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ansible-config/playbooks/add-blackbox-carefully.yml

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---
- name: Add Blackbox Exporter job to existing Prometheus config
hosts: 192.168.0.105
become: yes
tasks:
- name: Backup current config
copy:
src: /etc/prometheus/prometheus.yml
dest: /etc/prometheus/prometheus.yml.backup-blackbox-{{ ansible_date_time.epoch }}
remote_src: yes
tags: prometheus
- name: Check if blackbox job already exists
shell: |
grep -q 'job_name:.*blackbox' /etc/prometheus/prometheus.yml && echo "exists" || echo "not exists"
register: blackbox_exists
changed_when: false
tags: prometheus
- name: Add blackbox job to scrape_configs (if not exists)
blockinfile:
path: /etc/prometheus/prometheus.yml
insertbefore: '^remote_write:'
block: |
- job_name: blackbox
honor_timestamps: true
track_timestamps_staleness: false
scrape_interval: 15s
scrape_timeout: 10s
metrics_path: /probe
params:
module: [http_2xx]
scheme: http
follow_redirects: true
enable_http2: true
static_configs:
- targets:
# Внутренние сервисы стенда
- "http://192.168.0.110/"
- "http://192.168.0.111:9187/metrics"
- "http://192.168.0.112:8080/get"
- "http://192.168.0.100:3000/"
- "http://192.168.0.101:9100/metrics"
- "http://192.168.0.103:8200/ui/"
- "http://192.168.0.104:8428/metrics"
- "http://192.168.0.105:9090/metrics"
- "http://192.168.0.106:3000"
# Внешние домены
- "http://forgejo.pvenode.ru/"
- "http://grafana.pvenode.ru/"
- "http://prometheus.pvenode.ru/"
- "http://app1.pvenode.ru/"
- "http://wiki.pvenode.ru/"
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: 192.168.0.112:8083
metric_relabel_configs:
- source_labels: [__address__]
separator: ;
regex: (.*)
target_label: instance
replacement: $1
action: replace
- source_labels: [__address__]
separator: ;
regex: ([^:]+):\d+
target_label: host
replacement: ${1}
action: replace
marker: "# {mark} ANSIBLE MANAGED BLOCK - blackbox"
when: blackbox_exists.stdout == "not exists"
tags: prometheus
- name: Check Prometheus configuration
command: promtool check config /etc/prometheus/prometheus.yml
register: promtool_check
failed_when: promtool_check.rc != 0
changed_when: false
tags: prometheus
- name: Show config check result
debug:
msg: "{{ promtool_check.stdout_lines }}"
when: promtool_check.rc == 0
tags: prometheus
- name: Reload Prometheus if config is valid
systemd:
name: prometheus
state: reloaded
when: promtool_check.rc == 0
tags: prometheus
- name: Show status
debug:
msg: |
Blackbox job {{ "added successfully" if promtool_check.rc == 0 else "failed to add" }}
Backup created: /etc/prometheus/prometheus.yml.backup-blackbox-{{ ansible_date_time.epoch }}
tags: prometheus