docs(lab1): SSH commit signing, PR template, and submission notes

submissions/lab1.md

@@ -0,0 +1,82 @@
+# Lab 1 submission
+
+## Task 1
+
+### QuickNotes run `/health`, `/notes`, `POST /notes`
+
+```powershell
+PS C:\Users\danielpancake> curl -s http://localhost:8080/health | py -m json.tool
+{
+    "notes": 4,
+    "status": "ok"
+}
+
+PS C:\Users\danielpancake> curl -s http://localhost:8080/notes  | py -m json.tool
+[
+    {
+        "id": 1,
+        "title": "Welcome to QuickNotes",
+        "body": "This is the project you'll containerize, deploy, monitor, and harden across all 10 labs.",
+        "created_at": "2026-01-15T10:00:00Z"
+    },
+    {
+        "id": 2,
+        "title": "Read app/main.go first",
+        "body": "Start by understanding the entry point \u0432\u0402\u201d env vars, signal handling, graceful shutdown.",
+        "created_at": "2026-01-15T10:05:00Z"
+    },
+    {
+        "id": 3,
+        "title": "DevOps mantra",
+        "body": "If it hurts, do it more often.",
+        "created_at": "2026-01-15T10:10:00Z"
+    },
+    {
+        "id": 4,
+        "title": "Endpoint cheat-sheet",
+        "body": "GET /notes  GET /notes/{id}  POST /notes  DELETE /notes/{id}  GET /health  GET /metrics",
+        "created_at": "2026-01-15T10:15:00Z"
+    }
+]
+
+PS C:\Users\danielpancake> curl -s -X POST http://localhost:8080/notes -H 'Content-Type: application/json' -d '{"title":"hello","body":"first POST"}' | py -m json.tool
+{
+    "id": 5,
+    "title": "hello",
+    "body": "first POST",
+    "created_at": "2026-06-15T09:55:15.2678968Z"
+}
+```
+
+### Signed commit verification & Verified badge
+
+```powershell
+PS D:\Desktop\DevOps-Intro> git log --show-signature -1
+
+commit e3d2855371da8a8f0d6613c0140b20dac93cb803 (HEAD -> feature/lab1)
+Good "git" signature for 45727078+danielpancake@users.noreply.github.com with ED25519 key SHA256:9X3YQHiqrWoDjoaRwFmJ5YC04AAtZX8GDBNeS3atwEk
+Author: danielpancake <45727078+danielpancake@users.noreply.github.com>
+Date:   Mon Jun 15 15:02:53 2026 +0500
+
+    docs(lab1): start submission
+
+    Signed-off-by: danielpancake <45727078+danielpancake@users.noreply.github.com>
+```
+
+![Showing verified badge](image/lab1/1781518238214.png)
+
+### Why signed commits matter
+
+Signed commits use cryptographic signatures to verify who created a commit, helping reviewers trust the source of code changes and prevent impersonation. The `xz-utils` backdoor showed that even trusted contributors can introduce malicious code, but commit signing provides an auditable record of authorship and strengthens software supply-chain security.
+
+## Task 2
+
+The PR template was added to my fork's `main` at `.github/pull_request_template.md`
+
+## Task 3
+
+### GitHub Community
+
+**Why starring repositories matters:** Starring a repository helps you save projects you find useful and shows support for the people who maintain them. It also helps good open-source projects become more visible to others.
+
+**How following developers helps:** Following developers lets you see what they are building and contributing to, making it easier to discover useful projects, learn from others, and stay updated on your teammates' work.