switch to EL8 image and fix pipeline

.github/workflows/nuget.yml

@@ -25,5 +25,5 @@ jobs:
             -e PUBLISH_PACKAGE_PASSWORD=${{ secrets.AZURE_ARTIFACTS_PASSWORD }} \
             -v "$(pwd):/hpcpack-linux-agent" \
             -w "/hpcpack-linux-agent/nodemanager" \
-            ghcr.io/phusion/holy-build-box/hbb-64 \
-            bash build_and_get_artifact.sh
+            phusion/holy-build-box:latest \
+            bash build_and_get_artifact.sh

nodemanager/README.md

@@ -4,7 +4,7 @@
 We offer an script to help build artifacts. You can build and get artifacts under `build` by running:
 
 ```bash
-docker run -t -i --rm   -v `pwd`/../:/hpcpack-linux-agent   ghcr.io/phusion/holy-build-box/hbb-64 bash /hpcpack-linux-agent/nodemanager/build_and_get_artifact.sh
+docker run -t -i --rm   -v `pwd`/../:/hpcpack-linux-agent   phusion/holy-build-box:latest bash /hpcpack-linux-agent/nodemanager/build_and_get_artifact.sh
 ```
 
 ## Conding Convention

nodemanager/build_and_get_artifact.sh

@@ -13,7 +13,9 @@ export SHLIB_CXXFLAGS="$SHLIB_CXXFLAGS -O0"
 set -x
 
 rpm --import "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF"
-yum-config-manager --add-repo http://download.mono-project.com/repo/centos/
+yum update -y
+yum install yum-utils -y
+yum-config-manager --add-repo http://download.mono-project.com/repo/centos8/
 yum update -y
 yum install perl-IPC-Cmd kernel-devel mono-complete -y
 curl -o /usr/local/bin/nuget.exe https://dist.nuget.org/win-x86-commandline/latest/nuget.exe