# AmazonStartEc2InstancesParameters Object

## Description

Parameters for the Amazon Start EC2 Instances action.

## Properties

### credentialIds

Registered credentials to use with the action. One and only one credential must be specified.

Type: Array of `string`

Required: Yes

### instances

List of EC2 instances that will be started. 

Type: Array of [StartEc2InstancesInstance](https://docs.skeddly.com/data-types/startec2instancesinstance-object) objects

Required: No

### instanceNameComparison

*Deprecated*

Comparison to use when identifying EC2 instances by `Name` tag. Required when `instanceIdentificationMethod` is `by-instance-name-tag`. Note, currently `compareType` must be `equals`.

Type: [InstanceNameComparison](https://docs.skeddly.com/data-types/instancenamecomparison-object-1) object.

Required: Conditional

### instanceIdentificationMethod

*Deprecated*

Method of identifying the EC2 instances.

Type: `string`

Valid Values:

* `all-instances`
* `by-instance-id`
* `by-instance-name-tag`
* `by-resource-tag`

Required: Yes

### isCheckReachability

Indicates whether to check instance reachability after starting.

Type: `boolean`

Required: No

Default: `false`

### isSendEmailOnReachabilityFailure

Indicates whether to send an email if reachability fails. Ignored when `isCheckReachability` is not `true`.

Type: `boolean`

Required: No

Default: `false`

### loadBalancerName

Name of the classic Elastic Load Balancer to register with when the EC2 instance is started.

Type: `string`

Required: No

### regionNames

Regions to use with the action. Omit or specify `null` to include "all regions".

Type: Array of `string`

Required: No

### resourceTagComparison

*Deprecated*

Comparison to use when identifying instances by resource tag. Required when `instanceIdentificationMethod` is `by-resource-tag`.

Type: [ResourceTagComparison](https://docs.skeddly.com/data-types/resourcetagcomparison-object-1) object.

Required: Conditional

### resourceTagComparisons

List of resource tag comparisons to use when matching EC2 instances.

Type: List of [ResourceTagComparison](https://docs.skeddly.com/data-types/resourcetagcomparison-object-1) objects.

Required: No

### resumeAutoScalingProcesses

Indicates whether to resume Auto Scaling processes for any Auto Scaling groups controlling the EC2 instances.

Type: `string`

Valid Values:

* `none`
* `all`

Required: No

Default: `none`

### stopTimeInSeconds

Time (in seconds) after which the EC2 instances will be stopped.

Type: `integer`

Required: No

## Sample JSON

```javascript
{
    "credentialIds": [
        "cred-00000001"
    ],
    "regionNames": [
        "us-east-1"
    ],

    "instances": [
        {
            "instanceId": "i-11111111",
            "elasticIp": "1.2.3.4"
        }
    ],

    "loadBalancerName": null,
    "resumeAutoScalingProcesses": "none",

    "isCheckReachability": false
    "isSendEmailOnReachabilityFailure": false,

    "stopTimeInSeconds": 43200
}
```