more updates

.env.example

@@ -3,3 +3,15 @@
 DOCKER_REGISTRY=docker.io
 DOCKER_IMAGE=myorg/myapp
 IMAGE_TAG=latest
+
+# Required for authentication
+SECRET_KEY=<random-32-byte-hex>
+ADMIN_USER=admin # change this in production
+ADMIN_PASSWORD=admin # change this in production
+
+# Optional: check retention (limits DB growth)
+# CHECK_RETENTION_COUNT=5000   # keep last N checks per service (default 5000)
+# CHECK_RETENTION_DAYS=30      # also delete checks older than N days (0=disabled)
+
+# Rollup: aggregate checks older than N hours into hourly buckets for 90+ day reporting
+# ROLLUP_AGE_HOURS=24          # default 24; raw checks kept for this long, then rolled up

.gitignore

@@ -1,4 +1,5 @@
 .env
 *.pyc
 __pycache__/
-monitor.db
+monitor.db
+data/monitor.db

.venv/bin/python

@@ -0,0 +1 @@
+python3

.venv/bin/python3

@@ -0,0 +1 @@
+/usr/bin/python3

.venv/bin/python3.12

@@ -0,0 +1 @@
+python3

.venv/lib64

@@ -0,0 +1 @@
+lib

.venv/pyvenv.cfg

@@ -0,0 +1,5 @@
+home = /usr/bin
+include-system-site-packages = false
+version = 3.12.3
+executable = /usr/bin/python3.12
+command = /usr/bin/python3 -m venv /home/ryanv/jenkins-docker-deploy-example/.venv

Dockerfile

@@ -13,6 +13,12 @@ COPY app/ app/
 COPY templates/ templates/
 COPY static/ static/
 
+# Run as non-root user
+RUN addgroup --system --gid 1000 appgroup && \
+    adduser --system --uid 1000 --gid 1000 --no-create-home appuser
+RUN chown -R appuser:appgroup /app
+USER appuser
+
 EXPOSE 8080
 
 CMD ["python", "-u", "app.py"]

Jenkinsfile

@@ -3,12 +3,12 @@ pipeline {
 
     environment {
         // Configure these in Jenkins or as pipeline parameters
-        DOCKER_REGISTRY = 'https://git.wrigglyt.xyz/'
+        DOCKER_REGISTRY = 'git.wrigglyt.xyz'
         DOCKER_IMAGE = 'ryanv/myapp'  // e.g., username/repo for Docker Hub
         DEPLOY_HOST = '10.0.11.3'
         DEPLOY_USER = 'ryanv'
         DEPLOY_PATH = '/opt/myapp'
-        GIT_REPO_URL = 'https://github.com/myorg/jenkins-docker-deploy-example.git'
+        GIT_REPO_URL = 'https://git.wrigglyt.xyz/ryanv/jenkins-docker-deploy-example.git'
     }
 
     options {
@@ -47,6 +47,9 @@ pipeline {
 
         stage('Deploy via SSH') {
             steps {
+                script {
+                    env.DEPLOY_BRANCH = env.BRANCH_NAME ?: 'main'
+                }
                 sshagent(credentials: ['deploy-ssh-key']) {
                     sh """
                         ssh -o StrictHostKeyChecking=no ${env.DEPLOY_USER}@${env.DEPLOY_HOST} << 'DEPLOY_EOF'
@@ -56,7 +59,7 @@ pipeline {
                             # Clone or pull the repo (contains docker-compose.yml)
                             if [ -d .git ]; then
                                 git fetch origin
-                                git reset --hard origin/${env.BRANCH_NAME}
+                                git reset --hard origin/${env.DEPLOY_BRANCH}
                             else
                                 git clone ${env.GIT_REPO_URL} .
                             fi

Makefile

@@ -0,0 +1,4 @@
+.PHONY: audit
+audit:
+	pip install pip-audit
+	pip-audit

README.md

@@ -1,6 +1,9 @@
+# Status
+[![Build Status](https://jenkins.wrigglyt.xyz/job/t2/badge/icon)](https://jenkins.wrigglyt.xyz/job/t2/)
+
 # Jenkins Docker Deploy Example
 
-A Statping-like status monitoring app that demonstrates a Jenkins pipeline for Docker build, push, and deploy. The app performs HTTP/HTTPS and TCP checks, stores history in SQLite, and provides a dashboard with reports.
+A Statping-like status monitoring app that demonstrates a Jenkins pipeline for Docker build, push, and deploy. The app performs HTTP/HTTPS and TCP checks, stores history in SQLite, and provides a dashboard with reports. It may be useful for monitoring sites legitimately as well.
 
 ## App Features
 
@@ -8,6 +11,7 @@ A Statping-like status monitoring app that demonstrates a Jenkins pipeline for D
 - **TCP checks** – Verify connectivity to host:port
 - **History storage** – SQLite database persists check results
 - **Reports** – Uptime %, avg/min/max latency, recent check history
+- **Authentication** – Session-based login; multi-user with admin-managed accounts
 
 ## Repository Structure
 
@@ -31,20 +35,48 @@ A Statping-like status monitoring app that demonstrates a Jenkins pipeline for D
 ## Manual Test
 
 ```bash
-# Build and run locally
+# Build and run locally (set SECRET_KEY and ADMIN_* for auth)
 docker build -t myapp:test .
-docker run -p 8080:8080 -v $(pwd)/data:/app/data myapp:test
-# Visit http://localhost:8080
+docker run -p 8080:8080 -v $(pwd)/data:/app/data \
+  -e SECRET_KEY=dev-secret-change-in-production \
+  -e ADMIN_USER=admin -e ADMIN_PASSWORD=changeme \
+  myapp:test
+# Visit http://localhost:8080 and log in
 ```
 
 Add services from the dashboard (e.g. `https://example.com`, `google.com:443` for TCP) and view reports.
 
+### Authentication
+
+The app uses session-based authentication. On first run, if `ADMIN_USER` and `ADMIN_PASSWORD` are set and no users exist, an admin user is created. Admins can add more users at `/users`. Set `SECRET_KEY` to a random value (e.g. 32-byte hex) for production.
+
+### Check Retention and Rollups
+
+To limit database growth, the app **rolls up** old checks into hourly aggregates, then prunes raw data:
+
+1. **Rollup** (every 15 min): Checks older than `ROLLUP_AGE_HOURS` are aggregated into hourly buckets (total, success count, latency stats) and stored in `uptime_rollups`. Raw checks in those hours are deleted.
+2. **Prune**: Keeps last `CHECK_RETENTION_COUNT` raw checks per service; optionally deletes by age.
+
+This lets you report accurate uptime over **90+ days** without storing millions of raw checks. Reports combine rollups (historical) + raw checks (recent).
+
+| Env var | Default | Description |
+|---------|---------|-------------|
+| `ROLLUP_AGE_HOURS` | 24 | Aggregate checks older than N hours into hourly buckets |
+| `CHECK_RETENTION_COUNT` | 5000 | Keep last N raw checks per service |
+| `CHECK_RETENTION_DAYS` | 0 (disabled) | Also delete checks older than N days |
+
+Example: keep 2000 raw checks per service and drop anything older than 30 days:
+
+```bash
+docker run -e CHECK_RETENTION_COUNT=2000 -e CHECK_RETENTION_DAYS=30 ...
+```
+
 ## Jenkins Pipeline
 
 The pipeline:
 
 1. **Builds** a Docker image
-2. **Pushes** the image to a container registry (Docker Hub, etc.)
+2. **Pushes** the image to a container registry (Gitea, Docker Hub, etc.)
 3. **SSHs** to a deployment machine
 4. **Clones** (or pulls) this repo to get `docker-compose.yml`
 5. **Deploys** with `docker compose up -d`
@@ -53,47 +85,75 @@ The pipeline:
 
 **Jenkins**
 
-- Docker installed and Jenkins user in `docker` group
-- Pipeline and SSH Agent plugins
+- Docker installed and Jenkins agent in `docker` group
+- **Pipeline** and **SSH Agent** plugins
 - Git for cloning
 
-**Jenkins Credentials**
-
-| ID | Type | Purpose |
-|----|------|---------|
-| `docker-registry-credentials` | Username/Password | Docker Hub or registry login |
-| `deploy-ssh-key` | SSH Username with private key | SSH to deploy host |
-
 **Deploy Host**
 
 - Docker and Docker Compose installed
 - SSH access for the deploy user
 - If using a private registry: run `docker login` on the deploy host
 
-### Configuration
+### Adapting the Jenkinsfile for Your Own Repo
 
-Edit the `environment` block in `Jenkinsfile`:
+Edit the `environment` block in `Jenkinsfile` for your setup:
 
-```groovy
-environment {
-    DOCKER_REGISTRY = 'docker.io'
-    DOCKER_IMAGE = 'myorg/myapp'
-    DEPLOY_HOST = 'deploy-server.example.com'
-    DEPLOY_USER = 'deploy'
-    DEPLOY_PATH = '/opt/myapp'
-    GIT_REPO_URL = 'https://github.com/myorg/jenkins-docker-deploy-example.git'
-}
-```
+| Variable | Description | Example |
+|----------|-------------|---------|
+| `DOCKER_REGISTRY` | Registry hostname (no `https://`) | `git.wrigglyt.xyz` or `docker.io` |
+| `DOCKER_IMAGE` | Image path (org/repo) | `ryanv/myapp` |
+| `DEPLOY_HOST` | Deploy server hostname or IP | `10.0.11.3` |
+| `DEPLOY_USER` | SSH user on deploy host | `ryanv` |
+| `DEPLOY_PATH` | Path on deploy host for this app | `/opt/myapp` |
+| `GIT_REPO_URL` | Git repo URL (for deploy host to clone) | `https://git.wrigglyt.xyz/ryanv/myapp.git` |
+
+**Credential IDs** – Update these in the Jenkinsfile if you use different IDs:
+
+| Credential ID | Type | Who sets it up |
+|---------------|------|----------------|
+| `gitea_credentials` | Username/Password | **Each user** – your Gitea login for pushing images |
+| `deploy-ssh-key` | SSH Username with private key | **Shared** – one key for the deploy host, can be reused |
+
+> **Shared deploy host:** If you share a deploy host (e.g. a home server), you can reuse the same `deploy-ssh-key` credential—no need to create your own. Each person **must** add their own Gitea credentials in Jenkins for their pipeline job (Manage Jenkins → Credentials → Add → Username with password, ID `gitea_credentials`). Use your Gitea username and an access token with package read/write for the registry.
+
+### Jenkins Credentials Setup
+
+1. **`deploy-ssh-key`** (shared for the deploy host)
+   - Kind: SSH Username with private key
+   - ID: `deploy-ssh-key`
+   - Username: matches `DEPLOY_USER`
+   - Private key: RSA key in PEM format (`ssh-keygen -t rsa -b 4096 -m PEM`)
+   - Public key must be in `~/.ssh/authorized_keys` on the deploy host
+
+2. **`gitea_credentials`** (per user, for registry push)
+   - Kind: Username with password
+   - ID: `gitea_credentials` (or change `credentialsId` in the Jenkinsfile)
+   - Username: your Gitea username
+   - Password: your Gitea password or access token (token recommended)
 
 ### First-Time Deploy Host Setup
 
+On the deploy host:
+
 ```bash
 sudo mkdir -p /opt/myapp
-sudo chown deploy:deploy /opt/myapp
-sudo usermod -aG docker deploy
+sudo chown ryanv:ryanv /opt/myapp
+sudo usermod -aG docker ryanv
 ```
 
-The `docker-compose.yml` mounts `./data:/app/data` for SQLite persistence. Ensure the deploy directory is writable.
+If multiple users deploy to the same host, use separate paths (e.g. `/opt/myapp-alice`, `/opt/myapp-bob`) and update `docker-compose.yml` to use different ports for each app.
+
+The `docker-compose.yml` mounts `./data:/app/data` for SQLite persistence. The container runs as UID 1000. Ensure the data directory is writable:
+
+```bash
+mkdir -p data
+chown 1000:1000 data
+```
+
+### Dependency Audit
+
+Before deploying, run `make audit` (or `pip-audit`) to check for known vulnerabilities in dependencies.
 
 ### Branch Behavior
 

app/main.py

@@ -3,10 +3,42 @@ import os
 from datetime import datetime, timedelta, timezone
 
 from flask import Flask, redirect, render_template, request, url_for
+from flask_login import LoginManager, current_user, login_required, login_user, logout_user
 
 from app import models
 
 
+def _is_safe_redirect_url(url: str | None) -> bool:
+    """Check that redirect URL is relative to our app (prevents open redirect)."""
+    if not url:
+        return False
+    return url.startswith("/") and "//" not in url
+
+
+class User:
+    """Flask-Login compatible user wrapper."""
+
+    def __init__(self, user_dict: dict):
+        self.id = user_dict["id"]
+        self.username = user_dict["username"]
+        self.is_admin = bool(user_dict.get("is_admin", 0))
+
+    def get_id(self) -> str:
+        return str(self.id)
+
+    @property
+    def is_authenticated(self) -> bool:
+        return True
+
+    @property
+    def is_active(self) -> bool:
+        return True
+
+    @property
+    def is_anonymous(self) -> bool:
+        return False
+
+
 def _parse_report_dates(from_ts, to_ts, preset):
     """Parse from/to dates, applying preset if given. Returns (from_ts, to_ts, from_display, to_display)."""
     now = datetime.now(timezone.utc)
@@ -19,6 +51,9 @@ def _parse_report_dates(from_ts, to_ts, preset):
     elif preset == "30d":
         to_ts = now.isoformat()
         from_ts = (now - timedelta(days=30)).isoformat()
+    elif preset == "90d":
+        to_ts = now.isoformat()
+        from_ts = (now - timedelta(days=90)).isoformat()
     if from_ts and len(from_ts) == 10:
         from_ts = from_ts + "T00:00:00"
     if to_ts and len(to_ts) == 10:
@@ -33,22 +68,86 @@ app = Flask(
     template_folder=os.path.join(ROOT, "templates"),
     static_folder=os.path.join(ROOT, "static"),
 )
+app.config["SECRET_KEY"] = os.environ.get("SECRET_KEY", "dev-secret-change-in-production")
 VERSION = os.environ.get("VERSION", "dev")
 
+login_manager = LoginManager(app)
+login_manager.login_view = "login"
+login_manager.login_message = "Please log in to access this page."
+
+
+@login_manager.user_loader
+def load_user(user_id: str):
+    user_dict = models.get_user_by_id(int(user_id)) if user_id.isdigit() else None
+    return User(user_dict) if user_dict else None
+
+
+@login_manager.unauthorized_handler
+def unauthorized():
+    if request.is_json or request.accept_mimetypes.best == "application/json":
+        return {"error": "Authentication required"}, 401
+    return redirect(url_for("login", next=request.url))
+
+
+@app.route("/login", methods=["GET", "POST"])
+def login():
+    if current_user.is_authenticated:
+        return redirect(url_for("dashboard"))
+    if request.method == "POST":
+        username = (request.form.get("username") or "").strip()
+        password = request.form.get("password") or ""
+        user_dict = models.verify_user(username, password)
+        if user_dict:
+            login_user(User(user_dict))
+            next_param = request.form.get("next") or request.args.get("next")
+            next_url = next_param if _is_safe_redirect_url(next_param) else url_for("dashboard")
+            return redirect(next_url)
+        return render_template("login.html", error="Invalid username or password", version=VERSION)
+    return render_template("login.html", version=VERSION)
+
+
+@app.route("/logout")
+def logout():
+    logout_user()
+    return redirect(url_for("login"))
+
+
+@app.route("/users", methods=["GET", "POST"])
+@login_required
+def users():
+    if not current_user.is_admin:
+        return "Forbidden", 403
+    if request.method == "POST":
+        username = (request.form.get("username") or "").strip()
+        password = request.form.get("password") or ""
+        user_id = models.create_user(username, password, is_admin=False)
+        if user_id:
+            return redirect(url_for("users"))
+        return render_template(
+            "users.html",
+            users=models.list_users(),
+            error="Username already exists or invalid",
+            version=VERSION,
+        )
+    return render_template("users.html", users=models.list_users(), version=VERSION)
+
 
 @app.route("/")
+@login_required
 def dashboard():
     services = models.list_services()
     return render_template("dashboard.html", services=services, version=VERSION)
 
 
 @app.route("/api/services", methods=["GET"])
+@login_required
 def api_list_services():
     services = models.list_services()
     return {"services": services}
 
 
 @app.route("/api/services", methods=["POST"])
+@login_required
 def api_add_service():
     data = request.get_json(silent=True)
     if data is None and request.form:
@@ -74,6 +173,7 @@ def api_add_service():
 
 
 @app.route("/api/services/<int:service_id>", methods=["DELETE"])
+@login_required
 def api_delete_service(service_id):
     if models.delete_service(service_id):
         return {"deleted": service_id}
@@ -81,6 +181,7 @@ def api_delete_service(service_id):
 
 
 @app.route("/api/services/<int:service_id>", methods=["PATCH"])
+@login_required
 def api_update_service(service_id):
     svc = models.get_service(service_id)
     if not svc:
@@ -113,6 +214,7 @@ def api_update_service(service_id):
 
 
 @app.route("/api/services/<int:service_id>")
+@login_required
 def api_get_service(service_id):
     svc = models.get_service(service_id)
     if not svc:
@@ -122,6 +224,7 @@ def api_get_service(service_id):
 
 
 @app.route("/api/services/<int:service_id>/edit")
+@login_required
 def edit_service(service_id):
     svc = models.get_service(service_id)
     if not svc:
@@ -130,6 +233,7 @@ def edit_service(service_id):
 
 
 @app.route("/api/services/<int:service_id>/report")
+@login_required
 def report(service_id):
     svc = models.get_service(service_id)
     if not svc:
@@ -140,10 +244,22 @@ def report(service_id):
     from_ts, to_ts, from_display, to_display = _parse_report_dates(from_ts, to_ts, preset)
     status_filter = request.args.get("status")
     search = request.args.get("search", "").strip() or None
+    page = max(1, int(request.args.get("page", 1)))
+    per_page = min(100, max(10, int(request.args.get("per_page", 10))))
     stats = models.get_report_stats(service_id, from_ts=from_ts, to_ts=to_ts)
-    checks = models.get_checks(service_id, limit=100, from_ts=from_ts, to_ts=to_ts, status_filter=status_filter, search=search)
+    checks_total = models.get_checks_count(service_id, from_ts=from_ts, to_ts=to_ts, status_filter=status_filter, search=search)
+    checks = models.get_checks(
+        service_id,
+        limit=per_page,
+        offset=(page - 1) * per_page,
+        from_ts=from_ts,
+        to_ts=to_ts,
+        status_filter=status_filter,
+        search=search,
+    )
     chart_checks = models.get_checks(service_id, limit=200, from_ts=from_ts, to_ts=to_ts)
     period_label = _format_period_label(from_display, to_display) if (from_ts or to_ts) else None
+    total_pages = (checks_total + per_page - 1) // per_page if checks_total else 1
     return render_template(
         "report.html",
         service=dict(svc),
@@ -157,6 +273,10 @@ def report(service_id):
         preset=preset,
         status_filter=status_filter or "",
         search=search or "",
+        page=page,
+        per_page=per_page,
+        checks_total=checks_total,
+        total_pages=total_pages,
     )
 
 
@@ -172,6 +292,7 @@ def _format_period_label(from_display, to_display):
 
 
 @app.route("/api/services/<int:service_id>/history")
+@login_required
 def api_history(service_id):
     svc = models.get_service(service_id)
     if not svc:
@@ -188,6 +309,7 @@ def api_history(service_id):
 
 
 @app.route("/api/services/<int:service_id>/stats")
+@login_required
 def api_report_stats(service_id):
     """JSON report stats with optional from/to query params for date range."""
     svc = models.get_service(service_id)

app/models.py

@@ -2,12 +2,21 @@
 import os
 import sqlite3
 from contextlib import contextmanager
-from datetime import datetime
+from datetime import datetime, timedelta, timezone
 from pathlib import Path
 
+from werkzeug.security import check_password_hash, generate_password_hash
+
 DATA_PATH = os.environ.get("DATA_PATH", "/app/data")
 DB_PATH = Path(DATA_PATH) / "monitor.db"
 
+# Retention: keep last N checks per service, and optionally drop checks older than N days
+CHECK_RETENTION_COUNT = int(os.environ.get("CHECK_RETENTION_COUNT", "5000"))
+CHECK_RETENTION_DAYS = int(os.environ.get("CHECK_RETENTION_DAYS", "0")) or None
+
+# Rollup: aggregate checks older than N hours into hourly buckets for long-term reporting
+ROLLUP_AGE_HOURS = int(os.environ.get("ROLLUP_AGE_HOURS", "24"))
+
 
 def _ensure_data_dir():
     Path(DATA_PATH).mkdir(parents=True, exist_ok=True)
@@ -22,6 +31,110 @@ def _migrate_add_status(conn):
         conn.execute("UPDATE checks SET status = CASE WHEN success = 1 THEN 'OK' ELSE 'ERROR' END")
 
 
+def _migrate_add_rollups(conn):
+    """Create uptime_rollups table for aggregated hourly stats (long-term reporting)."""
+    conn.execute("""
+        CREATE TABLE IF NOT EXISTS uptime_rollups (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            service_id INTEGER NOT NULL,
+            period_start TEXT NOT NULL,
+            period_end TEXT NOT NULL,
+            total_checks INTEGER NOT NULL,
+            success_count INTEGER NOT NULL,
+            sum_response_ms REAL NOT NULL,
+            response_count INTEGER NOT NULL,
+            min_response_ms REAL,
+            max_response_ms REAL,
+            FOREIGN KEY (service_id) REFERENCES services(id),
+            UNIQUE(service_id, period_start)
+        )
+    """)
+    conn.execute("CREATE INDEX IF NOT EXISTS idx_rollups_service ON uptime_rollups(service_id)")
+    conn.execute("CREATE INDEX IF NOT EXISTS idx_rollups_period ON uptime_rollups(period_start)")
+    try:
+        conn.execute("SELECT response_count FROM uptime_rollups LIMIT 1")
+    except sqlite3.OperationalError:
+        conn.execute("ALTER TABLE uptime_rollups ADD COLUMN response_count INTEGER NOT NULL DEFAULT 0")
+
+
+def _migrate_add_users(conn):
+    """Create users table for authentication."""
+    conn.execute("""
+        CREATE TABLE IF NOT EXISTS users (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            username TEXT NOT NULL UNIQUE,
+            password_hash TEXT NOT NULL,
+            is_admin INTEGER NOT NULL DEFAULT 0,
+            created_at TEXT NOT NULL
+        )
+    """)
+    conn.execute("CREATE INDEX IF NOT EXISTS idx_users_username ON users(username)")
+
+
+def _seed_admin_if_empty(conn):
+    """Create initial admin user from env if no users exist."""
+    row = conn.execute("SELECT COUNT(*) FROM users").fetchone()
+    if row[0] > 0:
+        return
+    admin_user = os.environ.get("ADMIN_USER")
+    admin_password = os.environ.get("ADMIN_PASSWORD")
+    if not admin_user or not admin_password:
+        return
+    password_hash = generate_password_hash(admin_password)
+    conn.execute(
+        "INSERT INTO users (username, password_hash, is_admin, created_at) VALUES (?, ?, 1, ?)",
+        (admin_user, password_hash, datetime.utcnow().isoformat()),
+    )
+
+
+def create_user(username: str, password: str, is_admin: bool = False) -> int | None:
+    """Create a new user. Returns user id or None if username exists."""
+    username = username.strip()
+    if not username or not password:
+        return None
+    password_hash = generate_password_hash(password)
+    with get_db() as conn:
+        try:
+            cur = conn.execute(
+                "INSERT INTO users (username, password_hash, is_admin, created_at) VALUES (?, ?, ?, ?)",
+                (username, password_hash, 1 if is_admin else 0, datetime.utcnow().isoformat()),
+            )
+            return cur.lastrowid
+        except sqlite3.IntegrityError:
+            return None
+
+
+def get_user_by_id(user_id: int) -> dict | None:
+    """Get a user by id."""
+    with get_db() as conn:
+        row = conn.execute("SELECT * FROM users WHERE id = ?", (user_id,)).fetchone()
+        return dict(row) if row else None
+
+
+def get_user_by_username(username: str) -> dict | None:
+    """Get a user by username."""
+    with get_db() as conn:
+        row = conn.execute("SELECT * FROM users WHERE username = ?", (username.strip(),)).fetchone()
+        return dict(row) if row else None
+
+
+def verify_user(username: str, password: str) -> dict | None:
+    """Verify credentials and return user dict if valid."""
+    user = get_user_by_username(username)
+    if not user or not check_password_hash(user["password_hash"], password):
+        return None
+    return user
+
+
+def list_users():
+    """Return all users (id, username, is_admin, created_at)."""
+    with get_db() as conn:
+        rows = conn.execute(
+            "SELECT id, username, is_admin, created_at FROM users ORDER BY username"
+        ).fetchall()
+        return [dict(r) for r in rows]
+
+
 @contextmanager
 def get_db():
     _ensure_data_dir()
@@ -63,6 +176,9 @@ def init_db():
         conn.execute("CREATE INDEX IF NOT EXISTS idx_checks_timestamp ON checks(timestamp)")
         _migrate_add_status(conn)
         conn.execute("CREATE INDEX IF NOT EXISTS idx_checks_status ON checks(status)")
+        _migrate_add_rollups(conn)
+        _migrate_add_users(conn)
+        _seed_admin_if_empty(conn)
 
 
 def list_services():
@@ -137,55 +253,105 @@ def add_check(service_id: int, success: bool, response_time_ms: float | None, er
         )
 
 
-def get_checks(service_id: int, limit: int = 50, from_ts: str = None, to_ts: str = None, status_filter: str = None, search: str = None):
-    """Get recent checks for a service, optionally filtered by timestamp, status (ok/error), and error search."""
+def _checks_where_args(service_id: int, from_ts: str = None, to_ts: str = None, status_filter: str = None, search: str = None):
+    """Build WHERE clause and args for checks queries."""
+    q = "WHERE service_id = ?"
+    args = [service_id]
+    if from_ts:
+        q += " AND timestamp >= ?"
+        args.append(from_ts)
+    if to_ts:
+        q += " AND timestamp <= ?"
+        args.append(to_ts)
+    if status_filter == "error":
+        q += " AND status = 'ERROR'"
+    elif status_filter == "ok":
+        q += " AND status = 'OK'"
+    if search:
+        q += " AND (error_message LIKE ? OR status LIKE ?)"
+        args.extend([f"%{search}%", f"%{search}%"])
+    return q, args
+
+
+def get_checks_count(service_id: int, from_ts: str = None, to_ts: str = None, status_filter: str = None, search: str = None) -> int:
+    """Count checks matching filters (for pagination)."""
+    where, args = _checks_where_args(service_id, from_ts, to_ts, status_filter, search)
     with get_db() as conn:
-        q = "SELECT * FROM checks WHERE service_id = ?"
-        args = [service_id]
-        if from_ts:
-            q += " AND timestamp >= ?"
-            args.append(from_ts)
-        if to_ts:
-            q += " AND timestamp <= ?"
-            args.append(to_ts)
-        if status_filter == "error":
-            q += " AND status = 'ERROR'"
-        elif status_filter == "ok":
-            q += " AND status = 'OK'"
-        if search:
-            q += " AND (error_message LIKE ? OR status LIKE ?)"
-            args.extend([f"%{search}%", f"%{search}%"])
-        q += " ORDER BY timestamp DESC LIMIT ?"
-        args.append(limit)
-        rows = conn.execute(q, args).fetchall()
+        row = conn.execute(f"SELECT COUNT(*) FROM checks {where}", args).fetchone()
+        return row[0]
+
+
+def get_checks(service_id: int, limit: int = 50, offset: int = 0, from_ts: str = None, to_ts: str = None, status_filter: str = None, search: str = None):
+    """Get recent checks for a service, optionally filtered and paginated."""
+    where, args = _checks_where_args(service_id, from_ts, to_ts, status_filter, search)
+    args.extend([limit, offset])
+    with get_db() as conn:
+        rows = conn.execute(f"SELECT * FROM checks {where} ORDER BY timestamp DESC LIMIT ? OFFSET ?", args).fetchall()
         return [dict(r) for r in rows]
 
 
 def get_report_stats(service_id: int, from_ts: str = None, to_ts: str = None):
-    """Compute uptime % and latency stats for a service, optionally over a time range."""
+    """
+    Compute uptime % and latency stats for a service over a time range.
+    Uses hourly rollups for old data + raw checks for recent data (last ROLLUP_AGE_HOURS).
+    Supports accurate reporting over 90+ days.
+    """
+    now = datetime.now(timezone.utc)
+    raw_cutoff = (now - timedelta(hours=ROLLUP_AGE_HOURS)).isoformat()
+    to_ts = to_ts or now.isoformat()
+    from_ts = from_ts or "1970-01-01T00:00:00"
+
+    total = 0
+    success_count = 0
+    sum_response_ms = 0.0
+    count_with_response = 0
+    min_ms = None
+    max_ms = None
+
     with get_db() as conn:
-        q = "SELECT success, response_time_ms FROM checks WHERE service_id = ?"
-        args = [service_id]
-        if from_ts:
-            q += " AND timestamp >= ?"
-            args.append(from_ts)
-        if to_ts:
-            q += " AND timestamp <= ?"
-            args.append(to_ts)
-        q += " ORDER BY timestamp DESC LIMIT 10000"
-        rows = conn.execute(q, args).fetchall()
-    if not rows:
+        # 1. Rollups: hourly buckets that end before raw_cutoff
+        rollup_end = raw_cutoff if raw_cutoff < to_ts else from_ts
+        if from_ts < rollup_end:
+            q = """
+                SELECT total_checks, success_count, sum_response_ms, response_count, min_response_ms, max_response_ms
+                FROM uptime_rollups
+                WHERE service_id = ? AND period_start >= ? AND period_start < ?
+            """
+            rollup_rows = conn.execute(q, (service_id, from_ts, rollup_end)).fetchall()
+            for r in rollup_rows:
+                total += r["total_checks"]
+                success_count += r["success_count"]
+                sum_response_ms += r["sum_response_ms"] or 0
+                count_with_response += r["response_count"] or 0
+                if r["min_response_ms"] is not None:
+                    min_ms = r["min_response_ms"] if min_ms is None else min(min_ms, r["min_response_ms"])
+                if r["max_response_ms"] is not None:
+                    max_ms = r["max_response_ms"] if max_ms is None else max(max_ms, r["max_response_ms"])
+
+        # 2. Raw checks: recent data (overlaps with rollup period if range is entirely recent)
+        raw_from = from_ts if from_ts >= raw_cutoff else raw_cutoff
+        if raw_from <= to_ts:
+            q = "SELECT success, response_time_ms FROM checks WHERE service_id = ? AND timestamp >= ? AND timestamp <= ?"
+            raw_rows = conn.execute(q, (service_id, raw_from, to_ts)).fetchall()
+            for r in raw_rows:
+                total += 1
+                success_count += 1 if r["success"] else 0
+                if r["response_time_ms"] is not None:
+                    sum_response_ms += r["response_time_ms"]
+                    count_with_response += 1
+                    min_ms = r["response_time_ms"] if min_ms is None else min(min_ms, r["response_time_ms"])
+                    max_ms = r["response_time_ms"] if max_ms is None else max(max_ms, r["response_time_ms"])
+
+    if total == 0:
         return {"total": 0, "uptime_pct": 0, "avg_ms": None, "min_ms": None, "max_ms": None}
-    total = len(rows)
-    success_count = sum(1 for r in rows if r["success"])
-    uptime_pct = (success_count / total) * 100 if total else 0
-    response_times = [r["response_time_ms"] for r in rows if r["response_time_ms"] is not None]
+    uptime_pct = (success_count / total) * 100
+    avg_ms = round(sum_response_ms / count_with_response, 2) if count_with_response else None
     return {
         "total": total,
         "uptime_pct": round(uptime_pct, 2),
-        "avg_ms": round(sum(response_times) / len(response_times), 2) if response_times else None,
-        "min_ms": min(response_times) if response_times else None,
-        "max_ms": max(response_times) if response_times else None,
+        "avg_ms": avg_ms,
+        "min_ms": round(min_ms, 2) if min_ms is not None else None,
+        "max_ms": round(max_ms, 2) if max_ms is not None else None,
     }
 
 
@@ -210,6 +376,7 @@ def delete_service(service_id: int) -> bool:
     """Delete a service and its check history. Returns True if deleted."""
     with get_db() as conn:
         conn.execute("DELETE FROM checks WHERE service_id = ?", (service_id,))
+        conn.execute("DELETE FROM uptime_rollups WHERE service_id = ?", (service_id,))
         cur = conn.execute("DELETE FROM services WHERE id = ?", (service_id,))
         return cur.rowcount > 0
 
@@ -219,3 +386,108 @@ def get_all_services_for_scheduler():
     with get_db() as conn:
         rows = conn.execute("SELECT id, target, protocol, interval_seconds FROM services").fetchall()
         return [dict(r) for r in rows]
+
+
+def _hour_start(ts: str) -> str:
+    """Return ISO timestamp truncated to hour boundary (e.g. 2026-03-10T14:00:00)."""
+    dt = datetime.fromisoformat(ts.replace("Z", "+00:00"))
+    return dt.replace(minute=0, second=0, microsecond=0).isoformat()
+
+
+def rollup_old_checks() -> int:
+    """
+    Aggregate checks older than ROLLUP_AGE_HOURS into hourly buckets.
+    Returns number of raw checks that were rolled up and deleted.
+    """
+    cutoff = datetime.now(timezone.utc) - timedelta(hours=ROLLUP_AGE_HOURS)
+    cutoff_ts = cutoff.isoformat()
+    with get_db() as conn:
+        # Get checks older than cutoff, grouped by service and hour
+        rows = conn.execute(
+            """
+            SELECT service_id,
+                   strftime('%Y-%m-%dT%H:00:00', timestamp) as period_start,
+                   COUNT(*) as total_checks,
+                   SUM(success) as success_count,
+                   SUM(CASE WHEN response_time_ms IS NOT NULL THEN response_time_ms ELSE 0 END) as sum_response_ms,
+                   SUM(CASE WHEN response_time_ms IS NOT NULL THEN 1 ELSE 0 END) as response_count,
+                   MIN(CASE WHEN response_time_ms IS NOT NULL THEN response_time_ms END) as min_response_ms,
+                   MAX(response_time_ms) as max_response_ms,
+                   GROUP_CONCAT(id) as check_ids
+            FROM checks
+            WHERE timestamp < ?
+            GROUP BY service_id, period_start
+            """,
+            (cutoff_ts,),
+        ).fetchall()
+        if not rows:
+            return 0
+        deleted = 0
+        for r in rows:
+            period_end = datetime.fromisoformat(r["period_start"].replace("Z", "+00:00")) + timedelta(hours=1)
+            period_end_ts = period_end.isoformat()
+            conn.execute(
+                """
+                INSERT INTO uptime_rollups (service_id, period_start, period_end, total_checks, success_count, sum_response_ms, response_count, min_response_ms, max_response_ms)
+                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
+                ON CONFLICT(service_id, period_start) DO UPDATE SET
+                    total_checks = total_checks + excluded.total_checks,
+                    success_count = success_count + excluded.success_count,
+                    sum_response_ms = sum_response_ms + excluded.sum_response_ms,
+                    response_count = response_count + excluded.response_count,
+                    min_response_ms = MIN(min_response_ms, excluded.min_response_ms),
+                    max_response_ms = MAX(max_response_ms, excluded.max_response_ms)
+                """,
+                (
+                    r["service_id"],
+                    r["period_start"],
+                    period_end_ts,
+                    r["total_checks"],
+                    r["success_count"],
+                    r["sum_response_ms"] or 0,
+                    r["response_count"] or 0,
+                    r["min_response_ms"],
+                    r["max_response_ms"],
+                ),
+            )
+            ids = [int(x) for x in (r["check_ids"] or "").split(",") if x]
+            if ids:
+                placeholders = ",".join("?" * len(ids))
+                cur = conn.execute(f"DELETE FROM checks WHERE id IN ({placeholders})", ids)
+                deleted += cur.rowcount
+        return deleted
+
+
+def prune_checks_retention() -> int:
+    """
+    Remove old checks to limit storage. Keeps last CHECK_RETENTION_COUNT per service.
+    If CHECK_RETENTION_DAYS is set, also deletes checks older than that.
+    Returns number of rows deleted.
+    """
+    with get_db() as conn:
+        deleted = 0
+        # Delete checks older than N days (if configured)
+        if CHECK_RETENTION_DAYS:
+            cutoff = (datetime.now(timezone.utc) - timedelta(days=CHECK_RETENTION_DAYS)).isoformat()
+            cur = conn.execute("DELETE FROM checks WHERE timestamp < ?", (cutoff,))
+            deleted += cur.rowcount
+
+        # Keep only last N checks per service
+        service_ids = [r[0] for r in conn.execute("SELECT id FROM services").fetchall()]
+        for sid in service_ids:
+            # Get ids of checks to keep (most recent N)
+            keep_ids = conn.execute(
+                "SELECT id FROM checks WHERE service_id = ? ORDER BY timestamp DESC LIMIT ?",
+                (sid, CHECK_RETENTION_COUNT),
+            ).fetchall()
+            keep_ids = [r[0] for r in keep_ids]
+            if not keep_ids:
+                continue
+            placeholders = ",".join("?" * len(keep_ids))
+            cur = conn.execute(
+                f"DELETE FROM checks WHERE service_id = ? AND id NOT IN ({placeholders})",
+                [sid] + keep_ids,
+            )
+            deleted += cur.rowcount
+
+        return deleted

app/scheduler.py

@@ -2,7 +2,7 @@
 from apscheduler.schedulers.background import BackgroundScheduler
 
 from app.checker import run_check
-from app.models import get_all_services_for_scheduler
+from app.models import get_all_services_for_scheduler, prune_checks_retention, rollup_old_checks
 
 
 def _run_all_checks():
@@ -15,13 +15,28 @@ def _run_all_checks():
 def start_scheduler():
     """Start the background scheduler. Uses interval jobs per service."""
     scheduler = BackgroundScheduler()
+    _scheduled_ids = set()
 
-    def add_jobs():
+    def sync_jobs():
+        """Only add/remove jobs when the service list changes."""
+        nonlocal _scheduled_ids
         services = get_all_services_for_scheduler()
-        for svc in services:
-            job_id = f"service_{svc['id']}"
+        current_ids = {svc["id"] for svc in services}
+        svc_by_id = {svc["id"]: svc for svc in services}
+
+        # Remove jobs for deleted services
+        for sid in _scheduled_ids - current_ids:
+            job_id = f"service_{sid}"
             if scheduler.get_job(job_id):
                 scheduler.remove_job(job_id)
+            _scheduled_ids.discard(sid)
+
+        # Add jobs only for services that don't have one yet
+        for sid in current_ids:
+            if sid in _scheduled_ids:
+                continue
+            svc = svc_by_id[sid]
+            job_id = f"service_{sid}"
             interval = max(10, svc["interval_seconds"])
             scheduler.add_job(
                 run_check,
@@ -30,12 +45,20 @@ def start_scheduler():
                 id=job_id,
                 args=[svc["id"], svc["target"], svc["protocol"]],
             )
+            _scheduled_ids.add(sid)
 
     # Run checks immediately on startup, then schedule
     _run_all_checks()
-    add_jobs()
+    sync_jobs()
 
-    # Refresh job list every 60 seconds in case services were added
-    scheduler.add_job(add_jobs, "interval", seconds=60, id="refresh_jobs")
+    # Sync job list every 60 seconds (only adds/removes when services change)
+    scheduler.add_job(sync_jobs, "interval", seconds=60, id="sync_jobs")
+
+    # Roll up old checks into hourly buckets, then prune (every 15 min)
+    def rollup_and_prune():
+        rollup_old_checks()
+        prune_checks_retention()
+
+    scheduler.add_job(rollup_and_prune, "interval", minutes=15, id="prune_checks")
 
     scheduler.start()

docker-compose.yml

@@ -4,10 +4,15 @@ services:
   app:
     image: ${DOCKER_REGISTRY:-docker.io}/${DOCKER_IMAGE:-myapp}:${IMAGE_TAG:-latest}
     container_name: jenkins-deploy-app
+    user: "1000:1000"
     ports:
       - "8080:8080"
     volumes:
       - ./data:/app/data
     environment:
       - VERSION=${IMAGE_TAG:-latest}
+      - SECRET_KEY=${SECRET_KEY}
+      - ADMIN_USER=${ADMIN_USER}
+      - ADMIN_PASSWORD=${ADMIN_PASSWORD}
+      # Optional: CHECK_RETENTION_COUNT=5000, CHECK_RETENTION_DAYS=30
     restart: unless-stopped

requirements.txt

@@ -1,3 +1,4 @@
-flask>=3.0
-requests>=2.31
-apscheduler>=3.10
+flask>=3.0,<4
+requests>=2.31,<3
+apscheduler>=3.10,<4
+flask-login>=0.6.3,<1

static/style.css

@@ -56,6 +56,48 @@ header h1 a:hover {
     font-size: 0.875rem;
 }
 
+.header-nav {
+    display: flex;
+    gap: 1rem;
+    margin-left: auto;
+}
+
+.header-nav a {
+    font-size: 0.875rem;
+}
+
+.error {
+    color: var(--down);
+    margin-bottom: 1rem;
+}
+
+.login-form {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+    max-width: 300px;
+    padding: 1rem;
+    background: var(--surface);
+    border-radius: 6px;
+}
+
+.login-form input {
+    padding: 0.5rem 0.75rem;
+    border: 1px solid var(--muted);
+    border-radius: 4px;
+    background: var(--bg);
+    color: var(--text);
+}
+
+.login-form button {
+    padding: 0.5rem 1rem;
+    background: var(--accent);
+    color: white;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+}
+
 main {
     max-width: 900px;
     width: 100%;
@@ -254,6 +296,55 @@ h2 {
     text-overflow: ellipsis;
 }
 
+.pagination {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: center;
+    justify-content: space-between;
+    gap: 1rem;
+    margin: 1rem 0;
+    padding: 0.75rem 0;
+}
+
+.pagination-info {
+    font-size: 0.875rem;
+    color: var(--muted);
+}
+
+.pagination-links {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: center;
+    gap: 0.25rem;
+}
+
+.pagination-btn {
+    display: inline-block;
+    padding: 0.35rem 0.6rem;
+    font-size: 0.875rem;
+    background: var(--surface);
+    color: var(--text);
+    border: 1px solid var(--muted);
+    border-radius: 4px;
+    text-decoration: none;
+}
+
+.pagination-btn:hover {
+    border-color: var(--accent);
+    color: var(--accent);
+}
+
+.pagination-btn.pagination-current {
+    background: var(--accent);
+    border-color: var(--accent);
+    color: white;
+}
+
+.pagination-ellipsis {
+    padding: 0 0.25rem;
+    color: var(--muted);
+}
+
 .btn-delete {
     padding: 0.25rem 0.5rem;
     font-size: 0.8rem;

templates/base.html

@@ -10,6 +10,14 @@
     <header>
         <h1><a href="/">Status Monitor</a></h1>
         <span class="version">v{{ version }}</span>
+        {% if current_user.is_authenticated %}
+        <nav class="header-nav">
+            {% if current_user.is_admin %}
+            <a href="{{ url_for('users') }}">Users</a>
+            {% endif %}
+            <a href="{{ url_for('logout') }}">Logout</a>
+        </nav>
+        {% endif %}
     </header>
     <main>
         {% block content %}{% endblock %}

templates/login.html

@@ -0,0 +1,18 @@
+{% extends "base.html" %}
+
+{% block title %}Login - Status Monitor{% endblock %}
+
+{% block content %}
+<h2>Login</h2>
+{% if error %}
+<p class="error">{{ error }}</p>
+{% endif %}
+<form method="post" action="{{ url_for('login') }}" class="login-form">
+    <input type="hidden" name="next" value="{{ request.args.get('next') or '' }}">
+    <label for="username">Username</label>
+    <input type="text" id="username" name="username" required autofocus>
+    <label for="password">Password</label>
+    <input type="password" id="password" name="password" required>
+    <button type="submit">Log in</button>
+</form>
+{% endblock %}

templates/report.html

@@ -16,11 +16,16 @@
         <a href="{{ url_for('report', service_id=service.id, preset='24h') }}" class="preset-btn{% if preset == '24h' %} preset-active{% endif %}">Last 24h</a>
         <a href="{{ url_for('report', service_id=service.id, preset='7d') }}" class="preset-btn{% if preset == '7d' %} preset-active{% endif %}">Last 7 days</a>
         <a href="{{ url_for('report', service_id=service.id, preset='30d') }}" class="preset-btn{% if preset == '30d' %} preset-active{% endif %}">Last 30 days</a>
+        <a href="{{ url_for('report', service_id=service.id, preset='90d') }}" class="preset-btn{% if preset == '90d' %} preset-active{% endif %}">Last 90 days</a>
     </div>
     {% if period_label %}
     <p class="period-label">Showing: {{ period_label }}</p>
     {% endif %}
     <form method="get" action="{{ url_for('report', service_id=service.id) }}" class="date-range-form">
+        <input type="hidden" name="preset" value="{{ preset or '' }}">
+        <input type="hidden" name="status" value="{{ status_filter or '' }}">
+        <input type="hidden" name="search" value="{{ search or '' }}">
+        <input type="hidden" name="per_page" value="{{ per_page }}">
         <label>From</label>
         <input type="datetime-local" name="from" value="{{ from_date }}" placeholder="Start (optional)">
         <label>To</label>
@@ -71,12 +76,19 @@
     <input type="hidden" name="preset" value="{{ preset or '' }}">
     <input type="hidden" name="from" value="{{ from_date }}">
     <input type="hidden" name="to" value="{{ to_date }}">
+    <input type="hidden" name="page" value="1">
     <select name="status">
         <option value="">All</option>
         <option value="ok" {% if status_filter == 'ok' %}selected{% endif %}>OK only</option>
         <option value="error" {% if status_filter == 'error' %}selected{% endif %}>Errors only</option>
     </select>
     <input type="text" name="search" value="{{ search }}" placeholder="Search error message...">
+    <select name="per_page">
+        <option value="10" {% if per_page == 10 %}selected{% endif %}>10 per page</option>
+        <option value="25" {% if per_page == 25 %}selected{% endif %}>25 per page</option>
+        <option value="50" {% if per_page == 50 %}selected{% endif %}>50 per page</option>
+        <option value="100" {% if per_page == 100 %}selected{% endif %}>100 per page</option>
+    </select>
     <button type="submit">Filter</button>
 </form>
 <table class="checks-table">
@@ -110,6 +122,45 @@
     </tbody>
 </table>
 
+{% if checks_total > 0 %}
+<nav class="pagination">
+    <span class="pagination-info">
+        Showing {{ (page - 1) * per_page + 1 }}-{{ [page * per_page, checks_total] | min }} of {{ checks_total }}
+    </span>
+    <div class="pagination-links">
+        {% if page > 1 %}
+        <a href="{{ url_for('report', service_id=service.id, preset=preset or '', from=from_date, to=to_date, status=status_filter or '', search=search or '', per_page=per_page, page=page-1) }}" class="pagination-btn">Previous</a>
+        {% endif %}
+        {% if total_pages <= 7 %}
+            {% for p in range(1, total_pages + 1) %}
+                {% if p == page %}
+                <span class="pagination-btn pagination-current">{{ p }}</span>
+                {% else %}
+                <a href="{{ url_for('report', service_id=service.id, preset=preset or '', from=from_date, to=to_date, status=status_filter or '', search=search or '', per_page=per_page, page=p) }}" class="pagination-btn">{{ p }}</a>
+                {% endif %}
+            {% endfor %}
+        {% else %}
+            <a href="{{ url_for('report', service_id=service.id, preset=preset or '', from=from_date, to=to_date, status=status_filter or '', search=search or '', per_page=per_page, page=1) }}" class="pagination-btn">1</a>
+            {% if page > 3 %}<span class="pagination-ellipsis">…</span>{% endif %}
+            {% for p in range([2, page - 1] | max, [total_pages, page + 1] | min + 1) %}
+                {% if p == page %}
+                <span class="pagination-btn pagination-current">{{ p }}</span>
+                {% else %}
+                <a href="{{ url_for('report', service_id=service.id, preset=preset or '', from=from_date, to=to_date, status=status_filter or '', search=search or '', per_page=per_page, page=p) }}" class="pagination-btn">{{ p }}</a>
+                {% endif %}
+            {% endfor %}
+            {% if page < total_pages - 2 %}<span class="pagination-ellipsis">…</span>{% endif %}
+            {% if total_pages > 1 %}
+            <a href="{{ url_for('report', service_id=service.id, preset=preset or '', from=from_date, to=to_date, status=status_filter or '', search=search or '', per_page=per_page, page=total_pages) }}" class="pagination-btn">{{ total_pages }}</a>
+            {% endif %}
+        {% endif %}
+        {% if page < total_pages %}
+        <a href="{{ url_for('report', service_id=service.id, preset=preset or '', from=from_date, to=to_date, status=status_filter or '', search=search or '', per_page=per_page, page=page+1) }}" class="pagination-btn">Next</a>
+        {% endif %}
+    </div>
+</nav>
+{% endif %}
+
 <p>
     <a href="/">&larr; Back to Dashboard</a>
     <span style="margin-left: 1rem;">

templates/users.html

@@ -0,0 +1,41 @@
+{% extends "base.html" %}
+
+{% block title %}Users - Status Monitor{% endblock %}
+
+{% block content %}
+<h2>Users</h2>
+{% if error %}
+<p class="error">{{ error }}</p>
+{% endif %}
+
+<form method="post" action="{{ url_for('users') }}" class="add-form">
+    <input type="text" name="username" placeholder="Username" required>
+    <input type="password" name="password" placeholder="Password" required>
+    <button type="submit">Add User</button>
+</form>
+
+<table class="services-table">
+    <thead>
+        <tr>
+            <th>Username</th>
+            <th>Admin</th>
+            <th>Created</th>
+        </tr>
+    </thead>
+    <tbody>
+        {% for u in users %}
+        <tr>
+            <td>{{ u.username }}</td>
+            <td>{% if u.is_admin %}Yes{% else %}No{% endif %}</td>
+            <td>{{ u.created_at[:19] if u.created_at else '-' }}</td>
+        </tr>
+        {% else %}
+        <tr>
+            <td colspan="3">No users.</td>
+        </tr>
+        {% endfor %}
+    </tbody>
+</table>
+
+<p><a href="{{ url_for('dashboard') }}">&larr; Back to Dashboard</a></p>
+{% endblock %}