Fix k0s installation in airgap env

hack/k0s-ag-image/Dockerfile

@@ -0,0 +1,5 @@
+FROM nginx:1.27
+ARG K0S_VERSION
+ADD default.conf /etc/nginx/conf.d/default.conf
+ADD --chown=nginx https://github.com/k0sproject/k0s/releases/download/${K0S_VERSION}/k0s-${K0S_VERSION}-amd64 /var/www/html/k0s
+ADD --chown=nginx https://github.com/k0sproject/k0s/releases/download/${K0S_VERSION}/k0s-airgap-bundle-${K0S_VERSION}-amd64  /var/www/html/k0s-airgap-bundle

hack/k0s-ag-image/default.conf

@@ -0,0 +1,21 @@
+server {
+    proxy_max_temp_file_size 0;
+    listen       80;
+    sendfile        on;
+    tcp_nopush     on;
+    tcp_nodelay        on;
+    server_name localhost;
+
+    keepalive_timeout  70;
+
+    root   /var/www/html;
+    location / {
+    }
+
+    client_max_body_size 512m;
+
+    location /heathz {
+      return 200 'OK';
+    }
+
+}

templates/cluster/vsphere-standalone-cp/Chart.yaml

@@ -6,7 +6,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.0.3
+version: 0.0.4
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.

templates/cluster/vsphere-standalone-cp/templates/k0scontrolplane.yaml

@@ -6,11 +6,18 @@ spec:
   replicas: {{ .Values.controlPlaneNumber }}
   version: {{ .Values.k0s.version }}
   k0sConfigSpec:
+    {{- if .Values.airgap }}
+    downloadURL: {{ .Values.k0s.downloadURL }}
+    {{- end }}
     files:
       - path: /home/{{ .Values.controlPlane.ssh.user }}/.ssh/authorized_keys
         permissions: "0600"
         content: "{{ trim .Values.controlPlane.ssh.publicKey }}"
     preStartCommands:
+      {{- if .Values.airgap }}
+      - mkdir -p /var/lib/k0s/images
+      - curl -fsL {{ .Values.k0s.bundleURL }} -o /var/lib/k0s/images/k0s-airgap-bundle
+      {{- end }}
       - chown {{ .Values.controlPlane.ssh.user }} /home/{{ .Values.controlPlane.ssh.user }}/.ssh/authorized_keys
       - sed -i 's/"externalAddress":"{{ .Values.controlPlaneEndpointIP }}",//' /etc/k0s.yaml
     args:

templates/cluster/vsphere-standalone-cp/templates/k0sworkerconfigtemplate.yaml

@@ -6,9 +6,16 @@ spec:
   template:
     spec:
       version: {{ .Values.k0s.version }}
+      {{ if .Values.airgap }}
+      downloadURL: {{ .Values.k0s.downloadURL }}
+      {{- end }}
       files:
         - path: /home/{{ .Values.worker.ssh.user }}/.ssh/authorized_keys
           permissions: "0600"
           content: "{{ trim .Values.worker.ssh.publicKey }}"
       preStartCommands:
+        {{ if .Values.airgap }}
+        - mkdir -p /var/lib/k0s/images
+        - curl -fsL {{ .Values.k0s.bundleURL }} -o /var/lib/k0s/images/k0s-airgap-bundle
+        {{- end }}
         - chown {{ .Values.worker.ssh.user }} /home/{{ .Values.worker.ssh.user }}/.ssh/authorized_keys

templates/cluster/vsphere-standalone-cp/values.schema.json

@@ -20,6 +20,10 @@
       "type": "number",
       "minimum": 1
     },
+    "airgap": {
+      "description": "Cluster created in airgap env",
+      "type": "boolean"
+    },
     "clusterNetwork": {
       "type": "object",
       "properties": {
@@ -198,6 +202,14 @@
         "version":{
           "description": "K0s version to use",
           "type": "string"
+        },
+	"downloadURL":{
+          "description": "K0s download URL",
+          "type": "string"
+        },
+	"bundleURL":{
+          "description": "K0s airgap bundle URL",
+          "type": "string"
         }
       }
     }

templates/cluster/vsphere-standalone-cp/values.yaml

@@ -46,9 +46,13 @@ worker:
 # K0s parameters
 k0s:
   version: v1.31.1+k0s.1
+  downloadURL: ""
+  bundleURL: ""
 
 # extensions defines custom Helm and image repositories to use for pulling
 # k0s extensions.
 extensions:
   chartRepository: ""
   imageRepository: ""
+
+airgap: false