There are many reasons you might want to push code via ssh but under different identities or profiles.
TLDR
Easily pushing up changes to one of the many git solutions is an essential part of any workflow and not likely to change anytime soon. Setting up ssh between local env and github, bitbucket etc is one of the first things we figure out on the developer journey. There may come a time when you don't have a separate machine setup for work or maybe you want to be able to push some code from your personal machine. Or you have a open source profile seperate from your professional profile.
Create ssh key pairs for each service or machine
Navigate to ~/.ssh and generate a new private, public key pair.
ssh-keygen -t rsa
You will be prompted to name the file, the convention that makes the most sense for me is <identifier>.<domain>.key for example personal.github.key or organization.domain.key.
Associate Domain, host with key
Navigate to ~/.ssh/config, if the file does not exist make it or open it in your favorite text editor. Add a config for each account.
...#### GITHUB#### Github PersonalHost personal.github.comHostName github.comUser gitAddKeysToAgent yesIdentityFile ~/.ssh/personal.github.keyIdentitiesOnly yes## Github <some-organization>Host <organization>.github.comHostName github.comUser gitAddKeysToAgent yesIdentityFile ~/.ssh/<organization>.github.key...
Add a custom domain to the local git repo config
When you git init a repo it creates a ./.git/ in this we can
[core]repositoryformatversion = 0filemode = truebare = falselogallrefupdates = trueignorecase = trueprecomposeunicode = true[remote "origin"]url = [email protected]:LucasZapico/.gitfetch = +refs/heads/*:refs/remotes/origin/*[pull]rebase = true
Example of my ssh config
Note the ip's are faked.
#### GITHUB#### Github PersonalHost personal.github.comHostName github.comUser gitAddKeysToAgent yesIdentityFile ~/.ssh/personal.github.keyIdentitiesOnly yes## Github <some-organization>Host <organization>.github.comHostName github.comUser gitAddKeysToAgent yesIdentityFile ~/.ssh/<organization>.github.key## Vultr AdminHost Vultr.comHostName <host-ip>IdentityFile ~/.ssh/personal.vultr.key#### LOCAL NETWORK MACHINES##Host 198.152.0.10IdentityFile ~/.ssh/machine1.local.key# proxmoxHost 198.152.1.341IdentityFile ~/.ssh/host.prox1.key# Fig ssh integration. Keep at the bottom of this file.Match allInclude ~/.fig/ssh#### REFERENCE### Make new key pair# `ssh-keygen -t rsa`# `ssh-keygen -t ed25519 -C "[email protected]"`##
Test Connections
ssh -T [email protected]