[Unit]
Description=Spinifex ECS container-instance agent
# Resolves host identity from IMDSv2, registers + heartbeats + polls task
# assignments through the AWS gateway over TLS+SigV4 (no NATS), and pulls
# task images through containerd.
Requires=containerd.service
After=containerd.service ecs-ca-install.service network-online.target mulga-cdi-generate.service
Wants=network-online.target

[Service]
Type=simple
# Static config (gateway URL, CA, region, cluster, seeded IAM creds,
# containerd socket) comes from /etc/spinifex-ecs/agent.env, dropped by
# cloud-init at launch. Absent file is tolerated — the agent falls back to
# its built-in defaults.
EnvironmentFile=-/etc/spinifex-ecs/agent.env
ExecStart=/usr/local/bin/ecs-agent
Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target