how to set mogodb in upstart service with authentication - mongodb

Question

I have created a superuser tom in mongodb v2.6.11 with username & password and now i want to add this at ubuntu startup service
on searching came to know that i have to edit below file
this is how my /etc/init/mongod.conf looks
pre-start script
mkdir -p /var/lib/mongodb/
mkdir -p /var/log/mongodb/
end script
start on runlevel [2345]
stop on runlevel [06]
script
ENABLE_MONGOD="yes"
CONF=/etc/mongod.conf
DAEMON=/usr/bin/mongod
DAEMONUSER=${DAEMONUSER:-mongodb}
if [ -f /etc/default/mongod ]; then . /etc/default/mongod; fi
# Handle NUMA access to CPUs (SERVER-3574)
# This verifies the existence of numactl as well as testing that the command works
NUMACTL_ARGS="--interleave=all"
if which numactl >/dev/null 2>/dev/null && numactl $NUMACTL_ARGS ls / >/dev/null 2>/dev/null
then/etc/init/mongod.conf
NUMACTL="$(which numactl) -- $NUMACTL_ARGS"
DAEMON_OPTS=${DAEMON_OPTS:-"--config $CONF"}
else
NUMACTL=""
DAEMON_OPTS="-- "${DAEMON_OPTS:-"--config $CONF"}
fi
if [ "x$ENABLE_MONGOD" = "xyes" ]
then
exec start-stop-daemon --start --chuid $DAEMONUSER --exec $NUMACTL $DAEMON $DAEMON_OPTS
fi
end script
ATTEMPT 1 :by using mongo command line
sudo mongod --auth --port 27017 --dbpath /var/lib/mongodb
but don't know what to change in /etc/init/mongod.conf ?
ATTEMPT 2 :by using /etc/mongod.conf
Did Changes In /etc/mongod.conf
auth = true
port = 27017
$sudo mongod --config /etc/mongod.conf
/var/log/mongodb/mongod.log after firing command
2016-01-20T23:58:41.675+0530 ***** SERVER RESTARTED *****
2016-01-20T23:58:41.677+0530 [initandlisten] MongoDB starting : pid=3168 port=27017 dbpath=/var/lib/mongodb 64-bit host=vijay
2016-01-20T23:58:41.677+0530 [initandlisten] db version v2.6.11
2016-01-20T23:58:41.677+0530 [initandlisten] git version: d00c1735675c457f75a12d530bee85421f0c5548
2016-01-20T23:58:41.677+0530 [initandlisten] build info: Linux build4.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2016-01-20T23:58:41.677+0530 [initandlisten] allocator: tcmalloc
2016-01-20T23:58:41.677+0530 [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1", port: 27017 }, security: { authorization: "enabled" }, storage: { dbPath: "/var/lib/mongodb" }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log" } }
2016-01-20T23:58:41.812+0530 [initandlisten] journal dir=/var/lib/mongodb/journal
2016-01-20T23:58:41.812+0530 [initandlisten] recover : no journal files present, no recovery needed
2016-01-20T23:58:41.934+0530 [initandlisten] waiting for connections on port 27017
2016-01-20T23:58:47.746+0530 [signalProcessingThread] got signal 2 (Interrupt), will terminate after current cmd ends
2016-01-20T23:58:47.746+0530 [signalProcessingThread] now exiting
2016-01-20T23:58:47.746+0530 [signalProcessingThread] dbexit:
2016-01-20T23:58:47.746+0530 [signalProcessingThread] shutdown: going to close listening sockets...
2016-01-20T23:58:47.746+0530 [signalProcessingThread] closing listening socket: 10
2016-01-20T23:58:47.746+0530 [signalProcessingThread] closing listening socket: 13
2016-01-20T23:58:47.746+0530 [signalProcessingThread] removing socket file: /tmp/mongodb-27017.sock
2016-01-20T23:58:47.746+0530 [signalProcessingThread] shutdown: going to flush diaglog...
2016-01-20T23:58:47.746+0530 [signalProcessingThread] shutdown: going to close sockets...
2016-01-20T23:58:47.746+0530 [signalProcessingThread] shutdown: waiting for fs preallocator...
2016-01-20T23:58:47.746+0530 [signalProcessingThread] shutdown: lock for final commit...
2016-01-20T23:58:47.746+0530 [signalProcessingThread] shutdown: final commit...
2016-01-20T23:58:47.838+0530 [signalProcessingThread] shutdown: closing all files...
2016-01-20T23:58:47.843+0530 [signalProcessingThread] closeAllFiles() finished
2016-01-20T23:58:47.843+0530 [signalProcessingThread] journalCleanup...
2016-01-20T23:58:47.843+0530 [signalProcessingThread] removeJournalFiles
2016-01-20T23:58:47.949+0530 [signalProcessingThread] shutdown: removing fs lock...
2016-01-20T23:58:47.949+0530 [signalProcessingThread] dbexit: really exiting now
But on closing terminal mongodb also closes
ATTEMPT 3
Did Changes In /etc/mongod.conf
auth = true
port = 27017
RESTART COMPUTER
/var/log/mongodb/mongod.log after RESTARTING COMPUTER
2016-01-21T00:40:13.011+0530 ***** SERVER RESTARTED *****
2016-01-21T00:40:13.014+0530 [initandlisten] MongoDB starting : pid=1012 port=27017 dbpath=/var/lib/mongodb 64-bit host=vijay
2016-01-21T00:40:13.014+0530 [initandlisten] db version v2.6.11
2016-01-21T00:40:13.014+0530 [initandlisten] git version: d00c1735675c457f75a12d530bee85421f0c5548
2016-01-21T00:40:13.014+0530 [initandlisten] build info: Linux build4.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2016-01-21T00:40:13.014+0530 [initandlisten] allocator: tcmalloc
2016-01-21T00:40:13.014+0530 [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1", port: 27017 }, security: { authorization: "enabled" }, storage: { dbPath: "/var/lib/mongodb" }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log" } }
2016-01-21T00:40:13.439+0530 [initandlisten] exception in initAndListen: 10309 Unable to create/open lock file: /var/lib/mongodb/mongod.lock errno:13 Permission denied Is a mongod instance already running?, terminating
2016-01-21T00:40:13.439+0530 [initandlisten] dbexit:
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: going to close listening sockets...
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: going to flush diaglog...
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: going to close sockets...
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: waiting for fs preallocator...
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: lock for final commit...
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: final commit...
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: closing all files...
2016-01-21T00:40:13.439+0530 [initandlisten] closeAllFiles() finished
2016-01-21T00:40:13.439+0530 [initandlisten] shutdown: removing fs lock...
2016-01-21T00:40:13.439+0530 [initandlisten] couldn't remove fs lock errno:9 Bad file descriptor
2016-01-21T00:40:13.440+0530 [initandlisten] dbexit: really exiting now
Observation : Unable to create/open lock file: /var/lib/mongodb/mongod.lock errno:13 Permission denied Is a mongod instance already running?, terminating
I found this Error in log .Don't know if it causing mongodb to terminate.if it is causing mongo to STOP at computer start then how to set permisssion ?

Answer 1

There is absolutely no need to fiddle with the startup files (which you really should not do unless you exactly know what you are doing) or install additional software for managing MongoDB.
I'd rather suggest to read MongoDB's extensive documentation of the config file options.
The only thing you need to do is to set
auth=true
for legacy config files or
security:
authorization: enabled
for YAML config files in /etc/mongod.conf

Answer 2

Alternatively possible to use supervisor:
apt install supervisor
Setting for process mongodb:
create file myupstartservice.conf at location /etc/supervisor/conf.d and put below code
[program:mongo]
command=/usr/bin/mongod --auth --config /etc/mongod.conf
autostart=true
autorestart=true
user=root
priority=100
then checkservice
service supervisor restart
some reference

Answer 3

Thanks #Markus W mahalberg extending your answer in detailed steps
Correct Mongodb Way to set mongo in startup with authentication
Steps :
1 : sudo apt-get install mongodb-org - in new terminal
2 : sudo mongod --port 27017 --dbpath /var/lib/mongodb
3 : mongo --port 27017 - in new terminal
4 : use admin
5 : Lets setup superuser
db.createUser(
{
user: "tom",
pwd: "jerry",
roles: [
{ role: "userAdminAnyDatabase", db: "admin" },
{ role: "readWriteAnyDatabase", db: "admin" },
{ role: "dbAdminAnyDatabase", db: "admin" },
{ role: "clusterAdmin", db: "admin" }
]
})
6 : Lets configure for Startup service for that Do Changes In /etc/mongod.conf and set
auth = true
port = 27017
7 : sudo /etc/init.d/mongod stop OR sudo service mongod stop - in new terminal
8 : sudo /etc/init.d/mongod start OR sudo service mongod start
9 : restart your pc and before restarting your pc please empty this file /var/log/mongodb/mongod.log and save
Now lets check TWO things Authentication & mongodb running at startup
1 :Check Authentication setup
mongo --port 27017 -u "tom" -p "jerry" --authenticationDatabase "admin" - in new terminal
Note : this step is most important step .
it will give Output on terminal like
MongoDB shell version: 2.6.11
connecting to: 127.0.0.1:27017/test
>
2 :Check if mongodb is running at startup
Run below command without running mongod as mongod should have started in startup
mongo --port 27017 -u "tom" -p "jerry" --authenticationDatabase "admin" - in new terminal
If it dosent start then open this file '/var/log/mongodb/mongod.log' .
if it contains Error log :
Unable to create/open lock file: /var/lib/mongodb/mongod.lock errno:13 Permission denied Is a mongod instance already running?, terminating
Then apply these permissions and restart and again check
sudo chown -R mongodb:mongodb /var/lib/mongodb/.
sudo chown -R mongodb:mongodb /var/log/mongodb/mongod.log
sudo /etc/init.d/mongod stop` OR `sudo service mongod stop
sudo /etc/init.d/mongod start` OR `sudo service mongod start
If it does not contains above error log then you should have successfully started mongodb at startup

Answer 4

1 : Got to -> $cd /etc/init/
2 :Through vi Or nano editor Create file myservice.conf with below code
description "service to start mongodb at startup"
author "plutopunch :)"
start on started mountall
stop on shutdown
respawn
respawn limit 99 5
script
export HOME="/home/admin"
exec sudo mongod --port 27017 --auth --dbpath /var/lib/mongodb
end script
post-start script
end script
3 : restart pc
http://upstart.ubuntu.com/cookbook/