refactor: make SSH additive boolean, add ide=none

SSH is now a standalone `ssh: true/false` value that starts sshd on
port 22 *in addition to* whatever IDE is running, rather than replacing
it. The `ide` value loses the `ssh` option and gains `none` (keep
container alive with no GUI IDE, useful when ssh: true is the only
access method).

- chart/values.yaml: replace `ide: ssh` with `ssh: false` boolean
- chart/templates/deployment.yaml: expose port 22 when ssh=true,
  port 5800 when ide!=none; probes use HTTP (VNC) or TCP socket (SSH-only)
- chart/templates/service.yaml: include both ports when both enabled
- scripts/cont-init-sshd.sh: check SSH=true instead of IDE=ssh
- scripts/startapp.sh: add ide=none case (sleep infinity), drop ssh case
- chart/Chart.yaml: bump to 0.1.6
- README.md: update IDE choice and SSH access docs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

chart/Chart.yaml

@@ -2,5 +2,5 @@ apiVersion: v2
 name: devcontainer
 description: Antigravity Dev Container with Happy Coder AI assistant
 type: application
-version: 0.1.5
+version: 0.1.6
 appVersion: "latest"

chart/templates/deployment.yaml

@@ -25,18 +25,21 @@ spec:
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           ports:
-            {{- if eq (.Values.ide | default "vscode") "ssh" }}
-            - containerPort: 22
-              name: ssh
-              protocol: TCP
-            {{- else }}
+            {{- if ne (.Values.ide | default "vscode") "none" }}
             - containerPort: 5800
               name: vnc-web
               protocol: TCP
             {{- end }}
+            {{- if .Values.ssh }}
+            - containerPort: 22
+              name: ssh
+              protocol: TCP
+            {{- end }}
           env:
             - name: IDE
               value: {{ .Values.ide | default "vscode" | quote }}
+            - name: SSH
+              value: {{ .Values.ssh | toString | quote }}
             - name: USER_ID
               value: {{ .Values.userId | quote }}
             - name: GROUP_ID
@@ -68,7 +71,7 @@ spec:
               mountPath: /home
             - name: workspace
               mountPath: /workspace
-          {{- if ne (.Values.ide | default "vscode") "ssh" }}
+          {{- if ne (.Values.ide | default "vscode") "none" }}
           livenessProbe:
             httpGet:
               path: /
@@ -81,7 +84,7 @@ spec:
               port: 5800
             initialDelaySeconds: 10
             periodSeconds: 5
-          {{- else }}
+          {{- else if .Values.ssh }}
           livenessProbe:
             tcpSocket:
               port: 22

chart/templates/service.yaml

@@ -6,16 +6,17 @@ metadata:
     {{- include "antigravity.labels" . | nindent 4 }}
 spec:
   ports:
-    {{- if eq (.Values.ide | default "vscode") "ssh" }}
-    - port: 22
-      name: ssh
-      protocol: TCP
-      targetPort: ssh
-    {{- else }}
+    {{- if ne (.Values.ide | default "vscode") "none" }}
     - port: 5800
       name: vnc-web
       protocol: TCP
       targetPort: vnc-web
     {{- end }}
+    {{- if .Values.ssh }}
+    - port: 22
+      name: ssh
+      protocol: TCP
+      targetPort: ssh
+    {{- end }}
   selector:
     {{- include "antigravity.labels" . | nindent 4 }}

chart/values.yaml

@@ -13,10 +13,13 @@ githubRepo: ""
 # Options:
 #   vscode      — VSCode via VNC browser UI on port 5800 (default)
 #   antigravity — Google Antigravity (VSCode fork) via VNC on port 5800
-#   ssh         — OpenSSH server on port 22 (no VNC GUI)
-#                 Requires SSH_AUTHORIZED_KEYS in the env secret.
+#   none        — no IDE; useful when ssh: true is the sole access method
 ide: vscode
 
+# Start an OpenSSH server on port 22 in addition to the IDE.
+# Set SSH_AUTHORIZED_KEYS in the env secret to allow key-based login.
+ssh: false
+
 # Happy Coder endpoints
 happyServerUrl: "https://happy.farh.net"
 happyWebappUrl: "https://happy-coder.farh.net"