simple ping/pong HTTP server

bsnux · bsnux · commit cd4b6ef4b0c3 · 2021-03-18T21:32:59.000-07:00
diff --git a/pinghtml/Dockerfile b/pinghtml/Dockerfile
@@ -0,0 +1,11 @@
+FROM golang:1.14.1 as builder
+ENV NAME "pinghtml"
+WORKDIR /opt
+COPY . .
+RUN GOOS=linux CGO_ENABLED=0 go build -o bin/$NAME main.go
+
+FROM alpine:3.11.5
+RUN apk --no-cache add ca-certificates
+WORKDIR /opt
+COPY --from=builder /opt/bin/$NAME .
+CMD ["/opt/pinghtml"]
diff --git a/pinghtml/go.mod b/pinghtml/go.mod
@@ -0,0 +1,3 @@
+module pinghtml
+
+go 1.14
diff --git a/pinghtml/main.go b/pinghtml/main.go
@@ -0,0 +1,21 @@
+// Simple web server listening on port 8080
+//
+// Launch this program, open a new terminal, then type:
+// `curl -L http://localhost:8080`
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+)
+
+func handler(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "<html><body>pong</body></html>")
+}
+
+func main() {
+	http.HandleFunc("/", handler)
+	log.Println("Starting server...")
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}
