Redirect probe logs to stdout

[jkroepke]

Host operating system: output of uname -a

Linux

blackbox_exporter version: output of blackbox_exporter --version

0.24.0

What is the blackbox.yml module config.

Details

modules:
    grpc:
        prober: grpc
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
        grpc:
            tls: true
            ip_protocol_fallback: true
            preferred_ip_protocol: ip4
    grpc_plain:
        prober: grpc
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
        grpc:
            service: service1
            ip_protocol_fallback: true
    http_2xx:
        prober: http
        http:
            preferred_ip_protocol: ip4
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
    http_post_2xx:
        prober: http
        http:
            ip_protocol_fallback: true
            method: POST
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
    icmp:
        prober: icmp
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
    icmp_ttl5:
        prober: icmp
        timeout: 5s
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
            ttl: 5
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
    irc_banner:
        prober: tcp
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
            query_response:
                - send: NICK prober
                - send: USER prober prober prober :prober
                - expect: PING :([^ ]+)
                  send: PONG ${1}
                - expect: ^:[^ ]+ 001
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
    pop3s_banner:
        prober: tcp
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
            query_response:
                - expect: ^+OK
            tls: true
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
    ssh_banner:
        prober: tcp
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
            query_response:
                - expect: ^SSH-2.0-
                - send: SSH-2.0-blackbox-ssh-check
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true
    tcp_connect:
        prober: tcp
        http:
            ip_protocol_fallback: true
            follow_redirects: true
            enable_http2: true
        tcp:
            ip_protocol_fallback: true
        icmp:
            ip_protocol_fallback: true
            ttl: 64
        dns:
            ip_protocol_fallback: true
            recursion_desired: true

What is the prometheus.yml scrape config.

N/A

I would like to see the logs produced by the probe on the stdout of the containers. --log.level=error, the log could be reduiced to a minimum.

This avoid the required to make the export web ui Accessable.

[rei-ber]

I am also interested in this feature :) Is there any plan to implement it or another option to get the logs into stdout?

[jkroepke]

@rei-ber PR is merged: #1091

[rei-ber]

Thanks for implementing :)
When do you deploy a new release, which contains this feature?

[jkroepke]

I'm not a maintainer here, maybe @electron0zero cam give us some details.

[electron0zero]

it will be in next release but we don't have timeline for next release, in the meantime you can use docker images built from master branch. we publish them here: https://quay.io/repository/prometheus/blackbox-exporter?tab=info

another option is build it from master and use that. building it is fairly easy, see https://github.com/prometheus/blackbox_exporter?tab=readme-ov-file#building-the-software for details.

[frittentheke]

@electron0zero can this be closed? I suppose the release 0.25.0 now does what @rei-ber and @jkroepke want via --log.prober arg?