Page Index - unix1998/technical_notes GitHub Wiki

153 page(s) in this GitHub Wiki:

• Home
• "explain" show sql execution procedure
• a sample code and step by step upload to python PIP repo
• a typical Nginx service file and a Nginx route yaml for Use in Open SHift
• Airflow simple DAG example
• Amazon Machine Images (AMIs) and Azure Compute Gallery (formerly Shared Image Gallery):
• an approach to handle multi node elastic search
• analysis a company's future value
• ansible role and its directory structure
• Ansible serial feature usage and example
• ansible small example , one play book call 3 roles
• Argo CD and helm is not designed for S2I , but it can leverage S2i with certain setting
• ARgo CD and OpenShift , Kubernetes
• Argo CD auto roll back manually changes or changes which are not committed through GitHub
• Argo CD it self can not build Image , need ArgoCD updater or Jenkins, or other CI tool
• Argo CD updater work with ARgo CD in Open shift and Kubernetes
• ArgoCD need work with Jenkins or other cicd tool
• Automatic Instrumentation with Datadog APM
• AWS control Tower set up
• bash =, ‐ge,‐le or Numeric , string comparison
• Bash, $@ and $*
• Build mysql or postgresql use S2I
• BuildConfig and S2I in Open Shift
• closure.resolveStrategy = Closure.DELEGATE_FIRST descriptiom
• ClusterIP NodeIP NodePort , in Open shift and Kubernets
• comparison of Datadog, AppDynamics, and Dynatrace in terms of tracing, logging, and performance metrics.
• ConfigMap linked to POD , deployment
• configMap referenced by Multi deployment and POD
• container switch in Open Shift
• Cordon and Uncordon Nodes
• create Kubernetes dash board port forwarding
• create Open SHift new service accoutn use yaml file
• Curl call API , flag "‐D" vs "‐d"
• curl options description
• Data source example in Terraform
• Datadog trace function
• Deploy elastic search to infrastructure node in Open Shift
• DeploymentVSDeploymentConfig` in OPenShift
• DevOPS VS SRE
• eBPF , VS Solaris DTRACE
• ebpf for Appdynamic , Dynatrace and datadog
• eBPF Technology
• Elastic old beat agents description
• Elastic search cluster , quorum set up
• Elastic search cluster , use External load balancer or internal self managed
• Elastic search container VS no container
• Elastic Search multi hosts setting
• elastic search muti host config file : consistent and different
• Elasticsearch's Query DSL and Rest API
• [English symbols [ ( {](/unix1998/technical_notes/wiki/English-symbols-%5B-(-%7B--)
• ephemeral and permanent POD in Jenkins and Open Shift
• Example Helm Chart for Nginx
• FFDC log in websphere
• Four Golden Signals
• General steps to shutdown a Open shift clutser
• generators and the yield statement in Python
• GitLab CI CD Features
• google golab usage
• Groovy DSL in Jenkins
• hadoop 4 components
• HashiCorp Vault's free tier : how do we use it with an example
• helm , jenkins and argo CD example
• Helm cover deployment to external exposing example
• IBM J9 or Eclipse open J9 error file.
• information captured in trace
• instrumentation automatically setting of datadog Appdynamic and Dynatrace
• Java heap analysis
• java thread dump and ps ‐o ‐ef , figure out which thread consume the largest portion of cpu , mem etc
• Jenkins Kubernetes Plugin , how create new pod
• Jenkins Kubernetes Plugin Overview
• jenkins master outside of Open Shift , use Kubernetes plugin
• Jenkins Typical pipeline leverage Groovy closure
• jenkins use dynamic agent wit Kubernetes plugin or oc helm command line
• jvm hotspot hs_err_pid.log file
• Kind list in new OpenSHift
• Kubernetes and OpenShift, several key types of workload resources (deployments or applications)
• Kubernetes Dashborad creating
• Kubernetes deploy and description
• Kubernetes deploy nginx example
• Kubernetes ingress controller use nginx
• Kubernetes Open Shift built‐in roles
• Kubernetes plugin , additional description
• Kustomize and overlay in Kubernetes Open SHift
• ldap server Open shift setup by Chat GPT
• ldap server setup by Gemini
• Linux , Solaris scan Fiber channel storage , and get LUN ID
• Linux VS Solaris boot processes
• master‐config.yaml in Open Shift
• MAT , and Native memory of JAVA
• maven central library
• maven Jboss plugin example
• Most Common resource Name of AWS , azure can be used in Terrform TF file
• mvn common commands
• mvn repository setting in setting.xml and pom.xml
• nginx use volume , PVC and PV in Open shift
• oc new‐app VS oc apply several YAML files .
• OC use selector to handle applications
• on‐premise and SaaS offering of Datadog , Dynatrace , Appdynamic , splunk
• Open shift , automatically load balancer and fail‐over , Jenkins as a sample deployment
• Open shift and Kubernetes admin
• open shift backup etcc and velero
• Open shift built‐in Image registry
• Open shift deploy‐config.yaml with route ready : we need oc expose it
• Open shift OC use S2I and use my self 's docker build steps
• Open Shift PV and PVC
• Open SHift RBAC role exampel YAML file
• Open shift route and Ingress
• Open shift Route ingress and underlying cloud load balancer
• open shift service account
• OPen Shift template YAML file usage and example
• Open shift use ingress and route
• OPen shitf PV PVC to mount to multi‐replica deployment
• open telemetry trace setting , automation and manually change a bit code
• Openshift , CRI‐o , Crun and runc
• OpenSHift CNI , route and Ingress
• OpenSHift Kubernetes ; Taint and Tolerations
• Port forwarding VS route in Open shift
• postgresql deployment to OpehSHift cluster example
• ps v jvm_id to check memory usage
• PV and PVC in OpenSHift
• Python @staticmethod and normal method
• Python *args & **kwargs
• Python SPark example
• Redhat linux kernel download binary ready kernel steps
• ReplicaSet in Open shift
• Rest API test sites
• Selinux and Normal Linux
• Service Accounts in OpenShift
• ServiceNow risk analysis
• ServiceNow ticket type
• simulate database‐style features like transactions and commits by implementing a transaction mechanism within your InMemoryDatabase class
• SRE principles
• STatefulSet Typical applications list
• Steps to Forward Logs Using Fluentd in Open Shift
• storage class , PV and PVC in Open shift
• TCP 3‐way handshake VS ssl tls handshakes
• Technical Node of DevOps SRE
• Terraform module
• terraform provisioner local_exec , variable input example
• Terraform SRE build
• terraformer to generate terraform file from existing azure infrastructure
• terrform modules dry run use "local_exec" , has dev and qa module
• test speaker in windows 11 home laptop
• The procedure of GITOPS methodology : update a Nginx config file ,leverage Open Shift ConfigMap
• the work anecdote
• TICK observability Platform
• TLS Termination Types in OpenShift
• to remove a deployment and check associated components
• Typical Trace Information of an Observability platform
• Unix bash string comparison and numeric comparison
• Unix Globbing and noclobber
• Use ECR (aws container registry ) as S2I registry
• What is a Module in Terraform?