Unix1998
later add
博文
(2024-05-09 17:30:27)
InOpenShift,loadbalancers,Ingresscontrollers,andNodePortareallcomponentsrelatedtomanaginganddirectingnetworktrafficwithinaKubernetescluster.1.**LoadBalancers**:Loadbalancersareresponsiblefordistributingincomingnetworktrafficacrossmultiplebackendservers,ensuringhighavailabilityandreliabilityofapplications.InOpenShift,loadbalancerscanbeusedtodistributetraffictovariouspods(instancesofapplications)run...[阅读全文]
(2024-05-09 15:25:38)
hefiledefinesvariousaspectsofyourapplicationdeployment,including: Containerimagetouse Numberofreplicas(pods)torun ResourcerequestsandlimitsforCPUandmemory Environmentvariablesforyourapplication Portmappingsforcontainerizedapplications Volumemountsforpersistentstorage Networkconfigurations(optional) Securityconfigurations(optional) BenefitsofUsingManifestFiles: Declarative:Theyspecifythe...[阅读全文]
(2024-05-09 12:00:21)
Here'showwecankeepandbackupyourjobsandconfigurationdatabeforeupgradingJenkinsDockerinstance:1.BackupJenkinsConfigurationDirectory: IdentifytheVolume:First,locatethevolumethatstoresJenkinsconfigurationdata.Bydefault,it'softennamedjenkins_homeinDockerdeployments.Youmighthavemountedthisvolumetoaspecificdirectoryonyourhostmachineduringinitialsetup. BackuptheDirectory:Useacommandlikedockercp<...[阅读全文]
(2024-05-09 11:16:07)
Inmostcases,theclusterIPandnodeIPaddressesofaKubernetesorOpenShiftclusterareinternalandnotdirectlyaccessiblefromoutsidethecluster'snetwork.TheseinternalIPsaretypicallyassignedfromprivateIPaddressrangesdefinedbyRFC1918(e.g.,10.0.0.0/8,172.16.0.0/12,or192.168.0.0/16)andareusedforcommunicationbetweenthenodesandcomponentswithinthecluster.Here'sabreakdownoftheseterms:1.**ClusterIP**:Thisisanint...[阅读全文]
(2024-05-03 16:08:15)
thefourmostcommonlyusedHTTPmethods(alsoreferredtoasverbs)are: GET:Usedtoretrievedatafromtheserver.Itshouldonlyretrievedataandshouldhavenoothereffectontheserver. POST:Usedtosenddatatotheservertocreateanewresource.Itcanalsobeusedtosubmitformdatatotheserver. PUT:Usedtoupdateanexistingresourceontheserver.Theentireresourceisreplacedwiththenewrepresentationprovidedintherequest. PATCH:Usedtoupdate...[阅读全文]
(2024-04-29 16:29:02)
Here'sageneraloverviewofthestepsinvolved: InstallPostgreSQLorMySQL:Dependingonyourpreferenceandrequirements,youcanchooseeitherPostgreSQLorMySQLasthebackenddatabaseforAirflow.Installthechosendatabasesystemfollowingitsinstallationinstructions. CreateaDatabase:AfterinstallingPostgreSQLorMySQL,createanewdatabaseforAirflowtouse.Youcandothisusingtherespectivedatabasemanagementtoolsorcommand-linei...[阅读全文]
(2024-04-29 16:27:10)
fromairflowimportDAG
fromairflow.operators.ssh_operatorimportSSHOperator
fromdatetimeimportdatetimedefault_args={
'owner':'airflow',
'depends_on_past':False,
'start_date':datetime(2024,4,29),
'email_on_failure':False,
'email_on_retry':False,
'retries':1
}dag=DAG('ssh_example',default_args=default_ar...[阅读全文]
fromairflow.operators.ssh_operatorimportSSHOperator
fromdatetimeimportdatetimedefault_args={
'owner':'airflow',
'depends_on_past':False,
'start_date':datetime(2024,4,29),
'email_on_failure':False,
'email_on_retry':False,
'retries':1
}dag=DAG('ssh_example',default_args=default_ar...[阅读全文]
(2024-04-29 16:25:17)
BashOperator:ThisoperatorallowsyoutoexecuteabashcommandorscriptasataskwithinyourDAG. PythonOperator:ThisoperatorenablesyoutorunarbitraryPythonfunctionsastaskswithinyourDAG. Besidesthesetwo,Airflowprovidesawiderangeofoperatorstosuitvariousneeds.Someoftheothercommonlyusedoperatorsinclude: BranchPythonOperator:ThisoperatorallowsyoutoexecutedifferenttasksinyourDAGbasedontheresultofaPythonfunction...[阅读全文]
(2024-04-28 16:54:08)
1.Classmethods(using@classmethoddecorator): Purpose:Classmethodsoperateontheclassitselfratherthanspecificinstances.Theyareoftenusedfor: Factorymethods:Creatingobjectswithdifferentconfigurationsbasedonprovidedarguments. Utilityfunctions:Performingactionsrelatedtotheclassasawhole,suchasvalidationordatamanipulation. Calling:Youcallclassmethodsusingtheclassnamefollowedbyadotandthemethodname(e.g.,...[阅读全文]
(2024-04-26 14:13:12)
IAM(IdentityandAccessManagement)typicallyencompassestwomaincomponents:IdentityManagementandAccessManagement.1.**IdentityManagement(IDM)**:
-**UserProvisioningandDe-provisioning**:Managingthelifecycleofuseraccounts,includingcreating,modifying,andremovingthem.
-**Authentication**:Verifyingtheidentityofusersattemptingtoaccessresources,oftenthroughpasswords,biometrics,ormulti-factorauthenticat...[阅读全文]
-**UserProvisioningandDe-provisioning**:Managingthelifecycleofuseraccounts,includingcreating,modifying,andremovingthem.
-**Authentication**:Verifyingtheidentityofusersattemptingtoaccessresources,oftenthroughpasswords,biometrics,ormulti-factorauthenticat...[阅读全文]
