Vault security hardening and role isolation

roles/kubernetes/secrets/tasks/gen_certs_vault.yml

@@ -0,0 +1,84 @@
+---
+
+- name: gen_certs_vault | Read in the local credentials
+  command: cat /etc/vault/roles/kube/userpass
+  register: kube_vault_creds_cat
+  when: inventory_hostname == groups['k8s-cluster']|first
+
+- name: gen_certs_vault | Set facts for read Vault Creds
+  set_fact:
+    kube_vault_creds: "{{ hostvars[groups['k8s-cluster']|first]['kube_vault_creds_cat']['stdout'] | from_json }}"
+  when: inventory_hostname == groups['k8s-cluster']|first
+
+- name: gen_certs_vault | Log into Vault and obtain an token
+  uri:
+    url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}/v1/auth/userpass/login/{{ kube_vault_creds.username }}"
+    headers:
+      Accept: application/json
+      Content-Type: application/json 
+    method: POST
+    body_format: json
+    body:
+      password: "{{ kube_vault_creds.password }}"
+  register: kube_vault_login_result
+  when: inventory_hostname == groups['k8s-cluster']|first
+
+- name: gen_certs_vault | Set fact for Vault API token
+  set_fact:
+    kube_vault_headers:
+        Accept: application/json
+        Content-Type: application/json
+        X-Vault-Token: "{{ hostvars[groups['k8s-cluster']|first]['kube_vault_login_result']['json']['auth']['client_token'] }}"
+
+# Issue certs to kube-master nodes
+- include: ../../../vault/tasks/shared/issue_cert.yml
+  vars:
+    issue_cert_copy_ca: "{{ item == kube_master_certs_needed|first }}"
+    issue_cert_file_group: "{{ kube_cert_group }}"
+    issue_cert_file_owner: kube
+    issue_cert_headers: "{{ kube_vault_headers }}"
+    issue_cert_hosts: "{{ groups['kube-master'] }}"
+    issue_cert_path: "{{ item }}"
+    issue_cert_role: kube
+    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
+  with_items: "{{ kube_master_certs_needed|d([]) }}"
+  when: inventory_hostname in groups['kube-master']
+
+- include: ../../../vault/tasks/shared/issue_cert.yml
+  vars:
+    issue_cert_alt_names: >-
+        {{
+        groups['kube-master'] +
+        ['kubernetes.default.svc.cluster.local', 'kubernetes.default.svc', 'kubernetes.default', 'kubernetes'] +
+        ['localhost']
+        }}
+    issue_cert_file_group: "{{ kube_cert_group }}"
+    issue_cert_file_owner: kube
+    issue_cert_headers: "{{ kube_vault_headers }}" 
+    issue_cert_hosts: "{{ groups['kube-master'] }}"
+    issue_cert_ip_sans: >-
+        [
+        {%- for host in groups['kube-master']  -%}
+        "{{ hostvars[host]['ansible_default_ipv4']['address'] }}",
+        {%- endfor -%}
+        "127.0.0.1","::1","{{ kube_apiserver_ip }}"
+        ]
+    issue_cert_path: "{{ item }}"
+    issue_cert_role: kube
+    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
+  with_items: "{{ kube_api_certs_needed|d([]) }}"
+  when: inventory_hostname in groups['kube-master']
+
+# Issue node certs to k8s-cluster nodes
+- include: ../../../vault/tasks/shared/issue_cert.yml
+  vars:
+    issue_cert_copy_ca: "{{ item == kube_node_certs_needed|first }}"
+    issue_cert_file_group: "{{ kube_cert_group }}"
+    issue_cert_file_owner: kube
+    issue_cert_headers: "{{ kube_vault_headers }}" 
+    issue_cert_hosts: "{{ groups['k8s-cluster'] }}"
+    issue_cert_path: "{{ item }}"
+    issue_cert_role: kube
+    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
+  with_items: "{{ kube_node_certs_needed|d([]) }}"
+  when: inventory_hostname in groups['k8s-cluster']