Fix missing service stops in unstack.sh

Several services started by stack.sh were not properly stopped in
unstack.sh, which could leave processes running and prevent clean
restacking:

- tcpdump: lib/tcpdump was not sourced, so stop_tcpdump was unavailable.
  Added source and stop call when tcpdump service is enabled.

- s-container-sync: Swift's container-sync daemon was started via
  run_process but not explicitly stopped. Added stop_process call in
  stop_swift function.

- ldap: The stop_ldap function existed but was never called. Added
  stop call in UNSTACK_ALL section, consistent with mysql/rabbit
  handling.

These fixes ensure all services started by stack.sh are properly
stopped by unstack.sh, allowing clean restacking.

Generated-By: Cursor claude-opus-4.5
Change-Id: I8bcc6fe82264bb35a616dae39f4216ba6200b547
Signed-off-by: Sean Mooney <work@seanmooney.info>

lib/swift

@@ -838,6 +838,8 @@ function stop_swift {
     for type in proxy object container account; do
         stop_process s-${type}
     done
+    # Stop the container-sync daemon if it was started
+    stop_process s-container-sync
     # Blast out any stragglers
     pkill -f swift- || true
 }

unstack.sh

@@ -73,6 +73,7 @@ source $TOP_DIR/lib/neutron
 source $TOP_DIR/lib/ldap
 source $TOP_DIR/lib/dstat
 source $TOP_DIR/lib/atop
+source $TOP_DIR/lib/tcpdump
 source $TOP_DIR/lib/etcd3
 
 # Extras Source
@@ -162,6 +163,11 @@ if [[ -n "$UNSTACK_ALL" ]]; then
     if is_service_enabled rabbit; then
         stop_service rabbitmq-server
     fi
+
+    # Stop LDAP server
+    if is_service_enabled ldap; then
+        stop_ldap
+    fi
 fi
 
 if is_service_enabled neutron; then
@@ -178,6 +184,10 @@ if is_service_enabled openstack-cli-server; then
     stop_service devstack@openstack-cli-server
 fi
 
+if is_service_enabled tcpdump; then
+    stop_tcpdump
+fi
+
 stop_dstat
 
 if is_service_enabled atop; then