11 timeout the pubip env variable set in container

Dockerfile

@@ -1,11 +1,11 @@
-FROM golang:1.22.1-alpine3.19 as build
+FROM golang:1.23.1-alpine3.20 as build
 ARG OS
 ARG ARCH
 COPY . /build/
 WORKDIR /build
 RUN go mod download && go build -o ncddns
 
-FROM alpine:3.19
+FROM alpine:3.20
 ARG VERSION
 ARG user=ncddns
 ARG group=ncddns

docker-build.sh

@@ -1,5 +1,12 @@
 #!/ussr/bin/env bash
 
+if [ $# -ne 1 ]; then
+    echo "Exactly one argument required"
+    echo "bash docker-build.sh VERSION"
+    echo "  e.g. bash docker-build.sh 1.3.0"
+    exit 1
+fi
+
 docker buildx create --use --name mybuild
-docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 -t linuxshots/namecheap-ddns:1.2.0 --push --pull .
+docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 -t linuxshots/namecheap-ddns:$1 --push --pull .
 docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 -t linuxshots/namecheap-ddns:latest --push --pull .

go.mod

@@ -1,3 +1,3 @@
 module github.com/navilg/namecheap-ddns-docker
 
-go 1.22
+go 1.23

main.go

@@ -13,6 +13,7 @@ func main() {
 	domain := flag.String("domain", "", "Domain name e.g. example.com")
 	host := flag.String("host", "", "Subdomain or hostname e.g. www")
 	password := flag.String("password", "", "Dynamic DNS Password from Namecheap")
+	// iPCacheTimeOutSeconds := flag.Int("ip-cache-timeout", 86400, "IP cache timeout in seconds.")
 
 	flag.Parse()
 	if *domain == "" || *host == "" || *password == "" {

model.go

@@ -15,8 +15,10 @@ func (err *CustomError) Error() string {
 }
 
 var (
-	version          string        = "1.2.0-go1.22"
+	version          string        = "1.3.0-go1.23"
 	daemon_poll_time time.Duration = 1 * time.Minute // Time in minute
 	gitrepo          string        = "https://github.com/navilg/namecheap-ddns-docker"
 	httpTimeout      time.Duration = 30 * time.Second
+	expiryTime       float64       = 86400 // Ip env timeout in seconds (24hrs.)
+	// expiryTime float64 = 600
 )

updaterecord.go

@@ -33,9 +33,28 @@ func updateRecord(domain, host, password string) {
 				}
 
 				currentIp := os.Getenv("NC_PUB_IP")
+				lastIpUpdatedStr := os.Getenv("NC_PUB_IP_TIME")
+				var lastIpUpdatedDuration float64
 
-				if currentIp == pubIp {
-					DDNSLogger(InformationLog, host, domain, "DNS record is same as current IP. "+pubIp)
+				fmt.Println(lastIpUpdatedStr)
+				lastIpUpdated, err := time.Parse("2006-01-02 15:04:05", lastIpUpdatedStr)
+				if err != nil {
+					DDNSLogger(WarningLog, host, domain, "Not able to fetch last IP updated time. "+err.Error())
+					lastIpUpdatedDuration = 0
+				} else {
+					currentTime := time.Now().Format("2006-01-02 15:04:05")
+					currentTimeF, err := time.Parse("2006-01-02 15:04:05", currentTime)
+					if err != nil {
+						DDNSLogger(WarningLog, host, domain, "Not able to fetch last IP updated time. "+err.Error())
+						lastIpUpdatedDuration = 0
+					} else {
+						lastIpUpdatedDuration = currentTimeF.Sub(lastIpUpdated).Seconds()
+					}
+				}
+
+				if currentIp == pubIp && lastIpUpdatedDuration < expiryTime {
+					// If currentIp is same as whats set in env var NC_PUB_IP AND last time IP updated in NC was less than 24 hrs ago.
+					DDNSLogger(InformationLog, host, domain, "DNS record is same as current IP "+pubIp+". Last record update request made "+fmt.Sprintf("%f", lastIpUpdatedDuration)+" seconds ago.")
 				} else {
 					err = setDNSRecord(host, domain, password, pubIp)
 					if err != nil {
@@ -178,7 +197,10 @@ func setDNSRecord(host, domain, password, pubIp string) error {
 		return &CustomError{ErrorCode: -1, Err: errors.New(interfaceResponse.Errors.Err1)}
 	}
 
+	currentTime := time.Now()
+
 	os.Setenv("NC_PUB_IP", pubIp)
+	os.Setenv("NC_PUB_IP_TIME", currentTime.Format("2006-01-02 15:04:05"))
 
 	return nil
 }