Improve ISO installer non-GPU and bundled setup flow

ansible/entry.yml

@@ -11,6 +11,7 @@
     python_version: "3.11"
     cuda_version: "12.4"
     skip_roles: ""   # comma-separated list of role names to skip (set by install.sh)
+    gpu_available: false
 
   roles:
     - role: base

ansible/roles/docker/tasks/main.yml

@@ -34,6 +34,21 @@
     enabled: yes
     state: started
 
+- name: Configure Docker standard runtime for non-GPU installs
+  copy:
+    dest: /etc/docker/daemon.json
+    content: |
+      {
+        "log-driver": "json-file",
+        "log-opts": {
+          "max-size": "100m",
+          "max-file": "3"
+        }
+      }
+    mode: "0644"
+  notify: restart docker
+  when: not (gpu_available | default(false) | bool)
+
 # NVIDIA Container Toolkit (allows GPU passthrough into containers)
 - name: Add NVIDIA Container Toolkit repo
   shell: |
@@ -44,16 +59,19 @@
       tee /etc/apt/sources.list.d/nvidia-container-toolkit.list
   args:
     creates: /etc/apt/sources.list.d/nvidia-container-toolkit.list
+  when: gpu_available | default(false) | bool
 
 - name: Install NVIDIA Container Toolkit
   apt:
     name: nvidia-container-toolkit
     state: present
     update_cache: yes
+  when: gpu_available | default(false) | bool
 
 - name: Configure Docker to use NVIDIA runtime
   shell: nvidia-ctk runtime configure --runtime=docker
   notify: restart docker
+  when: gpu_available | default(false) | bool
 
 - name: Set NVIDIA as default Docker runtime
   copy:
@@ -75,3 +93,4 @@
       }
     mode: "0644"
   notify: restart docker
+  when: gpu_available | default(false) | bool