sap-metrics

Duct tape gorfc with Golang templates to provide values to Paessler PRTG.

✋ UPDATE!
I think I will create a simple HTTP endpoint like /default_host/sap/public/ping (handler: CL_HTTP_EXT_PING) and skip dealing with RFC calls & setting the right permissions. PRTG can also retrieve values through HTTP, which is simpler.
I really wanted to create something useful in Golang (it was fun to create the template functions). However, sometimes the task is defining the tools, rather than the other way around.

ICF

Therefore, the alternative solution is the following: you need to create the ZCL_HTTP_PRTG_METRICS class in SAP, which generates the necessary metrics for PRTG. The necessary steps are:

1. Create the class within with SE80 (or use Eclipse + ADT).
2. Create a service user (e.g., PRTG) using the SU01 transaction (no role or whatever is needed).
3. Create a service in the SICF transaction and assign the service user and ZCL_HTTP_PRTG_METRICS class as the handler.
4. Done, test it. If you need assistance/help, open an issue or ping me somehow. 🤔

TODO

• format error message
• replace config.yaml with config.json
• config and template filename from parameters
• escape function for texts
• run function modules in parallel
• lot of testing?

NOTES

• PRTG: advanced sensors
• SAP FM list: THUSRINFO GET_CPU_ALL GET_MEM_ALL GET_LAN_SINGLE GET_DISK_SINGLE GET_FSYS_SINGLE ...
• SAP CCMS Monitor Sets: RZ20

Configure CGO + sapnwrfc for gorfc

1. Download and install MSYS2
2. Open MSYS terminal and using pacman, install gcc:
   pacman -S mingw-w64-x86_64-binutils mingw-w64-x86_64-crt-git mingw-w64-x86_64-gcc mingw-w64-x86_64-gcc-libs mingw-w64-x86_64-gdb mingw-w64-x86_64-headers-git mingw-w64-x86_64-libmangle-git mingw-w64-x86_64-libwinpthread-git mingw-w64-x86_64-make mingw-w64-x86_64-pkg-config mingw-w64-x86_64-tools-git mingw-w64-x86_64-winpthreads-git mingw-w64-x86_64-winstorecompat-git
3. Download (somehow) nwrfc750P_10-xxxxxxxx.zip from SAP
4. Extract the include (header files) and the lib (binaries) folders to the ...\msys64\mingw64 folder
5. Add the ...\msys64\mingw64\bin folder to the $PATH env variable: setx PATH "%PATH%;...\msys64\mingw64\bin"

Source: Golang CGO inside Windows · JJN Tech Adventures