Question: We have a EC2 instance, and our capistrano setup requires ssh. To connect through ssh normally, I use a .pem file for connecting to the server. how do I utilize this .pem file when using capistrano to deploy?

Answer: 
In `deploy.rb` set these configuration values:

```
default_run_options[:pty] = true
ssh_options[:forward_agent] = true
ssh_options[:auth_methods] = ["publickey"]
ssh_options[:keys] = ["/path/to/key.pem"]

```

For Capistrano 3 use:

```
set :pty, true
set :ssh_options, {
  forward_agent: true,
  auth_methods: %w[publickey],
  keys: %w[/path/to/key.pem]
}

```
for capistrano 3 the syntax is somewhat different

```
set :pty, true

set :ssh_options, {
  forward_agent: true,
  auth_methods: ["publickey"],
  keys: ["/path/to/key.pem"]
}

```