1335

files/ansible-playbooks/ptsd_reacquire_attempt.yml

@@ -1,14 +1,18 @@
-# ptsd_reacquire_attempt.yml — DHCP reacquire verification (standalone)
+# ptsd_reacquire_attempt.yml — DHCP reacquire verification + CASE A cleanup (standalone)
 # Purpose:
-#   - Re-run Phase 0 to reach DEV2 under uncertain connectivity
+#   1) Re-run Phase 0 connectivity to DEV2 (same logic as main playbook)
-#   - Verify "migrated to DHCP" state on DEV2:
+#   2) Verify migrated DHCP state:
-#       * ppp0 is absent
+#        - ppp0 is absent
-#       * eth0.4000 exists AND has IPv4
+#        - eth0.4000 exists AND has IPv4
+#   3) If CASE A confirmed (DHCP ok, no PPP), perform minimal cleanup step:
+#        - detect pending reboot process; if found, kill it
+#      Maintain cumulative cleanup report and print at end.
+#
 # Notes:
-#   - Intentionally ignores /tmp/ptsd.inprogress (it may be set during migration)
+#   - Does NOT respect /tmp/ptsd.inprogress (verification runs while migration is in progress).
-#   - Intentionally does NO cleanup (to avoid impacting the main playbook)
+#   - Does NOT do DEV1 teardown cleanup here (no tunnel/IP removal); this is intentional.
 
-- name: "PTSD DHCP Reacquire Attempt | Phase 0 | Connectivity + wrapper + DHCP state check"
+- name: "PTSD DHCP Reacquire Attempt | Phase 0 | Connectivity + wrapper + DHCP state check + CASE A cleanup"
   hosts: all
   gather_facts: no
 
@@ -594,54 +598,54 @@
           esac
       changed_when: false
 
-    # ============================ VERIFICATION: DHCP STATE ON DEV2 ============================
+    # ============================ VERIFY: DHCP MIGRATION STATE ============================
-    - name: "VERIFY | DEV2 check: ppp0 exists?"
+    - name: VERIFY | DEV2 check: ppp0 exists?
       delegate_to: localhost
       ansible.builtin.shell: |
         export DEV2_CMD="ip link show ppp0 >/dev/null 2>&1 && echo YES || echo NO"
         {{ dev2_exec_cmd }}
       args: { executable: /bin/bash }
-      register: dev2_ppp0_exists
+      register: v_ppp0_exists
       changed_when: false
       failed_when: false
 
-    - name: "VERIFY | DEV2 check: eth0.4000 exists?"
+    - name: VERIFY | DEV2 check: eth0.4000 exists?
       delegate_to: localhost
       ansible.builtin.shell: |
         export DEV2_CMD="ip link show eth0.4000 >/dev/null 2>&1 && echo YES || echo NO"
         {{ dev2_exec_cmd }}
       args: { executable: /bin/bash }
-      register: dev2_eth04000_exists
+      register: v_eth04000_exists
       changed_when: false
       failed_when: false
 
-    - name: "VERIFY | DEV2 check: eth0.4000 has IPv4?"
+    - name: VERIFY | DEV2 check: eth0.4000 has IPv4?
       delegate_to: localhost
       ansible.builtin.shell: |
         export DEV2_CMD="ip -4 addr show dev eth0.4000 2>/dev/null | grep -m1 'inet ' >/dev/null 2>&1 && echo YES || echo NO"
         {{ dev2_exec_cmd }}
       args: { executable: /bin/bash }
-      register: dev2_eth04000_has_ipv4
+      register: v_eth04000_has_ipv4
       changed_when: false
       failed_when: false
 
-    - name: "VERIFY | Summarize DHCP migration state"
+    - name: VERIFY | Summarize DHCP migration state
       delegate_to: localhost
       ansible.builtin.set_fact:
-        ppp0_exists: "{{ (dev2_ppp0_exists.stdout | default('') | trim) == 'YES' }}"
+        ppp0_exists: "{{ (v_ppp0_exists.stdout | default('') | trim) == 'YES' }}"
-        eth04000_exists: "{{ (dev2_eth04000_exists.stdout | default('') | trim) == 'YES' }}"
+        eth04000_exists: "{{ (v_eth04000_exists.stdout | default('') | trim) == 'YES' }}"
-        eth04000_has_ipv4: "{{ (dev2_eth04000_has_ipv4.stdout | default('') | trim) == 'YES' }}"
+        eth04000_has_ipv4: "{{ (v_eth04000_has_ipv4.stdout | default('') | trim) == 'YES' }}"
         dhcp_migrated_ok: >-
           {{
-            ((dev2_ppp0_exists.stdout | default('') | trim) != 'YES')
+            ((v_ppp0_exists.stdout | default('') | trim) != 'YES')
             and
-            ((dev2_eth04000_exists.stdout | default('') | trim) == 'YES')
+            ((v_eth04000_exists.stdout | default('') | trim) == 'YES')
             and
-            ((dev2_eth04000_has_ipv4.stdout | default('') | trim) == 'YES')
+            ((v_eth04000_has_ipv4.stdout | default('') | trim) == 'YES')
           }}
       changed_when: false
 
-    - name: "VERIFY | Result: DHCP migrated (SUCCESS) or not (graceful stop)"
+    - name: VERIFY | Result: DHCP migrated (SUCCESS) or not (graceful stop)
       delegate_to: localhost
       ansible.builtin.debug:
         msg:
@@ -652,8 +656,95 @@
           - "dhcp_migrated_ok={{ dhcp_migrated_ok }}"
       changed_when: false
 
-    - name: "VERIFY | Graceful stop if DHCP migration state is not confirmed"
+    - name: VERIFY | Graceful stop if DHCP migration state is not confirmed
+      when: not (dhcp_migrated_ok | bool)
+      delegate_to: localhost
+      ansible.builtin.debug:
+        msg:
+          - "Graceful stop: DHCP migration state is not confirmed (not CASE A)."
+          - "ppp0_exists={{ ppp0_exists }}"
+          - "eth0.4000_exists={{ eth04000_exists }}"
+          - "eth0.4000_has_ipv4={{ eth04000_has_ipv4 }}"
+          - "dev2_conn_final={{ dev2_conn_final }}"
+      changed_when: false
+
+    - name: VERIFY | End host if DHCP migration state is not confirmed
       when: not (dhcp_migrated_ok | bool)
       ansible.builtin.meta: end_host
 
-  # Intentionally no post_tasks cleanup in this playbook.
+    # ============================ CASE A CLEANUP: CANCEL PENDING REBOOT ============================
+    - name: CASE A | Initialize cumulative cleanup report
+      when: dhcp_migrated_ok | bool
+      delegate_to: localhost
+      ansible.builtin.set_fact:
+        cleanup_report: "case A observed"
+      changed_when: false
+
+    - name: "CASE A | DEV2 detect pending reboot processes (best-effort)"
+      when: dhcp_migrated_ok | bool
+      delegate_to: localhost
+      ansible.builtin.shell: |
+        # BusyBox-friendly: look for delayed reboot patterns.
+        export DEV2_CMD="ps w 2>/dev/null | grep -E '[r]eboot( |$)|[n]ohup reboot' || true"
+        {{ dev2_exec_cmd }}
+      args: { executable: /bin/bash }
+      register: reboot_ps
+      changed_when: false
+      failed_when: false
+
+    - name: "CASE A | DEV2 cancel pending reboot if found (kill reboot PIDs)"
+      when: dhcp_migrated_ok | bool
+      delegate_to: localhost
+      ansible.builtin.shell: |
+        set -e
+        # Extract PID from BusyBox ps output: assume PID is the first column.
+        # Only target lines that clearly include "reboot" or "nohup reboot".
+        PIDS="$(printf '%s\n' "{{ reboot_ps.stdout | default('') | regex_replace('\r','') }}" \
+          | grep -E '(^| )reboot( |$)|nohup reboot' \
+          | awk '{print $1}' \
+          | grep -E '^[0-9]+$' \
+          | sort -u || true)"
+
+        if [ -z "$PIDS" ]; then
+          echo "NONE"
+          exit 0
+        fi
+
+        # Try TERM then KILL.
+        for p in $PIDS; do
+          kill "$p" 2>/dev/null || true
+        done
+        sleep 1
+        for p in $PIDS; do
+          kill -9 "$p" 2>/dev/null || true
+        done
+
+        echo "$PIDS"
+      args: { executable: /bin/bash }
+      register: reboot_kill
+      changed_when: false
+      failed_when: false
+
+    - name: CASE A | Append reboot cancellation result to cleanup report
+      when: dhcp_migrated_ok | bool
+      delegate_to: localhost
+      ansible.builtin.set_fact:
+        cleanup_report: >-
+          {{
+            cleanup_report ~
+            (
+              ('; pending reboot found, cancelled (pids=' ~ (reboot_kill.stdout | trim) ~ ')')
+              if ((reboot_kill.stdout | default('') | trim) not in ['','NONE'])
+              else
+              '; no pending reboot found'
+            )
+          }}
+      changed_when: false
+
+    - name: CASE A | Final cumulative cleanup report
+      when: dhcp_migrated_ok | bool
+      delegate_to: localhost
+      ansible.builtin.debug:
+        msg:
+          - "{{ cleanup_report }}"
+      changed_when: false