• Github Ssh Key Generation
• Ssh Key Github
• Windows Add Ssh Keys Github

SSH keys are created using a key generation tool. The SSH command line tool suite includes a keygen tool. Most git hosting providers offer guides on how to create an SSH Key. Generate an SSH Key on Mac and Linux. Both OsX and Linux operating systems have comprehensive modern terminal applications that ship with the SSH suite installed.

Today’s post is for developers. If you use the Git version control system with a service such as GitHub, GitLab or Bitbucket to host and manage your projects source codes, you know that by default Git connects to remotes using the HTTPS protocol, which requires you to enter username and password every time you run a command such as git pull or git push.

Using the SSH protocol, you can connect and authenticate to servers to use their services. The three mentioned services allow Git to connect via SSH instead of HTTPS. Connecting with public key encryption dispenses typing username and password for every Git command.

You are going to see in this post how to use GitHub, GitLab and Bitbucket with SSH.

Make sure an SSH client in installed

GitHub brings together the world’s largest community of developers to discover, share, and build better software. From open source projects to private team repositories, we’re your all-in-one platform for collaborative development. When creating container services, you will need an SSH RSA key for access. Use the following articles to create your SSH RSA Key: Pageant enables agent forwarding. This means that you can SSH from any of the master nodes directly to any of the agent nodes. Here are the steps to enable this: Download. For recommendations, see options for SSH keys. Generating a new SSH key pair. If you want to create: An ED25519 key, read ED25519 SSH keys. An RSA key, read RSA SSH keys. ED25519 SSH keys. The book Practical Cryptography With Go suggests that ED25519 keys are more secure and performant than RSA keys. We have tried to keep these instructions as platform agnostic as possible, but several steps show command line tools for interacting with github. You can use whatever tools you'd like, but you will have to translate these instructions for your tools. JefferyWang 这世界有多么不给力，你就应该多么给自己力.

In order to connect using the SSH protocol, an SSH client must be installed on your system. If you use openSUSE, it should be already installed by default.

Just to make sure, open the terminal and run:

That command should output the version number of the SSH client being used:

In case the system informs that the ssh command was not found, you can install the OpenSSH client running:

Check for existing SSH keys

To connect using the SSH protocol, you need an SSH key pair (one private and the other public). If you have never used SSH, you can safely skip this topic and move on to the next. If you have ever used SSH (for instance, to remotely access a server), probably you already have an SSH key pair, in which case you don’t need to generate a new key pair.

To see if existing SSH keys are present, run:

That command should list the contents of the ~/.ssh folder, in which the SSH client stores its configuration files:

If you receive an error that there is no ~/.ssh directory or there are no files in it, don’t worry: it means you haven’t created an SSH key pair yet. If that is the case, proceed to the next topic.

By default, public SSH keys are named:

• id_dsa.pub;
• id_ecdsa.pub;
• id_ed25519.pub; or
• id_rsa.pub.

Inside my ~/.ssh folder, I have an SSH key pair (id_rsa.pub is the public key and id_rsa is the private key) created a year ago (Jul 18 2018).

For security reasons, it is recommended that you generate a new SSH key pair at least once a year. If you already have an SSH key pair that was created more than a year ago, it is recommended that you proceed to the next topic.

If you already have an SSH key pair and want to reuse it, you can skip the next topic.

Generate a new SSH key pair

To generate a new SSH key pair, run the following command (replace your_email@example.com with your email address):

It asks you where to save the private key (id_rsa).

Press Enter to accept the default location.

If you already have a private key, it asks whether it should overwrite:

If that happens, type y and press Enter.

Then, enter and re-enter a passphrase (think of it as a kind of password):

The SSH key pair is created in ~/.ssh.

The whole interaction should look similar to the following:

Add the private SSH key to the ssh-agent

If you don’t want to type your passphrase each time you use your SSH keys, you need to add it to the ssh-agent, which is a program that runs in background while you are logged in to the system and stores your keys in memory.

To start the ssh-agent in background, run the following:

That command outputs the ssh-agentprocess identifier:

Then, add your SSH private key to the ssh-agent:

Type your passphrase and press Enter:

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The command confirms that the private SSH key has been added to the ssh-agent:

Add the public SSH key to your account

Once you have an SSH key and have added it to the ssh-agent, you can set up connecting via SSH. Let’s see how to do that for each of the three servers: GitHub, GitLab and Bitbucket.

In all the three cases, the process is similar. Start by copying your public SSH key (~/.ssh/id_rsa.pub) file contents to the clipboard using the xclip command:

xclip is a command line utility that allows access to the graphical interface clipboard from the terminal. If it is not installed, you can install it running:

GitHub

Using a browser, go to the GitHub home page at github.com and sign in to your account.

In the upper-right corner of the page, click your profile photo, then click Settings:

In the user settings sidebar, click SSH and GPG keys. Then click New SSH key.

Fill in the Title field with a descriptive label for the new key (for example, the name of your computer) and paste your public key into the Key field. Finally, click Add SSH key:

Now the key appears in the list of SSH keys associated with your account:

GitLab

Using a browser, go to the GitLab home page at gitlab.com and sign in to your account.

In the upper-right corner of the page, click your profile photo, then click Settings:

In the User Settings sidebar, click SSH Keys.

Paste your public key in the Key field. Fill in the Title field with a descriptive label for the new key (for example, the name of your computer). Finally, click Add key:

Now the key appears in the list of SSH keys associated with your account:

Bitbucket

Using a browser, go to the Bitbucket home page at bitbucket.org and log in to your account.

In the lower-left corner of the page, click your profile photo, then click Bitbucket settings:

In the Settings sidebar, in the Security section, click SSH keys. Then, click Add key.

Fill in the Label field with a descriptive label for the new key (for example, the name of your computer) and paste your public key into the Key field. Finally, click Add key:

Now the key appears in the list of SSH keys associated with your account:

Test connecting via SSH

GitHub, GitLab and Bitbucket allow you to test whether SSH connection has been set up correctly before actually using it with Git.

GitHub

After you’ve added your SSH key to your GitHub account, open the terminal and run:

That command attempts an SSH remote access to GitHub.

If that is the first time you connect to GitHub via SSH, the SSH client asks you if it can trust the public key of the GitHub server:

Type yes and press Enter. The SSH client adds GitHub to the list of trusted hosts:

Once added to the list of known hosts, you won’t be asked about GitHub’s public key again.

As this remote access via SSH is provided by GitHub just for testing, not for actual use, the server informs that you have successfully authenticated and terminates the connection:

If you completed the test successfully, now you can use SSH with GitHub.

The whole interaction should look similar to the following:

GitLab

If you have added your SSH key to your GitLab account, the test is very similar:

If you completed the test successfully, now you can use SSH with GitLab.

Bitbucket

If you have added your SSH key to your Bitbucket account, the test is very similar:

If you completed the test successfully, now you can use SSH with Bitbucket.

Clone a repository using SSH

Now that we’ve got our SSH keys set up, let’s see how to clone a Git repository using SSH instead of HTTPS.

GitHub

At GitHub, go to a project’s repository, click Clone or download and copy the URL to clone the repository using SSH:

The URL of a GitHub repository looks like:

Open the terminal and run the git clone command passing the copied URL as argument.

Tip: to paste into the terminal, use Ctrl + Shift + V.

Note that now Git clones the repository without asking for a password:

GitLab

At GitLab, go to a project’s repository, click Clone and copy the URL to clone the repository using SSH:

The URL of a GitLab repository looks like:

Open the terminal and run the git clone command passing the copied URL as argument:

Note that now Git clones the repository without asking for a password.

Bitbucket

At Bitbucket, go to a project’s repository, click Clone and copy the command to clone the repository using SSH:

Note that, differently from GitHub and GitLab that present the URL, Bitbucket presents the entire git clone command, including the URL.

The URL of a Bitbucket repository looks like:

Open the terminal, paste and run the command you copied from Bitbucket:

Note that now Git clones the repository without asking for a password.

Reconfigure existing repositories to use SSH

The repositories we clone from now on using SSH will continue to use SSH for future Git commands such as git pull and git push. But existing local repositories, previously cloned with HTTPS, will continue to use HTTPS, unless we set them up to use SSH.

To do that, open the terminal and change the current directory to a local repository.

List the existing remote repositories and their URLs with:

That command should output something like:

Change your remote repository’s URL with:

Run git remote -v once more to verify that the remote repository’s URL has changed:

Great. That done, Git will use SSH, instead of HTTPS, to synchronize that local repository with its remote equivalent.

References

I hope those tips can be useful to you as they have been to me since I started using Git. If you have any questions or trouble, don’t hesitate to comment! See you!

And always remember: have a lot of fun…

This Terraform template was based on this Azure Quickstart Template. Changes to the ARM template that may have occurred since the creation of this example may not be reflected here.

OpenShift Origin with Username / Password

Current template deploys OpenShift Origin 1.5 RC0.

This template deploys OpenShift Origin with basic username / password for authentication to OpenShift. You can select to use either CentOS or RHEL for the OS. It includes the following resources:

Resource	Properties
Virtual Network	Address prefix: 10.0.0.0/16 Master subnet: 10.0.0.0/24 Node subnet: 10.0.1.0/24
Load Balancer	2 probes and two rules for TCP 80 and TCP 443
Public IP Addresses	OpenShift Master public IP OpenShift Router public IP attached to Load Balancer
Storage Accounts	2 Storage Accounts
Virtual Machines	Single master User-defined number of nodes All VMs include a single attached data disk for Docker thin pool logical volume

If you have a Red Hat subscription and would like to deploy an OpenShift Container Platform (formerly OpenShift Enterprise) cluster, please visit: https://github.com/Microsoft/openshift-container-platform

Generate SSH Keys

You'll need to generate an SSH key pair in order to provision this template. Ensure that you do not include a passcode with the private key.
If you are using a Windows computer, you can download puttygen.exe. You will need to export to OpenSSH (from Conversions menu) to get a valid Private Key for use in the Template.
From a Linux or Mac, you can just use the ssh-keygen command. Once you are finished deploying the cluster, you can always generate a new key pair that uses a passphrase and replaces the original one used during initial deployment.

Create Key Vault to store SSH Private Key

You will need to create a Key Vault to store your SSH Private Key that will then be used as part of the deployment.

1. Create Key Vault using Powershell
   a. Create new resource group: New-AzureRMResourceGroup -Name 'ResourceGroupName' -Location 'West US'
   b. Create key vault: New-AzureRmKeyVault -VaultName 'KeyVaultName' -ResourceGroup 'ResourceGroupName' -Location 'West US'
   c. Create variable with sshPrivateKey: $securesecret = ConvertTo-SecureString -String '[copy ssh Private Key here - including line feeds]' -AsPlainText -Force
   d. Create Secret: Set-AzureKeyVaultSecret -Name 'SecretName' -SecretValue $securesecret -VaultName 'KeyVaultName'
   e. Enable the Key Vault for Template Deployments: Set-AzureRmKeyVaultAccessPolicy -VaultName 'KeyVaultName' -ResourceGroupName 'ResourceGroupName' -EnabledForTemplateDeployment

2. Create Key Vault using Azure CLI 1.0
   a. Create new Resource Group: azure group create <name> <location>
   Ex: azure group create ResourceGroupName 'East US'
   b. Create Key Vault: azure keyvault create -u <vault-name> -g <resource-group> -l <location>
   Ex: azure keyvault create -u KeyVaultName -g ResourceGroupName -l 'East US'
   c. Create Secret: azure keyvault secret set -u <vault-name> -s <secret-name> --file <private-key-file-name>
   Ex: azure keyvault secret set -u KeyVaultName -s SecretName --file ~/.ssh/id_rsa
   d. Enable the Keyvvault for Template Deployment: azure keyvault set-policy -u <vault-name> --enabled-for-template-deployment true
   Ex: azure keyvault set-policy -u KeyVaultName --enabled-for-template-deployment true
   

3. Create Key Vault using Azure CLI 2.0
   a. Create new Resource Group: az group create -n <name> -l <location>
   Ex: az group create -n ResourceGroupName -l 'East US'
   b. Create Key Vault: az keyvault create -n <vault-name> -g <resource-group> -l <location> --enabled-for-template-deployment true
   Ex: az keyvault create -n KeyVaultName -g ResourceGroupName -l 'East US' --enabled-for-template-deployment true
   c. Create Secret: az keyvault secret set --vault-name <vault-name> -n <secret-name> --file <private-key-file-name>
   Ex: az keyvault secret set --vault-name KeyVaultName -n SecretName --file ~/.ssh/id_rsa
   

4. Clone the Openshift repository here
   a. Note the local script path, this will be needed for remote-execs on the remote machines.
   

Deploy Template

Once you have collected all of the prerequisites for the template, you can deploy the template via terraform.

Monitor deployment via Terraform and get the console URL from outputs of successful deployment which will look something like (if using sample parameters file and 'West US 2' location):

https://me-master1.westus2.cloudapp.azure.com:8443/console

The cluster will use self-signed certificates. Accept the warning and proceed to the login page.

NOTE

Ensure combination of openshiftMasterPublicIpDnsLabelPrefix, and nodeLbPublicIpDnsLabelPrefix parameters, combined with the deployment location give you globally unique URL for the cluster or deployment will fail at the step of allocating public IPs with fully-qualified-domain-names as above.

NOTE

This template deploys a bastion host, merely for the connection provisioner and allowing remote-exec to run commands on machines without public IPs; notice the specific dependencies on the order in which VMs are created for this to work properly.

NOTE

The OpenShift Ansible playbook does take a while to run when using VMs backed by Standard Storage. VMs backed by Premium Storage are faster. If you want Premimum Storage, select a DS or GS series VM.

Be sure to follow the OpenShift instructions to create the ncessary DNS entry for the OpenShift Router for access to applications.

Post-Deployment Operations

This template creates an OpenShift user but does not make it a full OpenShift user. To do that, please perform the following.

1. SSH in to master node

2. Execute the following command:

Additional OpenShift Configuration Options

You can configure additional settings per the official OpenShift Origin Documentation.

Few options you have

1. Deployment Output

a. openshiftConsoleUrl the openshift console url
b. openshiftMasterSsh ssh command for master node
c. openshiftNodeLoadBalancerFQDN node load balancer

Github Ssh Key Generation

get the deployment output data

Ssh Key Github

a. portal.azure.com -> choose 'Resource groups' select your group select 'Deployments' and there the deployment 'Microsoft.Template'. As output from the deployment it contains information about the openshift console url, ssh command and load balancer url.
b. With the Azure CLI : azure group deployment list <resource group name>

Windows Add Ssh Keys Github

2. add additional users. you can find much detail about this in the openshift.org documentation under 'Cluster Administration' and 'Managing Users'. This installation uses htpasswd as the identity provider. To add more user ssh in to master node and execute following command:

Now this user can login with the 'oc' CLI tool or the openshift console url.