Add 'key-name' option

Add one new option to workflow file:

key-name: Specifies SSH key-pair name to assign to an instance.  This is
useful for SSHing into an instance for debugging.

Signed-off-by: Tony Hutter <hutter2@llnl.gov>

Modified cherry-pick of:

- machulav#156

Because `block-device-mappings` was merged separately in:

- machulav#229

Author: tonyhutter

README.md

@@ -224,6 +224,7 @@ Now you're ready to go!
 | `ec2-volume-size` | Optional | Defines the size of the EC2 Volume in GB, will use the AWS default of 8 GB if not provided. |
 | `ec2-device-name` | Optional | Defines the device name used for the root volume. |
 | `ec2-volume-type` | Optional | Defines the device type used for the root volume. |
+| `key-name` | Optional | Assign SSH key-pair name to an instance.  This can be useful for SSHing into an instance for debugging. |
 
 ### Environment variables
 
@@ -286,6 +287,7 @@ jobs:
             [
               {"DeviceName": "/dev/sda1", "Ebs": {"VolumeSize": 100, "VolumeType": "gp3"}}
             ]
+          key-name: my-ssh-key # optional
   do-the-job:
     name: Do the job on the runner
     needs: start-runner # required to start the main job when the runner is ready

action.yml

@@ -135,6 +135,11 @@ inputs:
       Example: '["git", "docker.io", "nodejs"]'
     required: false
     default: '[]'
+  key-name:
+    description: >-
+      Assign SSH key-pair name to an instance.  This can be useful for SSHing into an instance for debugging.
+    required: false
+
 outputs:
   label:
     description: >-

src/aws.js

@@ -126,6 +126,7 @@ async function createEc2InstanceWithParams(imageId, subnetId, securityGroupId, l
     TagSpecifications: config.tagSpecifications,
     InstanceMarketOptions: buildMarketOptions(),
     MetadataOptions: Object.keys(config.input.metadataOptions).length > 0 ? config.input.metadataOptions : undefined,
+    KeyName: config.input.keyName,
   };
 
   if (config.input.ec2VolumeSize !== '' || config.input.ec2VolumeType !== '') {

src/config.js

@@ -28,6 +28,7 @@ class Config {
       availabilityZonesConfig: core.getInput('availability-zones-config'),
       metadataOptions: JSON.parse(core.getInput('metadata-options') || '{}'),
       packages: JSON.parse(core.getInput('packages') || '[]'),
+      keyName: core.getInput('key-name'),
     };
 
     // Get the AWS_REGION environment variable