Creating a single-node file server using Terraform

Written by

Yandex Cloud

Updated at March 4, 2025

Getting started
- Required paid resources
Create an infrastructure
Configure Samba and NFS
Test your file server
How to delete the resources you created

To create an infrastructure for a single-node file server using Terraform:

If you no longer need the resources you created, delete them.

Getting started

Go to the management console and log in to Yandex Cloud or create an account if you do not have one yet.
On the Yandex Cloud Billing page, make sure you have a billing account linked and it has the ACTIVE or TRIAL_ACTIVE status. If you do not have a billing account, create one.

If you have an active billing account, you can go to the cloud page to create or select a folder for your infrastructure to operate in.

Learn more about clouds and folders.

Required paid resources

The cost for hosting a single node file server includes:

Fee for a continuously running VM (see Yandex Compute Cloud pricing).
Fee for using a dynamic or static public IP address (see Yandex Virtual Private Cloud pricing).
Fee for the outbound traffic (see Yandex Virtual Private Cloud pricing).

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the documentation on the Terraform website or mirror website.

To create an infrastructure using Terraform:

Install Terraform, get the credentials, and specify the source for installing Yandex Cloud (see Configure a provider, step 1).

Prepare the infrastructure description files:

Ready-made archive

Manually

Create a directory for the files.
Download the archive (1 KB).
Unpack the archive to the directory. This will add the single-node-file-server.tf configuration file to this directory.

Create a directory for the files.

In the directory, create a configuration file named single-node-file-server.tf:

single-node-file-server.tf

terraform {
  required_providers {
    yandex = {
      source  = "yandex-cloud/yandex"
      version = ">= 0.47.0"
    }
  }
}

provider "yandex" {
  zone = "ru-central1-a"
}

resource "yandex_vpc_network" "network-1" {
  name = "network1"
}

resource "yandex_vpc_subnet" "subnet-1" {
  name           = "subnet1"
  zone           = "ru-central1-a"
  network_id     = yandex_vpc_network.network-1.id
  v4_cidr_blocks = ["192.168.1.0/24"]
}

resource "yandex_vpc_security_group" "fileserver-tutorial-sg" {
  name       = "fileserver-tutorial-sg"
  network_id = yandex_vpc_network.network-1.id

  egress {
    protocol       = "ANY"
    description    = "any"
    v4_cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    protocol       = "TCP"
    description    = "ext-http"
    v4_cidr_blocks = ["0.0.0.0/0"]
    port           = 80
  }

  ingress {
    protocol       = "TCP"
    description    = "ext-ssh"
    v4_cidr_blocks = ["0.0.0.0/0"]
    port           = 22
  }

  ingress {
    protocol       = "TCP"
    description    = "ext-https"
    v4_cidr_blocks = ["0.0.0.0/0"]
    port           = 443
  }

  ingress {
    protocol       = "TCP"
    description    = "ext-msql"
    v4_cidr_blocks = ["0.0.0.0/0"]
    port           = 3306
  }

  ingress {
    protocol       = "TCP"
    description    = "nfs"
    v4_cidr_blocks = ["0.0.0.0/0"]
    port           = 2049
  }
}

resource "yandex_compute_image" "ubuntu-1804-lts" {
  source_family = "ubuntu-1804-lts"
}

resource "yandex_compute_disk" "boot-disk-ubuntu" {
  name     = "fileserver-tutorial-disk"
  type     = "network-ssd"
  zone     = "ru-central1-a"
  size     = "100"
  image_id = yandex_compute_image.ubuntu-1804-lts.id
}

resource "yandex_compute_instance" "fileserver-tutorial" {
  name        = "fileserver-tutorial"
  platform_id = "standard-v3"
  zone        = "ru-central1-a"

  resources {
    core_fraction = 100
    cores         = 8
    memory        = 56
  }

  boot_disk {
    disk_id = yandex_compute_disk.boot-disk-ubuntu.id
  }

  network_interface {
    subnet_id          = yandex_vpc_subnet.subnet-1.id
    security_group_ids = [yandex_vpc_security_group.fileserver-tutorial-sg.id]
    nat                = true
  }

  metadata = {
    user-data = "#cloud-config\nusers:\n  - name: <username>\n    groups: sudo\n    shell: /bin/bash\n    sudo: 'ALL=(ALL) NOPASSWD:ALL'\n    ssh_authorized_keys:\n      - ${file("<path_to_public_SSH_key>")}"
  }
}

For more information about the properties of the Terraform resources, see the Terraform official website:

Under metadata, enter your username and the SSH key contents. For more information, see VM metadata.
Create the resources:
1. In the terminal, change to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using the command:
```
terraform validate
```
  If the configuration is correct, the following message is returned:
```
Success! The configuration is valid.
```
3. Run the command:
```
terraform plan
```
  The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.
4. Apply the configuration changes:
```
terraform apply
```
5. Confirm the changes: type yes in the terminal and press Enter.

After creating the infrastructure, configure Samba and NFS.

Configure Samba and NFS

After the fileserver-tutorial VM enters the RUNNING status, run:

On the VM page of the management console, under Network, find the VM's public IP address.
Connect to the VM over SSH.

We recommend using a key pair when authenticating over SSH. Make sure to set up the created key pair so that the private key matches the public key sent to the VM.

Configure Samba and NFS:

Ubuntu

Download and install Samba:

sudo apt-get update
sudo apt-get install nfs-kernel-server samba

Prepare and mount the file system on the disk:
```
sudo mkfs -t ext4 -L data /dev/vdb
```

Prepare and mount a folder named my_folder for data storage on the disk:

sudo mkdir /my_folder
echo "LABEL=data /my_folder ext4 defaults 0 0" | sudo tee -a /etc/fstab
sudo mount /my_folder

Set the NFS configuration in the /etc/exports file. You can edit the file using nano:
```
sudo nano /etc/exports
```
Add the following lines to the file:
```
/my_folder <IP_address>(rw,no_subtree_check,fsid=100)
/my_folder 127.0.0.1(rw,no_subtree_check,fsid=100)
```
Where <IP_address> is the IP address of the computer you are going to connect the network data disk to via NFS.

Set the Samba configuration in the /etc/samba/smb.conf file. You can edit the file using nano:

sudo nano /etc/samba/smb.conf

Edit the file as follows:

[global]
   workgroup = WORKGROUP
   server string = %h server (Samba)
   dns proxy = no
   log file = /var/log/samba/log.%m
   max log size = 1000
   syslog = 0
   panic action = /usr/share/samba/panic-action %d
   server role = standalone server
   passdb backend = tdbsam
   obey pam restrictions = yes
   unix password sync = yes
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
   pam password change = yes
   map to guest = bad user
   usershare allow guests = yes
[printers]
   comment = All Printers
   browseable = no
   path = /var/spool/samba
   printable = yes
   guest ok = no
   read only = yes
   create mask = 0700
[print$]
   comment = Printer Drivers
   path = /var/lib/samba/printers
   browseable = yes
   read only = yes
   guest ok = no
[data]
   comment = /my_folder
   path = /my_folder
   browseable = yes
   read only = no
   writable = yes
   guest ok = yes
   hosts allow = <IP_address> 127.0.0.1
   hosts deny = 0.0.0.0/0

Where <IP_address> in the [data] section is the IP address of the computer you are going to connect the network data disk to via NFS.

Restart Samba and NFS:

sudo service nfs-kernel-server restart
sudo service smbd restart

Test your file server

Install ACL on the fileserver-tutorial VM:
Ubuntu
```
sudo apt install acl
```

Create a directory named remote and a file named test.txt on the fileserver-tutorial VM:

Ubuntu

sudo mkdir /my_folder/remote
sudo setfacl -m u:<your_username>:rwx /my_folder/remote
echo "Hello world!" > /my_folder/remote/test.txt

Connect the network disk to your computer via NFS and check if the test file is available:
Linux/macOS

Windows
If needed, install the network disk utility:
```
sudo apt-get install nfs-common
```
Create a mount point:
```
sudo mkdir /remote-test-dir
```
Attach a network disk:
```
sudo mount -t nfs <VM_public_IP_address>:/my_folder /remote-test-dir
```
As as result, the test directory and the file should become available at the mount point.
Note

You may need to configure Windows security policies for access to the file server.
1. Run the cmd.exe utility. To do this, use the Windows + R keyboard shortcut and run the cmd command.
2. From the command line, run:
  net use x: \\<VM_public_IP_address>\data
This will create a disk X with the test directory and file.

How to delete the resources you created

To stop paying for the resources you created:

Open the single-node-file-server.tf configuration file and delete the new infrastructure description from it.
Apply the changes:
1. In the terminal, change to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using the command:
```
terraform validate
```
  If the configuration is correct, the following message is returned:
```
Success! The configuration is valid.
```
3. Run the command:
```
terraform plan
```
  The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.
4. Apply the configuration changes:
```
terraform apply
```
5. Confirm the changes: type yes in the terminal and press Enter.

Creating a single-node file server using Terraform

Getting started

Required paid resources

Create an infrastructure

Configure Samba and NFS

Test your file server

How to delete the resources you created

See also

Was the article helpful?

Creating a single-node file server using Terraform

Getting startedGetting started

Required paid resourcesRequired paid resources

Create an infrastructureCreate an infrastructure

Configure Samba and NFSConfigure Samba and NFS

Test your file serverTest your file server

How to delete the resources you createdHow to delete the resources you created

See alsoSee also

Was the article helpful?

Getting started

Required paid resources

Create an infrastructure

Configure Samba and NFS

Test your file server

How to delete the resources you created

See also