SAP ahora está desarrollando activamente Cloud Foundry (CF) y lo ha implementado en SAP Cloud Platform, como un elemento central de la infraestructura de la nube. CF actúa como PaaS y le permite ejecutar aplicaciones en un entorno SCP. En este artículo, le diremos cómo preparar CF para el lanzamiento de su proyecto en producción (fase "Go Live"), así como también cómo implementar aplicaciones en el entorno Cloud Foundry SCP y HANA XSA. Veremos ejemplos y le mostraremos cómo administrar de manera inteligente los recursos informáticos del servidor mientras brindamos un entorno controlado para que se ejecuten las aplicaciones.
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 $1/appsettings.json ];
then exit 0
fi
exit 1
· Release HANA XSA , yaml, .
release >>
#!/bin/bash
# bin/release
cat <<EOF
---
config_vars:
addons:
default_process_types:
web: /bin/bash ./start.sh
EOF
buildpack .Net Core Runtime 3.1. .
, zip, , , buildpack.
.. |
|
|
bin |
bin\detect bin\compile bin\release |
buildpack |
runtime |
runtime\runtime.tgz |
.net core 3.1 runtime |
HANA XSA ?
HANA XSA XSA, .
HANA XSA Multi-Host, HANA HANA XSA (. .).
HANA XSA Multi-Host HANA, HANA XSA.
Multi-Host XS_WORKER XS_STANDBY, Auto-Failover HANA XSA .
HANA XSA Multi-Host, .
HANA XSA ?
HANA XSA Multi-Host, , . . , ?
Linux, – Linux Control Groups (Cgroups). Cgroups, , Linux . , , . , - , , .
Linux Cgroups, Go Live, HANA XSA.
Linux Cgroups shell script, buildpack .Net Core Runtime 3.1.
start.sh >>
#!/bin/bash
if [ -z "$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