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There are four ways to manage SSH keys on your servers when automating deployment scripts:
Generate a new SSH key.Add to the ssh-agent Step 1: Open Terminal. Step 2: Type this below, using your GitHub's account email. Step 3: It will show up this text and you can hit Enter. Step 4: In this section you can hit Enter too or type secure passphrase ( more about passphrase ). Adding your SSH key to the ssh-agent. Before adding a new SSH key to the ssh-agent to manage your keys, you should have checked for existing SSH keys and generated a new SSH key. When adding your SSH key to the agent, use the default macOS ssh-add command, and not an application installed by macports, homebrew, or some other external source. At Creating a SSH key for GitHub: Open PuTTygen, generate a key and save your private key. Mark the key in the text area and paste it into your github account settings (SSH Public Keys→Add another public key). Check out the GitHub SSH guide for PuTTygen (keep your passphrase empty by the way) (give your key any name on GitHub).
- SSH agent forwarding
- HTTPS with OAuth tokens
- Deploy keys
- Machine users
This guide will help you decide what strategy is best for you.
- Generating a new SSH key. Open Terminal Terminal Git Bash. Paste the text below, substituting in your GitHub email address. $ ssh-keygen -t rsa -b 4096 -C '[email protected]' This creates a new ssh key, using the provided email as a label. Generating public/private rsa key pair.
- Verifying Added SSH Key in GitHub Account. Now that the SSH key has generated and added in our GitHub account, it is time we check the key with our GitHub account with the help of ssh and GitBash. Go to the Git Bash and type the following command: ssh -T email protected.
Git Generate Ssh Key Github Free
SSH agent forwarding
In many cases, especially in the beginning of a project, SSH agent forwarding is the quickest and simplest method to use. Agent forwarding uses the same SSH keys that your local development computer uses.
Pros
- You do not have to generate or keep track of any new keys.
- There is no key management; users have the same permissions on the server that they do locally.
- No keys are stored on the server, so in case the server is compromised, you don't need to hunt down and remove the compromised keys.
Cons
- Users must SSH in to deploy; automated deploy processes can't be used.
- SSH agent forwarding can be troublesome to run for Windows users.
Git Ssh Generate Key
Setup
- Turn on agent forwarding locally. See our guide on SSH agent forwarding for more information.
- Set your deploy scripts to use agent forwarding. For example, on a bash script, enabling agent forwarding would look something like this:
ssh -A serverA 'bash -s' < deploy.sh
HTTPS cloning with OAuth tokens
Generate Ssh Key Github
If you don't want to use SSH keys, you can use HTTPS with OAuth tokens.
Pros
- Anyone with access to the server can deploy the repository.
- Users don't have to change their local SSH settings.
- Multiple tokens (one for each user) are not needed; one token per server is enough.
- A token can be revoked at any time, turning it essentially into a one-use password.
- Generating new tokens can be easily scripted using the OAuth API
Cons
- You must make sure that you configure your token with the correct access scopes.
- Tokens are essentially passwords, and must be protected the same way.
Setup
See our guide on Git automation with tokens.
Deploy keys
You can launch projects from a GitHub repository to your server by using a deploy key, which is an SSH key that grants access to a single repository. GitHub attaches the public part of the key directly to your repository instead of a personal user account, and the private part of the key remains on your server. For more information, see 'Delivering deployments.'
Deploy keys with write access can perform the same actions as an organization member with admin access, or a collaborator on a personal repository. For more information, see 'Repository permission levels for an organization' and 'Permission levels for a user account repository.'
Pros
- Anyone with access to the repository and server has the ability to deploy the project.
- Users don't have to change their local SSH settings.
- Deploy keys are read-only by default, but you can give them write access when adding them to a repository.
Cons
- Deploy keys only grant access to a single repository. More complex projects may have many repositories to pull to the same server.
- Deploy keys are usually not protected by a passphrase, making the key easily accessible if the server is compromised.
Setup
![Create github ssh key Create github ssh key](/uploads/1/2/6/0/126076584/666690391.jpg)
- Run the
ssh-keygen
procedure on your server, and remember where you save the generated public/private rsa key pair. - In the upper-right corner of any GitHub page, click your profile photo, then click Your profile.
- On your profile page, click Repositories, then click the name of your repository.
- From your repository, click Settings.
- In the sidebar, click Deploy Keys, then click Add deploy key.
- Provide a title, paste in your public key.
- Select Allow write access if you want this key to have write access to the repository. A deploy key with write access lets a deployment push to the repository.
- Click Add key.
Machine users
If your server needs to access multiple repositories, you can create a new GitHub account and attach an SSH key that will be used exclusively for automation. Since this GitHub account won't be used by a human, it's called a machine user. You can add the machine user as a collaborator on a personal repository (granting read and write access), as an outside collaborator on an organization repository (granting read, write, or admin access), or to a team with access to the repositories it needs to automate (granting the permissions of the team).
Tip: Our terms of service state:
Accounts registered by 'bots' or other automated methods are not permitted.
This means that you cannot automate the creation of accounts. But if you want to create a single machine user for automating tasks such as deploy scripts in your project or organization, that is totally cool.
Pros
- Anyone with access to the repository and server has the ability to deploy the project.
- No (human) users need to change their local SSH settings.
- Multiple keys are not needed; one per server is adequate.
Cons
- Only organizations can restrict machine users to read-only access. Personal repositories always grant collaborators read/write access.
- Machine user keys, like deploy keys, are usually not protected by a passphrase.
Setup
- Run the
ssh-keygen
procedure on your server and attach the public key to the machine user account. - Give the machine user account access to the repositories you want to automate. You can do this by adding the account as a collaborator, as an outside collaborator, or to a team in an organization.