never pick previous vpn

Dockers/gluetun-pia-wireguard-rotator/rotate.sh

@@ -27,8 +27,16 @@ parse_regions() {
   tr ',' '\n' <<<"$raw" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | awk 'NF'
 }
 
+read_previous_region() {
+  local state_path="${ROTATOR_STATE_PATH:-/config/rotator-state.json}"
+  if [[ ! -f "$state_path" ]]; then
+    return 0
+  fi
+  jq -r '.region // empty' "$state_path" 2>/dev/null || true
+}
+
 pick_random_region() {
-  local regions=()
+  local regions=() previous candidates=()
   while IFS= read -r region; do
     [[ -n "$region" ]] && regions+=("$region")
   done < <(parse_regions)
@@ -38,7 +46,24 @@ pick_random_region() {
     exit 2
   fi
 
-  printf '%s\n' "${regions[@]}" | shuf -n 1
+  previous="$(read_previous_region)"
+  if [[ -n "$previous" ]]; then
+    for region in "${regions[@]}"; do
+      [[ "$region" == "$previous" ]] && continue
+      candidates+=("$region")
+    done
+  fi
+
+  if [[ "${#candidates[@]}" -eq 0 ]]; then
+    if [[ -n "$previous" && "${#regions[@]}" -eq 1 ]]; then
+      log "Only one region configured; reusing previous: $previous"
+    fi
+    candidates=("${regions[@]}")
+  else
+    log "Excluding previous region: $previous"
+  fi
+
+  printf '%s\n' "${candidates[@]}" | shuf -n 1
 }
 
 parse_additional_restart_containers() {