Configs

MongoDB

Refer their Install MongoDB Community Edition on Linux page for installation instructions of your Linux distro

Install MongoDB Community Edition

For installing on MongoDB Community Edition on Fedora we’ll refer their RedHat guide

Configure the yum repository by creating a .repo file, for example: sudo nano /etc/yum.repos.d/mongodb-org-8.0.repo and paste given contents inside it:

[mongodb-org-8.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/9/mongodb-org/8.0/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://pgp.mongodb.com/server-8.0.asc

Install the latest stable version of MongoDB:
```
sudo yum install -y mongodb-org
```
yum automatically upgrades packages when newer versions become available

By default, MongoDB runs using the mongod user account and uses the following default directories:
- /var/lib/mongo as the data directory
- /var/log/mongodb as the log directory
The package manager creates the default directories during installation. The owner and group name are mongod. To use non-default directories, refer here
Configure SELinux policy (assuming default settings):
```
# Install required dependencies
sudo yum install git make checkpolicy policycoreutils selinux-policy-devel

# Download the policy repository
git clone https://github.com/mongodb/mongodb-selinux

# Build the policy
cd mongodb-selinux
make

# Apply the policy
sudo make install
```
The SELinux policy is designed to work with the configuration that results from a standard MongoDB .rpm installation and makes these assumptions. It is designed for mongod servers and does not apply to other MongoDB daemons or tools such as mongos, mongosh

To uninstall the policy, go to the directory where you downloaded the policy repository and run sudo make uninstall

To run MongoDB Community Edition, check your Init System and follow the procedure accordingly accordingly:

ps --no-headers -o comm 1

Mine was systemd (systemctl). Sol I’ll do the following to start, enable and verify the mongod service:

sudo systemctl daemon-reload
sudo systemctl start mongod
sudo systemctl status mongod
sudo systemctl enable mongod

The output should look like:

● mongod.service - MongoDB Database Server
    Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled; preset: disabled)
    Drop-In: /usr/lib/systemd/system/service.d
            └─10-timeout-abort.conf
    Active: active (running) since Sat 2024-11-02 15:21:19 IST; 3s ago
Invocation: a2a394e4298640bf98dd7a842064821d
      Docs: https://docs.mongodb.org/manual
  Main PID: 12577 (mongod)
    Memory: 189.9M (peak: 275.8M)
        CPU: 316ms
    CGroup: /system.slice/mongod.service
            └─12577 /usr/bin/mongod -f /etc/mongod.conf

Nov 02 15:21:19 fedora-pc systemd[1]: Started mongod.service - MongoDB Database Server.
Nov 02 15:21:19 fedora-pc mongod[12577]: {"t":{"$date":"2024-11-02T09:51:19.218Z"},"s":"I",  "c":"CONTROL",  "id":748>● mongod.service - MongoDB Database Server
    Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled; preset: disabled)
    Drop-In: /usr/lib/systemd/system/service.d
            └─10-timeout-abort.conf
    Active: active (running) since Sat 2024-11-02 15:21:19 IST; 3s ago
Invocation: a2a394e4298640bf98dd7a842064821d
      Docs: https://docs.mongodb.org/manual
  Main PID: 12577 (mongod)
    Memory: 189.9M (peak: 275.8M)
        CPU: 316ms
    CGroup: /system.slice/mongod.service
            └─12577 /usr/bin/mongod -f /etc/mongod.conf

Nov 02 15:21:19 fedora-pc systemd[1]: Started mongod.service - MongoDB Database Server.
Nov 02 15:21:19 fedora-pc mongod[12577]: {"t":{"$date":"2024-11-02T09:51:19.218Z"},"s":"I",  "c":"CONTROL",  "id":748>

Launch the mongo shell:
```
mongosh
```
If you get connection refused due stating some openssl configuration error, you might need to install openssl variant of the mongosh package as mentioned by this answer:
```
sudo yum remove mongodb-mongosh
sudo yum install mongodb-mongosh-shared-openssl3
sudo dnf install mongodb-org
```
When you enter open mongosh, the output would like below. Enter help to know commands and press Ctrl d to exit

Current Mongosh Log ID: 67254482d59e272c2c6b128b
Connecting to:    mongodb://127.0.0.1:27017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+2.3.3
Using MongoDB:    8.0.3
Using Mongosh:    2.3.3

For mongosh info see: https://www.mongodb.com/docs/mongodb-shell/

------
  The server generated these startup warnings when booting
  2024-11-02T02:41:47.410+05:30: Access control is not enabled for the database. Read and write access to data and configuration is unrestricted
  2024-11-02T02:41:47.410+05:30: For customers running the current memory allocator, we suggest changing the contents of the following sysfsFile
  2024-11-02T02:41:47.410+05:30: For customers running the current memory allocator, we suggest changing the contents of the following sysfsFile
  2024-11-02T02:41:47.410+05:30: We suggest setting the contents of sysfsFile to 0.
  2024-11-02T02:41:47.410+05:30: We suggest setting swappiness to 0 or 1, as swapping can cause performance problems.
------

test>

Configure Access Control:

test> use admin
switched to db admin
admin> db.createUser(
...   {
...     user: "kumar",
...     pwd: passwordPrompt(),
...     roles: [
...       { role: "userAdminAnyDatabase", db: "admin" },
...       { role: "readWriteAnyDatabase", db: "admin" }
...     ]
...   }
... )
Enter password
********{ ok: 1 }
admin> disableTelemetry()
Telemetry is now disabled.
admin>

Install MongoDB Compass

As per their docs, we’ll download the .rpm package for Fedora

# Download Compass
wget https://downloads.mongodb.com/compass/mongodb-compass-1.44.5.x86_64.rpm

# Install Compass
sudo yum install mongodb-compass-1.44.5.x86_64.rpm

# Launch Compass
mongodb-compass