1 files changed, 79 insertions, 0 deletions
diff --git a/roles/kubernetes/addons/node-feature-discovery/tasks/tls-worker.yml b/roles/kubernetes/addons/node-feature-discovery/tasks/tls-worker.yml
new file mode 100644
index 00000000..888c0872
--- /dev/null
+++ b/roles/kubernetes/addons/node-feature-discovery/tasks/tls-worker.yml
@@ -0,0 +1,79 @@
+---
+- name: create certs directory for nfd-worker
+  file:
+    path: /etc/kubernetes/node-feature-discovery/certs
+    state: directory
+    owner: nobody
+    group: root
+    mode: 0500
+
+- name: install CA certificate
+  copy:
+    content: "{{ node_feature_discovery_ca_certificate.content | b64decode }}"
+    dest: /etc/kubernetes/node-feature-discovery/certs/ca.crt
+
+- name: create private key for worker certificate
+  openssl_privatekey:
+    path: /etc/kubernetes/node-feature-discovery/certs/tls.key
+    type: RSA
+    size: 4096
+    owner: nobody
+    group: root
+    mode: 0400
+
+- name: create signing request for worker certificate
+  openssl_csr:
+    path: /etc/kubernetes/node-feature-discovery/certs/tls.csr
+    privatekey_path: /etc/kubernetes/node-feature-discovery/certs/tls.key
+    CN: "{{ kubernetes_node_name }}"
+    key_usage:
+    - digitalSignature
+    key_usage_critical: yes
+    extended_key_usage:
+    - clientAuth
+    extended_key_usage_critical: yes
+    basic_constraints:
+    - 'CA:FALSE'
+    basic_constraints_critical: yes
+
+- name: slurp CSR for worker certificate
+  slurp:
+    src: /etc/kubernetes/node-feature-discovery/certs/tls.csr
+  register: node_feature_discovery_worker_csr
+
+- name: check if worker certificate already exists
+  stat:
+    path: /etc/kubernetes/node-feature-discovery/certs/tls.crt
+  register: node_feature_discovery_worker_certificate_stat
+
+- name: read worker certificate validity
+  when: node_feature_discovery_worker_certificate_stat.stat.exists
+  openssl_certificate_info:
+    path: /etc/kubernetes/node-feature-discovery/certs/tls.crt
+    valid_at:
+      ten_years: '+3650d'
+  register: node_feature_discovery_worker_certificate_info
+
+- name: slurp existing worker certificate
+  when: node_feature_discovery_worker_certificate_stat.stat.exists
+  slurp:
+    src: /etc/kubernetes/node-feature-discovery/certs/tls.crt
+  register: node_feature_discovery_worker_certificate_current
+
+- name: generate worker certificate
+  delegate_to: "{{ groups['_kubernetes_primary_controlplane_node_'] | first }}"
+  community.crypto.x509_certificate_pipe:
+    content: "{{ node_feature_discovery_worker_certificate_current.content | default('') | b64decode }}"
+    csr_content: "{{ node_feature_discovery_worker_csr.content | b64decode }}"
+    provider: ownca
+    ownca_path: /etc/kubernetes/addons/node-feature-discovery/ca/crt.pem
+    ownca_privatekey_path: /etc/kubernetes/addons/node-feature-discovery/ca/key.pem
+    ownca_digest: sha256
+    ownca_not_after: "+18250d" ## 50 years
+    force: "{{ node_feature_discovery_worker_certificate_stat.stat.exists and (not node_feature_discovery_worker_certificate_info.valid_at.ten_years) }}"
+  register: node_feature_discovery_worker_cert
+
+- name: store worker certificate
+  copy:
+    content: "{{ node_feature_discovery_worker_cert.certificate }}"
+    dest: /etc/kubernetes/node-feature-discovery/certs/tls.crt