From 6c82972f675fc5cbe6a2f17eed2c1a9ab42bf697 Mon Sep 17 00:00:00 2001
From: BlueBird <112836850+cbluebird@users.noreply.github.com>
Date: Thu, 15 Aug 2024 11:39:23 +0800
Subject: [PATCH] fix: check control plane count of master IPs (#4972)

---
 scripts/cloud/install.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/scripts/cloud/install.sh b/scripts/cloud/install.sh
index 8499915b4c8..3edce161f61 100644
--- a/scripts/cloud/install.sh
+++ b/scripts/cloud/install.sh
@@ -516,6 +516,22 @@ wait_cluster_ready() {
     done
 }
 
+check_control_plane_count() {
+    # Check if master_ips is empty
+    if [[ -z "$master_ips" ]]; then
+        return 0
+    fi
+    
+    IFS=',' read -r -a master_ips_array <<< "$master_ips"
+    num_ips=${#master_ips_array[@]}
+
+    # If the number is even, output an error message and exit
+    if (( num_ips % 2 == 0 )); then
+        echo "Error: The number of master IPs is even. Please provide an odd number of master IPs."
+        exit 1
+    fi
+}
+
 loading_animation() {
     local message="$1"
     local duration="${2:-0.5}"
@@ -659,6 +675,7 @@ done
 
 [[ $HELP == "" ]] || get_prompt "usage"
 [[ $HELP == "" ]] || exit 0
+check_control_plane_count
 set_language
 init
 collect_input