Initial commit

tasks/main.yml

@@ -0,0 +1,73 @@
+- name: install node-exporter
+  apt:
+    pkg: prometheus-node-exporter
+
+- name: manage tls
+  when: prometheus_agent.tls.manage
+  block:
+  - set_fact:
+      inventory_certs: "{{ certificates.certs|d({}) }}"
+      prometheus_certs: |
+        {
+          'prometheus_agent': {
+            'san': ['{{ inventory_hostname }}'],
+            'backend': 'selfsigned'
+          }
+        }
+  - include_role:
+      name: certificates
+    vars:
+      certificates:
+        certs: "{{ {}|combine(prometheus_certs, inventory_certs, recursive=True) }}"
+
+- name: copy node-exporter config
+  template:
+    src: node-exporter.j2
+    dest: /etc/default/prometheus-node-exporter
+  notify: restart node-exporter
+
+- name: slurp up all scraper certs
+  loop: "{{ prometheus_agent.scrapers.keys()|list }}"
+  delegate_to: "{{ item }}"
+  slurp:
+    src: /etc/ssl/prometheus_scraper.crt
+  register: scrapercertfiles
+
+- name: slurp up agent cert
+  slurp:
+    src: /etc/ssl/prometheus_agent.crt
+  register: agentcertfiles
+
+- name: setup stunnel client
+  when: prometheus_agent.tls.mode == "stunnel"
+  block:
+  - name: install stunnel
+    apt:
+      pkg: stunnel
+  - name: copy scraper ssl certs
+    loop: "{{ scrapercertfiles.results }}"
+    copy:
+      content: "{{ item.content | b64decode }}"
+      dest: "/etc/ssl/scraper_{{ item.item }}.crt"
+  - name: copy stunnel config
+    template:
+      src: stunnel-client.conf.j2
+      dest: /etc/stunnel/prometheus-agent.conf
+    notify: restart stunnel
+  - name: copy agent certs to scrapers
+    loop: "{{ prometheus_agent.scrapers.keys()|list }}"
+    delegate_to: "{{ item }}"
+    copy:
+      content: "{{ agentcertfiles.content | b64decode }}"
+      dest: "/etc/prometheus/targetcerts/{{ inventory_hostname }}.crt"
+
+- set_fact:
+    labels_ansible_groups: '{ {% for g in group_names %}"ansible_group_{{g}}": True{% if not loop.last %}, {% endif %}{% endfor %} }'
+- set_fact:
+    merged_prometheus_labels: "{{ {}|combine((labels_ansible_groups if prometheus_agent.ansible_groups_as_labels else {}), prometheus_agent.labels) }}"
+- name: setup scraper
+  loop: "{{ prometheus_agent.scrapers.keys()|list }}"
+  delegate_to: "{{ item }}"
+  template:
+    src: node-scraper.j2
+    dest: /etc/prometheus/conf.d/scrape_configs/{{ inventory_hostname }}.conf