Generate Ssh Key To Vm
Mar 31, 2020 On Linux or macOS workstations, you can generate a key by using the ssh-keygen tool. Open a terminal on your workstation and use the ssh-keygen command to generate a new key. So users have to generate key pairs somewhere else. You’ll learn how to generate and add SSH key pair to Google Compute Engine VM instance in this post. SSH keys can be added to GCE per project basis and per VM instance basis. I’m looking into adding a project wide SSH key pair in this post.
You generate an SSH key through macOS by using the Terminal application. Once you upload a valid public SSH key, the Triton Compute Service uses SmartLogin to copy the public key to any new SmartMachine you provision.
Joyent recommends RSA keys because the node-manta CLI programs work with RSA keys both locally and with the ssh agent. DSA keys will work only if the private key is on the same system as the CLI, and not password-protected.
About Terminal
Terminal is the terminal emulator which provides a text-based command line interface to the Unix shell of macOS.
To open the macOS Terminal, follow these steps:
- In Finder, choose Utilities from the Applications folder.
- Find Terminal in the Utilities listw.
- Open Terminal.
The Terminal window opens with the commandline prompt displaying the name of your machine and your username.
Generating an SSH key
An SSH key consists of a pair of files. One is the private key, which should never be shared with anyone. The other is the public key. The other file is a public key which allows you to log into the containers and VMs you provision. When you generate the keys, you will use ssh-keygen to store the keys in a safe location so you can bypass the login prompt when connecting to your instances.
To generate SSH keys in macOS, follow these steps:
Enter the following command in the Terminal window.
This starts the key generation process. When you execute this command, the
ssh-keygenutility prompts you to indicate where to store the key.Press the ENTER key to accept the default location. The
ssh-keygenutility prompts you for a passphrase.- Type in a passphrase. You can also hit the ENTER key to accept the default (no passphrase). However, this is not recommended.
You will need to enter the passphrase a second time to continue.
After you confirm the passphrase, the system generates the key pair.
Your private key is saved to the id_rsa file in the .ssh directory and is used to verify the public key you use belongs to the same Triton Compute Service account.
| Never share your private key with anyone! |
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Your public key is saved to the id_rsa.pub;file and is the key you upload to your Triton Compute Service account. You can save this key to the clipboard by running this:
Importing your SSH key
Now you must import the copied SSH key to the portal.
- After you copy the SSH key to the clipboard, return to your account page.
- Choose to Import Public Key and paste your SSH key into the Public Key field.
- In the Key Name field, provide a name for the key. Note: although providing a key name is optional, it is a best practice for ease of managing multiple SSH keys.
- Add the key. It will now appear in your table of keys under SSH.
Troubleshooting
You may see a password prompt like this:
This is because:
- You did not enter the correct passphrase.
- The private key on your Macintosh (
id_rsa) does not match the public key stored with your Triton Compute Service account. - The public key was not entered correctly in your Triton account.
What are my next steps?
Right in the portal, you can easily create Docker containers, infrastructure containers, and hardware virtual machines.
In order to use the Terminal to create instances, set up triton and CloudAPI as well as the triton-docker commandline tool.
Terraform allows you to define and create complete infrastructure deployments in Azure. You build Terraform templates in a human-readable format that create and configure Azure resources in a consistent, reproducible manner. This article shows you how to create a complete Linux environment and supporting resources with Terraform. You can also learn how to install and configure Terraform.
Note
For Terraform specific support, please reach out to Terraform directly using one of their community channels:
The Terraform section of the community portal contains questions, use cases, and useful patterns.
For provider-related questions please visit the Terraform Providers section of the community portal.
Create Azure connection and resource group
Let's go through each section of a Terraform template. You can also see the full version of the Terraform template that you can copy and paste.
The provider section tells Terraform to use an Azure provider. To get values for subscription_id, client_id, client_secret, and tenant_id, see Install and configure Terraform.
Tip
If you create environment variables for the values or are using the Azure Cloud Shell Bash experience , you don't need to include the variable declarations in this section.
The following section creates a resource group named myResourceGroup in the eastus location:
In additional sections, you reference the resource group with ${azurerm_resource_group.myterraformgroup.name}.
Create virtual network
The following section creates a virtual network named myVnet in the 10.0.0.0/16 address space:
The following section creates a subnet named mySubnet in the myVnet virtual network:
Create public IP address
To access resources across the Internet, create and assign a public IP address to your VM. The following section creates a public IP address named myPublicIP:
Create Network Security Group
Network Security Groups control the flow of network traffic in and out of your VM. The following section creates a network security group named myNetworkSecurityGroup and defines a rule to allow SSH traffic on TCP port 22:
Create virtual network interface card
A virtual network interface card (NIC) connects your VM to a given virtual network, public IP address, and network security group. The following section in a Terraform template creates a virtual NIC named myNIC connected to the virtual networking resources you've created:
Create storage account for diagnostics
To store boot diagnostics for a VM, you need a storage account. These boot diagnostics can help you troubleshoot problems and monitor the status of your VM. The storage account you create is only to store the boot diagnostics data. As each storage account must have a unique name, the following section generates some random text:
Convert crt and key to pfx. Now you can create a storage account. The following section creates a storage account, with the name based on the random text generated in the preceding step:
Create virtual machine
The final step is to create a VM and use all the resources created. The following section creates a VM named myVM and attaches the virtual NIC named myNIC. The latest Ubuntu 16.04-LTS image is used, and a user named azureuser is created with password authentication disabled.
SSH key data is provided in the ssh_keys section. Provide a public SSH key in the key_data field.
Complete Terraform script
Generate Ssh Key Putty
To bring all these sections together and see Terraform in action, create a file called terraform_azure.tf and paste the following content:
Build and deploy the infrastructure
With your Terraform template created, the first step is to initialize Terraform. This step ensures that Terraform has all the prerequisites to build your template in Azure.
The next step is to have Terraform review and validate the template. This step compares the requested resources to the state information saved by Terraform and then outputs the planned execution. The Azure resources aren't created at this point.
How To Generate Ssh Key Pair
After you execute the previous command, you should see something like the following screen:
If everything looks correct and you're ready to build the infrastructure in Azure, apply the template in Terraform:
Generate Ssh Key Mac
Once Terraform completes, your VM infrastructure is ready. Obtain the public IP address of your VM with az vm show:
You can then SSH to your VM: