ not pay vercel
+</div>
+
+
+
+<!--
+
+
+
+
+
+-->