feat(node): adding node component

Cleaning up the repo

components/node/files/scripts/common.sh

@@ -0,0 +1,103 @@
+#!/bin/sh
+
+
+pingSentinel() {
+    svc=${VALKEY_HEADLESS_SERVICE:-"localhost"}
+
+    resp=$(timeout -s 15 $1 \
+        valkey-cli \
+        -h ${svc} \
+        -p $VALKEY_SENTINEL_PORT \
+        ping)
+    ret=${?}
+    echo $resp
+    return ${ret}
+}
+
+getPrimaryInfo() {
+    masterName=${VALKEY_MASTER_NAME:-"mymaster"}
+    it="${1:-0}"
+
+    info=$(valkey-cli --csv -h ${VALKEY_HEADLESS_SERVICE} -p ${VALKEY_SENTINEL_PORT} sentinel get-primary-addr-by-name "${masterName}"| \
+        awk -F ',' '{ gsub(/"/,"",$0); print $1 " " $2 }')
+
+    if [ -z "${info}" ]; then
+        echo "Failed to get primary info for master '${masterName}'"
+        it=$((it + 1))
+        getPrimaryInfo ${it}
+        if [ ${it} -ge 10 ]; then
+            echo "Failed to get primary info after 5 attempts"
+            return 1
+        fi
+    fi
+    if [[ "${info}" =~ /^NULL/ ]]; then
+        it=$((it + 1))
+        getPrimaryInfo ${it}
+        if [ ${it} -ge 10 ]; then
+            echo "Failed to get primary info after 5 attempts"
+            return 1
+        fi
+    fi
+    echo "${info}"
+    return ${?}
+}
+
+getSentinelMasterName() {
+    getPrimaryInfo | awk -F ' ' '{print $1}'
+}
+
+getFailOverStatus() {
+    # Check if the failover is finished
+    local failoverStatus
+    primaryInfo=$(getPrimaryInfo)
+    primaryHost=$(echo ${primaryInfo} | awk -F ' ' '{print $1}')
+    currentHost=$(hostname -f)
+    if [[ "${primaryHost}" != "${currentHost}" ]]; then
+        echo "Failover finished"
+        return 0
+    else
+        echo "Failover in progress"
+        return 1
+    fi
+}
+
+waitForSentinel() {
+    tout=60
+    while true; do
+        response=$(pingSentinel 5)
+        if [ "${response}" = "PONG" ]; then
+            echo "Sentinel is responding"
+            break
+            return 0
+        fi
+
+        echo "Sentinel is not responding [${response}]"
+        sleep 1
+        tout=$((tout - 1))
+        if [ "${tout}" -le 0 ]; then
+            echo "Sentinel ping timed out"
+            return 124
+        fi
+    done
+    sleep 10
+}
+
+sentinelIsMaster() {
+    # Check if the sentinel is master
+    primaryInfo=$(getPrimaryInfo)
+    primaryHost=$(echo ${primaryInfo} | awk -F ' ' '{print $1}')
+    currentHost=$(hostname -f)
+    if [[ "${primaryHost}" != "${currentHost}" ]]; then
+        echo "Sentinel is not master"
+        return 1
+    else
+        echo "Sentinel is master"
+        return 0
+    fi
+}
+
+sentinelReset() {
+    # Reset the sentinel
+    valkey-cli -h ${VALKEY_HEADLESS_SERVICE} -p ${VALKEY_SENTINEL_PORT} sentinel reset "${1}"
+    return $?
+}