DevOps-Tooling-Website-Solution

If you're looking to set up a robust and scalable storage solution for your web server, using NFS (Network File System) is the way to go! But wait—it gets even better when you pair it with LVM (Logical Volume Manager) and XFS. Ready to level up your server skills? Let’s dive into it!

?? Mastering NFS Setup with LVM & XFS on EC2

If you're looking to set up a robust and scalable storage solution for your web server, using NFS (Network File System) is the way to go! But wait—it gets even better when you pair it with LVM (Logical Volume Manager) and XFS. Ready to level up your server skills? Let’s dive into it!

??? Step 1: Launching Your EC2 Instance

First things first: Get yourself an EC2 t3.micro instance running RedHat OS. This will be the server where you configure your NFS and manage the storage.

Pro tip: t3.micro is a great, cost-effective option if you're starting out!

?? Step 2: Supercharge with EBS Volumes

Now, let’s attach 3 or 4 Elastic Block Store (EBS) volumes. Think of them as extra hard drives for your server. We’ll combine these into a flexible storage system using LVM, and format them with XFS, which is known for its scalability and performance.

?? Step 3: SSH Into Your Instance

Time to get connected! Use SSH to access your EC2 instance so we can start the real magic:

ssh -i <your-keypair.pem> ec2-user@<your-instance-ip>
        

??? Step 4: Setting Up LVM and XFS

?? A Peek at Your Block Devices

Let's check out the storage devices we just attached:

lsblk        

You should see the attached volumes listed here.

??? Create Logical Volumes

We’ll use LVM to create logical volumes for flexibility in managing storage. The plan is to create three logical volumes for different purposes:

• lv-opt (for /mnt/opt): Will store Jenkins data.
• lv-apps (for /mnt/apps): Will be home to your application files.
• lv-logs (for /mnt/logs): A dedicated volume for your logs.

?? Step 5: Creating and Formatting Partitions

Create partitions on your EBS volumes using gdisk:

sudo gdisk /dev/nvme1n1        

Do this for all attached devices (nvme2n1, nvme3n1, etc.).

?? Step 6: Prepare Physical Volumes for LVM

Now we’ll turn these partitions into physical volumes that can be managed by LVM:

sudo pvcreate /dev/nvme1n1p1        

Repeat for each partition you created. ??

?? Step 7: Create a Volume Group

Bundle the physical volumes into a Volume Group called webdata-vg. It’s like pooling together all your disks into one logical storage space:

sudo pvcreate /dev/nvme1n1p1        

?? Step 8: Logical Volumes, Coming Right Up!

Now for the fun part! Let’s create the logical volumes where we’ll store apps, logs, and more.

sudo lvcreate -L 10G -n lv-apps webdata-vg sudo lvcreate -L 10G -n lv-logs webdata-vg sudo lvcreate -L 10G -n lv-opt webdata-vg        

?? Step 9: Format the Volumes with XFS

Time to format these logical volumes using XFS for faster and more efficient storage:

sudo mkfs.xfs /dev/webdata-vg/lv-apps sudo mkfs.xfs /dev/webdata-vg/lv-logs sudo mkfs.xfs /dev/webdata-vg/lv-opt        

?? Step 10: Mount the Volumes

Lastly, let’s mount these volumes so we can start using them:

sudo mkfs.xfs /dev/webdata-vg/lv-apps sudo mkfs.xfs /dev/webdata-vg/lv-logs sudo mkfs.xfs /dev/webdata-vg/lv-opt        

And there you have it! Your EC2 instance is now equipped with a powerful NFS server, backed by the scalability of LVM and the performance of XFS. Time to rock that storage setup! ??

NFS Server Setup Challenges:

1. EC2 Instance Configuration

- Ensuring that all necessary permissions, such as inbound/outbound rules and security groups, are correctly configured to allow SSH access and communication between EC2 instances and the NFS server.

- Managing instance limits if you are working on AWS Free Tier with t3.micro instances.

2. EBS Volumes and LVM Configuration

- Correctly attaching multiple EBS volumes to the EC2 instance and ensuring that they are accessible via lsblk.

- While working with LVM, ensuring that the volumes are properly initialized, and logical volumes are created without any errors in partitioning or volume allocation.

3. XFS Formatting

- Ensuring that the logical volumes are formatted with the XFS file system without issues, as the default formatting might be ext4, and any misstep could result in unusable volumes.

4. Mounting Volumes

- Verifying that the volumes are correctly mounted to the respective directories (`/mnt/apps`, /mnt/opt, /mnt/logs) and that they persist after reboots by correctly updating /etc/fstab. Misconfigurations in this file could result in the system failing to mount after reboot.

Database Server (MySQL) Setup Challenges:

1. MySQL Installation and Configuration

- Ensuring that MySQL is installed without errors and configured to bind to all IP addresses (0.0.0.0) so that web servers can connect from the subnet.

2. Database User Permissions

- Correctly granting database permissions for the webaccess user to access the database only from the web servers’ subnet CIDR. Incorrect permissions could result in database access issues.

?? Bonus Tips:

• Want to make sure the mounts persist after a reboot? Add them to your /etc/fstab file.
• Use df -h to check available disk space anytime.

for more visit Github

#CloudComputing #AWS #NFS #MySQL #WebDevelopment #StegHub

Happy server scaling!