528 lines
22 KiB
Markdown
528 lines
22 KiB
Markdown
---
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description: |
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The amazon-ebsvolume Packer builder is like the EBS builder, but is intended to
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create EBS volumes rather than a machine image.
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layout: docs
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page_title: 'Amazon EBS Volume - Builders'
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sidebar_current: 'docs-builders-amazon-ebsvolume'
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---
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# EBS Volume Builder
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Type: `amazon-ebsvolume`
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The `amazon-ebsvolume` Packer builder is able to create Amazon Elastic Block
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Store volumes which are prepopulated with filesystems or data.
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This builder builds EBS volumes by launching an EC2 instance from a source AMI,
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provisioning that running machine, and then destroying the source machine,
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keeping the volumes intact.
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This is all done in your own AWS account. The builder will create temporary key
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pairs, security group rules, etc. that provide it temporary access to the
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instance while the image is being created.
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The builder does *not* manage EBS Volumes. Once it creates volumes and stores
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it in your account, it is up to you to use, delete, etc. the volumes.
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-> **Note:** Temporary resources are, by default, all created with the
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prefix `packer`. This can be useful if you want to restrict the security groups
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and key pairs Packer is able to operate on.
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## Configuration Reference
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There are many configuration options available for the builder. They are
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segmented below into two categories: required and optional parameters. Within
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each category, the available configuration keys are alphabetized.
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In addition to the options listed here, a
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[communicator](/docs/templates/communicator.html) can be configured for this
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builder.
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### Required:
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- `access_key` (string) - The access key used to communicate with AWS. [Learn
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how to set this.](/docs/builders/amazon.html#specifying-amazon-credentials)
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- `instance_type` (string) - The EC2 instance type to use while building the
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AMI, such as `m1.small`.
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- `region` (string) - The name of the region, such as `us-east-1`, in which
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to launch the EC2 instance to create the AMI.
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- `secret_key` (string) - The secret key used to communicate with AWS. [Learn
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how to set this.](/docs/builders/amazon.html#specifying-amazon-credentials)
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- `source_ami` (string) - The initial AMI used as a base for the newly
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created machine. `source_ami_filter` may be used instead to populate this
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automatically.
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### Optional:
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- `ebs_volumes` (array of block device mappings) - Add the block device
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mappings to the AMI. The block device mappings allow for keys:
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- `device_name` (string) - The device name exposed to the instance (for
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example, `/dev/sdh` or `xvdh`). Required for every device in the block
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device mapping.
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- `delete_on_termination` (boolean) - Indicates whether the EBS volume is
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deleted on instance termination.
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- `encrypted` (boolean) - Indicates whether to encrypt the volume or not
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- `kms_key_id` (string) - The ARN for the KMS encryption key. When
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specifying `kms_key_id`, `encrypted` needs to be set to `true`. For
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valid formats see *KmsKeyId* in the [AWS API docs -
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CopyImage](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_CopyImage.html).
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- `iops` (number) - The number of I/O operations per second (IOPS) that
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the volume supports. See the documentation on
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[IOPs](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_EbsBlockDevice.html)
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for more information
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- `no_device` (boolean) - Suppresses the specified device included in the
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block device mapping of the AMI
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- `snapshot_id` (string) - The ID of the snapshot
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- `virtual_name` (string) - The virtual device name. See the
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documentation on [Block Device
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Mapping](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_BlockDeviceMapping.html)
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for more information
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- `volume_size` (number) - The size of the volume, in GiB. Required if
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not specifying a `snapshot_id`
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- `volume_type` (string) - The volume type. `gp2` for General Purpose
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(SSD) volumes, `io1` for Provisioned IOPS (SSD) volumes, and `standard`
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for Magnetic volumes
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- `tags` (map) - Tags to apply to the volume. These are retained after
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the builder completes. This is a [template
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engine](/docs/templates/engine.html), see [Build template
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data](#build-template-data) for more information.
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- `associate_public_ip_address` (boolean) - If using a non-default VPC,
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public IP addresses are not provided by default. If this is toggled, your
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new instance will get a Public IP.
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- `availability_zone` (string) - Destination availability zone to launch
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instance in. Leave this empty to allow Amazon to auto-assign.
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- `block_duration_minutes` (int64) - Requires `spot_price` to be set. The
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required duration for the Spot Instances (also known as Spot blocks). This
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value must be a multiple of 60 (60, 120, 180, 240, 300, or 360). You can't
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specify an Availability Zone group or a launch group if you specify a
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duration.
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- `custom_endpoint_ec2` (string) - This option is useful if you use a cloud
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provider whose API is compatible with aws EC2. Specify another endpoint
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like this `https://ec2.custom.endpoint.com`.
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- `disable_stop_instance` (boolean) - Packer normally stops the build
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instance after all provisioners have run. For Windows instances, it is
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sometimes desirable to [run
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Sysprep](http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/ami-create-standard.html)
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which will stop the instance for you. If this is set to true, Packer *will
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not* stop the instance but will assume that you will send the stop signal
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yourself through your final provisioner. You can do this with a
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[windows-shell
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provisioner](https://www.packer.io/docs/provisioners/windows-shell.html).
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Note that Packer will still wait for the instance to be stopped, and
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failing to send the stop signal yourself, when you have set this flag to
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`true`, will cause a timeout.
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Example of a valid shutdown command:
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``` json
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{
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"type": "windows-shell",
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"inline": ["\"c:\\Program Files\\Amazon\\Ec2ConfigService\\ec2config.exe\" -sysprep"]
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}
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```
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- `decode_authorization_messages` (boolean) - Enable automatic decoding of
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any encoded authorization (error) messages using the
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`sts:DecodeAuthorizationMessage` API. Note: requires that the effective
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user/role have permissions to `sts:DecodeAuthorizationMessage` on resource
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`*`. Default `false`.
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- `ebs_optimized` (boolean) - Mark instance as [EBS
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Optimized](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSOptimized.html).
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Default `false`.
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- `ena_support` (boolean) - Enable enhanced networking (ENA but not
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SriovNetSupport) on HVM-compatible AMIs. If set, add
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`ec2:ModifyInstanceAttribute` to your AWS IAM policy. If false, this will
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disable enhanced networking in the final AMI as opposed to passing the
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setting through unchanged from the source. Note: you must make sure
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enhanced networking is enabled on your instance. See [Amazon's
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documentation on enabling enhanced
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networking](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html#enabling_enhanced_networking).
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- `enable_t2_unlimited` (boolean) - Enabling T2 Unlimited allows the source
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instance to burst additional CPU beyond its available [CPU
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Credits](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/t2-credits-baseline-concepts.html)
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for as long as the demand exists. This is in contrast to the standard
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configuration that only allows an instance to consume up to its available
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CPU Credits. See the AWS documentation for [T2
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Unlimited](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/t2-unlimited.html)
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and the **T2 Unlimited Pricing** section of the [Amazon EC2 On-Demand
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Pricing](https://aws.amazon.com/ec2/pricing/on-demand/) document for more
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information. By default this option is disabled and Packer will set up a
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[T2
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Standard](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/t2-std.html)
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instance instead.
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To use T2 Unlimited you must use a T2 instance type, e.g. `t2.micro`.
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Additionally, T2 Unlimited cannot be used in conjunction with Spot
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Instances, e.g. when the `spot_price` option has been configured.
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Attempting to do so will cause an error.
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!> **Warning!** Additional costs may be incurred by enabling T2
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Unlimited - even for instances that would usually qualify for the [AWS Free
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Tier](https://aws.amazon.com/free/).
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- `iam_instance_profile` (string) - The name of an [IAM instance
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profile](https://docs.aws.amazon.com/IAM/latest/UserGuide/instance-profiles.html)
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to launch the EC2 instance with.
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- `insecure_skip_tls_verify` (boolean) - This allows skipping TLS
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verification of the AWS EC2 endpoint. The default is `false`.
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- `mfa_code` (string) - The MFA
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[TOTP](https://en.wikipedia.org/wiki/Time-based_One-time_Password_Algorithm)
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code. This should probably be a user variable since it changes all the
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time.
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- `profile` (string) - The profile to use in the shared credentials file for
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AWS. See Amazon's documentation on [specifying
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profiles](https://docs.aws.amazon.com/sdk-for-go/v1/developer-guide/configuring-sdk.html#specifying-profiles)
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for more details.
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- `run_tags` (object of key/value strings) - Tags to apply to the instance
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that is *launched* to create the AMI. These tags are *not* applied to the
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resulting AMI unless they're duplicated in `tags`. This is a [template
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engine](/docs/templates/engine.html), see [Build template
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data](#build-template-data) for more information.
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- `security_group_id` (string) - The ID (*not* the name) of the security
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group to assign to the instance. By default this is not set and Packer will
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automatically create a new temporary security group to allow SSH access.
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Note that if this is specified, you must be sure the security group allows
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access to the `ssh_port` given below.
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- `security_group_ids` (array of strings) - A list of security groups as
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described above. Note that if this is specified, you must omit the
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`security_group_id`.
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- `security_group_filter` (object) - Filters used to populate the
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`security_group_ids` field. Example:
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``` json
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{
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"security_group_filter": {
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"filters": {
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"tag:Class": "packer"
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}
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}
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}
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```
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This selects the SG's with tag `Class` with the value `packer`.
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- `filters` (map of strings) - filters used to select a
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`security_group_ids`. Any filter described in the docs for
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[DescribeSecurityGroups](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeSecurityGroups.html)
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is valid.
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`security_group_ids` take precedence over this.
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- `shutdown_behavior` (string) - Automatically terminate instances on
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shutdown in case Packer exits ungracefully. Possible values are `stop` and
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`terminate`. Defaults to `stop`.
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- `skip_region_validation` (boolean) - Set to `true` if you want to skip
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validation of the region configuration option. Defaults to `false`.
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- `snapshot_groups` (array of strings) - A list of groups that have access to
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create volumes from the snapshot(s). By default no groups have permission
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to create volumes from the snapshot(s). `all` will make the snapshot
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publicly accessible.
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- `snapshot_users` (array of strings) - A list of account IDs that have
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access to create volumes from the snapshot(s). By default no additional
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users other than the user creating the AMI has permissions to create
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volumes from the backing snapshot(s).
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- `source_ami_filter` (object) - Filters used to populate the `source_ami`
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field. Example:
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``` json
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{
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"source_ami_filter": {
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"filters": {
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"virtualization-type": "hvm",
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"name": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
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"root-device-type": "ebs"
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},
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"owners": ["099720109477"],
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"most_recent": true
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}
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}
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```
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This selects the most recent Ubuntu 16.04 HVM EBS AMI from Canonical. NOTE:
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This will fail unless *exactly* one AMI is returned. In the above example,
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`most_recent` will cause this to succeed by selecting the newest image.
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- `filters` (map of strings) - filters used to select a `source_ami`.
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NOTE: This will fail unless *exactly* one AMI is returned. Any filter
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described in the docs for
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[DescribeImages](http://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeImages.html)
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is valid.
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- `owners` (array of strings) - Filters the images by their owner. You
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may specify one or more AWS account IDs, "self" (which will use the
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account whose credentials you are using to run Packer), or an AWS owner
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alias: for example, "amazon", "aws-marketplace", or "microsoft". This
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option is required for security reasons.
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- `most_recent` (boolean) - Selects the newest created image when true.
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This is most useful for selecting a daily distro build.
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You may set this in place of `source_ami` or in conjunction with it. If you
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set this in conjunction with `source_ami`, the `source_ami` will be added
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to the filter. The provided `source_ami` must meet all of the filtering
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criteria provided in `source_ami_filter`; this pins the AMI returned by the
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filter, but will cause Packer to fail if the `source_ami` does not exist.
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- `spot_price` (string) - The maximum hourly price to pay for a spot instance
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to create the AMI. Spot instances are a type of instance that EC2 starts
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when the current spot price is less than the maximum price you specify.
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Spot price will be updated based on available spot instance capacity and
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current spot instance requests. It may save you some costs. You can set
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this to `auto` for Packer to automatically discover the best spot price or
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to `0` to use an on-demand instance (default).
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- `spot_price_auto_product` (string) - Required if `spot_price` is set to
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`auto`. This tells Packer what sort of AMI you're launching to find the
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best spot price. This must be one of: `Linux/UNIX`, `SUSE Linux`,
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`Windows`, `Linux/UNIX (Amazon VPC)`, `SUSE Linux (Amazon VPC)` or
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`Windows (Amazon VPC)`
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- `spot_tags` (object of key/value strings) - Requires `spot_price` to be
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set. This tells Packer to apply tags to the spot request that is issued.
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- `sriov_support` (boolean) - Enable enhanced networking (SriovNetSupport but
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not ENA) on HVM-compatible AMIs. If true, add `ec2:ModifyInstanceAttribute`
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to your AWS IAM policy. Note: you must make sure enhanced networking is
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enabled on your instance. See [Amazon's documentation on enabling enhanced
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networking](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking.html#enabling_enhanced_networking).
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Default `false`.
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- `ssh_keypair_name` (string) - If specified, this is the key that will be
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used for SSH with the machine. By default, this is blank, and Packer will
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generate a temporary key pair unless
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[`ssh_password`](/docs/templates/communicator.html#ssh_password) is used.
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[`ssh_private_key_file`](/docs/templates/communicator.html#ssh_private_key_file)
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must be specified with this.
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- `ssh_private_ip` (boolean) - No longer supported. See
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[`ssh_interface`](#ssh_interface). A fixer exists to migrate.
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- `ssh_interface` (string) - One of `public_ip`, `private_ip`, `public_dns`
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or `private_dns`. If set, either the public IP address, private IP address,
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public DNS name or private DNS name will used as the host for SSH. The
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default behaviour if inside a VPC is to use the public IP address if
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available, otherwise the private IP address will be used. If not in a VPC
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the public DNS name will be used. Also works for WinRM.
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Where Packer is configured for an outbound proxy but WinRM traffic should
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be direct, `ssh_interface` must be set to `private_dns` and
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`<region>.compute.internal` included in the `NO_PROXY` environment
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variable.
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- `subnet_id` (string) - If using VPC, the ID of the subnet, such as
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`subnet-12345def`, where Packer will launch the EC2 instance. This field is
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required if you are using an non-default VPC.
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- `subnet_filter` (object) - Filters used to populate the `subnet_id` field.
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Example:
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``` json
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{
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"subnet_filter": {
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"filters": {
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"tag:Class": "build"
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},
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"most_free": true,
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"random": false
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}
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}
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```
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This selects the Subnet with tag `Class` with the value `build`, which has
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the most free IP addresses. NOTE: This will fail unless *exactly* one
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Subnet is returned. By using `most_free` or `random` one will be selected
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from those matching the filter.
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- `filters` (map of strings) - filters used to select a `subnet_id`.
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NOTE: This will fail unless *exactly* one Subnet is returned. Any
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filter described in the docs for
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[DescribeSubnets](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeSubnets.html)
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is valid.
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- `most_free` (boolean) - The Subnet with the most free IPv4 addresses
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will be used if multiple Subnets matches the filter.
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- `random` (boolean) - A random Subnet will be used if multiple Subnets
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matches the filter. `most_free` have precendence over this.
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`subnet_id` take precedence over this.
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- `temporary_key_pair_name` (string) - The name of the temporary key pair to
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generate. By default, Packer generates a name that looks like
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`packer_<UUID>`, where <UUID> is a 36 character unique identifier.
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- `temporary_security_group_source_cidr` (string) - An IPv4 CIDR block to be
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authorized access to the instance, when packer is creating a temporary
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security group. The default is `0.0.0.0/0` (i.e., allow any IPv4 source).
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This is only used when `security_group_id` or `security_group_ids` is not
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specified.
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- `token` (string) - The access token to use. This is different from the
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access key and secret key. If you're not sure what this is, then you
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probably don't need it. This will also be read from the `AWS_SESSION_TOKEN`
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environmental variable.
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- `user_data` (string) - User data to apply when launching the instance. Note
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that you need to be careful about escaping characters due to the templates
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being JSON. It is often more convenient to use `user_data_file`, instead.
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Packer will not automatically wait for a user script to finish before
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shutting down the instance this must be handled in a provisioner.
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- `user_data_file` (string) - Path to a file that will be used for the user
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data when launching the instance.
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- `vpc_id` (string) - If launching into a VPC subnet, Packer needs the VPC ID
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in order to create a temporary security group within the VPC. Requires
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`subnet_id` to be set. If this field is left blank, Packer will try to get
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the VPC ID from the `subnet_id`.
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- `vpc_filter` (object) - Filters used to populate the `vpc_id` field.
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Example:
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``` json
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{
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"vpc_filter": {
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"filters": {
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"tag:Class": "build",
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"isDefault": "false",
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"cidr": "/24"
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}
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}
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}
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```
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This selects the VPC with tag `Class` with the value `build`, which is not
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the default VPC, and have a IPv4 CIDR block of `/24`. NOTE: This will fail
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unless *exactly* one VPC is returned.
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- `filters` (map of strings) - filters used to select a `vpc_id`. NOTE:
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This will fail unless *exactly* one VPC is returned. Any filter
|
|
described in the docs for
|
|
[DescribeVpcs](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeVpcs.html)
|
|
is valid.
|
|
|
|
`vpc_id` take precedence over this.
|
|
|
|
- `windows_password_timeout` (string) - The timeout for waiting for a Windows
|
|
password for Windows instances. Defaults to 20 minutes. Example value:
|
|
`10m`
|
|
|
|
## Basic Example
|
|
|
|
``` json
|
|
{
|
|
"type" : "amazon-ebsvolume",
|
|
"secret_key" : "YOUR SECRET KEY HERE",
|
|
"access_key" : "YOUR KEY HERE",
|
|
"region" : "us-east-1",
|
|
"ssh_username" : "ubuntu",
|
|
"instance_type" : "t2.medium",
|
|
"source_ami" : "ami-40d28157",
|
|
"ebs_volumes" : [
|
|
{
|
|
"volume_type" : "gp2",
|
|
"device_name" : "/dev/xvdf",
|
|
"delete_on_termination" : false,
|
|
"tags" : {
|
|
"zpool" : "data",
|
|
"Name" : "Data1"
|
|
},
|
|
"volume_size" : 10
|
|
},
|
|
{
|
|
"volume_type" : "gp2",
|
|
"device_name" : "/dev/xvdg",
|
|
"tags" : {
|
|
"zpool" : "data",
|
|
"Name" : "Data2"
|
|
},
|
|
"delete_on_termination" : false,
|
|
"volume_size" : 10
|
|
},
|
|
{
|
|
"volume_size" : 10,
|
|
"tags" : {
|
|
"Name" : "Data3",
|
|
"zpool" : "data"
|
|
},
|
|
"delete_on_termination" : false,
|
|
"device_name" : "/dev/xvdh",
|
|
"volume_type" : "gp2"
|
|
}
|
|
]
|
|
}
|
|
```
|
|
|
|
-> **Note:** Packer can also read the access key and secret access key from
|
|
environmental variables. See the configuration reference in the section above
|
|
for more information on what environmental variables Packer will look for.
|
|
|
|
Further information on locating AMI IDs and their relationship to instance
|
|
types and regions can be found in the AWS EC2 Documentation [for
|
|
Linux](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/finding-an-ami.html)
|
|
or [for
|
|
Windows](http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/finding-an-ami.html).
|
|
|
|
## Accessing the Instance to Debug
|
|
|
|
If you need to access the instance to debug for some reason, run the builder
|
|
with the `-debug` flag. In debug mode, the Amazon builder will save the private
|
|
key in the current directory and will output the DNS or IP information as well.
|
|
You can use this information to access the instance as it is running.
|
|
|
|
## Build template data
|
|
|
|
In configuration directives marked as a template engine above, the following
|
|
variables are available:
|
|
|
|
- `BuildRegion` - The region (for example `eu-central-1`) where Packer is
|
|
building the AMI.
|
|
- `SourceAMI` - The source AMI ID (for example `ami-a2412fcd`) used to build
|
|
the AMI.
|
|
- `SourceAMIName` - The source AMI Name (for example
|
|
`ubuntu/images/ebs-ssd/ubuntu-xenial-16.04-amd64-server-20180306`) used to
|
|
build the AMI.
|
|
- `SourceAMITags` - The source AMI Tags, as a `map[string]string` object.
|
|
|
|
-> **Note:** Packer uses pre-built AMIs as the source for building images.
|
|
These source AMIs may include volumes that are not flagged to be destroyed on
|
|
termination of the instance building the new image. In addition to those
|
|
volumes created by this builder, any volumes inn the source AMI which are not
|
|
marked for deletion on termination will remain in your account.
|