111 lines
2.8 KiB
Markdown
111 lines
2.8 KiB
Markdown
# Terraform Deployment – Week 2 Assignment
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This repository contains Terraform configurations for provisioning infrastructure on ESXi and Azure.
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All sensitive information (e.g. SSH key files, passwords) and custom values are handled using Terraform variables stored in a separate file.
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```mermaid
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graph TD
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subgraph ESXi omgeving
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ESXiNIC[NIC]:::existing
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ESXivSwitch[vSwitch]
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Portgroup[Portgroup]
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ESXivSwitch --> ESXiNIC
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ESXiNIC --> Portgroup
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Web1[Webserver 1]
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Web2[Webserver 2]
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DB[Databaseserver]
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Portgroup --> Web1
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Portgroup --> Web2
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Portgroup --> DB
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end
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subgraph Azure
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VNet[Virtual Network]
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Subnet[Subnet]
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NIC[NIC]
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NSG["NSG (SSH open)"]
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VM[Linux VM]
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PIP[Public IP]
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VNet --> Subnet
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Subnet --> NIC
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NIC --> VM
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NSG --> NIC
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VM --> PIP
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end
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subgraph Data
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AzurePublicKey["SSH Public Key (azure.pub)"]
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AzurePrivateKey["SSH Private Key (azure)"]
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SkylabPublicKey["SSH Public Key (skylab.pub)"]
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Userdata[Userdata]
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AzureCloudInit[Azure Cloudinit]
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VMinfo["Output file: vm_info.txt"]
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end
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SkylabPublicKey --> Userdata
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AzurePrivateKey --> Userdata
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AzurePublicKey --> AzureCloudInit
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Userdata --> Web1
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Userdata --> Web2
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Userdata --> DB
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AzureCloudInit --> VM
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Web1 --> VMinfo
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Web2 --> VMinfo
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DB --> VMinfo
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VM --> VMinfo
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classDef existing stroke:#268b26
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```
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## Azure
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- Complete network setup:
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- Virtual Network
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- Subnet
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- Network Security Group
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- NIC
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- One Ubuntu 24.04 VM.
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- VM type: `Standard_B2ats_v2`
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- Public IP address enabled
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- The `iac` user is created using cloud-init
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- `azure.pub` is uploaded as public key.
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- A file `/home/iac/hello.txt` containing `Hello World` is created using cloud-init
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- VM public and private IP address is stored in the `vm_info.txt` file.
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## ESXi
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- Creates three Ubuntu 24.04 VMs.
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- 2 `webserver`
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- 1 `databaseserver`
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- Each VM is provisioned with 1 vCPU and 2 GB RAM.
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- The `skylab` user is created using cloud-init
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- `skylab.pub` is uploaded as public key.
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- `azure` private key us uploaded to access the Azure VM.
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- A SSH config file is created with info for connecting to the Azure VM.
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- sudo access.
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- no password prompt.
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- The packages `wget` and `ntpdate` are installed with cloud-init.
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- VM private IP addresses are stored in the `vm_info.txt` file.
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## Demo
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This demo shows:
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1. Applying the Terraform plan
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- `terraform apply --auto-approve`
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- This shows the ip addresses of the VM's in the output.
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2. Opening an SSH session to one of the ESXi VMs
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- `ssh -i /home/student/.ssh/skylab skylab@192.168.1.115`
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3. Opening an SSH session to one of the Azure VMs
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- `ssh azurevm` (using SSH config file)
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4. Showing the content of the `hello.txt` file.
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- `cat hello.txt` |