feat(node): adding all in one node support

resources/node/files/scripts/pre-stop.sh

@@ -0,0 +1,73 @@
+#!/bin/sh
+
+# Run Valkey command
+vcli() {
+    valkey-cli -h 127.0.0.1 -p "${VALKEY_PORT}" "$@"
+    return $?
+}
+
+# Run Sentinel command
+vcli-sentinel() {
+    valkey-cli -h "$VALKEY_SERVICE" -p "$VALKEY_SENTINEL_PORT" sentinel "$@"
+    return $?
+}
+
+getFailOverStatus() {
+    # Check if the failover is finished
+    local failoverStatus
+    primaryInfo=$(vcli-sentinel get-primary-addr-by-name "mymaster")
+    primaryHost=$(echo ${primaryInfo} | awk -F ' ' '{print $1}')
+    currentHost=$(hostname -f)
+    if [[ "${primaryHost}" != "${currentHost}" ]]; then
+        echo "I'm not the primary, failover finished"
+        return 0
+    else
+        echo "Failover in progress"
+        return 1
+    fi
+}
+
+getRole() {
+    # Get the role of the current node
+    VALKEY_ROLE=$(vcli role | head -1)
+    echo "${VALKEY_ROLE}"
+}
+
+isPrimary() {
+    # Check if the current node is the primary
+    role=$(getRole)
+    if [ "${role}" = "master" ]; then
+        echo "I'm the master"
+    else
+        echo "I'm not the master, I'm a ${role}"
+    fi
+}
+
+if isPrimary && ! getFailOverStatus; then
+    echo "I'm the primary and you are stopping me, pausing client connections"
+    #Pausing write connections to avoid data loss"
+    vcli CLIENT PAUSE "22000" WRITE
+
+    echo "Starting failover"
+    vcli-sentinel failover "mymaster"
+    echo "Waiting for sentinel to complete failover for up to 120s"
+    tmout=120
+    while true ; do
+        echo "I'm the primary pod and you are stopping me. Starting sentinel failover"
+        getFailOverStatus
+        if [ $? -eq 0 ]; then
+            echo "Primary has been successfully failed over to a different pod."
+            break
+        fi
+        echo "Waiting for failover to finish..."
+
+        sleep 1
+        tmout=$((tmout - 1))
+        if [ "${tmout}" -le 0 ]; then
+            echo "Failover timed out"
+            exit 1
+        fi
+    done
+fi
+
+exit 0