[sr-dev] [kamailio/kamailio] xHTTP_PROM does not include metric_type (Issue #3001)

### Description We have a couple of Kamailio containers running on AWS ECS Fargate. Using a Cloudwatch Agent sidecar container I should be able to collect metrics from the Kamailio containers and push them to Cloudwatch for monitoring. ``` xHTTP_PROM exposes the metrics like this: # Kamailio whole internal statistics kamailio_app_python3_traced_replies 0 1640265350616 kamailio_app_python3_traced_requests 0 1640265350616 kamailio_core_bad_URIs_rcvd 0 1640265350616 kamailio_core_bad_msg_hdr 0 1640265350616 ``` While other prometheus metrics I have seen are throwing metrics like this: ``` # HELP kamailio_core_shmmem_free Free shared memory. # TYPE kamailio_core_shmmem_free gauge ``` ### Troubleshooting #### Reproduction <!-- If the issue can be reproduced, describe how it can be done. --> #### Debugging Data <!-- If you got a core dump, use gdb to extract troubleshooting data - full backtrace, local variables and the list of the code at the issue location. gdb /path/to/kamailio /path/to/corefile bt full info locals list If you are familiar with gdb, feel free to attach more of what you consider to be relevant. --> ``` (paste your debugging data here) ``` #### Log Messages <!-- Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site). --> ``` (paste your log messages here) ``` #### SIP Traffic <!-- If the issue is exposed by processing specific SIP messages, grab them with ngrep or save in a pcap file, then add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site). --> ``` (paste your sip traffic here) ``` ### Possible Solutions <!-- If you found a solution or workaround for the issue, describe it. Ideally, provide a pull request with a fix. --> ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` (paste your output here) ``` * **Operating System**: <!-- Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...; Kernel details (output of `lsb_release -a` and `uname -a`) --> ``` (paste your output here) ``` -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3001 You are receiving this because you are subscribed to this thread. Message ID: &lt;kamailio/kamailio/issues/3001(a)github.com&gt;