MongoDB - Roboshop Project

we start mongoDB now

Instance Code

{
  "MaxCount": 1,
  "MinCount": 1,
  "ImageId": "ami-0089b8e98cd95257d",
  "InstanceType": "t3.micro",
  "EbsOptimized": true,
  "NetworkInterfaces": [
    {
      "DeviceIndex": 0,
      "AssociatePublicIpAddress": true,
      "SubnetId": "subnet-086a045ade7eae99f",
      "Groups": [
        "sg-0c2e3fdd288a74d3a"
      ]
    }
  ],
  "TagSpecifications": [
    {
      "ResourceType": "instance",
      "Tags": [
        {
          "Key": "Name",
          "Value": "frontend"
        }
      ]
    },
    {
      "ResourceType": "spot-instances-request",
      "Tags": [
        {
          "Key": "Name",
          "Value": "frontend"
        }
      ]
    }
  ],
  "InstanceMarketOptions": {
    "MarketType": "spot",
    "SpotOptions": {
      "InstanceInterruptionBehavior": "stop",
      "SpotInstanceType": "persistent"
    }
  },
  "PrivateDnsNameOptions": {
    "HostnameType": "ip-name",
    "EnableResourceNameDnsARecord": true,
    "EnableResourceNameDnsAAAARecord": false
  }
}

MongoDB Installation and Configuration

In RoboShop, the database management system MongoDB has been chosen to store and manage data. Here's how to install and configure it:

Step 1: Set up MongoDB repository

Before installing MongoDB, we need to set up its repository. Create a new file called mongo.repo in the directory /etc/yum.repos.d/ using the following command:

sudo vim /etc/yum.repos.d/mongo.repo

Then, add the following lines to the file:

[mongodb-org-4.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/4.2/x86_64/
gpgcheck=0
enabled=1

Step 2: Install MongoDB

Once the repository is set up, we can install MongoDB using the following command:

sudo yum install mongodb-org -y

Step 3: Start and enable MongoDB service

Start and enable the MongoDB service using the following commands:

sudo systemctl enable mongod
sudo systemctl start mongod

Step 4: Update MongoDB configuration

By default, MongoDB only listens to connections from the local machine (localhost). In order to allow connections from other servers, we need to update the MongoDB configuration file.

Open the configuration file /etc/mongod.conf in your text editor:

sudo vim /etc/mongod.conf

Find the line that starts with bindIp and change the value from 127.0.0.1 to 0.0.0.0.

# network interfaces
net:
  port: 27017
  bindIp: 0.0.0.0  # Listen to local interface only, comment to listen on all interfaces.

Step 5: Restart MongoDB service

After updating the MongoDB configuration file, restart the MongoDB service to apply the changes:

sudo systemctl restart mongod

That's it! MongoDB is now installed and configured to accept connections from other servers.