# Work With Multiple Git accounts

##  Generate SSH key

### Github

Full instruction is [here](https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/).

1. Run command.
```shell
ssh-keygen -t ed25519 -C "your_email@organization_domain"
```
2. Specify filename in `%USERPROFILE%/.ssh/github`.
3. Add generated public SSH key into [Github account](https://github.com/settings/keys). [Instruction](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account).

### Bitbucket

Full instruction is [here](https://support.atlassian.com/bitbucket-cloud/docs/set-up-an-ssh-key/)

1. Run command
```shell
ssh-keygen -t ed25519 -C "your_email@organization_domain"
```
2. Specify filename `%USERPROFILE%/.ssh/bitbucket`
3. Add generated public SSH key into [Bitbucket account](https://bitbucket.org/account/settings/ssh-keys/). [Instruction](https://support.atlassian.com/bitbucket-cloud/docs/add-access-keys/)

### Gitlab

Full instruction is [here](https://docs.gitlab.com/ee/user/ssh.html)

1. Run command
```shell
ssh-keygen -t ed25519 -C "your_email@organization_domain"
```
2. Specify filename `%USERPROFILE%/.ssh/gitlab`
3. Add generated public SSH key into [Gitlab account](https://gitlab.com/-/profile/keys). [Instruction](https://docs.gitlab.com/ee/user/ssh.html#add-an-ssh-key-to-your-gitlab-account)

## SSH-agent

1. Kill SSH-agent if exists and run in the background
```shell
killall ssh-agent; eval "$(ssh-agent)"
```

2. Add private SSH keys to the ssh-agent
```shell
ssh-add ~/.ssh/github
ssh-add ~/.ssh/bitbucket
ssh-add ~/.ssh/gitlab
```

3. Optional. Copy SSH keys into the Windows directory or any other WSL
```shell
cp -b ~/.ssh/github /mnt/c/Users/%USERPROFILE%/.ssh/
cp -b ~/.ssh/bitbucket /mnt/c/Users/%USERPROFILE%/.ssh/
```

4. Test your connection
```shell
ssh -T git@github.com
ssh -T git@bitbucket.org
ssh -T git@gitlab.com
```

## Configurate `ssh-agent` for multiple SSH keys

The next steps should be done in each environment where you need access to Git (Windows, WSLs, etc.)

1. Create config using `nano`
```shell
nano ~/.ssh/config
```

2. Put the next config into `%USERPROFILE%/.ssh/config`
```shell
Host github.com
        HostName github.com
        User git
        IdentityFile ~/.ssh/github

Host github.com-username
        HostName github.com
        User git
        IdentityFile ~/.ssh/username

Host bitbucket.org
        HostName bitbucket.org
        User git
        IdentityFile ~/.ssh/bitbucket

Host gitlab.com
        HostName gitlab.com
        User git
        PreferredAuthentications publickey
        IdentityFile ~/.ssh/gitlab
```

3. Optional. Copy SSH config into each environment
```shell
cp -b ~/.ssh/config /mnt/c/Users/%USERPROFILE%/.ssh/
```

4. Set up autostarting `ssh-agent`
   1. Update `%USERPROFILE%/.profile` on the next way using:
      ```shell
      nano .profile
      ```
   2. In the end of the file, put the next
   ```shell
   if [ "$BASH" ]; then
   if [ -f ~/.bashrc ]; then
   . ~/.bashrc
   eval "$(ssh-agent -s)"
   fi
   fi
   
   mesg n 2> /dev/null || true
   ```

## Cloning repositories using different accounts

By default,
```shell
git clone git@github.com:organization/remote-repository.git
git clone git@bitbucket.org:organization/remote-repository.git
git clone git@gitlab.com:organization/remote-repository.git
```

For specific account,
```shell
git clone git@github.com-username:organization/remote-repository.git
```