homelab/tasks/iscsi.yml

---
- name: Ensure open-iscsi is installed
  package:
    name: open-iscsi
    state: present

- name: Ensure parted is installed
  package:
    name: parted
    state: present

- name: Discover iSCSI targets
  command: sudo iscsiadm -m discovery -t sendtargets -p "10.10.10.2"
  register: iscsi_discovery

- name: Set target_iqn variable based on discovery
  set_fact:
    target_iqn: "{{ item.split(' ')[1] }}"
  loop: "{{ iscsi_discovery.stdout_lines }}"
  when: item.startswith("10.10.10.2")

- name: Check if iSCSI target is already connected
  command: iscsiadm -m session
  register: iscsi_sessions
  changed_when: false
  failed_when: iscsi_sessions.rc not in [0, 21]  # Allow success if the return code is 0 or 21

- name: Connect to iSCSI target
  command: sudo iscsiadm -m node -T "{{ target_iqn }}" -p "10.10.10.2" --login
  when: target_iqn is defined and target_iqn not in iscsi_sessions.stdout

- name: Set iSCSI target for automatic login
  command: sudo iscsiadm -m node -T "{{ target_iqn }}" -p "10.10.10.2" --op update --name node.startup --value automatic
  when: target_iqn is defined

- name: Fail if no target_iqn found
  fail:
    msg: "No target IQN found for iSCSI server IP 10.10.10.2"
  when: target_iqn is not defined

- name: List all block devices
  command: lsblk -o NAME,SIZE,TYPE,MODEL
  register: lsblk_output

- name: Set iSCSI device variable
  set_fact:
    iscsi_device: "/dev/{{ item.split()[0] }}"
  loop: "{{ lsblk_output.stdout_lines }}"
  when: item.split()[2] == 'disk' and 'iSCSI' in item  # Adjust based on the MODEL you observe

- name: Fail if no iSCSI device found
  fail:
    msg: "No iSCSI device found!"
  when: iscsi_device is not defined

- name: Create a partition on iSCSI device using parted
  parted:
    device: "{{ iscsi_device }}"
    number: 1
    state: present
    part_type: primary
    fs_type: ext4
    part_start: 0%   # Start at the beginning of the device
    part_end: 100%    # Use the entire available space

- name: Create filesystem on new partition
  filesystem:
    fstype: ext4
    dev: "{{ iscsi_device }}1"  # Format the partition

- name: Create mount point
  file:
    path: /data
    state: directory

- name: Mount iSCSI target
  mount:
    path: /data
    src: "{{ iscsi_device }}1"  # Mount the new partition
    fstype: ext4
    opts: defaults,_netdev
    state: mounted

# - name: Ensure iSCSI target is mounted at boot
#   lineinfile:
#     path: /etc/fstab
#     line: "{{ iscsi_device }}1 /data ext4 _netdev 0 0"
#     state: present