For AI agents: A markdown version of this page is available at https://docs.datadoghq.com/security/code_security/iac_security/iac_rules/ansible-aws-lambda-functions-without-x-ray-tracing.md. A documentation index is available at /llms.txt.

Lambda functions without X-Ray tracing

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Metadata

Id: ansible-aws-lambda-functions-without-x-ray-tracing

Provider: AWS

Platform: Ansible

Severity: Low

Category: Observability

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Description

Lambda functions should have active AWS X-Ray tracing enabled to provide end-to-end request visibility and help detect performance problems and security incidents. For Ansible amazon.aws.lambda or lambda module tasks, the tracing_mode property must be defined and set to Active. Tasks that omit tracing_mode or set it to any value other than Active are flagged.

Secure Ansible example:

- name: Create Lambda with active X-Ray tracing
  amazon.aws.lambda:
    name: my_lambda_function
    state: present
    runtime: python3.9
    handler: app.handler
    tracing_mode: Active

Compliant Code Examples

- name: looped creation V3
  amazon.aws.lambda:
    name: '{{ item.name }}'
    state: present
    zip_file: '{{ item.zip_file }}'
    runtime: python2.7
    role: arn:aws:iam::987654321012:role/lambda_basic_execution
    handler: hello_python.my_handler
    tracing_mode: Active
    vpc_subnet_ids:
    - subnet-123abcde
    - subnet-edcba321
    vpc_security_group_ids:
    - sg-123abcde
    - sg-edcba321
    environment_variables: '{{ item.env_vars }}'
    tags:
      key1: value1
  loop:
  - name: HelloWorld
    zip_file: hello-code.zip
    env_vars:
      key1: first
      key2: second
  - name: ByeBye
    zip_file: bye-code.zip
    env_vars:
      key1: '1'
      key2: '2'

Non-Compliant Code Examples

- name: looped creation
  amazon.aws.lambda:
    name: '{{ item.name }}'
    state: present
    zip_file: '{{ item.zip_file }}'
    runtime: 'python2.7'
    role: 'arn:aws:iam::987654321012:role/lambda_basic_execution'
    handler: 'hello_python.my_handler'
    vpc_subnet_ids:
    - subnet-123abcde
    - subnet-edcba321
    vpc_security_group_ids:
    - sg-123abcde
    - sg-edcba321
    environment_variables: '{{ item.env_vars }}'
    tags:
      key1: 'value1'
  loop:
  - name: HelloWorld
    zip_file: hello-code.zip
    env_vars:
      key1: "first"
      key2: "second"
  - name: ByeBye
    zip_file: bye-code.zip
    env_vars:
      key1: "1"
      key2: "2"
- name: looped creation V2
  amazon.aws.lambda:
    name: '{{ item.name }}'
    state: present
    zip_file: '{{ item.zip_file }}'
    runtime: 'python2.7'
    role: 'arn:aws:iam::987654321012:role/lambda_basic_execution'
    handler: 'hello_python.my_handler'
    tracing_mode: "PassThrough"
    vpc_subnet_ids:
    - subnet-123abcde
    - subnet-edcba321
    vpc_security_group_ids:
    - sg-123abcde
    - sg-edcba321
    environment_variables: '{{ item.env_vars }}'
    tags:
      key1: 'value1'
  loop:
  - name: HelloWorld
    zip_file: hello-code.zip
    env_vars:
      key1: "first"
      key2: "second"
  - name: ByeBye
    zip_file: bye-code.zip
    env_vars:
      key1: "1"
      key2: "2"