create .netcore coredump file in docker container

dotnetcore_create_coredump.sh

#! /bin/bash
# reference: https://docs.microsoft.com/en-us/dotnet/core/diagnostics/debug-linux-dumps

# enables verbose mode
set -x

# declare helper variables
DOTNET_VERSION=$(ls /usr/share/dotnet/shared/Microsoft.NETCore.App/)
DOTNET_DIR="/usr/share/dotnet/shared/Microsoft.NETCore.App/$DOTNET_VERSION"

# clean up
[ -e /tmp/coredump.tar.gz ] && rm /tmp/coredump.tar.gz
[ -e /tmp/coredump.1 ] && rm /tmp/coredump.1
[ -e /tmp/libcoreclr.so ] && rm /tmp/libcoreclr.so
[ -e /tmp/libmscordaccore.so ] && rm /tmp/libmscordaccore.so
[ -e /tmp/dotnet ]  && rm /tmp/dotnet

# create dotnet core minidump with heap
$DOTNET_DIR/createdump 1

# create compressed file from dump file and required .net core binaries
cp $DOTNET_DIR/libcoreclr.so /tmp/libcoreclr.so
cp $DOTNET_DIR/libmscordaccore.so /tmp/libmscordaccore.so
cp /usr/share/dotnet/dotnet /tmp/dotnet
tar -C /tmp -c -v -z -f /tmp/coredump.tar.gz coredump.1 libcoreclr.so libmscordaccore.so dotnet

# clean up
[ -e /tmp/coredump.1 ] && rm /tmp/coredump.1
[ -e /tmp/libcoreclr.so ] && rm /tmp/libcoreclr.so
[ -e /tmp/libmscordaccore.so ] && rm /tmp/libmscordaccore.so
[ -e /tmp/dotnet ]  && rm /tmp/dotnet

# disable verbose mode
set +x

echo "script is done, you can find tarbar file at '/tmp/coredump.tar.gz'"