
#### Table of Contents

1. Pre requirement
2. Create EC2 Instance
3. Setup MongoDB at EC2 AWS Linux
4. Enable MongoDB on Linux
5. Create Database, Collection, and Record
6. Create Database
7. Create Table and Record
8. Use mongoexport  to export data to JSON
9. To Summarize

This blog shows how to set up a MongoDB database environment on the cloud, AWS
EC2 with Amazon Linux.

## Pre requirement

  - You'll need an AWS account, if you never set up an AWS account before, go
here
to create an AWS account.

## Create EC2 Instance

First, we'll need to set up an EC2 instance, then we'll SSH into the EC2
instance and set up the MongoDB database.

Create EC2 Instance with AWS Linux AMI.

Choose t2.micro.

During the setup everything as default is fine for this blog, we'll use
default VPC, as long as the new EC2 can access the internet.

For the security group, we'll just open port 22, so we can SSH later to into
EC2 for setup MongoDB.

## Setup MongoDB at EC2 AWS Linux

After SSH into EC2, we'll need to create mongodb-org-4.4.repo file at location
/ect/yum.repos.d.

```
cd /etc/yum.repos.d
```

Then, let's create mongodb-org-4.4.repo file.

```
nano mongodb-org-4.4.repo
```

This will open the file window, copy the following mongod repo at the
file and save it.

```
[mongodb-org-4.4]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/amazon/2/mongodb-org/4.4/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.4.asc
```

Now, mongod 4.4 repo is ready, you should be able to install mongodb package.

```
sudo yum install -y mongodb-org
```

Once you see start downloading mongodb packages, that's a good sign. Once
install MongoDB package is finish, you can verify by checking this folder is
exist or not. If the folder exists, means MongoDB installation is done and you
should be good to run MongoDB.

```
cd /var/lib/mongo
```

## Enable MongoDB on Linux

Run following command will start MongoDB process at the EC2 Instance

```
sudo systemctl start mongod
```

Run this command will enable mongod, even after reboot the EC2

```
sudo systemctl enable mongod
```

Now, at this point, your MongoDB on Linux Server should be ready. If you have
data you can import or restore it to the MongoDB server.

## Create Database, Collection, and Record

Type mongo then it will start MongoDB shell, now let's play around at the
server to check everything works.

```
mongo
```

### Create Database

The first command will show all the databases, then trying to create a new
database **myDB**.

```
show dbs
use myDB
```

### Create Table and Record

This command will create **myUser** table and insert a new
record.

```
db.myUser.insert({name: "john"});
```

### Use mongoexport  to export data to JSON

We'll use mongoexport to export the data we just add to the
**myUser** table. By default, the mongoexport tools are not
installed. You'll need to install by run following command.

```
sudo yum list installed mongodb-database-tools
```

Now, all other tools mongodump, mongorestore, mongoimport, mongoexport,
bsondump, mongostat, mongotop, mongofiles should be available to use.

The following command will output **myUser** table and generate
data to myUser.json file.

```
mongoexport --collection=myUser --db=myDB --out=myUser.json
```

## To Summarize

This blog is about how to set up MongoDB on Amazon Linux and will use database
tools for backup or restore data. Following are all the steps.

```
cd /etc/yum.repos.d

nano mongodb-org-4.4.repo

[mongodb-org-4.4]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/amazon/2/mongodb-org/4.4/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.4.asc

sudo yum install -y mongodb-org

sudo systemctl start mongod
```


This blog shows how to set up a MongoDB database environment on the cloud, AWS EC2 with Amazon Linux.

How to Setup MongoDB on Amazon Linux EC2


#### Table of Contents

1. list all the forever running thread
2. stop specific forever running thread
3. start specific forever running thead

# What's forever?

Forever is a npm package, it is for your node.js server side application. Look
this package document. forever npm package.

Use forever so that eventhouth you log off your machine, the node.js will
still running the application for you. Without this, after you log off, your
application will logged off.

Few very command command for running at Linux System.

### list all the forever running thread

```
/# forever list
```

### stop specific forever running thread

```
/# forever stop server.js
```

### start specific forever running thead

following example is similar to node server.js

```
/# forever start server.js
```


Forever is an npm package, this blog shows how to use it.

How to Use Forever in Linux for Node.js


delete all folder, files and sub directory.

```
rm -rf ./{your folder location}
```

http://www.mediacollege.com/linux/command/linux-command.html


Category Linux

How to Setup MongoDB on Amazon Linux EC2

How to Use Forever in Linux for Node.js

Useful Linux Command