#
# This file tells systemd how to run Sidekiq as a 24/7 long-running daemon.
#
# Customize this file based on your bundler location, app directory, etc.
# Customize and copy this into /usr/lib/systemd/system (CentOS) or /lib/systemd/system (Ubuntu).
# Then run:
#   - systemctl enable <%= @service_file %>
#   - systemctl {start,stop,restart} <%= @service_file %>
#
# This file corresponds to a single Sidekiq process.  Add multiple copies
# to run multiple processes (sidekiq-1, sidekiq-2, etc).
#
# Use `journalctl -u <%= @service_file %> -rn 100` to view the last 100 lines of log output.
#
[Unit]
Description=<%= @service_file %>
# start us only once the network and logging subsystems are available,
# consider adding redis-server.service if Redis is local and systemd-managed.
After=syslog.target network.target

# See these pages for lots of options:
#
#   https://www.freedesktop.org/software/systemd/man/systemd.service.html
#   https://www.freedesktop.org/software/systemd/man/systemd.exec.html
#
# THOSE PAGES ARE CRITICAL FOR ANY LINUX DEVOPS WORK; read them multiple
# times! systemd is a critical tool for all developers to know and understand.
#
[Service]
#
#      !!!!  !!!!  !!!!
#
# As of v6.0.6, Sidekiq automatically supports systemd's `Type=notify` and watchdog service
# monitoring. If you are using an earlier version of Sidekiq, change this to `Type=simple`
# and remove the `WatchdogSec` line.
#
#      !!!!  !!!!  !!!!
#
Type=notify
# If your Sidekiq process locks up, systemd's watchdog will restart it within seconds.
WatchdogSec=10

WorkingDirectory=<%= current_path %>
<% if fetch(:sidekiq_six_ruby_vm) == :rbenv %>
# If you use rbenv:
ExecStart=/bin/bash -lc 'exec /home/deploy/.rbenv/shims/bundle exec sidekiq <%= @side_kiq_args %>'
<% elsif fetch(:sidekiq_six_ruby_vm) == :rvm %>
# RVM
ExecStart=<%= fetch(:rvm_path) %>/bin/rvm <%= fetch(:rvm_ruby_version) %> do bundle exec sidekiq <%= @side_kiq_args %>
<% else %>
# If you use the system's ruby:
ExecStart=/usr/local/bin/bundle exec sidekiq <%= @side_kiq_args %>
<% end %>


# Use `systemctl kill -s TSTP <%= @service_file %>` to quiet the Sidekiq process

# !!! Change this to your deploy user account !!!
User=<%= fetch(:sidekiq_six_user) %>
Group=<%= fetch(:sidekiq_six_user) %>
UMask=0002

# Greatly reduce Ruby memory fragmentation and heap usage
# https://www.mikeperham.com/2018/04/25/taming-rails-memory-bloat/
Environment=MALLOC_ARENA_MAX=2

# if we crash, restart
RestartSec=1
Restart=on-failure

# output goes to /var/log/syslog (Ubuntu) or /var/log/messages (CentOS)
StandardOutput=syslog
StandardError=syslog

# This will default to "bundler" if we don't specify it
SyslogIdentifier=<%= @service_file %>

[Install]
WantedBy=multi-user.target