GoApp Added with Dockerfile

Abhinav-26 · Jun 28, 2021 · 15fb00e · 15fb00e
1 parent 551ae82
commit 15fb00e
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diff --git a/go-app/Dockerfile b/go-app/Dockerfile
@@ -0,0 +1,12 @@
+FROM golang:1.8.5-jessie
+
+RUN mkdir /go-app
+
+# create a working directory
+WORKDIR /go-app
+
+# add source code
+ADD . /go-app
+
+# run main.go
+CMD ["go", "run", "app.go"]
diff --git a/go-app/app.go b/go-app/app.go
@@ -0,0 +1,60 @@
+package main
+
+import (
+	"html/template"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+)
+
+// func handler(w http.ResponseWriter, r *http.Request) {
+// 	fmt.Fprintf(w, "Hi there, I love %s!", r.URL.Path[1:])
+// }
+
+func main() {
+	fs := http.FileServer(http.Dir("./static"))
+	http.Handle("/static/", http.StripPrefix("/static/", fs))
+
+	http.HandleFunc("/", serveTemplate)
+
+	log.Println("Listening on :8080...")
+	err := http.ListenAndServe(":8080", nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func serveTemplate(w http.ResponseWriter, r *http.Request) {
+	lp := filepath.Join("templates", "layout.html")
+	fp := filepath.Join("templates", filepath.Clean(r.URL.Path))
+
+	info, err := os.Stat(fp)
+	if err != nil {
+		if os.IsNotExist(err) {
+			http.NotFound(w, r)
+			return
+		}
+	}
+
+	// Return a 404 if the request is for a directory
+	if info.IsDir() {
+		http.NotFound(w, r)
+		return
+	}
+
+	tmpl, err := template.ParseFiles(lp, fp)
+	if err != nil {
+		// Log the detailed error
+		log.Println(err.Error())
+		// Return a generic "Internal Server Error" message
+		http.Error(w, http.StatusText(500), 500)
+		return
+	}
+
+	err = tmpl.ExecuteTemplate(w, "layout", nil)
+	if err != nil {
+		log.Println(err.Error())
+		http.Error(w, http.StatusText(500), 500)
+	}
+}
diff --git a/go-app/static/css/style.css b/go-app/static/css/style.css
@@ -0,0 +1,41 @@
+body{
+    background-color:aliceblue;
+    padding: 2rem;
+}
+
+/* DEMO-SPECIFIC STYLES */
+.typewriter{
+    margin-bottom: 20px;
+}
+.typewriter h1 {
+    color: #333;
+    text-align: center;
+    font-family: monospace;
+    overflow: hidden; /* Ensures the content is not revealed until the animation */
+    white-space: nowrap; /* Keeps the content on a single line */
+    margin: 0 auto; /* Gives that scrolling effect as the typing happens */
+    letter-spacing: .15em; /* Adjust as needed */
+    animation: 
+      typing 3.5s steps(30, end),
+      blink-caret .5s step-end infinite;
+  }
+
+  /* The typing effect */
+  @keyframes typing {
+    from { width: 0 }
+    to { width: 100% }
+  }
+
+  /* The typewriter cursor effect */
+  @keyframes blink-caret {
+    from, to { border-color: transparent }
+    50% { border-color: rgb(0, 217, 255) }
+  }
+
+  img{
+    display: block;
+    margin-left: auto;
+    margin-right: auto;
+    width: 80%;
+  }
+
diff --git a/go-app/static/images/hello_world.png b/go-app/static/images/hello_world.png
diff --git a/go-app/templates/index.html b/go-app/templates/index.html
@@ -0,0 +1,9 @@
+{{define "title"}}Go Web Template{{end}}
+
+{{define "body"}}
+<div class="typewriter">
+    <h1>Hello World! Welcome to the Go Application!</h1>
+</div>
+
+<img src="/static/images/hello_world.png" alt="Hello World">
+{{end}}
diff --git a/go-app/templates/layout.html b/go-app/templates/layout.html
@@ -0,0 +1,17 @@
+{{define "layout"}}
+<!doctype html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>GoWebTemplate</title>
+  <link rel="stylesheet" href="/static/css/style.css">
+</head>
+<body>
+    <div class="typewriter">
+        <h1>Hello World! Welcome to the Go Application!</h1>
+    </div>
+
+    <img src="/static/images/hello_world.png" alt="Hello World">
+</body>
+</html>
+{{end}}