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@vesh95
Created March 19, 2020 04:45
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monit + unicorn + sphinx + sidekiq
## Nginx ###
check process nginx with pidfile /run/nginx.pid
start program = "/usr/sbin/service nginx start"
stop program = "/usr/sbin/service nginx stop"
if cpu > 60% for 2 cycles then alert
if cpu > 80% for 5 cycles then restart
if memory usage > 80% for 5 cycles then restart
if failed host 194.61.1.61 port 80 protocol http
then restart
if 3 restarts within 5 cycles then timeout
### Postgresql ###
check process postgresql
with pidfile /var/run/postgresql/10-main.pid
start program = "/usr/sbin/service postgresql start"
stop program = "/usr/sbin/service postgresql stop"
if failed host localhost port 5432 protocol pgsql then restart
if cpu > 80% then restart
if memory usage > 80% for 2 cycles then restart
if 5 restarts within 5 cycles then timeout
### Redis ###
check process redis-server
with pidfile "/var/run/redis/redis-server.pid"
start program = "/usr/sbin/service redis start"
stop program = "/usr/sbin/service redis stop"
if totalmem > 100 Mb then alert
if children > 255 for 5 cycles then stop
if cpu usage > 95% for 3 cycles then restart
if memory usage > 80% for 5 cycles then restart
if failed host 127.0.0.1 port 6379 then restart
if 5 restarts within 5 cycles then timeout
### Sidekiq ###
check process sidekiq
with pidfile "/home/deployer/qna/shared/tmp/pids/sidekiq-0.pid"
start program = "/bin/su - deployer -c 'cd /home/deployer/qna/current && /home/deployer/.rvm/bin/rvm default do bundle exec sidekiq --index 0 --pidfile /home/deployer/qna/shared/tmp/pids/sidekiq-0.pid --environment production --logfile /home/deployer/qna/shared/log/sidekiq.log --daemon'"
stop program = "/bin/su - deployer -c 'cd /home/deployer/qna/current && /home/deployer/.rvm/bin/rvm default do bundle exec sidekiqctl stop /home/deployer/qna/shared/tmp/pids/sidekiq-0.pid 10'"
if cpu > 80% then restart
if memory usage > 80% for 2 cycles then restart
if 3 restarts within 3 cycles then timeout
### Unicorn ###
check process unicorn
with pidfile "/home/deployer/qna/shared/tmp/pids/unicorn.pid"
start program = "/bin/su - deployer -c 'cd /home/deployer/qna/current/; /home/deployer/.rvm/bin/rvm default do bundle exec unicorn -c /home/deployer/qna/current/config/unicorn/production.rb -E production -D'"
stop program = "bin/su - deployer -c '/bin/kill -s QUIT `cat /home/deployer/qna/current/tmp/pids/unicorn.pid`'"
if totalmem > 90% for 3 cycles then restart
if 5 restarts within 5 cycles then timeout
if cpu usage > 90% for 2 cycles then restart
if 5 restarts within 5 cycles then timeout
### Sphinx ###
check process sphinx
with pidfile "/home/deployer/qna/shared/tmp/pids/searchd.pid"
start program = "/bin/su - deployer -c 'cd /home/deployer/qna/current/; /home/deployer/.rvm/bin/rvm default do bundle exec rake ts:start"
stop program = "/bin/su - deployer -c 'cd /home/deployer/qna/current/; /home/deployer/.rvm/bin/rvm default do bundle exec rake ts:stop"
if cpu usage > 80% for 2 cycles then restart
if totalmem > 80% for 4 cycles then restart
if 3 restarts within 3 cycles then timeout
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