Files
mcp/deploy/scripts/install-agent.sh
Kyle Isom 8f913ddf9b P2.2-P2.9, P3.2-P3.10, P4.1-P4.3: Complete Phases 2, 3, and 4
11 work units built in parallel and merged:

Agent handlers (Phase 2):
- P2.2 Deploy: pull images, stop/remove/run containers, update registry
- P2.3 Lifecycle: stop/start/restart with desired_state tracking
- P2.4 Status: list (registry), live check (runtime), get status (drift+events)
- P2.5 Sync: receive desired state, reconcile unmanaged containers
- P2.6 File transfer: push/pull scoped to /srv/<service>/, path validation
- P2.7 Adopt: match <service>-* containers, derive component names
- P2.8 Monitor: continuous watch loop, drift/flap alerting, event pruning
- P2.9 Snapshot: VACUUM INTO database backup command

CLI commands (Phase 3):
- P3.2 Login, P3.3 Deploy, P3.4 Stop/Start/Restart
- P3.5 List/Ps/Status, P3.6 Sync, P3.7 Adopt
- P3.8 Service show/edit/export, P3.9 Push/Pull, P3.10 Node list/add/remove

Deployment artifacts (Phase 4):
- Systemd units (agent service + backup timer)
- Example configs (CLI + agent)
- Install script (idempotent)

All packages: build, vet, lint (0 issues), test (all pass).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 12:21:18 -07:00

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#!/usr/bin/env bash
# install-agent.sh -- Install and configure the MCP agent.
#
# Usage: install-agent.sh [path-to-mcp-agent-binary]
#
# This script is idempotent and safe to run multiple times.
set -euo pipefail
if [[ "$(id -u)" -ne 0 ]]; then
echo "error: this script must be run as root" >&2
exit 1
fi
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
DEPLOY_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
BINARY="${1:-./mcp-agent}"
# ------------------------------------------------------------------
# 1. Create mcp user and group
# ------------------------------------------------------------------
if ! id -u mcp &>/dev/null; then
useradd --system --shell /sbin/nologin --home-dir /srv/mcp --no-create-home mcp
echo "Created system user: mcp"
else
echo "User mcp already exists"
fi
# ------------------------------------------------------------------
# 2. Create directories
# ------------------------------------------------------------------
install -d -o mcp -g mcp -m 0750 /srv/mcp
install -d -o mcp -g mcp -m 0750 /srv/mcp/certs
install -d -o mcp -g mcp -m 0750 /srv/mcp/backups
# ------------------------------------------------------------------
# 3. Install binary
# ------------------------------------------------------------------
if [[ ! -f "${BINARY}" ]]; then
echo "error: binary not found: ${BINARY}" >&2
echo "Usage: $0 [path-to-mcp-agent-binary]" >&2
exit 1
fi
install -o root -g root -m 0755 "${BINARY}" /usr/local/bin/mcp-agent
echo "Installed mcp-agent to /usr/local/bin/mcp-agent"
# ------------------------------------------------------------------
# 4. Install example config if none exists
# ------------------------------------------------------------------
if [[ ! -f /srv/mcp/mcp-agent.toml ]]; then
install -o mcp -g mcp -m 0640 "${DEPLOY_DIR}/examples/mcp-agent.toml" /srv/mcp/mcp-agent.toml
echo "Installed example config to /srv/mcp/mcp-agent.toml (edit before starting)"
else
echo "Config /srv/mcp/mcp-agent.toml already exists, skipping"
fi
# ------------------------------------------------------------------
# 5. Install systemd units
# ------------------------------------------------------------------
install -o root -g root -m 0644 "${DEPLOY_DIR}/systemd/mcp-agent.service" /etc/systemd/system/
install -o root -g root -m 0644 "${DEPLOY_DIR}/systemd/mcp-agent-backup.service" /etc/systemd/system/
install -o root -g root -m 0644 "${DEPLOY_DIR}/systemd/mcp-agent-backup.timer" /etc/systemd/system/
# ------------------------------------------------------------------
# 6. Reload systemd
# ------------------------------------------------------------------
systemctl daemon-reload
echo "Systemd units installed and daemon reloaded"
# ------------------------------------------------------------------
# 7. Next steps
# ------------------------------------------------------------------
cat <<'NEXT'
--- Next steps ---
1. Edit /srv/mcp/mcp-agent.toml:
- Set server.grpc_addr to this node's overlay IP
- Set agent.node_name to this node's name
- Set mcias.server_url to the MCIAS server address
- Place TLS cert/key in /srv/mcp/certs/
2. Enable and start the agent:
systemctl enable --now mcp-agent
3. Enable the daily backup timer:
systemctl enable --now mcp-agent-backup.timer
4. Verify the agent is running:
systemctl status mcp-agent
journalctl -u mcp-agent -f
NEXT