feat: init

valkey/.env.example

@@ -0,0 +1 @@
+VALKEY_URL=valkey://default@127.0.0.1:6379

valkey/.gitignore

@@ -1,3 +1,7 @@
+.idea
+
+
+
 # If you prefer the allow list template instead of the deny list, see community template:
 # https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
 #

valkey/Dockerfile

@@ -0,0 +1,40 @@
+ARG GO_VERSION=1.24.10
+FROM --platform=$BUILDPLATFORM golang:${GO_VERSION} AS build
+WORKDIR /src
+
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    --mount=type=bind,source=go.sum,target=go.sum \
+    --mount=type=bind,source=go.mod,target=go.mod \
+    go mod download -x
+
+ARG TARGETARCH
+
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    --mount=type=bind,target=. \
+    CGO_ENABLED=0 GOARCH=$TARGETARCH go build -o /bin/server .
+
+FROM alpine:latest AS final
+
+RUN --mount=type=cache,target=/var/cache/apk \
+    apk --update add \
+        ca-certificates \
+        tzdata \
+        && \
+        update-ca-certificates
+
+ARG UID=10001
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    appuser
+USER appuser
+
+COPY --from=build /bin/server /bin/
+
+EXPOSE 1999
+
+ENTRYPOINT [ "/bin/server" ]

valkey/go.mod

@@ -0,0 +1,12 @@
+module github.com/tiennm99/valkey-keepalive
+
+go 1.23.12
+
+toolchain go1.24.10
+
+require (
+	github.com/joho/godotenv v1.5.1
+	github.com/valkey-io/valkey-go v1.0.68
+)
+
+require golang.org/x/sys v0.31.0 // indirect

valkey/go.sum

@@ -0,0 +1,16 @@
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/onsi/gomega v1.36.2 h1:koNYke6TVk6ZmnyHrCXba/T/MoLBXFjeC1PtvYgw0A8=
+github.com/onsi/gomega v1.36.2/go.mod h1:DdwyADRjrc825LhMEkD76cHR5+pUnjhUN8GlHlRPHzY=
+github.com/valkey-io/valkey-go v1.0.68 h1:bTbfonp49b41DqrF30q+y2JL3gcbjd2IiacFAtO4JBA=
+github.com/valkey-io/valkey-go v1.0.68/go.mod h1:bHmwjIEOrGq/ubOJfh5uMRs7Xj6mV3mQ/ZXUbmqpjqY=
+golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
+golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
+golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
+golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
+golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

valkey/main.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/joho/godotenv"
+	"github.com/valkey-io/valkey-go"
+)
+
+func main() {
+	if err := godotenv.Load(); err != nil {
+		log.Println("Warning: .env file not found")
+	}
+
+	valkeyUrl, isExist := os.LookupEnv("VALKEY_URL")
+	if !isExist {
+		log.Fatal("Warning: VALKEY_URL not set!")
+		return
+	}
+
+	opt, err := valkey.ParseURL(valkeyUrl)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	client, err := valkey.NewClient(opt)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+
+	go func() {
+		ticker := time.NewTicker(time.Minute)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ticker.C:
+				if err := incrementCounter(ctx, client); err != nil {
+					log.Printf("Keepalive increment error: %v", err)
+				}
+			case <-ctx.Done():
+				return
+			}
+		}
+	}()
+
+	defer func() {
+		cancel()
+		client.Close()
+	}()
+
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
+	<-sigCh
+}
+
+func incrementCounter(ctx context.Context, client valkey.Client) error {
+	ctx, cancel := context.WithTimeout(ctx, 3*time.Second)
+	defer cancel()
+
+	increment, err := client.Do(ctx, client.B().Incr().Key("counter").Build()).AsInt64()
+	if err != nil {
+		return err
+	}
+	log.Printf("Counter : %d\n", increment)
+	return nil
+}