# 2022-06-07: IS MongoDB's OFFICIAL /lib/systemd/system/mongod.service USEFUL?

# [Unit]
# Description=MongoDB Database Server
# Documentation=https://docs.mongodb.org/manual
# After=network-online.target
# Wants=network-online.target

# [Service]
# User=mongodb
# Group=mongodb
# EnvironmentFile=-/etc/default/mongod
# ExecStart=/usr/bin/mongod --config /etc/mongod.conf
# PIDFile=/var/run/mongodb/mongod.pid
# # file size
# LimitFSIZE=infinity
# # cpu time
# LimitCPU=infinity
# # virtual memory size
# LimitAS=infinity
# # open files
# LimitNOFILE=64000
# # processes/threads
# LimitNPROC=64000
# # locked memory
# LimitMEMLOCK=infinity
# # total threads (user+kernel)
# TasksMax=infinity
# TasksAccounting=false

# # Recommended limits for mongod as specified in
# # https://docs.mongodb.com/manual/reference/ulimit/#recommended-ulimit-settings

# [Install]
# WantedBy=multi-user.target


[Unit]
Description=High-performance, schema-free document-oriented database
After=syslog.target network.target

[Service]
Type=simple
User=mongodb
Group=mongodb
{% if not (ansible_architecture == "x86_64" or ansible_architecture == "aarch64") %}
# USED TO FAIL (after power failures, etc) as --repair cannot run when lock file exists: (https://github.com/iiab/iiab/issues/942)
#ExecStartPre=/usr/bin/mongod --repair --dbpath /library/dbdata/mongodb
# FAILS as systemd cannot run bash here:
#ExecStartPre=if [ ! -f /library/dbdata/mongodb/mongod.lock ]; then /usr/bin/mongod --repair --dbpath {{ mongodb_db_path }}; fi
# 2022-06-07: MIGHT STILL BE USEFUL for MongoDB 3.x (i.e. on 32-bit RasPiOS)
ExecStartPre=/usr/bin/iiab-mongodb-repair-if-no-lock
{% endif %}
ExecStart=/usr/bin/mongod -f {{ mongodb_conf }}
#ExecStop=/usr/bin/killall mongod
# killall's SIGTERM (15) above no longer induces a graceful stop w/ MongoDB 5+
# https://www.mongodb.com/docs/manual/reference/method/db.shutdownServer/
# https://www.mongodb.com/docs/v5.0/reference/command/shutdown/
# https://www.mongodb.com/docs/v6.0/reference/command/shutdown/
ExecStop=/usr/bin/mongod -f {{ mongodb_conf }} --shutdown
#ExecStop=/usr/bin/mongod --dbpath {{ mongodb_db_path }} --shutdown

[Install]
WantedBy=multi-user.target