first commit

.gitignore

@@ -0,0 +1,32 @@
+# 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
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Code coverage profiles and other test artifacts
+*.out
+coverage.*
+*.coverprofile
+profile.cov
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
+go.work.sum
+
+# env file
+.env
+
+# Editor/IDE
+# .idea/
+# .vscode/

go.mod

@@ -0,0 +1,33 @@
+module simple-cluster-node
+
+go 1.25.6
+
+require (
+	github.com/google/uuid v1.6.0
+	github.com/gorilla/mux v1.8.1
+	github.com/moby/moby/client v0.2.1
+	gitlab.com/gdulai/simpleloglvl v0.0.0-20250930234204-a64d074990c1
+)
+
+require (
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/containerd/errdefs v1.0.0 // indirect
+	github.com/containerd/errdefs/pkg v0.3.0 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/go-connections v0.6.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/joho/godotenv v1.5.1
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/moby/api v1.52.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.1 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
+	go.opentelemetry.io/otel v1.35.0 // indirect
+	go.opentelemetry.io/otel/metric v1.35.0 // indirect
+	go.opentelemetry.io/otel/trace v1.35.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+)

go.sum

@@ -0,0 +1,67 @@
+github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
+github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=
+github.com/containerd/errdefs v1.0.0/go.mod h1:+YBYIdtsnF4Iw6nWZhJcqGSg/dwvV7tyJ/kCkyJ2k+M=
+github.com/containerd/errdefs/pkg v0.3.0 h1:9IKJ06FvyNlexW690DXuQNx2KA2cUJXx151Xdx3ZPPE=
+github.com/containerd/errdefs/pkg v0.3.0/go.mod h1:NJw6s9HwNuRhnjJhM7pylWwMyAkmCQvQ4GpJHEqRLVk=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk=
+github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
+github.com/docker/go-connections v0.6.0 h1:LlMG9azAe1TqfR7sO+NJttz1gy6KO7VJBh+pMmjSD94=
+github.com/docker/go-connections v0.6.0/go.mod h1:AahvXYshr6JgfUJGdDCs2b5EZG/vmaMAntpSFH5BFKE=
+github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
+github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
+github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
+github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+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/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
+github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
+github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
+github.com/moby/moby/api v1.52.0 h1:00BtlJY4MXkkt84WhUZPRqt5TvPbgig2FZvTbe3igYg=
+github.com/moby/moby/api v1.52.0/go.mod h1:8mb+ReTlisw4pS6BRzCMts5M49W5M7bKt1cJy/YbAqc=
+github.com/moby/moby/client v0.2.1 h1:1Grh1552mvv6i+sYOdY+xKKVTvzJegcVMhuXocyDz/k=
+github.com/moby/moby/client v0.2.1/go.mod h1:O+/tw5d4a1Ha/ZA/tPxIZJapJRUS6LNZ1wiVRxYHyUE=
+github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
+github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
+github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJwooC2xJA040=
+github.com/opencontainers/image-spec v1.1.1/go.mod h1:qpqAh3Dmcf36wStyyWU+kCeDgrGnAve2nCC8+7h8Q0M=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gitlab.com/gdulai/simpleloglvl v0.0.0-20250930234204-a64d074990c1 h1:9ATFMA3YgmTC92kZ33fw9VdsKf+Mqu+JqzlbXh7LZqE=
+gitlab.com/gdulai/simpleloglvl v0.0.0-20250930234204-a64d074990c1/go.mod h1:H7XPunUrSyAvPa9nx8UbKnThEQJDmj3mdt+9ZtqDth4=
+go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
+go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 h1:sbiXRNDSWJOTobXh5HyQKjq6wUC5tNybqjIqDpAY4CU=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0/go.mod h1:69uWxva0WgAA/4bu2Yy70SLDBwZXuQ6PbBpbsa5iZrQ=
+go.opentelemetry.io/otel v1.35.0 h1:xKWKPxrxB6OtMCbmMY021CqC45J+3Onta9MqjhnusiQ=
+go.opentelemetry.io/otel v1.35.0/go.mod h1:UEqy8Zp11hpkUrL73gSlELM0DupHoiq72dR+Zqel/+Y=
+go.opentelemetry.io/otel/metric v1.35.0 h1:0znxYu2SNyuMSQT4Y9WDWej0VpcsxkuklLa4/siN90M=
+go.opentelemetry.io/otel/metric v1.35.0/go.mod h1:nKVFgxBZ2fReX6IlyW28MgZojkoAkJGaE8CpgeAU3oE=
+go.opentelemetry.io/otel/sdk v1.35.0 h1:iPctf8iprVySXSKJffSS79eOjl9pvxV9ZqOWT0QejKY=
+go.opentelemetry.io/otel/sdk v1.35.0/go.mod h1:+ga1bZliga3DxJ3CQGg3updiaAJoNECOgJREo9KHGQg=
+go.opentelemetry.io/otel/sdk/metric v1.35.0 h1:1RriWBmCKgkeHEhM7a2uMjMUfP7MsOF5JpUCaEqEI9o=
+go.opentelemetry.io/otel/sdk/metric v1.35.0/go.mod h1:is6XYCUMpcKi+ZsOvfluY5YstFnhW0BidkR+gL+qN+w=
+go.opentelemetry.io/otel/trace v1.35.0 h1:dPpEfJu1sDIqruz7BHFG3c7528f6ddfSWfFDVt/xgMs=
+go.opentelemetry.io/otel/trace v1.35.0/go.mod h1:WUk7DtFp1Aw2MkvqGdwiXYDZZNvA/1J8o6xRXLrIkyc=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools/v3 v3.5.2 h1:7koQfIKdy+I8UTetycgUqXWSDwpgv193Ka+qRsmBY8Q=
+gotest.tools/v3 v3.5.2/go.mod h1:LtdLGcnqToBH83WByAAi/wiwSFCArdFIUV/xxN4pcjA=
+pgregory.net/rapid v1.2.0 h1:keKAYRcjm+e1F0oAuU5F5+YPAWcyxNNRK2wud503Gnk=
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health/health.go

@@ -0,0 +1,38 @@
+package health
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"runtime"
+)
+
+type HealthInfo struct {
+	Hostname string
+	OS       string
+	Arch     string
+	CPU      string
+	Memory   string
+}
+
+func Handle(w http.ResponseWriter, r *http.Request) {
+	json.NewEncoder(w).Encode(healthCheck())
+}
+
+func healthCheck() HealthInfo {
+	hostname, _ := os.Hostname()
+
+	var mem runtime.MemStats
+	runtime.ReadMemStats(&mem)
+
+	return HealthInfo{Hostname: hostname,
+		OS:     runtime.GOOS,
+		Arch:   runtime.GOARCH,
+		CPU:    string(runtime.NumCPU()),
+		Memory: string(mem.Alloc/1024/1024) + " MB"}
+}
+
+func (h HealthInfo) String() string {
+	return fmt.Sprintf("HealthInfo{Hostname=%s, OS=%s, Arch=%s. CPU=%s, Memory=%s}", h.Hostname, h.OS, h.Arch, h.CPU, h.Memory)
+}

main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"net/http"
+	"os"
+	"simple-cluster-node/router"
+
+	log "gitlab.com/gdulai/simpleloglvl"
+
+	"github.com/joho/godotenv"
+)
+
+func main() {
+	// Setup logs
+	log.SetupLogs()
+
+	log.LogInfo("Application starting...")
+
+	// Load env file
+	err := godotenv.Load()
+	if err != nil {
+		log.LogFatalError("Failed to load .env file")
+	}
+
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+
+	log.LogInfo("Application started on port %s", port)
+
+	r := router.SetupRouter()
+	http.ListenAndServe(":"+port, r)
+}

router/router.go

@@ -0,0 +1,82 @@
+package router
+
+import (
+	"context"
+	"net/http"
+	"os"
+	"simple-cluster-node/health"
+
+	"github.com/google/uuid"
+	"github.com/gorilla/mux"
+	log "gitlab.com/gdulai/simpleloglvl"
+)
+
+func SetupRouter() *mux.Router {
+	r := mux.NewRouter()
+	r.Use(identifyRequest, corsCheck, logRequest)
+	r.HandleFunc("/health", health.Handle).Methods("GET", "OPTIONS")
+
+	/*
+		r.HandleFunc("/album", handler.GetAlbums).Methods("GET", "OPTIONS")
+		r.HandleFunc("/album", handler.SaveAlbum).Methods("POST", "OPTIONS")
+		r.HandleFunc("/album/{albumId}", handler.DeleteAlbum).Methods("DELETE", "OPTIONS")
+		r.HandleFunc("/album/{albumId}", handler.GetAlbum).Methods("GET", "OPTIONS")
+		r.HandleFunc("/shareAlbum/{albumId}/{userId}", handler.ShareAlbum).Methods("POST", "OPTIONS")
+	*/
+
+	return r
+}
+
+func identifyRequest(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		requestId, err := uuid.NewRandom()
+		if err != nil {
+			log.LogInfo("Failed to generated requestId!")
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		log.LogInfo("Assigned UUID to request! (%s)", &requestId)
+		context := context.WithValue(r.Context(), "requestId", requestId)
+
+		log.LogDebug("Next handler called! (%s)", requestId)
+
+		next.ServeHTTP(w, r.WithContext(context))
+	})
+}
+
+func corsCheck(handler http.Handler) http.Handler {
+	origins := os.Getenv("CORS_ORIGINS")
+	methods := os.Getenv("CORS_METHODS")
+	header := os.Getenv("CORS_HEADERS")
+
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		requestId := r.Context().Value("requestId")
+
+		log.LogInfo("CORS check called... (%s)", requestId)
+
+		w.Header().Set("Access-Control-Allow-Origin", origins)
+		w.Header().Set("Access-Control-Allow-Methods", methods)
+		w.Header().Set("Access-Control-Allow-Headers", header)
+
+		if r.Method == http.MethodOptions {
+			log.LogInfo("Pre flight check OK! (%s)", requestId)
+
+			w.WriteHeader(http.StatusOK)
+			return
+		}
+
+		log.LogDebug("Next handler called! (%s)", requestId)
+		handler.ServeHTTP(w, r)
+	})
+}
+
+func logRequest(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		requestId := r.Context().Value("requestId")
+
+		log.LogInfo("%s %s %s from %s (%s)", r.Method, r.RequestURI, r.Proto, r.RemoteAddr, r.Context().Value("requestId"))
+		log.LogDebug("Next handler called! (%s)", requestId)
+
+		next.ServeHTTP(w, r)
+	})
+}