[node_exporter] add new module of node-exporter

Author: astor-oss

artifacts/config.yml

@@ -1,9 +1,10 @@
 ---
 name: dingodb-deploy
-version: v0.2.0
+version: develop
 artifacts:
-  - { name: "cfg_jdk_local_path",  path_in_repo: "jdk-8u171-linux-x64.tar.gz" }
-  - { name: "cfg_system_open_file_limits_path",  path_in_repo: "system/centos8/limits/limits.conf" }
-  - { name: "cfg_dingodb_local_path", path_in_repo: "dingo.zip"}
-  - { name: "prometheus_local_file", path_in_repo: "prometheus-2.14.0.linux-amd64.tar.gz" }
-  - { name: "grafana_local_file", path_in_repo: "grafana-7.3.1.linux-amd64.tar.gz"}
+  - {name: "cfg_jdk_local_path",  path_in_repo: "jdk-8u171-linux-x64.tar.gz" }
+  - {name: "cfg_system_open_file_limits_path",  path_in_repo: "system/centos8/limits/limits.conf" }
+  - {name: "cfg_dingodb_local_path", path_in_repo: "dingo.zip"}
+  - {name: "prometheus_local_file", path_in_repo: "prometheus-2.14.0.linux-amd64.tar.gz" }
+  - {name: "grafana_local_file", path_in_repo: "grafana-7.3.1.linux-amd64.tar.gz"}
+  - {name: "node_exporter_local_file", path_in_repo: "node_exporter-0.18.1.linux-amd64.tar.gz"}

filter_plugins/custom_filter.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+import json
+
+
+class FilterModule(object):
+    def filters(self):
+        return {
+            'cidr': self.cidr,
+            'json_result': self.json_result,
+        }
+
+    @staticmethod
+    def cidr(ip, netmask):
+        return ip + "/" + str(sum(bin(int(x)).count('1') for x in netmask.split('.')))
+
+    @staticmethod
+    def json_result(json_str):
+        json_result = {}
+        try:
+            json_result = json.loads(json_str)
+        except json.JSONDecodeError:
+            pass
+        return json_result

group_vars/all/_shared.yml

@@ -43,16 +43,17 @@ blackbox_exporter_port: 19115
 blackbox_exporter_server: "{{ prometheus_server }}"
 
 # Node Exporter
+install_node_exporter: true
 node_exporter_port: 19100
-node_exporter_servers: "{{ ansible_context | server_list('node_exporter') }}"
+node_exporter_servers: "{{ groups['node_exporter'] }}"
 
 # Process Exporter
 process_exporter_port: 19256
-process_exporter_servers: "{{ ansible_context | server_list('process_exporter') }}"
+process_exporter_servers: "{{ groups['process_exporter'] }}"
 
 # Prometheus
 prometheus_port: 19090
-prometheus_server: "{{ ansible_context | local_or_default('prometheus') }}"
+prometheus_server: "{{ groups['prometheus'][0] }}"
 prometheus_url: "http://{{ prometheus_server }}:{{ prometheus_port }}/prometheus"
 
 # Pushgateway
@@ -62,5 +63,5 @@ pushgateway_server: "{{ prometheus_server }}"
 # Grafana
 install_grafana: true
 grafana_port: 3000
-grafana_server: "{{ ansible_context | local_or_default('grafana') }}"
-default_dashboard_uid: "RNezu0fWk"
+grafana_server: "{{ groups['grafana'][0] }}"
+default_dashboard_uid: "RNezu0fWk"

playbook.yml

@@ -42,3 +42,10 @@
   tasks:
     - include_role: name=grafana
       when: install_grafana
+
+- hosts:
+    - all_nodes
+  tasks:
+    - include_role: name=node_exporter
+      when: install_node_exporter
+

roles/grafana/tasks/main.yml

@@ -1,5 +1,9 @@
 ---
 
+- name: "Check grafana should install or Not"
+  meta: end_play
+  when: install_grafana == false
+
 - name: "Load artifacts info"
   action: resolve_artifacts
 
@@ -155,7 +159,7 @@
   register: get_dashboard_result
 
 - debug: var=get_dashboard_result
-  when: get_dashboard_result.rc != 0
+#  when: get_dashboard_result.rc != 0
 
 - set_fact:
     dingo_dashboard_id: "{{ (get_dashboard_result.stdout | json_result )['dashboard']['id'] }}"