Files
curriculum-project-hub/hub/deploy/cph-hub.service

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[Unit]
Description=Curriculum Project Hub Silo (__INSTANCE_ID__)
After=network-online.target postgresql.service
Wants=network-online.target
# ADR-0018: refuse to start when the configured OS sandbox binary disappears
# after installation. Deployment preflight validates the executable itself;
# this start-time assertion keeps later package/host changes fail-closed.
AssertPathExists=__BWRAP_BIN__
AssertPathExists=__SOCAT_BIN__
AssertPathExists=__KEYRING_FILE__
[Service]
Type=simple
User=__SERVICE_USER__
Group=__SERVICE_GROUP__
WorkingDirectory=__HUB_DIR__
EnvironmentFile=__ENV_FILE__
Environment=HOME=__SERVICE_HOME__
Environment=XDG_STATE_HOME=__STATE_DIR__
Environment=XDG_CACHE_HOME=__CACHE_DIR__
Environment=HUB_SKILL_STORE_ROOT=__SKILL_STORE_ROOT__
Environment=PATH=__RUNTIME_PATH__
# ADR-0024: the root-owned source remains unreadable by the service account;
# systemd materializes a read-only per-unit credential at runtime.
LoadCredential=cph-secret-keyring:__KEYRING_FILE__
UMask=0027
# Run prisma migrations before each start, then launch the Hub.
ExecStartPre=__NODE_BIN__ __HUB_DIR__/node_modules/prisma/build/index.js migrate deploy --schema __HUB_DIR__/prisma/schema.prisma
ExecStart=__NODE_BIN__ __HUB_DIR__/dist/server.js
Restart=on-failure
RestartSec=5
MemoryMax=__MEMORY_MAX__
CPUQuota=__CPU_QUOTA__
TasksMax=__TASKS_MAX__
OOMPolicy=stop
# Graceful shutdown: lark ws close + in-flight runs.
KillSignal=SIGTERM
TimeoutStopSec=30
# Hardening: no new privileges. ProtectSystem/ProtectHome are NOT set here —
# they would break cph's render-cache extraction (~/.cache/cph/) and the
# bwrap user-namespace setup. The OS-level sandbox (ADR-0018) is the hard
# boundary; systemd hardening is kept minimal to avoid interfering with it.
NoNewPrivileges=true
[Install]
WantedBy=multi-user.target