Remove tests (#4)

Dockerfile

@@ -9,7 +9,7 @@ WORKDIR /app
 
 COPY main.go .
 
-RUN go mod init gke-info-go
+RUN go mod init gke-info
 RUN go mod tidy
 RUN go build -o main .
 

README.md

@@ -1,59 +1,83 @@
 # GKE Info Go
 
-[![Docker Build and Test](https://github.com/osinfra-io/gke-info-go/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/osinfra-io/gke-info-go/actions/workflows/build-and-test.yml)
+[![Docker Build and Test](https://github.com/osinfra-io/gke-info-go/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/osinfra-io/gke-info-go/actions/workflows/build-and-test.yml) [![Docker Build and Push](https://github.com/osinfra-io/gke-info-go/actions/workflows/build-and-push.yml/badge.svg)](https://github.com/osinfra-io/gke-info-go/actions/workflows/build-and-push.yml)
 
 ## Usage
 
 ```yaml
+---
+apiVersion: v1
+kind: Namespace
+
+metadata:
+  name: gke-info
+
+---
 apiVersion: apps/v1
 kind: Deployment
+
 metadata:
   name: gke-info-go
   namespace: gke-info
+
 spec:
   replicas: 1
   selector:
     matchLabels:
       app: gke-info-go
-      version: v1
+
   template:
     metadata:
       labels:
         app: gke-info-go
-        version: v1
+
     spec:
       containers:
-      - image: ghcr.io/osinfra-io/gke-info-go:latest
-        imagePullPolicy: IfNotPresent
-        name: gke-info-go
-        ports:
-        - containerPort: 8080
-      imagePullSecrets:
-       - name: github-container-registry-key
+        - image: ghcr.io/osinfra-io/gke-info-go:latest
+          imagePullPolicy: Always
+          name: gke-info-go
 
----
+          ports:
+            - containerPort: 8080
+
+          resources:
+            limits:
+              cpu: "50m"
+              memory: "128Mi"
+            requests:
+              cpu: "25m"
+              memory: "64Mi"
 
+---
 apiVersion: v1
 kind: Service
+
 metadata:
   name: gke-info-go
   namespace: gke-info
+
   labels:
     app: gke-info-go
+
 spec:
   ports:
-  - name: http
-    port: 8080
-    targetPort: 8080
+    - name: http
+      port: 8080
+      targetPort: 8080
+
   selector:
     app: gke-info-go
 
 ```
 
-After deploying the above, you can check the status of the cluster by running:
+After deploying, you can get the information about the GKE cluster by running the following command:
 
 ```bash
 kubectl port-forward --namespace gke-info $(kubectl get pod --namespace gke-info --selector="app=gke-info-go" --output jsonpath='{.items[0].metadata.name}') 8080:8080
 ```
 
-Open your browser to <http://localhost:8080/cluster-name> and you should see the name of the cluster.
+Curl the endpoint:
+
+```bash
+curl http://localhost:8080/gke-info
+```

go.mod

@@ -1,4 +1,4 @@
-module gke-info-go
+module gke-info
 
 go 1.22.3
 

main.go

@@ -1,84 +1,78 @@
 package main
 
 import (
-	"fmt"
-	"gopkg.in/DataDog/dd-trace-go.v1/profiler"
-	"io"
-	"log"
-	"net/http"
-	"os"
+        "fmt"
+        "gopkg.in/DataDog/dd-trace-go.v1/profiler"
+        "io"
+        "log"
+        "net/http"
+        "os"
 )
 
-func getClusterInfo(w http.ResponseWriter, _ *http.Request, client *http.Client) {
-	// Check if client is nil
-	if client == nil {
-		http.Error(w, "HTTP client is nil: cannot proceed with metadata retrieval", http.StatusInternalServerError)
-		return
-	}
+func getClusterInfo(w http.ResponseWriter, r *http.Request) {
+        // GCP metadata URL to retrieve the GKE cluster name
+        metadataURL := "http://metadata.google.internal/computeMetadata/v1/instance/attributes/cluster-name"
 
-	// GCP metadata URL to retrieve the GKE cluster name
-	metadataURL := "http://metadata.google.internal/computeMetadata/v1/instance/attributes/cluster-name"
+        // Set the metadata request headers
+        req, err := http.NewRequest("GET", metadataURL, nil)
+        if err != nil {
+                http.Error(w, fmt.Sprintf("Error creating request: %v", err), http.StatusInternalServerError)
+                return
+        }
+        req.Header.Set("Metadata-Flavor", "Google")
 
-	// Set the metadata request headers
-	req, err := http.NewRequest("GET", metadataURL, nil)
-	if err != nil {
-		http.Error(w, fmt.Sprintf("Error creating request: %v", err), http.StatusInternalServerError)
-		return
-	}
-	req.Header.Set("Metadata-Flavor", "Google")
+        // Send the request to the metadata server
+        client := &http.Client{}
+        resp, err := client.Do(req)
+        if err != nil {
+                http.Error(w, fmt.Sprintf("Error retrieving metadata: %v", err), http.StatusInternalServerError)
+                return
+        }
+        defer resp.Body.Close()
 
-	// Send the request to the metadata server
-	resp, err := client.Do(req)
-	if err != nil {
-		http.Error(w, fmt.Sprintf("Error retrieving metadata: %v", err), http.StatusInternalServerError)
-		return
-	}
-	defer resp.Body.Close()
+        // Check the response status code
+        if resp.StatusCode != http.StatusOK {
+                http.Error(w, fmt.Sprintf("Error retrieving metadata, status code: %d", resp.StatusCode), http.StatusInternalServerError)
+                return
+        }
 
-	// Check the response status code
-	if resp.StatusCode != http.StatusOK {
-		http.Error(w, fmt.Sprintf("Error retrieving metadata, status code: %d", resp.StatusCode), http.StatusInternalServerError)
-		return
-	}
+        // Set the Content-Type header to JSON
+        w.Header().Set("Content-Type", "application/json")
 
-	// Set the Content-Type header to JSON
-	w.Header().Set("Content-Type", "application/json")
-
-	// Copy the response from the metadata server to the output
-	_, err = io.Copy(w, resp.Body)
-	if err != nil {
-		http.Error(w, fmt.Sprintf("Error writing response: %v", err), http.StatusInternalServerError)
-		return
-	}
+        // Copy the response from the metadata server to the output
+        _, err = io.Copy(w, resp.Body)
+        if err != nil {
+                http.Error(w, fmt.Sprintf("Error writing response: %v", err), http.StatusInternalServerError)
+                return
+        }
 }
 
 func main() {
-	err := profiler.Start(
-		profiler.WithProfileTypes(
-			profiler.CPUProfile,
-			profiler.HeapProfile,
+        err := profiler.Start(
+                profiler.WithProfileTypes(
+                        profiler.CPUProfile,
+                        profiler.HeapProfile,
+
+                        // The profiles below are disabled by
+                        // default to keep overhead low, but
+                        // can be enabled as needed.
 
-			// The profiles below are disabled by
-			// default to keep overhead low, but
-			// can be enabled as needed.
-			// profiler.BlockProfile,
-			// profiler.MutexProfile,
-			// profiler.GoroutineProfile,
-		),
-	)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer profiler.Stop()
+                        // profiler.BlockProfile,
+                        // profiler.MutexProfile,
+                        // profiler.GoroutineProfile,
+                ),
+        )
+        if err != nil {
+                log.Fatal(err)
+        }
+        defer profiler.Stop()
 
-	http.HandleFunc("/gke-info", func(w http.ResponseWriter, r *http.Request) {
-		getClusterInfo(w, r, nil)
-	})
+        http.HandleFunc("/gke-info", getClusterInfo)
 
-	port := "8080"
-	if envPort := os.Getenv("PORT"); envPort != "" {
-		port = envPort
-	}
+        port := "8080"
+        if envPort := os.Getenv("PORT"); envPort != "" {
+                port = envPort
+        }
 
-	http.ListenAndServe(fmt.Sprintf(":%s", port), nil)
+        http.ListenAndServe(fmt.Sprintf(":%s", port), nil)
 }