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

```yaml 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: https://github.com/prometheus/blackbox_exporter/pull/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.