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Rocket.Chat VM Creation (VM-101)

Brief description: Create VM-101 for Rocket.Chat with 2 vCPU, 4GB RAM, and 30GB storage.

VM Specifications

  • VM ID: 101
  • Name: rocketchat
  • CPU: 2 vCPU
  • RAM: 4 GiB
  • Disk: 30 GiB (ZFS)
  • OS: Ubuntu Server 24.04 LTS
  • Network: vmbr2 (private internal network)
  • Static IP: 192.168.192.101/18
  • Gateway: 192.168.192.5
  • Purpose: Rocket.Chat server

Prerequisites

  • [ ] Proxmox Web UI accessible
  • [ ] Ubuntu 24.04 LTS ISO uploaded
  • [ ] ZFS storage pool available
  • [ ] IP address planned from overview

Step-by-Step Instructions

Step 1: Create VM in Proxmox

  1. Log into Proxmox Web UI at https://<proxmox-ip>:8006
  2. Click on your node in the left sidebar
  3. Click Create VM button (top right)

Step 2: General Tab

  • Node: (your node name)
  • VM ID: 101
  • Name: rocketchat
  • Start at boot: (optional, can enable later)

Click Next

Step 3: OS Tab

  • Storage: local
  • ISO image: ubuntu-24.04-live-server-amd64.iso
  • Type: Linux
  • Version: 6.x - 2.6 Kernel

Click Next

Step 4: System Tab

  • Graphic card: Default (SPICE)
  • Machine: Default (i440fx)
  • BIOS: Default (SeaBIOS)
  • SCSI Controller: VirtIO SCSI
  • Qemu Agent: (optional, can enable later)

Click Next

Step 5: Disks Tab

  • Storage: rpool
  • Disk size (GiB): 30
  • Format: Qemu image format (qcow2)
  • Cache: Write back
  • Discard: (optional, for SSD optimization)

Click Next

Step 6: CPU Tab

  • Sockets: 1
  • Cores: 2
  • Type: Default (kvm64)

Click Next

Step 7: Memory Tab

  • Memory (MiB): 4096
  • Ballooning Device: (optional)

Click Next

Step 8: Network Tab

  • Bridge: vmbr2
  • VLAN Tag: (none)
  • Firewall: (unchecked for now)
  • Model: VirtIO (paravirtualized)

Click Next

vmbr2 Configuration

This VM uses the internal private network (vmbr2) with NAT. The Nginx Proxy will handle external access to Rocket.Chat.

Step 9: Confirm Tab

Review settings: - Name: rocketchat - VM ID: 101 - CPU: 2 cores - Memory: 4096 MiB - Disk: 30 GiB on rpool - Network: vmbr0

Click Finish

Step 10: Start VM and Install Ubuntu

  1. Select VM 101 from the list
  2. Click Start button
  3. Click Console to open VNC viewer
  4. Press Enter to boot from ISO

Step 11: Ubuntu Installation

Follow the Ubuntu Server installation wizard:

Language: English

Keyboard Layout: Your preferred layout

Network Configuration: - Select the network interface (ens18) - Choose Configure network manually - Enter the following: - IP Address: 192.168.192.101 - Netmask: 255.255.192.0 (/18) - Gateway: 192.168.192.5 - Name servers: 8.8.8.8, 1.1.1.1

Proxy: Leave blank (unless required)

Mirror: Default is fine

Storage: - Use entire disk - Accept default partitioning

Profile: - Your name: Administrator - Server name: rocketchat - Username: admin - Password: [choose strong password] - Confirm password

SSH: - [x] Install OpenSSH server - [ ] Import SSH identity (skip for now)

Featured Server Snaps: - Select rocketchat snap for easy installation - Or skip all and install manually (see Rocket.Chat Installation)

Complete Installation: - Wait for installation to finish - Remove installation medium (Proxmox will handle this) - Reboot

Step 12: Post-Installation

After reboot:

  1. VM will boot from hard disk
  2. Login with your created user
  3. Verify IP address: 
    ip addr show
  4. Verify gateway: 
    ip route show
  5. Test connectivity: 
    ping google.com
  6. Update system: 
    sudo apt update && sudo apt upgrade -y

Step 13: Document IP Address

Record IP Address

The static IP 192.168.192.101 has been configured. You will need it for: - Nginx reverse proxy configuration - Monitoring setup - SSH access

Add to your IP inventory table: 

rocket-chat | 101 | vmbr2 | 192.168.192.101 | chat.example.com | Rocket.Chat Port 3000

Verification

  • [ ] VM 101 created with correct specifications
  • [ ] Ubuntu 24.04 LTS installed
  • [ ] Can login via console
  • [ ] IP address assigned via DHCP
  • [ ] Internet connectivity confirmed
  • [ ] System updated
  • [ ] IP address documented

Post-Creation Configuration

Disable IPv6 (Optional)

If not using IPv6:

sudo nano /etc/sysctl.conf

Add: 

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

Apply: 

sudo sysctl -p

Set Static IP (Optional - Already Configured During Install)

If you need to modify the static IP configuration:

sudo nano /etc/netplan/00-installer-config.yaml

Edit to: 

network:
  version: 2
  ethernets:
    ens18:
      dhcp4: no
      addresses:
        - 192.168.192.101/18
      routes:
        - to: default
          via: 192.168.192.5
      nameservers:
        addresses:
          - 8.8.8.8
          - 1.1.1.1

Apply: 

sudo netplan apply

Next Steps

Proceed to: - Nextcloud VM - VM-102 - Or Rocket.Chat Installation if all VMs created