First step

2024-05-29 12:09:31 +02:00 · 2024-05-29 12:09:31 +02:00 · 36f5dde838
commit 36f5dde838
parent d1600c38c8
4 changed files with 123 additions and 0 deletions
--- a/curl.go
+++ b/curl.go
@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+)
+
+func curl(socket, method, path string) (io.ReadCloser, error) {
+	socketDial := func(proto, addr string) (conn net.Conn, err error) {
+		return net.Dial("unix", socket)
+	}
+
+	tr := &http.Transport{
+		Dial: socketDial,
+	}
+	client := &http.Client{
+		Transport: tr,
+	}
+
+	req, err := http.NewRequest(method, path, nil)
+	if err != nil {
+		return nil, fmt.Errorf("Error creating request: %w\n", err)
+	}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("Error performing request: %w\n", err)
+	}
+	return resp.Body, nil
+}
--- a/index.html
+++ b/index.html
@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Meetup Go</title>
+    <link href="/style.css" type="text/css" rel="stylesheet">
+  </head>
+  <body>
+    <h1>Meetup Go&nbsp;!</h1>
+    <table>
+      <thead>
+        <tr>
+          <th>CONTAINER ID</th>
+          <th>IMAGE</th>
+          <th>COMMAND</th>
+          <th>CREATED</th>
+          <th>STATUS</th>
+          <th>PORTS</th>
+          <th>NAMES</th>
+        </tr>
+      </thead>
+      <tbody id="containers">
+      </tbody>
+    </table>
+    <script>
+      fetch('/containers').then(
+        (res) => res.json()
+      ).then(
+        (containers) => {
+          document.getElementById('containers').innerHTML = '';
+          for (const container of containers) {
+            let div = document.createElement('tr');
+            div.innerHTML = `<td>${container.Id.substring(0, 8)}</td><td>${container.Image}</td><td>${container.Command}</td><td>${container.Created}</td><td>${container.Status}</td><td>${container.Ports.map((port) => port.PrivatePort + '/' + port.Type).join(" ")}</td><td>${container.Names.join(" ")}</td>`;
+            document.getElementById('containers').appendChild(div);
+          }
+        })
+    </script>
+  </body>
+</html>
--- a/main.go
+++ b/main.go
@ -0,0 +1,22 @@
+package main
+
+import (
+	"io"
+	"log"
+	"net/http"
+)
+
+func main() {
+	http.HandleFunc("GET /containers", func(w http.ResponseWriter, r *http.Request) {
+		rd, err := curl("/var/run/docker.sock", "GET", "http://d/v1.43/containers/json?all=true")
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		} else {
+			io.Copy(w, rd)
+		}
+	})
+
+	http.Handle("GET /", http.FileServer(http.Dir(".")))
+
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}
--- a/style.css
+++ b/style.css
@ -0,0 +1,31 @@
+body {
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    gap: .5rem;
+}
+
+h1 {
+    border-bottom: 5px double forestgreen;
+    flex-grow: 1;
+    text-align: center;
+    padding-bottom: .66rem;
+}
+
+table {
+    border-spacing:0;
+    border-collapse: collapse;
+}
+td, th {
+    padding: .5rem 0;
+    text-align: center;
+}
+tbody > tr {
+    border-top: 1px solid #222;
+}
+tbody > tr:nth-child(odd) {
+    background: #bbb;
+}
+tbody > tr:nth-child(even) {
+    background: #ddd;
+}