Initial commit

roles/extroot/tasks/fstab.yml

@@ -0,0 +1,68 @@
+---
+# Get rootfs block device name
+- name: Get rootfs block device name
+  ansible.builtin.command:
+    cmd: 'sed -n -e "/\s\/overlay\s.*$/s///p" /etc/mtab'
+  register: rootfs_block_device_name
+  changed_when: rootfs_block_device_name.rc != 0
+
+# Set rootfs block device name fact
+- name: Set rootfs block device name fact
+  ansible.builtin.set_fact:
+    block_device_name: "{{ rootfs_block_device_name.stdout }}"
+
+# Mount rootfs data to another directory
+- name: Mount rootfs data to another directory
+  block:
+    # Add new mount point for root
+    - name: Add new mount point for root
+      uci:
+        command: "add"
+        config: "fstab"
+        section: "rwm"
+        type: "mount"
+
+    # Configure new mount point for root
+    - name: Configure new mount point for root
+      uci:
+        command: "set"
+        config: "fstab"
+        section: "rwm"
+        type: "mount"
+        value:
+          device: "{{ block_device_name }}"
+          target: "/rwm"
+
+# Get external USB device UUID
+- name: Get external usb device uuid
+  ansible.builtin.command:
+    cmd: 'block info /dev/{{ extroot_device }}1 | grep -o -e "UUID=\S*"'
+  register: external_usb_device_uuid
+  changed_when: external_usb_device_uuid.rc != 0
+
+# Set external usb device uuid fact
+- name: Set external usb device uuid fact
+  ansible.builtin.set_fact:
+    usb_device_uuid: '{{ external_usb_device_uuid.stdout | regex_search(''(?<=")(.*?)(?=")'') }}'
+
+# Mount external USB as overlayfs
+- name: Mount external usb as overlayfs
+  block:
+    # Add overlay mount point
+    - name: Add overlay mount point
+      uci:
+        command: "add"
+        config: "fstab"
+        section: "overlay"
+        type: "mount"
+
+    # Configure overlay mount point
+    - name: Configure overlay mount point
+      uci:
+        command: "set"
+        config: "fstab"
+        section: "overlay"
+        type: "mount"
+        value:
+          uuid: "{{ usb_device_uuid }}"
+          target: "/overlay"