Vault security hardening and role isolation

roles/vault/tasks/bootstrap/sync_secrets.yml

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+---
+
+- include: ../shared/sync_file.yml
+  vars:
+    sync_file: "{{ item }}"
+    sync_file_dir: "{{ vault_secrets_dir }}"
+    sync_file_hosts: "{{ groups.vault }}"
+  with_items:
+    - root_token
+    - unseal_keys
+
+- name: bootstrap/sync_secrets | Set fact based on sync_file_results
+  set_fact:
+    vault_secrets_available: "{{ vault_secrets_available|default(true) and not item.no_srcs }}"
+  with_items: "{{ sync_file_results|d([]) }}"
+
+- name: bootstrap/sync_secrets | Reset sync_file_results to avoid variable bleed
+  set_fact:
+    sync_file_results: []
+
+- name: bootstrap/sync_secrets | Print out warning message if secrets are not available and vault is initialized
+  pause:
+    prompt: >
+         Vault orchestration may not be able to proceed. The Vault cluster is initialzed, but
+         'root_token' or 'unseal_keys' were not found in {{ vault_secrets_dir }}. These are
+         needed for many vault orchestration steps.
+  when: vault_cluster_is_initialized and not vault_secrets_available
+
+- name: bootstrap/sync_secrets | Cat root_token from a vault host
+  command: "cat {{ vault_secrets_dir }}/root_token"
+  register: vault_root_token_cat
+  when: vault_secrets_available and inventory_hostname == groups.vault|first
+
+- name: bootstrap/sync_secrets | Cat unseal_keys from a vault host
+  command: "cat {{ vault_secrets_dir }}/unseal_keys"
+  register: vault_unseal_keys_cat
+  when: vault_secrets_available and inventory_hostname == groups.vault|first
+
+- name: bootstrap/sync_secrets | Set needed facts for Vault API interaction when Vault is already running
+  set_fact:
+    vault_root_token: "{{ hostvars[groups.vault|first]['vault_root_token_cat']['stdout'] }}"
+    vault_unseal_keys: "{{ hostvars[groups.vault|first]['vault_unseal_keys_cat']['stdout_lines'] }}"
+  when: vault_secrets_available
+
+- name: bootstrap/sync_secrets | Update vault_headers if we have the root_token
+  set_fact:
+    vault_headers: "{{ vault_client_headers | combine({'X-Vault-Token': vault_root_token}) }}"
+  when: vault_secrets_available