// Aula 13 - Criando uma HTTP Service Discovery parte 2

# pip install Flask-BasicAuth

# cd /etc/prometheus/

# openssl genrsa -out chave_privada.pem 2048

# openssl req -new -x509 -sha256 -key chave_privada.pem -out certificado_publico.pem -days 365
 
Agora, temos que editar o arquivo 'prometheus.yml' e atualizar todo o seu 'job_name':

  - job_name: servicos
    http_sd_configs:
      - url: https://192.168.15.141:8080/servicos
        basic_auth:
          username: 'usuario'
          password: 'senha'
        tls_config:
          insecure_skip_verify: true
    metrics_path: '/servicos'
    scheme: 'https'
    relabel_configs:
      - source_labels: [__address__]
        target_label: instance

# sudo systemctl restart prometheus

# curl -X POST -H "Content-Type: application/json" -d '{"targets": [ "windows2012:9100", "windows2016:9100" ], "labels": {"team": "servidor", "job": "windows"}' -u usuario:senha https://192.168.15.141:8080/servicos --insecure

O arquivo completo ficou assim:

#!/usr/bin/env python3
# -*- coding: UTF-8 -*- 
# httpsd.py

import ssl
import os

from flask import Flask, jsonify, request
from flask_basicauth import BasicAuth
from servicos import servicos

app = Flask(__name__)

app.config['BASIC_AUTH_USERNAME'] = 'usuario'
app.config['BASIC_AUTH_PASSWORD'] = 'senha'

basic_auth = BasicAuth(app)

# Adicionar um novo serviço
novo_servico = {
		"targets": [ "windows2008:9100", "windows2022:9100" ],
		"labels": {
			"team": "banco de dados",
			"job": "windows"
		}
	}
servicos.append(novo_servico)

# Imprimir a lista atualizada de serviços
print(servicos)

@app.route('/servicos', methods=['GET'])
@basic_auth.required
def listar_servicos():
    return jsonify(servicos)

@app.route('/servicos', methods=['POST'])
def adicionar_servico():
    novo_servico = request.json
    servicos.append(novo_servico)
    return jsonify(novo_servico)
    
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS)
cert_file = os.path.join(os.path.dirname(__file__), 'certificado_publico.pem')
key_file = os.path.join(os.path.dirname(__file__), 'chave_privada.pem')
ssl_context.load_cert_chain(cert_file, key_file)

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8080, ssl_context=ssl_context)
    
Arquivo "servicos.py":
    
#!/usr/bin/env python3
# -*- coding: UTF-8 -*- 
# servicos.py

servicos = [
	{
		"targets": [ "windows2012:9100", "rockylinux1:9100" ],
		"labels": {
			"team": "infra",
			"job": "windows"
		}
	},
	{
		"targets": [ "ubuntuserver:9090" ],
		"labels": {
			"team": "monitoring",
			"job": "prometheus"
		}
	}
]