🤹🏽 🏴‍☠️ 🦗 Essayer d'exécuter des applications .Net Core dans SAP Cloud Foundry et SAP HANA XSA 📩 🎾 👎🏻

SAP développe actuellement activement Cloud Foundry (CF) et l'a implémenté dans SAP Cloud Platform, en tant qu'élément central de l'infrastructure cloud. CF agit comme un PaaS et vous permet d'exécuter des applications dans un environnement SCP. Dans cet article, nous vous expliquerons comment préparer CF à la mise en production de votre projet (phase «Go Live»), ainsi que comment déployer des applications dans l'environnement Cloud Foundry SCP et HANA XSA. Nous examinerons des exemples et vous montrerons comment gérer intelligemment les ressources informatiques du serveur tout en fournissant un environnement contrôlé pour l'exécution des applications.

IDE , Python, Java, JavaScript, Go. CF (runtime environment) . SAP CF HANA Platform, HANA XSA (XS Advanced Runtime). HANA XSA CF SAP SCP.

SAP SCP Cloud Application Programming Model (CAP) . SAP CAP CF.

CAP , back-end Java JavaScript, SqlLite. SAP SCP HANA Cloud , CDS (Core Data Services), .

CF/XSA LINUX, Linux. Microsoft .NET Core , .NET HANA XSA.

.Net CF / XSA?

, buildpack, , , . CF/XSA, , .

buildpack .

buildpack , , . HANA XSA buildpack’, SAP, : nodejs (javascript), java. , CF, HANA XSA, : php, go, dotnet_core, ruby.

buildpack?

· ,

· , buildpack,

· , .

, HANA XSA , HANA XSA .

execution agent controller, XSA , cli . XSA/CF, help.sap.com (SAP HANA Developer Guide for XS Advanced Model), .

buildpack , , , shell script Linux, go.

buildpack Microsoft .Net Core Runtime 3.1 HANA XSA 2.0 SP4, :

1. .NET Core Runtime 3.1. c HANA XSA, Linux. .NET Core Runtime . dotnet Linux.

2. zip, gzip ( ), . dotnet .NET Core Runtime.

3. shell script, : compile, detect, release.

4. zip ( zip), , 2, , 3.

5. buildpack xs create-buildpack ( help.sap.com->SAP HANA Developer Guide for XS Advanced Model Create a PHP Buildpack for XS Advanced)

buildpack, , Cloud Foundry . HANA XSA, CF, .

buildpack compile, detect, release, .Net Core Runtime 3.1 HANA XSA 2.0 SP4.

· ompile HANA XSA (build) , appsettings.json, framework, assembly ..

   compile >>
#!/bin/bash
# bin/compile <build-dir> <cache-dir>

BUILD_DIR=$1
BIN_DIR=`dirname $0`
BUILD_PACK_DIR=`dirname ${BIN_DIR}`
echo "Extracting .NET runtime into..."
echo ${BUILD_DIR}
cd ${BUILD_DIR}
tar xzvf ${BIN_DIR}/../runtime/runtime.tgz
echo "Extracting .NET runtime Done."

, compile CF supply finalize, HANA XSA compile.

·Detect HANA XSA buildpack .

#!/bin/bash
# bin/detect <build-dir>
if [ -f $1/appsettings.json ];
    then exit 0
fi
exit 1

· Release HANA XSA , yaml, .

   detect >>

#!/bin/bash
# bin/detect <build-dir>
if [ -f $1/appsettings.json ];
    then exit 0
fi
exit 1

· Release HANA XSA , yaml, .

   release >>

#!/bin/bash
# bin/release

cat <<EOF
---
config_vars:
addons:
default_process_types:
  web: /bin/bash ./start.sh 

EOF

buildpack .Net Core Runtime 3.1. .

, zip, , , buildpack.

..
bin	bin\detect bin\compile bin\release	buildpack
runtime	runtime\runtime.tgz	.net core 3.1 runtime

HANA XSA ?

HANA XSA XSA, .

HANA XSA Multi-Host, HANA HANA XSA (. .).

Configuration multi-hôte HANA XSA — HANA XSA Multi-Host

HANA XSA Multi-Host HANA, HANA XSA.

Multi-Host XS_WORKER XS_STANDBY, Auto-Failover HANA XSA .

HANA XSA Multi-Host, .

HANA XSA ?

HANA XSA Multi-Host, , . . , ?

Linux, – Linux Control Groups (Cgroups). Cgroups, , Linux . , , . , - , , .

Linux Cgroups, Go Live, HANA XSA.

Linux Cgroups shell script, buildpack .Net Core Runtime 3.1.

   start.sh >>

#!/bin/bash


if [ -z "$CGNAME" ]
then
	echo "[ERR]Please check CGNAME to place cgroup name limits."
	exit 1
else
	echo "[OK] CGNAME is set to '$CGNAME'"
fi

if [ -z "$MemoryLimitInMB" ]
then
	echo "[ERR] Please check memory limit settings."
	exit 1
else
	echo "[OK] MemoryLimitInMB is set to '$MemoryLimitInMB'."
fi

if [[ ! $(sudo echo 0) ]]; then echo "[ERR] sudo rights for user '$USER' needed.";exit 1; else echo "[OK] sudo rights for user '$USER' exist"; fi

create_cgroup_for_space(){
	if [[ $(sudo mkdir /sys/fs/cgroup/memory/$CGNAME) ]]; then echo "[ERR] can not create cgroup with name '$CGNAME'."; exit 1; else echo "[OK] cgroup '$CGNAME' successfully created."; fi
}

if [[ ! $(sudo ls /sys/fs/cgroup/memory/$CGNAME 2>/dev/null) ]]
then 
	echo "[WRN] cgroup '$CGNAME' is not set."
	create_cgroup_for_space
else 
	echo "[OK] cgroup '$CGNAME' is set." 
fi

if [[ $(sudo sh -c "echo $MemoryLimitInMB > /sys/fs/cgroup/memory/$CGNAME/memory.limit_in_bytes") ]]
then
	echo "[ERR] Can not set memory limit for app."
	exit 1
else
	echo "[OK] Successfully set memory limit to '$MemoryLimitInMB'."
fi

ATTACH=`awk '/^__MS_DOT_NET_RUN__/ {print NR + 1; exit 0; }' $0`

tail -n+$ATTACH $0 > ./run.sh

_PID=`echo $$`

if [[ ! $(sudo sh -c "echo $_PID > /sys/fs/cgroup/memory/$CGNAME/tasks") ]]
then
	chmod +x ./run.sh && /bin/bash ./run.sh	
else
	echo "[ERR] Unable to start app"
	exit 1
fi

exit 0

__MS_DOT_NET_RUN__

#!/bin/bash

trap "exit" INT TERM ERR
trap "kill 0" EXIT

export ASPNETCORE_URLS="http://localhost:$VCAP_APP_PORT"
 
echo "ASPNETCORE_URLS: '$ASPNETCORE_URLS'";
 
# Getting runnable dll.
runtimeconfigs=($(ls *.runtimeconfig.json));
if [ ${#runtimeconfigs[@]} -gt 1 ] ;
then
    echo "Error! Found '${#runtimeconfigs[@]}' *.runtimeconfig.json files! Expecting only one. Files: '${runtimeconfigs[@]}'.'" 1>&2;
    exit 1;
fi;
 
if [[ ${#runtimeconfigs[@]} -eq 0 ]] ;
then
    echo "Error! Can't find *.runtimeconfig.json file!" 1>&2;
    exit 1;
fi;
 
exeFile=$(echo "${runtimeconfigs[0]//.runtimeconfig.json/}")
if [ -f $exeFile ]
then
    echo "starting '$exeFile'...";
    exec "./$exeFile" --urls $ASPNETCORE_URLS;
    exit;
fi
 
dllFile=$(echo "${runtimeconfigs[0]//.runtimeconfig.json/.dll}")
if [[ !(-e $dllFile) ]] ;
then
    echo "File '$dllFile' is not found." 1>&2;
    exit 1;
fi
 
exec ./dotnet $dllFile --urls $ASPNETCORE_URLS;

, HANA XSA , Linux HANA XSA. SAP (SAP Co-Innovation Lab). , .

- , SAP Labs CIS

Essayer d'exécuter des applications .Net Core dans SAP Cloud Foundry et SAP HANA XSA

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