kubespray/roles/kubernetes/control-plane/tasks/encrypt-at-rest.yml

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---
- name: Check if secret for encrypting data at rest already exist
stat:
path: "{{ kube_cert_dir }}/secrets_encryption.yaml"
register: secrets_encryption_file
- name: Slurp secrets_encryption file if it exists
slurp:
src: "{{ kube_cert_dir }}/secrets_encryption.yaml"
register: secret_file_encoded
when: secrets_encryption_file.stat.exists
- name: Base 64 Decode slurped secrets_encryption.yaml file
set_fact:
secret_file_decoded: "{{ secret_file_encoded['content'] | b64decode | from_yaml }}"
when: secrets_encryption_file.stat.exists
- name: Extract secret value from secrets_encryption.yaml
set_fact:
kube_encrypt_token_extracted: "{{ secret_file_decoded | json_query(secrets_encryption_query) | first | b64decode }}"
when: secrets_encryption_file.stat.exists
- name: Set kube_encrypt_token across master nodes
set_fact:
kube_encrypt_token: "{{ kube_encrypt_token_extracted }}"
delegate_to: "{{ item }}"
delegate_facts: true
with_inventory_hostnames: kube-master
when: kube_encrypt_token_extracted is defined
- name: Write secrets for encrypting secret data at rest
template:
src: secrets_encryption.yaml.j2
dest: "{{ kube_cert_dir }}/secrets_encryption.yaml"
owner: root
group: "{{ kube_cert_group }}"
mode: 0640
tags:
- kube-apiserver