103 lines
3.1 KiB
YAML
103 lines
3.1 KiB
YAML
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---
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- name: Configure Nginx monitoring in Prometheus
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hosts: 192.168.0.105
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become: yes
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tasks:
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- name: Check if nginx config already exists
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stat:
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path: /etc/prometheus/nginx-app1.yml
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register: nginx_config
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- name: Create Nginx scrape config
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copy:
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content: |
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# Nginx stub_status metrics
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- job_name: 'nginx-app1'
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scrape_interval: 15s
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scrape_timeout: 10s
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metrics_path: /status
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static_configs:
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- targets: ['192.168.0.110:80']
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labels:
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instance: 'app1'
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service: 'nginx'
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job: 'nginx'
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metric_relabel_configs:
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- source_labels: [__address__]
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target_label: instance
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- source_labels: [__address__]
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regex: '([^:]+):\d+'
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replacement: '${1}'
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target_label: host
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dest: /etc/prometheus/nginx-app1.yml
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owner: root
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group: root
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mode: '0644'
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when: not nginx_config.stat.exists
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register: config_created
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- name: Include nginx config in prometheus.yml
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lineinfile:
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path: /etc/prometheus/prometheus.yml
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line: ' - "nginx-app1.yml"'
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insertafter: '^rule_files:'
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state: present
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register: config_modified
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- name: Test Prometheus configuration
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command: promtool check config /etc/prometheus/prometheus.yml
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register: prometheus_test
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changed_when: false
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- name: Show test result
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debug:
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msg: "{{ prometheus_test.stdout_lines }}"
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- name: Reload Prometheus if config changed
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systemd:
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name: prometheus
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state: reloaded
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when: (config_created.changed or config_modified.changed) and prometheus_test.rc == 0
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- name: Wait for Prometheus to reload
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pause:
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seconds: 3
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- name: Verify Nginx target in Prometheus
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shell: |
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curl -s "http://localhost:9090/api/v1/targets" | python3 -c "
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import json, sys
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data = json.load(sys.stdin)
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for target in data['data']['activeTargets']:
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if 'nginx' in target['labels'].get('job', ''):
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print(f\"Found nginx target: {target['labels']} - Health: {target['health']}\")
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"
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register: target_check
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changed_when: false
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ignore_errors: yes
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- name: Show target check result
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debug:
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msg: "{{ target_check.stdout_lines if target_check.stdout_lines else 'Nginx target not found' }}"
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- name: Check if nginx metrics are available
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shell: |
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# Wait a bit for metrics to appear
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sleep 2
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curl -s "http://localhost:9090/api/v1/query?query=up{job='nginx-app1'}" | python3 -c "
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import json, sys
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data = json.load(sys.stdin)
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if data['status'] == 'success' and data['data']['result']:
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for result in data['data']['result']:
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print(f\"Nginx metrics UP: {result['metric']}\")
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else:
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print(\"Nginx metrics not available yet\")
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"
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register: metrics_check
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changed_when: false
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- name: Show metrics check result
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debug:
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msg: "{{ metrics_check.stdout_lines }}"
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