Use multiple ssh keys for multiple GitHub accounts

github-multi-account-ssh-keys.md

Use multiple SSH keys for multiple GitHub accounts seamlessly

1. Create and add SSH keys for each account

Follow guidelines from GitHub: https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent

2. Modify ssh and git config

• Add ssh config

# Default GitHub
Host github.com
  HostName github.com
  User git
  IdentityFile ~/.ssh/id_rsa

# For cilium repositories
Host github-cilium
  HostName github.com
  User git
  IdentityFile ~/.ssh/cilium_id_rsa

# For Trung-DV repositories
Host github-trungdv
  HostName github.com
  User git
  IdentityFile ~/.ssh/trungdv_id_rsa

• Add config to ~/.gitconfig

; Default gitaccount
[url "github.com:"]
  insteadOf = https://github.com
; Specific account for cilium's repositories
[url "github-cilium:cilium"]
  insteadOf = https://github.com/cilium
; Specific account for personal repositories
[url "github-trungdv:trungdv"]
  insteadOf = https://github.com/trung-dv

or

git config --global url."github.com:".insteadOf "https://github.com"
git config --global url."github-cilium:cilium".insteadOf "https://github.com/cilium"

From now on, you can clone repositories by using https url without worrying about the account you are using.

 $ git clone https://github.com/trung-dv/private
Cloning into 'private'...
remote: Enumerating objects: 928, done.
remote: Counting objects: 100% (748/748), done.
remote: Compressing objects: 100% (439/439), done.
remote: Total 928 (delta 439), reused 558 (delta 270), pack-reused 180 (from 1)
Receiving objects: 100% (928/928), 3.96 MiB | 7.34 MiB/s, done.
Resolving deltas: 100% (553/553), done.