async function createEc2InstanceWithParams()

in src/aws.js [93:140]

• 35 lines of code
• 7 McCabe index (conditional complexity)

async function createEc2InstanceWithParams(imageId, subnetId, securityGroupId, label, githubRegistrationToken, region) {
  // If multiple instance types are provided, use EC2 Fleet (instant) to create an instance
  if (Array.isArray(config.input.ec2InstanceTypes) && config.input.ec2InstanceTypes.length > 0) {
    return await createEc2InstanceWithFleetParams(imageId, subnetId, securityGroupId, label, githubRegistrationToken, region);
  }

  // else, use RunInstances to create instance with fixed instance type
  // Region is always specified now, so we can directly use it
  const ec2ClientOptions = { region };
  const ec2 = new EC2Client(ec2ClientOptions);

  const userData = buildUserDataScript(githubRegistrationToken, label);
  core.info('Executing user data script: ' + userData.replace(githubRegistrationToken, '<redacted>'));

  const params = {
    ImageId: imageId,
    InstanceType: config.input.ec2InstanceType,
    MaxCount: 1,
    MinCount: 1,
    SecurityGroupIds: [securityGroupId],
    SubnetId: subnetId,
    UserData: Buffer.from(userData).toString('base64'),
    IamInstanceProfile: config.input.iamRoleName ? { Name: config.input.iamRoleName } : undefined,
    TagSpecifications: config.tagSpecifications,
    InstanceMarketOptions: buildMarketOptions(),
    MetadataOptions: Object.keys(config.input.metadataOptions).length > 0 ? config.input.metadataOptions : undefined,
  };

  if (config.input.ec2VolumeSize !== '' || config.input.ec2VolumeType !== '') {
    params.BlockDeviceMappings = [
      {
        DeviceName: config.input.ec2DeviceName,
        Ebs: {
          ...(config.input.ec2VolumeSize !== '' && { VolumeSize: config.input.ec2VolumeSize }),
          ...(config.input.ec2VolumeType !== '' && { VolumeType: config.input.ec2VolumeType }),
        },
      },
    ];
  }

  if (config.input.blockDeviceMappings.length > 0) {
    params.BlockDeviceMappings = config.input.blockDeviceMappings;
  }

  const result = await ec2.send(new RunInstancesCommand(params));
  const ec2InstanceId = result.Instances[0].InstanceId;
  return ec2InstanceId;
}