751 lines
24 KiB
ReStructuredText
751 lines
24 KiB
ReStructuredText
.. _aws-driver:
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.. default-domain:: zuul
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AWS Driver
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----------
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If using the AWS driver to upload diskimages, see
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`VM Import/Export service role`_ for information on configuring
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the required permissions in AWS. You must also create an S3 Bucket
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for use by Nodepool.
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Selecting the ``aws`` driver adds the following options to the
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:attr:`providers` section of the configuration.
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.. attr-overview::
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:prefix: providers.[aws]
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:maxdepth: 3
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.. attr:: providers.[aws]
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:type: list
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An AWS provider's resources are partitioned into groups called `pool`
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(see :attr:`providers.[aws].pools` for details), and within a pool,
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the node types which are to be made available are listed
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(see :attr:`providers.[aws].pools.labels` for details).
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See `Boto Configuration`_ for information on how to configure credentials
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and other settings for AWS access in Nodepool's runtime environment.
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.. note:: For documentation purposes the option names are prefixed
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``providers.[aws]`` to disambiguate from other
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drivers, but ``[aws]`` is not required in the
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configuration (e.g. below
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``providers.[aws].pools`` refers to the ``pools``
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key in the ``providers`` section when the ``aws``
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driver is selected).
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Example:
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.. code-block:: yaml
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providers:
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- name: ec2-us-west-2
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driver: aws
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region-name: us-west-2
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cloud-images:
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- name: debian9
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image-id: ami-09c308526d9534717
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username: admin
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pools:
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- name: main
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max-servers: 5
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subnet-id: subnet-0123456789abcdef0
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security-group-id: sg-01234567890abcdef
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labels:
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- name: debian9
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cloud-image: debian9
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instance-type: t3.medium
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iam-instance-profile:
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arn: arn:aws:iam::123456789012:instance-profile/s3-read-only
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key-name: zuul
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tags:
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key1: value1
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- name: debian9-large
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cloud-image: debian9
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instance-type: t3.large
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key-name: zuul
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tags:
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key1: value1
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key2: value2
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.. attr:: name
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:required:
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A unique name for this provider configuration.
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.. attr:: region-name
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:required:
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Name of the `AWS region`_ to interact with.
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.. attr:: profile-name
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The AWS credentials profile to load for this provider. If unspecified the
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`boto3` library will select a profile.
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See `Boto Configuration`_ for more information.
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.. attr:: rate
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:type: float
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:default: 2.0
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The number of operations per second to perform against the provider.
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.. attr:: boot-timeout
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:type: int seconds
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:default: 180
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Once an instance is active, how long to try connecting to the
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image via SSH. If the timeout is exceeded, the node launch is
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aborted and the instance deleted.
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.. attr:: launch-timeout
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:type: int seconds
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:default: 3600
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The time to wait from issuing the command to create a new instance
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until that instance is reported as "active". If the timeout is
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exceeded, the node launch is aborted and the instance deleted.
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.. attr:: max-cores
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:type: int
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:default: unlimited
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Maximum number of cores usable from this provider's pools by default.
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.. attr:: max-servers
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:type: int
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:default: unlimited
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Maximum number of servers spawnable from this provider's pools by default.
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.. attr:: max-ram
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:type: int
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:default: unlimited
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Maximum RAM usable from this provider's pools by default.
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.. attr:: max-resources
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:type: dict
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:default: unlimited
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A dictionary of other quota resource limits. AWS has quotas
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for certain instance types. These may be specified here to
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limit Nodepool's usage.
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The following example limits the number of high-memory
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instance cores:
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.. code-block:: yaml
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max-resources:
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'L-43DA4232': 448
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See `instance quotas`_ for more information.
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.. attr:: launch-retries
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:default: 3
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The number of times to retry launching a node before considering
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the request failed.
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.. attr:: post-upload-hook
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:type: string
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:default: None
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Filename of an optional script that can be called after an image has
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been uploaded to a provider but before it is taken into use. This is
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useful to perform last minute validation tests before an image is
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really used for build nodes. The script will be called as follows:
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``<SCRIPT> <PROVIDER> <EXTERNAL_IMAGE_ID> <LOCAL_IMAGE_FILENAME>``
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If the script returns with result code 0 it is treated as successful
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otherwise it is treated as failed and the image gets deleted.
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.. attr:: object-storage
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This section is only required when using Nodepool to upload
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diskimages.
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.. attr:: bucket-name
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The name of a bucket to use for temporary storage of
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diskimages while creating snapshots. The bucket must already
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exist.
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.. attr:: image-format
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:type: str
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:default: raw
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The image format that should be requested from diskimage-builder
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and also specified to AWS when importing images. One of:
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``ova``, ``vhd``, ``vhdx``, ``vmdk``, ``raw`` (not all of which
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are supported by diskimage-builder).
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.. attr:: cloud-images
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:type: list
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Each entry in this section must refer to an entry in the
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:attr:`labels` section.
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.. code-block:: yaml
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cloud-images:
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- name: ubuntu1804
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image-id: ami-082fd9a18128c9e8c
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username: ubuntu
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- name: ubuntu1804-by-filters
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image-filters:
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- name: name
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values:
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- named-ami
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username: ubuntu
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- name: my-custom-win2k3
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connection-type: winrm
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username: admin
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: string
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:required:
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Identifier to refer this cloud-image from :attr:`providers.[aws].pools.labels` section.
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Since this name appears elsewhere in the nodepool configuration file,
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you may want to use your own descriptive name here and use
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``image-id`` to specify the cloud image so that if
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the image id changes on the cloud, the impact to your Nodepool
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configuration will be minimal. However, if ``image-id`` is not
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provided, this is assumed to be the image id in the cloud.
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.. attr:: image-id
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:type: str
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If this is provided, it is used to select the image from the
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cloud provider by ID. Either this field or
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:attr:`providers.[aws].cloud-images.image-filters` must be
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provided.
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.. attr:: image-filters
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:type: list
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If provided, this is used to select an AMI by filters. If
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the filters provided match more than one image, the most
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recent will be returned. Either this field or
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:attr:`providers.[aws].cloud-images.image-id` must be
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provided.
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: str
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:required:
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The filter name. See `Boto describe images`_ for a list of valid filters.
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.. attr:: values
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:type: list
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:required:
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A list of string values on which to filter.
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.. attr:: username
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:type: str
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The username that a consumer should use when connecting to the node.
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.. attr:: python-path
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:type: str
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:default: auto
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The path of the default python interpreter. Used by Zuul to set
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``ansible_python_interpreter``. The special value ``auto`` will
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direct Zuul to use inbuilt Ansible logic to select the
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interpreter on Ansible >=2.8, and default to
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``/usr/bin/python2`` for earlier versions.
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.. attr:: connection-type
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:type: str
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The connection type that a consumer should use when connecting to the
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node. For most images this is not necessary. However when creating
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Windows images this could be 'winrm' to enable access via ansible.
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.. attr:: connection-port
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:type: int
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:default: 22/ 5986
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The port that a consumer should use when connecting to the node. For
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most diskimages this is not necessary. This defaults to 22 for ssh and
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5986 for winrm.
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.. attr:: shell-type
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:type: str
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:default: sh
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The shell type of the node's default shell executable. Used by Zuul
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to set ``ansible_shell_type``. This setting should only be used
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- For a windows image with the experimental `connection-type` ``ssh``
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in which case ``cmd`` or ``powershell`` should be set
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and reflect the node's ``DefaultShell`` configuration.
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- If the default shell is not Bourne compatible (sh), but instead
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e.g. ``csh`` or ``fish``, and the user is aware that there is a
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long-standing issue with ``ansible_shell_type`` in combination
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with ``become``.
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.. attr:: diskimages
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:type: list
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Each entry in a provider's `diskimages` section must correspond
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to an entry in :attr:`diskimages`. Such an entry indicates that
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the corresponding diskimage should be uploaded for use in this
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provider. Additionally, any nodes that are created using the
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uploaded image will have the associated attributes (such as
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flavor or metadata).
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If an image is removed from this section, any previously uploaded
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images will be deleted from the provider.
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.. code-block:: yaml
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diskimages:
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- name: bionic
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pause: False
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- name: windows
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connection-type: winrm
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connection-port: 5986
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: string
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:required:
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Identifier to refer this image from
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:attr:`providers.[aws].pools.labels` and
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:attr:`diskimages` sections.
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.. attr:: pause
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:type: bool
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:default: False
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When set to True, nodepool-builder will not upload the image
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to the provider.
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.. attr:: username
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:type: str
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The username that should be used when connecting to the node.
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.. attr:: connection-type
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:type: string
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The connection type that a consumer should use when connecting
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to the node. For most diskimages this is not
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necessary. However when creating Windows images this could be
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``winrm`` to enable access via ansible.
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.. attr:: connection-port
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:type: int
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:default: 22 / 5986
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The port that a consumer should use when connecting to the
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node. For most diskimages this is not necessary. This defaults
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to 22 for ssh and 5986 for winrm.
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.. attr:: python-path
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:type: str
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:default: auto
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The path of the default python interpreter. Used by Zuul to set
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``ansible_python_interpreter``. The special value ``auto`` will
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direct Zuul to use inbuilt Ansible logic to select the
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interpreter on Ansible >=2.8, and default to
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``/usr/bin/python2`` for earlier versions.
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.. attr:: shell-type
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:type: str
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:default: sh
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The shell type of the node's default shell executable. Used by Zuul
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to set ``ansible_shell_type``. This setting should only be used
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- For a windows image with the experimental `connection-type` ``ssh``
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in which case ``cmd`` or ``powershell`` should be set
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and reflect the node's ``DefaultShell`` configuration.
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- If the default shell is not Bourne compatible (sh), but instead
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e.g. ``csh`` or ``fish``, and the user is aware that there is a
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long-standing issue with ``ansible_shell_type`` in combination
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with ``become``.
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.. attr:: architecture
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:type: str
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:default: x86_64
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The architecture of the image. See the `AWS RegisterImage API
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documentation`_ for valid values.
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.. attr:: ena-support
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:type: bool
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:default: True
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Whether the image has support for the AWS Enhanced Networking
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Adapter (ENA). Many newer operating systems include driver
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support as standard and some AWS instance types require it.
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.. attr:: volume-type
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:type: str
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:default: gp2
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The root `EBS volume type`_ for the image.
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Only used with the
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:value:`providers.[aws].diskimages.import-method.snapshot`
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import method.
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.. attr:: volume-size
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:type: int
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The size of the root EBS volume, in GiB, for the image. If
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omitted, the volume size reported for the imported snapshot
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will be used. Only used with the
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:value:`providers.[aws].diskimages.import-method.snapshot`
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import method.
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.. attr:: import-method
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:default: snapshot
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The method to use when importing the image.
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.. value:: snapshot
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This method uploads the image file to AWS as a snapshot
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and then registers an AMI directly from the snapshot.
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This is faster compared to the `image` method and may be
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used with operating systems and versions that AWS does not
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otherwise support. However, it is incompatible with some
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operating systems which require special licensing or other
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metadata in AWS.
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.. value:: image
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This method uploads the image file to AWS and performs an
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"image import" on the file. This causes AWS to boot the
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image in a temporary VM and then take a snapshot of that
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VM which is then used as the basis of the AMI. This is
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slower compared to the `snapshot` method and may only be
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used with operating systems and versions which AWS already
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supports. This may be necessary in order to use Windows
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images.
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.. attr:: iops
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:type: int
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The number of I/O operations per second to be provisioned for
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the volume. The default varies based on the volume type; see
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the documentation under `EBS volume type`_ for the specific
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volume type for details.
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.. attr:: throughput
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:type: int
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The throughput of the volume in MiB/s. This is only valid for
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``gp3`` volumes.
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.. attr:: tags
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:type: dict
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:default: None
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A dictionary of tags to add to uploaded images. This will be
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merged with any existing metadata from the global `diskimage`
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configuration for this image. Avoid the use of `nodepool_`
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as a key prefix since Nodepool uses this for internal values.
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.. attr:: pools
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:type: list
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A pool defines a group of resources from an AWS provider. Each pool has a
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maximum number of nodes which can be launched from it, along with a number
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of cloud-related attributes used when launching nodes.
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.. attr:: name
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:required:
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A unique name within the provider for this pool of resources.
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.. attr:: priority
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:type: int
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:default: 100
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The priority of this provider pool (a lesser number is a higher
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priority). Nodepool launchers will yield requests to other
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provider pools with a higher priority as long as they are not
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paused. This means that in general, higher priority pools will
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reach quota first before lower priority pools begin to be used.
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This setting may be specified at the provider level in order
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to apply to all pools within that provider, or it can be
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overridden here for a specific pool.
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.. attr:: node-attributes
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:type: dict
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A dictionary of key-value pairs that will be stored with the node data
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in ZooKeeper. The keys and values can be any arbitrary string.
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.. attr:: max-cores
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:type: int
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Maximum number of cores usable from this pool. Defaults to
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:attr:`providers.[aws].max-cores`.
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.. attr:: max-servers
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:type: int
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Maximum number of servers spawnable from this pool. Defaults to
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:attr:`providers.[aws].max-servers`.
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.. attr:: max-ram
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:type: int
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Maximum RAM usable from this pool. Defaults to
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:attr:`providers.[aws].max-ram`.
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.. attr:: max-resources
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:type: dict
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A dictionary of other quota resource limits. AWS has quotas
|
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for certain instance types. These may be specified here to
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limit Nodepool's usage. Defaults to
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:attr:`providers.[aws].max-resources`.
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|
|
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The following example limits the number of high-memory
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instance cores:
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.. code-block:: yaml
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max-resources:
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'L-43DA4232': 448
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See `instance quotas`_ for more information.
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.. attr:: subnet-id
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If provided, specifies the subnet to assign to the primary network
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interface of nodes.
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.. attr:: security-group-id
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If provided, specifies the security group ID to assign to the primary
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network interface of nodes.
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.. attr:: public-ip-address
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:type: bool
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:default: True
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Deprecated alias for :attr:`providers.[aws].pools.public-ipv4`.
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.. attr:: public-ipv4
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:type: bool
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:default: True
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Specify if a public IPv4 address shall be attached to nodes.
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.. attr:: public-ipv6
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:type: bool
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:default: True
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Specify if a public IPv6 address shall be attached to nodes.
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.. attr:: use-internal-ip
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:type: bool
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:default: false
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If a public IP is attached but Nodepool should prefer the
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private IP, set this to true.
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.. attr:: host-key-checking
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:type: bool
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:default: True
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Whether to validate SSH host keys. When true, this helps ensure
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that nodes are ready to receive SSH connections before they are
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supplied to the requestor. When set to false, nodepool-launcher
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will not attempt to ssh-keyscan nodes after they are booted.
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Disable this if nodepool-launcher and the nodes it launches are
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on different networks, where the launcher is unable to reach the
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nodes directly, or when using Nodepool with non-SSH node
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platforms. The default value is true.
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.. attr:: labels
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:type: list
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Each entry in a pool's `labels` section indicates that the
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corresponding label is available for use in this pool. When creating
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nodes for a label, the flavor-related attributes in that label's
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section will be used.
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.. code-block:: yaml
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labels:
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- name: bionic
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instance-type: m5a.large
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Each entry is a dictionary with the following keys
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.. attr:: name
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:type: str
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:required:
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Identifier to refer to this label.
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.. attr:: cloud-image
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:type: str
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:required:
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Refers to the name of an externally managed image in the
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cloud that already exists on the provider. The value of
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``cloud-image`` should match the ``name`` of a
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previously configured entry from the ``cloud-images``
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section of the provider. See
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:attr:`providers.[aws].cloud-images`. Mutually
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exclusive with
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:attr:`providers.[aws].pools.labels.diskimage`
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.. attr:: diskimage
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:type: str
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:required:
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Refers to provider's diskimages, see
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:attr:`providers.[aws].diskimages`. Mutually exclusive
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with :attr:`providers.[aws].pools.labels.cloud-image`
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.. attr:: ebs-optimized
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:type: bool
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:default: False
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Indicates whether EBS optimization
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(additional, dedicated throughput between Amazon EC2 and Amazon EBS,)
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has been enabled for the instance.
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.. attr:: instance-type
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:type: str
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:required:
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Name of the flavor to use.
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.. attr:: iam-instance-profile
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:type: dict
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Used to attach an iam instance profile.
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Useful for giving access to services without needing any secrets.
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.. attr:: name
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Name of the instance profile.
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Mutually exclusive with :attr:`providers.[aws].pools.labels.iam-instance-profile.arn`
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.. attr:: arn
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ARN identifier of the profile.
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Mutually exclusive with :attr:`providers.[aws].pools.labels.iam-instance-profile.name`
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.. attr:: key-name
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:type: string
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:required:
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The name of a keypair that will be used when
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booting each server.
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.. attr:: volume-type
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:type: string
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If given, the root `EBS volume type`_
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.. attr:: volume-size
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:type: int
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If given, the size of the root EBS volume, in GiB.
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.. attr:: iops
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:type: int
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The number of I/O operations per second to be
|
|
provisioned for the volume. The default varies based on
|
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the volume type; see the documentation under `EBS volume
|
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type`_ for the specific volume type for details.
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.. attr:: throughput
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:type: int
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The throughput of the volume in MiB/s. This is only
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valid for ``gp3`` volumes.
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.. attr:: userdata
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:type: str
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:default: None
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A string of userdata for a node. Example usage is to install
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cloud-init package on image which will apply the userdata.
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Additional info about options in cloud-config:
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https://cloudinit.readthedocs.io/en/latest/topics/examples.html
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.. attr:: tags
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:type: dict
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:default: None
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A dictionary of tags to add to the EC2 instances.
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Values must be supplied as strings.
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.. attr:: dynamic-tags
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:type: dict
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:default: None
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Similar to
|
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:attr:`providers.[aws].pools.labels.tags`,
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but is interpreted as a format string with the following
|
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values available:
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* request: Information about the request which prompted the
|
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creation of this node (note that the node may ultimately
|
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be used for a different request and in that case this
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information will not be updated).
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* id: The request ID.
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* labels: The list of labels in the request.
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* requestor: The name of the requestor.
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* requestor_data: Key/value information from the requestor.
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* relative_priority: The relative priority of the request.
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* event_id: The external event ID of the request.
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* created_time: The creation time of the request.
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* tenant_name: The name of the tenant associated with the
|
|
request.
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For example:
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.. code-block:: yaml
|
|
|
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labels:
|
|
- name: precise
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dynamic-tags:
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request_info: "Created for request {request.id}"
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.. _`EBS volume type`: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html
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.. _`AWS region`: https://docs.aws.amazon.com/general/latest/gr/rande.html
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.. _`Boto configuration`: https://boto3.amazonaws.com/v1/documentation/api/latest/guide/configuration.html
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.. _`Boto describe images`: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ec2.html#EC2.Client.describe_images
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.. _`VM Import/Export service role`: https://docs.aws.amazon.com/vm-import/latest/userguide/vmie_prereqs.html#vmimport-role
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.. _`instance quotas`: https://us-west-1.console.aws.amazon.com/servicequotas/home/services/ec2/quotas
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.. _`AWS RegisterImage API documentation`: https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_RegisterImage.html
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