You may want to install a SSH key manually, for instance if you wish to deploy to a service that uses SSH authentication but does not allow remote installation of keys.
In this case you can either use the deployment key which Scrutinizer already generated for your project or provide your own keypair. If you want to use your own keypair, simply register the private key with Scrutinizer and the public key with the remote service. We will automatically populate your build environment which the submitted keys.
Learn more about Generating SSH keys