Add SHIP Status Dashboard component-monitor deployment (#920)

* Add SHIP Status Dashboard component-monitor deployment

Add build script, config, and systemd service for running a dedicated
component-monitor instance on the ERT VM to report health status of
ERT services to the SHIP Status Dashboard.

The component-monitor probes the MCP server health endpoint and reports
status to the dashboard API. A separate instance is needed because
the app.ci cluster cannot reach the internal VM network.

* Update build script to extract binary from container image

Use the pre-built component-monitor image from quay.io/openshiftci
instead of compiling from source. This removes the Go toolchain
dependency on the VM.

* Run component-monitor as a container via podman

The pre-built container image from quay.io/openshiftci avoids the need
to install Go or extract the binary. The systemd service uses podman run
with the config and token mounted as volumes.

* Run component-monitor container as root

Remove User directive since cloud-user lacks rootless podman
permissions. System-level podman services run as root by default.

Author: rioliu-rh

deployment/component-monitor/config.yaml

@@ -0,0 +1,9 @@
+frequency: 30s
+components:
+  - component_slug: "errata-reliability"
+    sub_component_slug: "mcp-server"
+    http_monitor:
+      url: "http://10.0.76.71:8000/health"
+      code: 200
+      retry_after: 5s
+      severity: "Down"

deployment/systemd/ship-status-component-monitor.service

@@ -0,0 +1,29 @@
+[Unit]
+Description=SHIP Status Dashboard Component Monitor
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+
+ExecStartPre=-/usr/bin/podman pull quay.io/openshiftci/component-monitor:latest
+ExecStart=/usr/bin/podman run --rm --name ship-status-component-monitor \
+    -v /home/cloud-user/release-tests/deployment/component-monitor/config.yaml:/config.yaml:ro,Z \
+    -v /etc/component-monitor/token.txt:/token.txt:ro,Z \
+    quay.io/openshiftci/component-monitor:latest \
+    ./component-monitor \
+    --config-path=/config.yaml \
+    --dashboard-url=https://protected.ship-status.ci.openshift.org \
+    --name=ert-component-monitor \
+    --report-auth-token-file=/token.txt
+ExecStop=/usr/bin/podman stop ship-status-component-monitor
+
+Restart=always
+RestartSec=10
+
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=ship-status-component-monitor
+
+[Install]
+WantedBy=multi-user.target