first implement of blackbox

handlers/main.yml

@@ -53,3 +53,10 @@
     state: restarted
     enabled: yes
   tags: ['prometheus']
+
+- name: 'prometheus | blackbox exporter | restart service'
+  systemd:
+    name: prometheus-blackbox-exporter.service
+    state: restarted
+    enabled: yes
+  tags: ['prometheus']

tasks/blackbox.yml

@@ -0,0 +1,56 @@
+---
+- name: 'prometheus | blackbox exporter | get latest release from GitHub'
+  shell: curl --silent "https://api.github.com/repos/prometheus/blackbox_exporter/releases/latest" | jq -r .tag_name | sed "s/v//"
+  args:
+    warn: false
+  register: prometheus_blackbox_exporter_latest_version
+  run_once: true
+
+- name: 'prometheus | blackbox exporter | download'
+  get_url:
+    url: https://github.com/prometheus/blackbox_exporter/releases/download/v{{ prometheus_blackbox_exporter_version|default(prometheus_blackbox_exporter_latest_version.stdout) }}/blackbox_exporter-{{ prometheus_blackbox_exporter_version|default(prometheus_blackbox_exporter_latest_version.stdout) }}.linux-amd64.tar.gz
+    dest: /tmp
+
+- name: 'prometheus | blackbox exporter | unarchive'
+  unarchive:
+    remote_src: yes
+    src: /tmp/blackbox_exporter-{{ prometheus_blackbox_exporter_version|default(prometheus_blackbox_exporter_latest_version.stdout) }}.linux-amd64.tar.gz
+    dest: /tmp
+
+- name: 'prometheus | blackbox exporter | move to /usr/local/bin'
+  copy:
+    src: /tmp/blackbox_exporter-{{ prometheus_blackbox_exporter_version|default(prometheus_blackbox_exporter_latest_version.stdout) }}.linux-amd64/blackbox_exporter
+    dest: /usr/local/bin/prometheus-blackbox-exporter
+    remote_src: yes
+    owner: root
+    group: root
+    mode: 0755
+  notify:
+    - 'prometheus | blackbox exporter | restart service'
+
+- name: 'prometheus | blackbox exporter | configuration'
+  template:
+    src: conf/prometheus-blackbox-exporter.j2
+    dest: /etc/prometheus/prometheus-blackbox-exporter.yml
+    owner: root
+    group: root
+    mode: 0600
+  when:
+    - prometheus_blackbox_exporter_user is defined
+  register: prometheus_blackbox_exporter_configuration
+  notify:
+    - 'prometheus | blackbox exporter | restart service'
+
+- name: 'prometheus | blackbox exporter | install unit file to systemd'
+  template:
+    src: systemd/prometheus-blackbox-exporter.service.j2
+    dest: /etc/systemd/system/prometheus-blackbox-exporter.service
+    owner: root
+    group: root
+    mode: 0600
+
+- name: 'prometheus | blackbox exporter | configure systemd to use service'
+  systemd:
+    daemon_reload: yes
+    enabled: yes
+    name: prometheus-blackbox-exporter.service

tasks/main.yml

@@ -44,3 +44,8 @@
   include_tasks: 'varnish_exporter.yml'
   when:
     - "'varnish' in prometheus_exporter_packages"
+
+- name: 'prometheus | Blackbox exporter'
+  include_tasks: 'varnish_exporter.yml'
+  when:
+    - "'blackbox' in prometheus_exporter_packages"

templates/conf/prometheus-blackbox-exporter.yml.j2

@@ -0,0 +1,37 @@
+modules:
+  http_2xx:
+    prober: http
+    timeout: 30s
+    http:
+      preferred_ip_protocol: "ipv4"
+  http_post_2xx:
+    prober: http
+    http:
+      preferred_ip_protocol: "ipv4"
+      method: POST
+  tcp_connect:
+    prober: tcp
+  pop3s_banner:
+    prober: tcp
+    tcp:
+      query_response:
+      - expect: "^+OK"
+      tls: true
+      tls_config:
+        insecure_skip_verify: false
+  ssh_banner:
+    prober: tcp
+    tcp:
+      query_response:
+      - expect: "^SSH-2.0-"
+  irc_banner:
+    prober: tcp
+    tcp:
+      query_response:
+      - send: "NICK prober"
+      - send: "USER prober prober prober :prober"
+      - expect: "PING :([^ ]+)"
+        send: "PONG ${1}"
+      - expect: "^:[^ ]+ 001"
+  icmp:
+    prober: icmp

templates/conf/prometheus.yml.j2

@@ -32,6 +32,7 @@ scrape_configs:
       - targets: ['localhost:9090']
 
 {% if prometheus_node_exporter_targets is defined %}
+  # node exporter #
   - job_name: node
     scrape_interval: 30s
     scrape_timeout: 10s
@@ -43,6 +44,7 @@ scrape_configs:
 {% endif %}
 
 {% if prometheus_mysqld_exporter_targets is defined %}
+  # mysql exporter #
   - job_name: mysql
     scrape_interval: 30s
     scrape_timeout: 10s
@@ -65,6 +67,7 @@ scrape_configs:
 {% endif %}
 
 {% if prometheus_mongodb_exporter_targets is defined %}
+  # mongoDB exporter #
   - job_name: mongodb
     scrape_interval: 30s
     scrape_timeout: 10s
@@ -87,6 +90,7 @@ scrape_configs:
 {% endif %}
 
 {% if prometheus_postgres_exporter_targets is defined %}
+  # postgresql exporter #
   - job_name: postgresql
     scrape_interval: 30s
     scrape_timeout: 10s
@@ -109,6 +113,7 @@ scrape_configs:
 {% endif %}
 
 {% if prometheus_phpfpm_exporter_targets is defined %}
+  # PHP-FPM exporter #
   - job_name: phpfpm
     scrape_interval: 30s
     scrape_timeout: 10s
@@ -120,6 +125,7 @@ scrape_configs:
 {% endif %}
 
 {% if prometheus_apache_exporter_targets is defined %}
+  # apache exporter #
   - job_name: apache
     scrape_interval: 30s
     scrape_timeout: 10s
@@ -131,6 +137,7 @@ scrape_configs:
 {% endif %}
 
 {% if prometheus_haproxy_exporter_targets is defined %}
+  # haproxy exporter #
   - job_name: haproxy
     scrape_interval: 30s
     scrape_timeout: 10s
@@ -151,3 +158,45 @@ scrape_configs:
         - {{ target }}:9131
 {% endfor %}
 {% endif %}
+
+//
+{% if prometheus_blackbox_exporter_targets is defined %}
+  # blacbox #
+{% for target in prometheus_blackbox_exporter_http.values() %}
+  ## http check ##
+  - job_name: blackbox - url {{ target.name }}
+    scrape_interval: 30s
+    scrape_timeout: 10s
+    metrics_path: {{ target.metrics_path }}
+    params:
+      module: [http_2xx]
+    static_configs:
+      - targets:
+        - {{target.host }}
+    relabel_configs:
+      - source_labels: [__address__]
+        target_label: __param_target
+      - source_labels: [__param_target]
+        target_label: instance
+      - target_label: __address__
+        replacement: localhost:9115
+{% endfor %}
+{% for target in prometheus_blackbox_exporter_ping.values() %}
+  ## ping ##
+  - job_name: blackbox - ping {{ target.name }}
+    scrape_interval: 30s
+    scrape_timeout: 10s
+    params:
+      module: [icmp]
+    static_configs:
+      - targets:
+         - {{ target.host }}
+    relabel_configs:
+      - source_labels: [__address__]
+        target_label: __param_target
+      - source_labels: [__param_target]
+        target_label: instance
+      - target_label: __address__
+        replacement: localhost:9115
+{% endfor %}
+{% endif %}

templates/systemd/prometheus-blackbox-exporter.service.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=Prometheus Blacbox Exporter
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/prometheus-blackbox-exporter --config.file /etc/prometheus/prometheus-blackbox-exporter.yml
+
+[Install]
+WantedBy=multi-user.target