Node auto-upgrade disabled

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Metadata

Id: d6e10477-2e19-4bcd-b8a8-19c65b89ccdf

Cloud Provider: GCP

Platform: Ansible

Severity: Medium

Category: Resource Management

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Description

Kubernetes node pools must have automatic node upgrades enabled so nodes receive security patches and Kubernetes version updates promptly. This reduces exposure to known vulnerabilities and version drift.

For Ansible tasks using the google.cloud.gcp_container_node_pool or gcp_container_node_pool modules, the management.auto_upgrade property must be defined and set to true. Tasks missing the management block, missing management.auto_upgrade, or with auto_upgrade set to false are flagged as insecure. Secure configuration example:

- name: Create GKE node pool with auto-upgrade
  google.cloud.gcp_container_node_pool:
    name: my-node-pool
    cluster: my-cluster
    zone: us-central1-a
    management:
      auto_upgrade: true
    initial_node_count: 3

Compliant Code Examples

- name: create a node pool
  google.cloud.gcp_container_node_pool:
    name: my-pool
    initial_node_count: 4
    cluster: '{{ cluster }}'
    location: us-central1-a
    project: test_project
    auth_kind: serviceaccount
    service_account_file: /tmp/auth.pem
    state: present
    management:
      auto-repair: yes
      auto_upgrade: yes

Non-Compliant Code Examples

---
- name: create a node pool
  google.cloud.gcp_container_node_pool:
    name: my-pool
    initial_node_count: 4
    cluster: "{{ cluster }}"
    location: us-central1-a
    project: test_project
    auth_kind: serviceaccount
    service_account_file: "/tmp/auth.pem"
    state: present
- name: create a second node pool
  google.cloud.gcp_container_node_pool:
    name: my-pool
    initial_node_count: 4
    cluster: "{{ cluster }}"
    location: us-central1-a
    project: test_project
    auth_kind: serviceaccount
    service_account_file: "/tmp/auth.pem"
    state: present
    management:
      auto_repair: yes
- name: create a third node pool
  google.cloud.gcp_container_node_pool:
    name: my-pool
    initial_node_count: 4
    cluster: "{{ cluster }}"
    location: us-central1-a
    project: test_project
    auth_kind: serviceaccount
    service_account_file: "/tmp/auth.pem"
    state: present
    management:
      auto_repair: yes
      auto_upgrade: no