amazon.aws.aws_ec2 – EC2 inventory source
Note
This plugin is part of the amazon.aws collection (version 1.5.1).
You might already have this collection installed if you are using the ansible package.
It is not included in ansible-core.
To check whether it is installed, run ansible-galaxy collection list.
To install it, use: ansible-galaxy collection install amazon.aws.
To use it in a playbook, specify: amazon.aws.aws_ec2.
Synopsis
Get inventory hosts from Amazon Web Services EC2.
Uses a YAML configuration file that ends with
aws_ec2.(yml|yaml).
Requirements
The below requirements are needed on the local controller node that executes this inventory.
boto3
botocore
Parameters
Parameter |
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The AWS access key to use. Configuration:
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The AWS profile Configuration:
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The AWS secret key that corresponds to the access key. Configuration:
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The AWS security token if using temporary access and secret keys. Configuration:
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Toggle to enable/disable the caching of the inventory’s source data, requires a cache plugin setup to work. Choices:
Configuration:
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Cache connection data or path, read cache plugin documentation for specifics. Configuration:
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Cache plugin to use for the inventory’s source data. Default: “memory” Configuration:
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Prefix to use for cache plugin files/tables Default: “ansible_inventory_” Configuration:
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Cache duration in seconds Default: 3600 Configuration:
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Create vars from jinja2 expressions. Default: {} |
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A list of filters. Any instances matching one of the filters are excluded from the result. The filters from Available filters are listed here http://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instances.html#options. Every entry in this list triggers a search query. As such, from a performance point of view, it’s better to keep the list as short as possible. Default: [] |
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A dictionary of filter value pairs. Available filters are listed here http://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instances.html#options. Default: {} |
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Add hosts to group based on Jinja2 conditionals. Default: {} |
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A list in order of precedence for hostname variables. You can use the options specified in http://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instances.html#options. To use tags as hostnames use the syntax tag:Name=Value to use the hostname Name_Value, or tag:Name to use the value of the Name tag. Default: [] |
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The ARN of the IAM role to assume to perform the inventory lookup. You should still provide AWS credentials with enough privilege to perform the AssumeRole action. |
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Add two additional API calls for every instance to include ‘persistent’ and ‘events’ host variables. Spot instances may be persistent and instances may have associated events. Choices:
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A list of filters. Any instances matching at least one of the filters are included in the result. Available filters are listed here http://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instances.html#options. Every entry in this list triggers a search query. As such, from a performance point of view, it’s better to keep the list as short as possible. Default: [] |
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Add hosts to group based on the values of a variable. Default: [] |
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Use in conjunction with keyed_groups. By default, a keyed group that does not have a prefix or a separator provided will have a name that starts with an underscore. This is because the default prefix is “” and the default separator is “_”. Set this option to False to omit the leading underscore (or other separator) if no prefix is given. If the group name is derived from a mapping the separator is still used to concatenate the items. To not use a separator in the group name at all, set the separator for the keyed group to an empty string instead. Choices:
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Token that ensures this is a source file for the plugin. Choices:
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A list of regions in which to describe EC2 instances. If empty (the default) default this will include all regions, except possibly restricted ones like us-gov-west-1 and cn-north-1. Default: [] |
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If Since it is possible to use facts in the expressions they might not always be available and we ignore those errors by default. Choices:
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By default if a 403 (Forbidden) error code is encountered this plugin will fail. You can set this option to False in the inventory config file which will allow 403 errors to be gracefully skipped. Choices:
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Expose the host tags with ec2_tag_TAGNAME keys like the old ec2.py inventory script. The use of this feature is discouraged and we advise to migrate to the new Choices:
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By default this plugin is using a general group name sanitization to create safe and usable group names for use in Ansible. This option allows you to override that, in efforts to allow migration from the old inventory script and matches the sanitization of groups when the script’s For this to work you should also turn off the TRANSFORM_INVALID_GROUP_CHARS setting, otherwise the core engine will just use the standard sanitization on top. This is not the default as such names break certain functionality as not all characters are valid Python identifiers which group names end up being used as. Choices:
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Merge extra vars into the available variables for composition (highest precedence). Choices:
Configuration:
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Notes
Note
If no credentials are provided and the control node has an associated IAM instance profile then the role will be used for authentication.
Examples
# Minimal example using environment vars or instance role credentials
# Fetch all hosts in us-east-1, the hostname is the public DNS if it exists, otherwise the private IP address
plugin: aws_ec2
regions:
- us-east-1
# Example using filters, ignoring permission errors, and specifying the hostname precedence
plugin: aws_ec2
# The values for profile, access key, secret key and token can be hardcoded like:
boto_profile: aws_profile
# or you could use Jinja as:
# boto_profile: "{{ lookup('env', 'AWS_PROFILE') | default('aws_profile', true) }}"
# Populate inventory with instances in these regions
regions:
- us-east-1
- us-east-2
filters:
# All instances with their `Environment` tag set to `dev`
tag:Environment: dev
# All dev and QA hosts
tag:Environment:
- dev
- qa
instance.group-id: sg-xxxxxxxx
# Ignores 403 errors rather than failing
strict_permissions: False
# Note: I(hostnames) sets the inventory_hostname. To modify ansible_host without modifying
# inventory_hostname use compose (see example below).
hostnames:
- tag:Name=Tag1,Name=Tag2 # Return specific hosts only
- tag:CustomDNSName
- dns-name
- name: 'tag:Name=Tag1,Name=Tag2'
- name: 'private-ip-address'
separator: '_'
prefix: 'tag:Name'
# Example using constructed features to create groups and set ansible_host
plugin: aws_ec2
regions:
- us-east-1
- us-west-1
# keyed_groups may be used to create custom groups
strict: False
keyed_groups:
# Add e.g. x86_64 hosts to an arch_x86_64 group
- prefix: arch
key: 'architecture'
# Add hosts to tag_Name_Value groups for each Name/Value tag pair
- prefix: tag
key: tags
# Add hosts to e.g. instance_type_z3_tiny
- prefix: instance_type
key: instance_type
# Create security_groups_sg_abcd1234 group for each SG
- key: 'security_groups|json_query("[].group_id")'
prefix: 'security_groups'
# Create a group for each value of the Application tag
- key: tags.Application
separator: ''
# Create a group per region e.g. aws_region_us_east_2
- key: placement.region
prefix: aws_region
# Create a group (or groups) based on the value of a custom tag "Role" and add them to a metagroup called "project"
- key: tags['Role']
prefix: foo
parent_group: "project"
# Set individual variables with compose
compose:
# Use the private IP address to connect to the host
# (note: this does not modify inventory_hostname, which is set via I(hostnames))
ansible_host: private_ip_address
# Example using include_filters and exclude_filters to compose the inventory.
plugin: aws_ec2
regions:
- us-east-1
- us-west-1
include_filters:
- tag:Name:
- 'my_second_tag'
- tag:Name:
- 'my_third_tag'
exclude_filters:
- tag:Name:
- 'my_first_tag'
Authors
Sloane Hertel (@s-hertel)