Download Install DRS Doctor on CentOS 6

InstallandRunDRSDoctoronCentOS6.5
Pre-requisites:
Python2.7
Pyyaml
Pymomi
ThebiggesthurdletogetDRSDoctorinstalledonaCentOS6.5instanceisgettingthe
prerequisitesinstalled.TheyumpackagemanagerusesPython2.6,andit’sconfiguredtobe
thesystemdefaultused.ReplacingorupgradingtoPython2.7willbreakyum,soitneedstobe
installedside-by-side.ThisshouldhelpyougetPython2.7downloadedandinstalledsoDRS
cansuccessfullyrun.PythonisusedtoactuallyrunDRSDoctor,butPIPisusedtoinstallthe
PyyamlandPymomibinariesthatDRSDoctoralsorequires.So,we’llneedtoinstallbothPIP
andPython2.7.
InstalltheEPELRepository
FirstthingistoinstalltheExtraPackagesforEnterpriseLinux(EPEL)repository.Thisisa
repositorycontainsextrapackagesforEnterpriseLinux.You’regoingtoneedthistoinstallPIP.
Thegoodnewsisthiscaneasilybedoneusingyum.Simplyrun:
yuminstallepel-release
…done.
InstallSoftwareCollectionsrepository
Nextthingyou’llneedtoinstallistheSoftwareCollectionsrepository.Thisisyetanother
repositoryofpre-compiledpackages.You’llneedtotogetPython2.7.Run:
yuminstallcentos-release-scl
…done.
InstallPython2.7
Nowthatyouhavetheextrarepositoriesconfigured,youcanuseyumtoinstallPIPand
InstallPython2.7.Run:
yuminstallpython27
…done.
InstallPIP
NowinstallPIP.Run:
yuminstallpython-pip
…done.
UpgradePIP
AfterPIPisinstalled,youcanusePIPtoupgradeitself.Simplyrun:
pipinstall--upgradepip
…done.
Easypeezysofar!
Nowiswherethingsgetslightlytricky,andyouhavetodothemintheproperdirectories,orit
won’twork,sopayattentiontowhatyou’redoing.
Update/etc/ld.so.conf
YouneedtoappendthepathforthePython2.7librarylocationtothisfile.Ifyouusedthe
previousstepstoinstallPython2.7,theyumpackagemanagershouldhaveinstalledPython2.7
toopt/rh/python27/root/.IfyouinstalledPythonmanuallyorbuiltitfromsource,youprobably
don’tneedthisinstruction,andyouareonyourown.
Now,updatethefile.Simplyadd“/opt/rh/python27/root/usr/lib64”(noquotes)toanewline
attheendofthefile.It’sreallythatsimple.IuseVI,butyouarewelcometouseanytext
editoryouenjoyusing.Ifyoureallyenjoyusingatexteditor,takeamomenttore-evaluatethis
iswhatyoureallywanttobedoingwithyourlife.
Nowyouneedtoreloadthelibrarycache,andsearchlocations.Justrun:
/sbin/ldconfig
…done.
Ifyouhavedoneeverythingproperlytothispoint,youshouldbeabletorunPython2.7.A
simplecheckistocheckthecurrentversion.Justrun:
/opt/rh/python27/root/usr/bin/python–version
Inmysystem,itreturned2.7.8.Thisisgoodsincethatistheversioncurrentlystoredinthe
repositoryyouaddedearlier.
Nowforthelastfewsteps.
InstallPyyaml
Beforeyouconfinure,navigatetothe/opt/rh/python27/root/usr/bin/directory.Thisisreally
important.Ifyouarenotinthisfolder,PyyamlisnotgoingtoinstallintherightplaceandDRS
Doctorwillnotrun.Onceyounavigatetothisfolder,run:
./python-mpipinstallPyyaml
…done
Installpyvmomi
Again,confirmyouareinthe/opt/rh/python27/root/usr/bin/directory.Ifnot,thenyou
messedupthepreviousstep.Waytogo!Listenbetternexttime.
IfusingPython2.7.9,thelatestversionofpymoniwillworkjustfine.Ifusing<2.7.9,youmust
install5.5.0.2014.1.1.Toforcetheinstallof5.5.0.2014.1.1,runthefollowingcommand.
./python-mpipinstallpyvmomi==5.5.0.2014.1.1
IfyouarerunningPython>=2.7.9,justomitthe“==5.5.0.2014.1.1”partandPIPwillinstallthe
latestversion.
Atthispoint,youshouldhavealltheprerequisitesinstalledonyoursystemtorunDRSDoctor.
RunningDRSDoctor
DownloadthetarfromtheVMwareFlingssite.Onceit’sdownloaded,copytoafolderyou
wishtolaunchtheapplication.DRSDoctorcanalsobeusedtomonitormultipleclusters.If
youwishtouseDRSDoctortorunagainstmultipleclusters,youmustcopythecontentsinto
separatefoldersforeachclusteryouwishtomonitor.
Example:
/root/cluster1/DrsDoctor/Drm-Diagnostic-Tool/doctor
/root/cluster2/DrsDoctor/Drm-Diagnostic-Tool/doctor
UnpacktheTARFile
Tountarthefilerun:
Tarxvf<pathtotar>
Itshouldunpackthefilewiththeproperfolderstructure:
<currentpath>/DrsDoctor/Drm-Diagnostic-Tool/
Settheconfiguration
Theconfigurationfilecanbefoundat/DrsDoctor/Drm-Diagnostic-Tool/conf/testbed.conf.
Usingyourfavoritetexteditor,editthefollowingitems:
vcip=IPorhostnameoftheVCserver.IfusingSSLcertificateverification,youmustusethe
fqdn.
vc_usr=SSOuserwithanadministratorroleintheclusteryouwishtomonitor
cluster=theclusteryouwishtomonitor.Spacesareallowedbetweenthesinglequotes
ca_certs=(Optional)CApemfilelocation.IfusingSSLcertificateverification,youmustcopy
therootCAcertificatesfromtheSSOorPSCserver.IfSSLcertificateverificationisnotused,the
commentoutthisentireline.
RunDRSDoctor
YouareabletorunDRSDoctorfromanydirectoryyouwantbyusingthefollowingcommand:
/opt/rh/python27/root/usr/bin/python./doctor
It’sprettyimportantyoufirstrunthePythonfromthisfolderfirst,andthentheDRSDoctor
binary.Otherwise,youwillrunwiththesystemdefaultversion,anditwillrefusetorun.
Haveahappyday.