From 96232fb34906f9efd98189838141d896668d3dd8 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 2 Jun 2021 02:25:33 +0200
Subject: prometheus: preliminary tls support for exporter connections

---
 .../prometheus/exporter/base/tasks/tls.yml         | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 roles/monitoring/prometheus/exporter/base/tasks/tls.yml

(limited to 'roles/monitoring/prometheus/exporter/base/tasks/tls.yml')

diff --git a/roles/monitoring/prometheus/exporter/base/tasks/tls.yml b/roles/monitoring/prometheus/exporter/base/tasks/tls.yml
new file mode 100644
index 00000000..b2731b09
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/base/tasks/tls.yml
@@ -0,0 +1,61 @@
+---
+- name: install python-cryptoraphy
+  apt:
+    name: "{{ python_basename }}-cryptography"
+    state: present
+
+- name: create base directory
+  file:
+    path: /etc/ssl/prometheus
+    state: directory
+
+- name: create exporter cert/key directory
+  file:
+    path: /etc/ssl/prometheus/exporter
+    state: directory
+    owner: root
+    group: prometheus-exporter
+    mode: 0750
+
+- name: create exporter private key
+  openssl_privatekey:
+    path: /etc/ssl/prometheus/exporter/key.pem
+    type: RSA
+    size: 4096
+    owner: prometheus-exporter
+    group: prometheus-exporter
+    mode: 0400
+  notify: restart prometheus-exporter-exporter
+
+- name: create signing request for exporter certificate
+  openssl_csr:
+    path: /etc/ssl/prometheus/exporter/csr.pem
+    privatekey_path: /etc/ssl/prometheus/exporter/key.pem
+    CN: "{{ inventory_hostname }}"
+    subject_alt_name:
+    - "DNS:{{ host_name }}.{{ host_domain }}"
+    - "IP:{{ ansible_default_ipv4.address }}"
+    key_usage:
+    - digitalSignature
+    key_usage_critical: yes
+    extended_key_usage:
+    - serverAuth
+    extended_key_usage_critical: yes
+    basic_constraints:
+    - 'CA:FALSE'
+    basic_constraints_critical: yes
+
+## TODO: implement remote singing using server
+
+- name: create exporter certificate
+  openssl_certificate:
+    path: /etc/ssl/prometheus/exporter/crt.pem
+    csr_path: /etc/ssl/prometheus/exporter/csr.pem
+    provider: ownca
+    ownca_path: /etc/ssl/prometheus/ca-crt.pem
+    ownca_privatekey_path: /etc/ssl/prometheus/ca/key.pem
+    ownca_digest: sha256
+    ownca_not_after: "+18250d" ## 50 years
+  notify: restart prometheus-exporter-exporter
+
+## TODO: install /etc/ssl/prometheus/ca-crt.pem from server
-- 
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