Checkmk Werk 12049: mem: Fix missing memory service

ID: 12049 Title: mem: Fix missing memory service Component: Checks & agents Level: 1 Class: Bug fix Version: 2.1.0i1 In checkmk versions 2.0.0i1 to 2.0.0b6 the memory service could be missing for LCX container and some hosts with reduced memory information. The mem_linux check plugin is now discovered if the follong fields are available in the agent output: "Buffers", "Cached", "Dirty", "MemFree", "MemTotal", "SwapFree", "SwapTotal" and "Writeback".