#jinja2: lstrip_blocks: "True"
# Instantiable worker service, running inside the synapse container
# alongside the homeserver main process.
# c.f. https://github.com/matrix-org/synapse/pull/4662
[Unit]
Description=Matrix worker synapse.app.%i
AssertPathExists={{ matrix_synapse_config_dir_path }}/worker.%i.yaml
After=matrix-synapse.service
BindsTo=matrix-synapse.service

[Service]
Type=simple

# Intentional delay, so that the homeserver (we likely depend on) can manage to start.
ExecStartPre=/bin/sleep 5

# no sane way of instancing more than one variable (systemd "cant-fix" 🤦)
# c.f. https://github.com/systemd/systemd/issues/14895#issuecomment-594123923
# So use good ol' shell parameter expansion to get the worker type..
ExecStart=/bin/sh -c "WORKER=%i; WORKER=$${WORKER%%:*}; \
			exec /usr/bin/docker exec \
			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
			matrix-synapse \
			python -m synapse.app.$${WORKER} -c /data/homeserver.yaml -c /data/worker.%i.yaml"

# wait for worker startup & write out PID of actual worker process so systemd can handle it
ExecStartPost=/bin/sleep 5
ExecStartPost=/usr/local/bin/matrix-synapse-worker-write-pid %i /run/matrix-synapse-worker.%i.pid

ExecReload=/bin/kill -HUP $MAINPID
ExecStop=/bin/kill $MAINPID
PIDFile=/run/matrix-synapse-worker.%i.pid
KillMode=process
Restart=always
RestartSec=10
SyslogIdentifier=matrix-synapse-%i

[Install]
WantedBy=matrix-synapse.service