Can't generate .Net Core app heapdump on Linux Diego Cell prior to TAS 2.11.2

Products

• VMware Tanzu Application Service for VMs

Issue/Introduction

For .NET Core apps deployed on Linux OS, there are two approaches for generating heapdump: 
 

• Integrate a Steeltoe framework and use the /heapdump management endpoint
• Use the dotnet-dump tool. In this case, dotnet SDK and dotnet-dump utility have to be installed in Diego cell or container to capture heapdump with `dotnet-dump collect -p PID -o DUMP_FILE`. In addition, source-based deployment is not supported by `dotnet-dump`. 

The above approaches do not work on TAS (prior to v2.11.2) Linus Diego Cell at this point because they both require CAP_SYS_PTRACE capacity on the OS which is disabled by the container hardening rules. 

The problem has been resolved in TAS versions 2.11.2 and above; heapdump is now supported on TAS Linux Diego Cell.  

Environment

OS: Linux