async function startEc2Instance()

in src/aws.js [142:180]
29 lines of code
3 McCabe index (conditional complexity)

async function startEc2Instance(label, githubRegistrationToken) {
  core.info(`Attempting to start EC2 instance using ${config.availabilityZones.length} availability zone configuration(s)`);

  const errors = [];

  // Try each availability zone configuration in sequence
  for (let i = 0; i < config.availabilityZones.length; i++) {
    const azConfig = config.availabilityZones[i];
    // Region is now always specified in the availability zone config
    const region = azConfig.region;
    core.info(`Trying availability zone configuration ${i + 1}/${config.availabilityZones.length}`);
    core.info(`Using imageId: ${azConfig.imageId}, subnetId: ${azConfig.subnetId}, securityGroupId: ${azConfig.securityGroupId}, region: ${region}`);

    try {
      const ec2InstanceId = await createEc2InstanceWithParams(
        azConfig.imageId,
        azConfig.subnetId,
        azConfig.securityGroupId,
        label,
        githubRegistrationToken,
        region
      );

      core.info(`Successfully started AWS EC2 instance ${ec2InstanceId} using availability zone configuration ${i + 1} in region ${region}`);
      return { ec2InstanceId, region };
    } catch (error) {
      const errorMessage = `Failed to start EC2 instance with configuration ${i + 1} in region ${region}: ${error.message}`;
      core.warning(errorMessage);
      errors.push(errorMessage);

      // Continue to the next availability zone configuration
      continue;
    }
  }

  // If we've tried all configurations and none worked, throw an error
  core.error('All availability zone configurations failed');
  throw new Error(`Failed to start EC2 instance in any availability zone. Errors: ${errors.join('; ')}`);
}