working version of metrics

.github/workflows/build.yml

@@ -16,9 +16,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: '1.20'
+        go-version: '1.22.5'
 
     - name: Build
-      run: cd src
-          | go mod tidy
-          | go build -v *.go
+      run: cd src && go mod tidy && go build -v

.gitignore

@@ -1,16 +1 @@
-# created by virtualenv automatically
-Lib
-Scripts
-include
-lib
-local
-pyvenv.cfg
-share
-
-**/.pytest_cache/
-
-*.pem
-*.env
-
-
-**/__pycache__
+*.exe

Dockerfile

@@ -4,4 +4,8 @@ WORKDIR /app
 
 COPY ./src /app
 
-CMD ["go", "run", "main.go"]
+RUN go mod tidy
+
+RUN go build -o main main.go utils.go
+
+CMD ["./main"]

src/go.mod

@@ -0,0 +1,14 @@
+module server
+
+go 1.22.5
+
+require github.com/shirou/gopsutil v3.21.11+incompatible
+
+require (
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.14 // indirect
+	github.com/tklauser/numcpus v0.8.0 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
+	golang.org/x/sys v0.23.0 // indirect
+)

src/go.sum

@@ -0,0 +1,21 @@
+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/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+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/shirou/gopsutil v3.21.11+incompatible h1:+1+c1VGhc88SSonWP6foOcLhvnKlUeu/erjjvaPEYiI=
+github.com/shirou/gopsutil v3.21.11+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/tklauser/go-sysconf v0.3.14 h1:g5vzr9iPFFz24v2KZXs/pvpvh8/V9Fw6vQK5ZZb78yU=
+github.com/tklauser/go-sysconf v0.3.14/go.mod h1:1ym4lWMLUOhuBOPGtRcJm7tEGX4SCYNEEEtghGG/8uY=
+github.com/tklauser/numcpus v0.8.0 h1:Mx4Wwe/FjZLeQsK/6kt2EOepwwSl7SmJrK5bV/dXYgY=
+github.com/tklauser/numcpus v0.8.0/go.mod h1:ZJZlAY+dmR4eut8epnzf0u/VwodKmryxR8txiloSqBE=
+github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
+github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.23.0 h1:YfKFowiIMvtgl1UERQoTPPToxltDeZfbj4H7dVUCwmM=
+golang.org/x/sys v0.23.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

src/main.go

@@ -5,16 +5,17 @@ import (
 	"net/http"
 )
 
-type healthcheckHandler struct{}
-
-func (h *healthcheckHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	w.Header().Set("content-type", "text/plain")
+type metricsHandler struct {
+}
 
+func (h *metricsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("content-type", "application/json")
 	switch {
 	case r.Method == http.MethodGet:
-		msg := []byte("hello there")
-		w.WriteHeader(http.StatusOK)
-		w.Write(msg)
+		metrics := getStatus(r)
+		html := generateServerStatusHTML(metrics)
+		w.Header().Set("Content-Type", "text/html")
+		w.Write([]byte(html))
 		return
 	default:
 		return
@@ -23,7 +24,8 @@ func (h *healthcheckHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 func main() {
 	mux := http.NewServeMux()
-	mux.Handle("/", &healthcheckHandler{})
+
+	mux.Handle("/", &metricsHandler{})
 
 	log.Fatal(http.ListenAndServe("0.0.0.0:8001", mux))
 }

src/utils.go

@@ -0,0 +1,148 @@
+package main
+
+import (
+	"fmt"
+	"net"
+	"net/http"
+	"time"
+
+	"github.com/shirou/gopsutil/cpu"
+	"github.com/shirou/gopsutil/mem"
+)
+
+type ServerMetrics struct {
+	Host        string
+	Timestamp   string
+	CPUUsage    string
+	MemoryUsage string
+}
+
+func getStatus(r *http.Request) ServerMetrics {
+	// Get the client IP address
+	ip, _, _ := net.SplitHostPort(r.RemoteAddr)
+
+	// Get the current timestamp in ISO 8601 format
+	time := time.Now().UTC().Format(time.RFC3339)
+
+	// Get CPU and Memory usage
+	cpuUsage, _ := cpu.Percent(0, false)
+	memoryUsage, _ := mem.VirtualMemory()
+
+	return ServerMetrics{
+		Host:        ip,
+		Timestamp:   time,
+		CPUUsage:    fmt.Sprintf("%.2f %%", cpuUsage[0]),
+		MemoryUsage: fmt.Sprintf("%.2f %%", memoryUsage.UsedPercent),
+	}
+}
+
+func formatTimestamp(timestamp string) string {
+	return timestamp[11:19] + " (UTC)"
+}
+
+func generateServerStatusHTML(metrics ServerMetrics) string {
+	return fmt.Sprintf(`
+<!DOCTYPE html>
+<html lang=en>
+<head>
+	<meta charset=UTF-8>
+	<meta name=viewport content=width=device-width, initial-scale=1.0>
+	<style>
+		@import url('https://fonts.googleapis.com/css?family=Open+Sans&display=swap');
+		html {
+			position: relative;
+			overflow-x: hidden !important;
+		}
+		* {
+			box-sizing: border-box;
+		}
+		body {
+			font-family: 'Open Sans', sans-serif;
+			color: #324e63;
+		}
+		a {
+			color: inherit;
+			text-decoration: inherit;
+		}
+		.wrapper {
+			width: 100%%;
+			width: 100%%;
+			height: auto;
+			min-height: 90vh;
+			padding: 50px 20px;
+			padding-top: 100px;
+			display: flex;
+		}
+		.instance-card {
+			width: 100%%;
+			min-height: 380px;
+			margin: auto;
+			box-shadow: 12px 12px 2px 1px rgba(13, 28, 39, 0.4);
+			background: #fff;
+			border-radius: 15px;
+			border-width: 1px;
+			max-width: 500px;
+			position: relative;
+			border: thin groove #9c83ff;
+		}
+		.instance-card__cnt {
+			margin-top: 35px;
+			text-align: center;
+			padding: 0 20px;
+			padding-bottom: 40px;
+			transition: all .3s;
+		}
+		.instance-card__name {
+			font-weight: 700;
+			font-size: 24px;
+			color: #6944ff;
+			margin-bottom: 15px;
+		}
+		.instance-card-inf__item {
+			padding: 10px 35px;
+			min-width: 150px;
+		}
+		.instance-card-inf__title {
+			font-weight: 700;
+			font-size: 27px;
+			color: #324e63;
+		}
+		.instance-card-inf__txt {
+			font-weight: 500;
+			margin-top: 7px;
+		}
+		.secondary {
+			color: #9c83ff;
+		}
+	</style>
+	<title>😈️ pointless-status 😈</title>
+</head>
+<body>
+	<div class=wrapper>
+		<div class=instance-card>
+			<div class=instance-card__cnt>
+				<div class=instance-card__name>😈️ Server is running! 😈️</div>
+				<div class=instance-card-inf>
+					<div class=instance-card-inf__item>
+						<div class=instance-card-inf__txt>Client</div>
+						<div class=instance-card-inf__title>%s</div>
+					</div>
+					<div class=instance-card-inf__item>
+						<div class=instance-card-inf__txt>Time</div>
+						<div class=instance-card-inf__title>%s</div>
+					</div>
+					<div class=instance-card-inf__item>
+						<div class=instance-card-inf__txt>CPU Usage</div>
+						<div class=instance-card-inf__title>%s</div>
+					</div>
+					<div class=instance-card-inf__item>
+						<div class=instance-card-inf__txt>Memory usage</div>
+						<div class=instance-card-inf__title>%s</div>
+					</div>
+				</div>
+			</div>
+		</div>
+</body>
+</html>
+	`, metrics.Host, formatTimestamp(metrics.Timestamp), metrics.CPUUsage, metrics.MemoryUsage)
+}