Implement Monlet MVP stack and UI updates

deploy/showcase/agents/dead.toml

@@ -0,0 +1,24 @@
+hostname = "agent-dead"
+state_dir = "/var/lib/monlet-agent"
+
+[labels]
+scenario = "dead"
+role = "showcase"
+
+[server]
+enabled = true
+url = "http://server:8000"
+token = "monlet-dev-token"
+heartbeat_interval = "5s"
+batch_interval = "3s"
+
+[metrics]
+enabled = false
+listen = "127.0.0.1:9465"
+
+[[checks]]
+id = "ok_check"
+name = "Dead agent placeholder check"
+command = "/opt/monlet/checks/exit_0.sh"
+interval = "10s"
+timeout = "3s"

deploy/showcase/agents/mixed.toml

@@ -0,0 +1,46 @@
+hostname = "agent-mixed"
+state_dir = "/var/lib/monlet-agent"
+
+[labels]
+scenario = "mixed-status"
+role = "showcase"
+
+[server]
+enabled = true
+url = "http://server:8000"
+token = "monlet-dev-token"
+heartbeat_interval = "5s"
+batch_interval = "3s"
+
+[metrics]
+enabled = true
+listen = "0.0.0.0:9465"
+
+[[checks]]
+id = "ok_check"
+name = "Showcase ok"
+command = "/opt/monlet/checks/exit_0.sh"
+interval = "5s"
+timeout = "3s"
+
+[[checks]]
+id = "warning_check"
+name = "Showcase warning"
+command = "/opt/monlet/checks/exit_1.sh"
+interval = "5s"
+timeout = "3s"
+
+[[checks]]
+id = "critical_check"
+name = "Showcase critical (permanent webhook fail)"
+command = "/opt/monlet/checks/exit_2.sh"
+interval = "5s"
+timeout = "3s"
+dedupe_key = "agent-mixed:critical:fail"
+
+[[checks]]
+id = "unknown_check"
+name = "Showcase unknown"
+command = "/opt/monlet/checks/exit_3.sh"
+interval = "5s"
+timeout = "3s"

deploy/showcase/agents/prometheus_owned.toml

@@ -0,0 +1,25 @@
+hostname = "agent-prometheus-owned"
+state_dir = "/var/lib/monlet-agent"
+
+[labels]
+scenario = "prometheus-owned"
+role = "showcase"
+
+[server]
+enabled = true
+url = "http://server:8000"
+token = "monlet-dev-token"
+heartbeat_interval = "5s"
+batch_interval = "3s"
+
+[metrics]
+enabled = false
+listen = "127.0.0.1:9465"
+
+[[checks]]
+id = "promcheck"
+name = "Prometheus-owned critical (no outbox expected)"
+command = "/opt/monlet/checks/exit_2.sh"
+interval = "5s"
+timeout = "3s"
+notifications_enabled = false

deploy/showcase/agents/resolve.toml

@@ -0,0 +1,25 @@
+hostname = "agent-resolve"
+state_dir = "/var/lib/monlet-agent"
+
+[labels]
+scenario = "resolve"
+role = "showcase"
+
+[server]
+enabled = true
+url = "http://server:8000"
+token = "monlet-dev-token"
+heartbeat_interval = "5s"
+batch_interval = "3s"
+
+[metrics]
+enabled = false
+listen = "127.0.0.1:9465"
+
+[[checks]]
+id = "flapping"
+name = "Flapping check (critical then ok)"
+command = "/opt/monlet/checks/flapping.sh"
+interval = "5s"
+timeout = "3s"
+dedupe_key = "agent-resolve:flapping:retry"

deploy/showcase/agents/spool_replay.toml

@@ -0,0 +1,24 @@
+hostname = "agent-spool-replay"
+state_dir = "/var/lib/monlet-agent"
+
+[labels]
+scenario = "spool-replay"
+role = "showcase"
+
+[server]
+enabled = true
+url = "http://server:8000"
+token = "monlet-dev-token"
+heartbeat_interval = "5s"
+batch_interval = "3s"
+
+[metrics]
+enabled = false
+listen = "127.0.0.1:9465"
+
+[[checks]]
+id = "replay_check"
+name = "Spool replay check"
+command = "/opt/monlet/checks/replay_check.sh"
+interval = "3s"
+timeout = "2s"

deploy/showcase/agents/stale.toml

@@ -0,0 +1,24 @@
+hostname = "agent-stale"
+state_dir = "/var/lib/monlet-agent"
+
+[labels]
+scenario = "stale"
+role = "showcase"
+
+[server]
+enabled = true
+url = "http://server:8000"
+token = "monlet-dev-token"
+heartbeat_interval = "5s"
+batch_interval = "3s"
+
+[metrics]
+enabled = false
+listen = "127.0.0.1:9465"
+
+[[checks]]
+id = "ok_check"
+name = "Stale agent placeholder check"
+command = "/opt/monlet/checks/exit_0.sh"
+interval = "10s"
+timeout = "3s"