matrix-docker-ansible-deploy/roles/custom/matrix-bridge-appservice-slack/templates/systemd/matrix-appservice-slack.service.j2

#jinja2: lstrip_blocks: "True"
[Unit]
Description=Matrix Appservice Slack bridge
{% for service in matrix_appservice_slack_systemd_required_services_list %}
Requires={{ service }}
After={{ service }}
{% endfor %}
{% for service in matrix_appservice_slack_systemd_wanted_services_list %}
Wants={{ service }}
{% endfor %}
DefaultDependencies=no

[Service]
Type=simple
Environment="HOME={{ devture_systemd_docker_base_systemd_unit_home_path }}"
ExecStartPre=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} stop --time={{ devture_systemd_docker_base_container_stop_grace_time_seconds }} matrix-appservice-slack 2>/dev/null || true'
ExecStartPre=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-appservice-slack 2>/dev/null || true'

# Intentional delay, so that the homeserver (we likely depend on) can manage to start.
ExecStartPre={{ matrix_host_command_sleep }} 5

ExecStart={{ devture_systemd_docker_base_host_command_docker }} run --rm --name matrix-appservice-slack \
			--log-driver=none \
			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
			--cap-drop=ALL \
			--network={{ matrix_docker_network }} \
			{% if matrix_appservice_slack_container_http_host_bind_port %}
			-p {{ matrix_appservice_slack_container_http_host_bind_port }}:{{matrix_appservice_slack_slack_port}} \
			{% endif %}
			-v {{ matrix_appservice_slack_config_path }}:/config:z \
			-v {{ matrix_appservice_slack_data_path }}:/data:z \
			{% for arg in matrix_appservice_slack_container_extra_arguments %}
			{{ arg }} \
			{% endfor %}
			{{ matrix_appservice_slack_docker_image }} \
			node app.js -p {{matrix_appservice_slack_matrix_port}} -c /config/config.yaml -f /config/slack-registration.yaml

ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} stop --time={{ devture_systemd_docker_base_container_stop_grace_time_seconds }} matrix-appservice-slack 2>/dev/null || true'
ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-appservice-slack 2>/dev/null || true'
Restart=always
RestartSec=30
SyslogIdentifier=matrix-appservice-slack

[Install]
WantedBy=multi-user.target