Uptime Monitoring memakai Node.js

Erawan

11 years ago

Beberapa hari ini lagi mikirin ide untuk pemakaian domain dan vps yang nganggur, dan alhamdulillah akhirnya dapat ide juga.
Sebuah vps dari Digital Ocean, dengan memory 512MB, dan domain www.vpsdi.com, akhirnya dipakai untuk menjalankan sebuah program monitoring memakai Node.js dengan mempergunakan script dari fzaninotto
Program monitoring uptime ini, dijalankan dengan memakai sistem proxy melalui Nginx, supaya vpsnya juga dapat dipergunakan untuk menghosting situs lain.
Berikut adalah cara-cara membuat programnya berjalan :

Install Node.js

# apt-get install python g++ make checkinstall
# mkdir ~/src && cd $_
# wget -N http://nodejs.org/dist/node-latest.tar.gz
# tar xzvf node-latest.tar.gz && cd node-v*
# ./configure
# make && make install
Verify that your Node.js and Npm have been installed :
# node -v
# npm -v

# apt-get install python g++ make checkinstall

# mkdir ~/src && cd $_

# wget -N http://nodejs.org/dist/node-latest.tar.gz

# tar xzvf node-latest.tar.gz && cd node-v*

# ./configure

# make && make install

Verify that your Node.js and Npm have been installed :

# node -v

# npm -v

Install Mongodb

# apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10
# echo 'deb http://downloads-distro.mongodb.org/repo/debian-sysvinit dist 10gen' | tee /etc/apt/sources.list.d/mongodb.list
# apt-get update -y
# apt-get install mongodb-10gen
start mongodb
# /etc/init.d/mongodb start

# apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10

# echo 'deb http://downloads-distro.mongodb.org/repo/debian-sysvinit dist 10gen' | tee /etc/apt/sources.list.d/mongodb.list

# apt-get update -y

# apt-get install mongodb-10gen

start mongodb

# /etc/init.d/mongodb start

Membuat database, user dan password di Mongodb

# mongo > use uptime # ini adalah nama database > db.addUser('namauser','password'); > exit

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# mongo
> use uptime # ini adalah nama database
> db.addUser('namauser','password');
> exit

Cloning repository Git dan konfigurasinya

# apt-get install git -y
# git clone https://github.com/fzaninotto/uptime
# cd uptime
Menginstall package yang diperlukan
# npm install
Testing aplikasinya
# node app
Matikan aplikasi dengan menekan Ctrl+C

# apt-get install git -y

# git clone https://github.com/fzaninotto/uptime

# cd uptime

Menginstall package yang diperlukan

# npm install

Testing aplikasinya

# node app

Matikan aplikasi dengan menekan Ctrl+C

Atur konfigurasi file di /uptime/config/default.yaml

mongodb:
  server:   localhost
  database: uptime # silakan disesuaikan nama databasenya
  user:     user # silakan disesuaikan usernya
  password:	uptime # silakan disesuaikan passwordnya
  connectionString:       # alternative to setting server, database, user and password separately
monitor:
  name:                   origin
  apiUrl:                 'http://123.123.123.123:8082/api' # IP dari vps
  pollingInterval:        10000      # ten seconds
  timeout:                5000       # five seconds
  userAgent:              NodeUptime/3.0 (https://github.com/fzaninotto/uptime)
analyzer:
  updateInterval:         60000      # one minute
  qosAggregationInterval: 600000     # ten minutes
  pingHistory:            8035200000 # three months
autoStartMonitor: true
server:
  port:     8082
plugins:
  - ./plugins/console
  - ./plugins/patternMatcher
  - ./plugins/httpOptions
  # - ./plugins/email
  - ./plugins/basicAuth
email:
  method:      SMTP  # possible methods are SMTP, SES, or Sendmail
  transport:         # see https://github.com/andris9/nodemailer for transport options
    service:   Gmail # see https://github.com/andris9/Nodemailer/blob/master/lib/wellknown.js for well-known services
    auth:
      user:          # The email account username, e.g. 'username@gmail.com'
      pass:          # The email account password, e.G. 'password'
  event:
    up:        true
    down:      true
    paused:    false
    restarted: false
  message:
    from:            # The message sender, e.g. 'Fred Foo <foo@blurdybloop.com>'
    to:              # The message recipient, e.g. 'bar@blurdybloop.com, baz@blurdybloop.com'
  dashboardUrl: 'http://123.123.123.123:8082'
basicAuth:
  username:    namauser
  password:    password
verbose: true # only used in dev

mongodb:

server: localhost

database: uptime # silakan disesuaikan nama databasenya

user: user # silakan disesuaikan usernya

password: uptime # silakan disesuaikan passwordnya

connectionString: # alternative to setting server, database, user and password separately

monitor:

name: origin

apiUrl: 'http://123.123.123.123:8082/api' # IP dari vps

pollingInterval: 10000 # ten seconds

timeout: 5000 # five seconds

userAgent: NodeUptime/3.0 (https://github.com/fzaninotto/uptime)

analyzer:

updateInterval: 60000 # one minute

qosAggregationInterval: 600000 # ten minutes

pingHistory: 8035200000 # three months

autoStartMonitor: true

server:

port: 8082

plugins:

- ./plugins/console

- ./plugins/patternMatcher

- ./plugins/httpOptions

# - ./plugins/email

- ./plugins/basicAuth

email:

method: SMTP # possible methods are SMTP, SES, or Sendmail

transport: # see https://github.com/andris9/nodemailer for transport options

service: Gmail # see https://github.com/andris9/Nodemailer/blob/master/lib/wellknown.js for well-known services

auth:

user: # The email account username, e.g. 'username@gmail.com'

pass: # The email account password, e.G. 'password'

event:

up: true

down: true

paused: false

restarted: false

message:

from: # The message sender, e.g. 'Fred Foo <foo@blurdybloop.com>'

to: # The message recipient, e.g. 'bar@blurdybloop.com, baz@blurdybloop.com'

dashboardUrl: 'http://123.123.123.123:8082'

basicAuth:

username: namauser

password: password

verbose: true # only used in dev

Konfigurasi Nginxnya :

server {
	listen 80;
	listen [::]:80;
	server_name vpsdi.com;
	rewrite ^/(.*) http://www.vpsdi.com/$1 permanent;
}
server {
	listen 80;
	listen [::]:80;
	server_name www.vpsdi.com;
	location / {
            proxy_pass http://123.123.123.123:8082/;
            proxy_set_header Host $host;
            proxy_buffering off;
    }
}

server {

listen 80;

listen [::]:80;

server_name vpsdi.com;

rewrite ^/(.*) http://www.vpsdi.com/$1 permanent;

}

server {

listen 80;

listen [::]:80;

server_name www.vpsdi.com;

location / {

proxy_pass http://123.123.123.123:8082/;

proxy_set_header Host $host;

proxy_buffering off;

}

Menjalankan aplikasi

Masuk ke direktory tempat menginstall aplikasi, misalnya : # cd /home/uptimoe/ # node app

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Masuk ke direktory tempat menginstall aplikasi, misalnya :
# cd /home/uptimoe/
# node app

Aplikasi akan berjalan selama jendela sshnya masih terbuka/berjalan. Untuk membuat agar aplikasi Node.js terus berjalan, kita bisa mempergunakan program supervisord, namun kelemahannya vps harus direstart untuk mendeteksi penambahan konfigurasinya. Inilah yang menyebabkan vps dari Digital Ocean saya uptimenya rendah 😀
Selanjutnya, aplikasi tadi bisa dibuka dengan cara membuka alamat IP diakhiri dengan Port yang dipakai tadi

http://123.123.123.123:8082

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http://123.123.123.123:8082