feat: Add server management and database migrations

- Add start/stop/restart/status commands to Makefile
- Add health endpoint with uptime tracking
- Add CLI module (esp32-web command)
- Add initial database migration
- Listen on all interfaces (0.0.0.0:5500)

Bump version to 0.1.1

Makefile

@@ -1,13 +1,56 @@
-.PHONY: build run dev stop logs test migrate clean install
+.PHONY: build run dev stop logs test migrate clean install start restart status
 
 APP_NAME := esp32-web
 PORT := 5500
+HOST := 0.0.0.0
+PIDFILE := /tmp/esp32-web.pid
+LOGFILE := /tmp/esp32-web.log
 
 install:
 	pip install -e ".[dev]"
 
+# Server management
+start:
+	@if [ -f $(PIDFILE) ] && kill -0 $$(cat $(PIDFILE)) 2>/dev/null; then \
+		echo "Server already running (PID $$(cat $(PIDFILE)))"; \
+	else \
+		echo "Starting server on $(HOST):$(PORT)..."; \
+		nohup flask --app src/esp32_web run --host $(HOST) --port $(PORT) > $(LOGFILE) 2>&1 & \
+		echo $$! > $(PIDFILE); \
+		sleep 1; \
+		echo "Server started (PID $$(cat $(PIDFILE)))"; \
+	fi
+
+stop:
+	@if [ -f $(PIDFILE) ]; then \
+		echo "Stopping server (PID $$(cat $(PIDFILE)))..."; \
+		kill $$(cat $(PIDFILE)) 2>/dev/null || true; \
+		rm -f $(PIDFILE); \
+		echo "Server stopped"; \
+	else \
+		echo "Server not running"; \
+	fi
+
+restart: stop
+	@sleep 1
+	@$(MAKE) start
+
+status:
+	@if [ -f $(PIDFILE) ] && kill -0 $$(cat $(PIDFILE)) 2>/dev/null; then \
+		echo "Server running (PID $$(cat $(PIDFILE)))"; \
+		curl -s http://localhost:$(PORT)/health 2>/dev/null | \
+			python3 -c "import sys,json; d=json.load(sys.stdin); print(f\"Status: {d['status']}\nUptime: {d['uptime']}\")" 2>/dev/null \
+			|| echo "Health: unreachable"; \
+	else \
+		echo "Server not running"; \
+		rm -f $(PIDFILE) 2>/dev/null; \
+	fi
+
+logs:
+	@tail -f $(LOGFILE)
+
 dev:
-	flask --app src/esp32_web run --port $(PORT) --debug
+	flask --app src/esp32_web run --host $(HOST) --port $(PORT) --debug
 
 test:
 	pytest -v
@@ -21,20 +64,21 @@ migrate-init:
 migrate-create:
 	flask --app src/esp32_web db migrate -m "$(msg)"
 
+# Container targets
 build:
 	podman build -t $(APP_NAME) .
 
-run:
+container-run:
 	podman run -d --name $(APP_NAME) \
 		-p $(PORT):$(PORT) \
 		-p $(PORT):$(PORT)/udp \
 		-v ./instance:/app/instance:Z \
 		$(APP_NAME)
 
-stop:
+container-stop:
 	podman stop $(APP_NAME) && podman rm $(APP_NAME)
 
-logs:
+container-logs:
 	podman logs -f $(APP_NAME)
 
 clean:

migrations/README

@@ -0,0 +1 @@
+Single-database configuration for Flask.

migrations/alembic.ini

@@ -0,0 +1,50 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

migrations/env.py

@@ -0,0 +1,113 @@
+import logging
+from logging.config import fileConfig
+
+from flask import current_app
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+
+def get_engine():
+    try:
+        # this works with Flask-SQLAlchemy<3 and Alchemical
+        return current_app.extensions['migrate'].db.get_engine()
+    except (TypeError, AttributeError):
+        # this works with Flask-SQLAlchemy>=3
+        return current_app.extensions['migrate'].db.engine
+
+
+def get_engine_url():
+    try:
+        return get_engine().url.render_as_string(hide_password=False).replace(
+            '%', '%%')
+    except AttributeError:
+        return str(get_engine().url).replace('%', '%%')
+
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+config.set_main_option('sqlalchemy.url', get_engine_url())
+target_db = current_app.extensions['migrate'].db
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def get_metadata():
+    if hasattr(target_db, 'metadatas'):
+        return target_db.metadatas[None]
+    return target_db.metadata
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=get_metadata(), literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    conf_args = current_app.extensions['migrate'].configure_args
+    if conf_args.get("process_revision_directives") is None:
+        conf_args["process_revision_directives"] = process_revision_directives
+
+    connectable = get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=get_metadata(),
+            **conf_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

migrations/versions/80ccb7597566_initial_schema.py

@@ -0,0 +1,151 @@
+"""initial schema
+
+Revision ID: 80ccb7597566
+Revises: 
+Create Date: 2026-02-05 20:58:36.484000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '80ccb7597566'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('devices',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('mac', sa.String(length=17), nullable=False),
+    sa.Column('device_type', sa.String(length=8), nullable=False),
+    sa.Column('vendor', sa.String(length=64), nullable=True),
+    sa.Column('name', sa.String(length=64), nullable=True),
+    sa.Column('first_seen', sa.DateTime(), nullable=False),
+    sa.Column('last_seen', sa.DateTime(), nullable=False),
+    sa.Column('company_id', sa.Integer(), nullable=True),
+    sa.Column('tx_power', sa.Integer(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('devices', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_devices_mac'), ['mac'], unique=True)
+
+    op.create_table('sensors',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('hostname', sa.String(length=32), nullable=False),
+    sa.Column('ip', sa.String(length=15), nullable=False),
+    sa.Column('last_seen', sa.DateTime(), nullable=False),
+    sa.Column('status', sa.String(length=16), nullable=False),
+    sa.Column('config_json', sa.Text(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('sensors', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_sensors_hostname'), ['hostname'], unique=True)
+
+    op.create_table('alerts',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('sensor_id', sa.Integer(), nullable=False),
+    sa.Column('alert_type', sa.String(length=16), nullable=False),
+    sa.Column('source_mac', sa.String(length=17), nullable=True),
+    sa.Column('target_mac', sa.String(length=17), nullable=True),
+    sa.Column('rssi', sa.Integer(), nullable=True),
+    sa.Column('flood_count', sa.Integer(), nullable=True),
+    sa.Column('flood_window', sa.Integer(), nullable=True),
+    sa.Column('timestamp', sa.DateTime(), nullable=False),
+    sa.ForeignKeyConstraint(['sensor_id'], ['sensors.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('alerts', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_alerts_alert_type'), ['alert_type'], unique=False)
+        batch_op.create_index(batch_op.f('ix_alerts_sensor_id'), ['sensor_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_alerts_timestamp'), ['timestamp'], unique=False)
+
+    op.create_table('events',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('sensor_id', sa.Integer(), nullable=False),
+    sa.Column('event_type', sa.String(length=32), nullable=False),
+    sa.Column('payload_json', sa.Text(), nullable=True),
+    sa.Column('timestamp', sa.DateTime(), nullable=False),
+    sa.ForeignKeyConstraint(['sensor_id'], ['sensors.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('events', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_events_event_type'), ['event_type'], unique=False)
+        batch_op.create_index(batch_op.f('ix_events_sensor_id'), ['sensor_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_events_timestamp'), ['timestamp'], unique=False)
+
+    op.create_table('probes',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('device_id', sa.Integer(), nullable=False),
+    sa.Column('sensor_id', sa.Integer(), nullable=False),
+    sa.Column('ssid', sa.String(length=32), nullable=False),
+    sa.Column('rssi', sa.Integer(), nullable=False),
+    sa.Column('channel', sa.Integer(), nullable=False),
+    sa.Column('timestamp', sa.DateTime(), nullable=False),
+    sa.ForeignKeyConstraint(['device_id'], ['devices.id'], ),
+    sa.ForeignKeyConstraint(['sensor_id'], ['sensors.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('probes', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_probes_device_id'), ['device_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_probes_sensor_id'), ['sensor_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_probes_ssid'), ['ssid'], unique=False)
+        batch_op.create_index(batch_op.f('ix_probes_timestamp'), ['timestamp'], unique=False)
+
+    op.create_table('sightings',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('device_id', sa.Integer(), nullable=False),
+    sa.Column('sensor_id', sa.Integer(), nullable=False),
+    sa.Column('rssi', sa.Integer(), nullable=False),
+    sa.Column('timestamp', sa.DateTime(), nullable=False),
+    sa.ForeignKeyConstraint(['device_id'], ['devices.id'], ),
+    sa.ForeignKeyConstraint(['sensor_id'], ['sensors.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('sightings', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_sightings_device_id'), ['device_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_sightings_sensor_id'), ['sensor_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_sightings_timestamp'), ['timestamp'], unique=False)
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('sightings', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_sightings_timestamp'))
+        batch_op.drop_index(batch_op.f('ix_sightings_sensor_id'))
+        batch_op.drop_index(batch_op.f('ix_sightings_device_id'))
+
+    op.drop_table('sightings')
+    with op.batch_alter_table('probes', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_probes_timestamp'))
+        batch_op.drop_index(batch_op.f('ix_probes_ssid'))
+        batch_op.drop_index(batch_op.f('ix_probes_sensor_id'))
+        batch_op.drop_index(batch_op.f('ix_probes_device_id'))
+
+    op.drop_table('probes')
+    with op.batch_alter_table('events', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_events_timestamp'))
+        batch_op.drop_index(batch_op.f('ix_events_sensor_id'))
+        batch_op.drop_index(batch_op.f('ix_events_event_type'))
+
+    op.drop_table('events')
+    with op.batch_alter_table('alerts', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_alerts_timestamp'))
+        batch_op.drop_index(batch_op.f('ix_alerts_sensor_id'))
+        batch_op.drop_index(batch_op.f('ix_alerts_alert_type'))
+
+    op.drop_table('alerts')
+    with op.batch_alter_table('sensors', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_sensors_hostname'))
+
+    op.drop_table('sensors')
+    with op.batch_alter_table('devices', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_devices_mac'))
+
+    op.drop_table('devices')
+    # ### end Alembic commands ###

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "esp32-web"
-version = "0.1.0"
+version = "0.1.1"
 description = "REST API backend for ESP32 sensor fleet"
 requires-python = ">=3.11"
 dependencies = [
@@ -23,6 +23,9 @@ dev = [
 requires = ["setuptools>=68"]
 build-backend = "setuptools.build_meta"
 
+[project.scripts]
+esp32-web = "esp32_web.cli:cli"
+
 [tool.setuptools.packages.find]
 where = ["src"]
 

src/esp32_web/__init__.py

@@ -1,12 +1,19 @@
 """ESP32-Web Flask Application."""
+from datetime import datetime, UTC
 from flask import Flask
 
 from .config import Config
 from .extensions import db, migrate
 
+# Track app start time
+_start_time = None
+
 
 def create_app(config_class=Config):
     """Application factory."""
+    global _start_time
+    _start_time = datetime.now(UTC)
+
     app = Flask(__name__)
     app.config.from_object(config_class)
 
@@ -18,10 +25,20 @@ def create_app(config_class=Config):
     from .api import bp as api_bp
     app.register_blueprint(api_bp, url_prefix='/api/v1')
 
-    # Health check
+    # Health check with uptime
     @app.route('/health')
     def health():
-        return {'status': 'ok'}
+        uptime_seconds = int((datetime.now(UTC) - _start_time).total_seconds())
+        days, remainder = divmod(uptime_seconds, 86400)
+        hours, remainder = divmod(remainder, 3600)
+        minutes, seconds = divmod(remainder, 60)
+        if days > 0:
+            uptime_str = f'{days}d{hours}h{minutes}m'
+        elif hours > 0:
+            uptime_str = f'{hours}h{minutes}m{seconds}s'
+        else:
+            uptime_str = f'{minutes}m{seconds}s'
+        return {'status': 'ok', 'uptime': uptime_str, 'uptime_seconds': uptime_seconds}
 
     # Start UDP collector in non-testing mode
     if not app.config.get('TESTING'):

src/esp32_web/cli.py

@@ -0,0 +1,139 @@
+"""CLI commands for managing the application."""
+import os
+import signal
+import sys
+from pathlib import Path
+
+import click
+
+PIDFILE = Path('/tmp/esp32-web.pid')
+LOGFILE = Path('/tmp/esp32-web.log')
+
+
+def get_pid() -> int | None:
+    """Get PID from pidfile if running."""
+    if not PIDFILE.exists():
+        return None
+    try:
+        pid = int(PIDFILE.read_text().strip())
+        # Check if process exists
+        os.kill(pid, 0)
+        return pid
+    except (ValueError, ProcessLookupError, PermissionError):
+        PIDFILE.unlink(missing_ok=True)
+        return None
+
+
+def is_running() -> bool:
+    """Check if server is running."""
+    return get_pid() is not None
+
+
+@click.group()
+def cli():
+    """ESP32-Web server management."""
+    pass
+
+
+@cli.command()
+@click.option('--port', default=5500, help='Port to listen on')
+@click.option('--host', default='0.0.0.0', help='Host to bind to')
+@click.option('--debug', is_flag=True, help='Enable debug mode')
+def start(port: int, host: str, debug: bool):
+    """Start the server."""
+    if is_running():
+        click.echo(f'Server already running (PID {get_pid()})')
+        sys.exit(1)
+
+    click.echo(f'Starting server on {host}:{port}...')
+
+    pid = os.fork()
+    if pid > 0:
+        # Parent - write pidfile and exit
+        PIDFILE.write_text(str(pid))
+        click.echo(f'Server started (PID {pid})')
+        click.echo(f'Logs: {LOGFILE}')
+        sys.exit(0)
+
+    # Child - become daemon
+    os.setsid()
+
+    # Redirect stdout/stderr to logfile
+    log_fd = os.open(str(LOGFILE), os.O_WRONLY | os.O_CREAT | os.O_TRUNC)
+    os.dup2(log_fd, sys.stdout.fileno())
+    os.dup2(log_fd, sys.stderr.fileno())
+
+    # Import and run app
+    from esp32_web import create_app
+    app = create_app()
+    app.run(host=host, port=port, debug=debug, use_reloader=False)
+
+
+@cli.command()
+def stop():
+    """Stop the server."""
+    pid = get_pid()
+    if not pid:
+        click.echo('Server not running')
+        sys.exit(1)
+
+    click.echo(f'Stopping server (PID {pid})...')
+    try:
+        os.kill(pid, signal.SIGTERM)
+        PIDFILE.unlink(missing_ok=True)
+        click.echo('Server stopped')
+    except ProcessLookupError:
+        PIDFILE.unlink(missing_ok=True)
+        click.echo('Server was not running')
+
+
+@cli.command()
+@click.option('--port', default=5500, help='Port to listen on')
+@click.option('--host', default='0.0.0.0', help='Host to bind to')
+@click.option('--debug', is_flag=True, help='Enable debug mode')
+@click.pass_context
+def restart(ctx, port: int, host: str, debug: bool):
+    """Restart the server."""
+    if is_running():
+        ctx.invoke(stop)
+        import time
+        time.sleep(1)
+    ctx.invoke(start, port=port, host=host, debug=debug)
+
+
+@cli.command()
+def status():
+    """Show server status."""
+    pid = get_pid()
+    if pid:
+        click.echo(f'Server running (PID {pid})')
+        click.echo(f'Logs: {LOGFILE}')
+        # Try to get health status
+        try:
+            import urllib.request
+            with urllib.request.urlopen('http://localhost:5500/health', timeout=2) as resp:
+                click.echo(f'Health: {resp.read().decode()}')
+        except Exception:
+            click.echo('Health: unreachable')
+    else:
+        click.echo('Server not running')
+        sys.exit(1)
+
+
+@cli.command()
+@click.option('-n', '--lines', default=50, help='Number of lines to show')
+@click.option('-f', '--follow', is_flag=True, help='Follow log output')
+def logs(lines: int, follow: bool):
+    """Show server logs."""
+    if not LOGFILE.exists():
+        click.echo('No logs found')
+        sys.exit(1)
+
+    if follow:
+        os.execvp('tail', ['tail', '-f', str(LOGFILE)])
+    else:
+        os.execvp('tail', ['tail', '-n', str(lines), str(LOGFILE)])
+
+
+if __name__ == '__main__':
+    cli()