modules:
    ping:
        prober: icmp
        timeout: 5s
        http:
            ip_protocol_fallback: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            preferred_ip_protocol: ip4
            ip_protocol_fallback: true
        dns:
            ip_protocol_fallback: true
    services:
        prober: http
        timeout: 5s
        http:
            valid_status_codes:
                - 200
                - 404
            valid_http_versions:
                - HTTP/1.1
                - HTTP/2.0
            preferred_ip_protocol: ip4
            ip_protocol_fallback: true
            fail_if_not_ssl: true
            fail_if_header_not_matches:
                - header: X-Correlation-Id
                  regexp: ^[a-f0-9]+$
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
        dns:
            ip_protocol_fallback: true
    websites:
        prober: http
        timeout: 5s
        http:
            valid_http_versions:
                - HTTP/1.1
                - HTTP/2.0
            preferred_ip_protocol: ip4
            ip_protocol_fallback: true
            fail_if_not_ssl: true
            tls_config:
                insecure_skip_verify: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
        dns:
            ip_protocol_fallback: true