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EXADATA Commands & (ADDING DISK & DELETING DISK)

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 IBSWITCH INFO: ------------------------- ibhosts ibswitches LIST DISKS VIA KFOD: ------------------------------------ kfod disks=all dscvgroup=true | grep -i abc3pceladm03 |grep -i datac1 kfod disks=all dscvgroup=true | grep -i abc3pceladm03  List all Disks via CELLCLI: ----------------------------------- cellcli -e list griddisk cellcli -e list griddisk attributes name,asmmodestatus list griddisk attributes name where asmdeactivationoutcome!='Yes' cellcli -e list griddisk attributes name,asmmodestatus,asmdeactivationoutcome cellcli -e list griddisk attributes name,asmmodestatus [root@abc3pceladm03 log]# cellcli -e LIST GRIDDISK ATTRIBUTES name,asmDiskGroupName,cachingpolicy,size,offset          DATA1_CD_00_abc3PCELADM03     DATA1          default         6.1015625T           ...
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POWERSHELL

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 get-help about_operator    get-help where-object    get-service | where-object {$_.status -eq "running"}    get-service | where-object {$_.name -eq "winrm"}   get-eventlog -logname application -Newest 50 | where-object {$_.EntryType -eq "error"} get-hotfix | where-object {$_.Description -eq "update"} Not equal:  get-hotfix | where-object {$_.Description -ne "update"}    get-help about_comparison_operators   Greater than: get-process | where-object {$_.Handles -gt "1500"} Less than: get-process | where-object {$_.Handles -lt "100"} greater than date:  get-hotfix | where-object {$_.InstalledOn -gt "01/01/2020"}    get-hotfix | where-object {$_.InstalledOn -gt "01/01/2019"}    get-hotfix | where-object {$_.InstalledOn -gt "01-01-2019"}    Like:    get-service | where-object {$_.displayname -like "Application*"}    get-process | where-object {$_.ProcessName -like "*host*...
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Kubernetes Installation( kubeadm =Non Production)

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Kubernetes installation(Kubeadm for non production) AWS (t2.micro) pricing details: low-cost-burstable-ec2-instances https://aws.amazon.com/blogs/aws/low-cost-burstable-ec2-instances/ Ensure you have more than one linux with following flavors Ensure following ports are open Install docker runtime on master & all nodes by following here Install kubeadm components on master & all nodes by following here 5. Create the kubernetes cluster Login into master, become a root user (sudo -i) execute kubeadm init root@ip-172-31-7-224:~# kubeadm init [init] Using Kubernetes version: v1.13.3 [preflight] Running pre-flight checks [preflight] Pulling images required for setting up a Kubernetes cluster [preflight] This might take a minute or two, depending on the speed of your internet connection   To start using your cluster, you need to run the following as a regular user:   mkdir -p $HOME/.kube   sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config ...
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How to run Jenkins on Docker container | How to create Jenkins Volumes on Docker

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1. How to start Jenkins on Docker Container  2. Start and Stop Jenkins Container  3. How to set Jenkins home on Docker Volume and Host Machine How to remove died container: ubuntu@ip-172-31-39-216:~$ docker ps -a CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                       PORTS               NAMES efdab4e0a237        jenkins             "/bin/tini -- /usr/l…"   5 minutes ago  ...
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Ansible questions

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1. what is ansible?  => Ansible is a IT tool which automates the entire infrastructure.It help in configuration management,deployment ,can handle the repeated tasks,supports multi-tier applications   2. what is difference between ansible and chef? => Ansible is agentle ss,chef has a agent.Ansible deployment method is push and chef method is pull.Ansible setup is easy,chef setup is complex.Ansible deploy over ssh and chef through client server   3. i want to create users in my machine which is the most faster tool i.e ansible or chef or puppet?  => Ansible is the faster tool    4. what is loop in ansible ? =>  loop module is to handle the multiple tasks like installing multiple packages.Dont need to write the different tasks    5. how to read the variables in playbooks ?  => 6. how to expose passwords in playbooks?  => I think through ansible-vault view inventory-name    7....
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Ansible Configuration:

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 Ansible Configuration: note:login to root(sudo -i) =>login to master node(ACS(ansible control server)): =>update PasswordAuthentication to YES anbd then save the file: ------------------------------------------------------------ ------------------------------------------------------ root@ip-172-31-45-194:/etc/ssh# vi /etc/ssh/sshd_config =>update PasswordAuthentication to YES and then save the file: ------------------------------------------------------------ # Change to no to disable tunnelled clear text passwords PasswordAuthentication yes =>restart the servces(SSHD): ------------------------- root@ip-172-31-45-194:/etc/ssh# service sshd restart root@ip-172-31-45-194:/etc/ssh# service sshd status =>add user (username you can use anything for my practice im using "ansible": ----------------------------------------------------------------------------- root@ip-172-31-45-194:~# adduser ansible Adding user `ansible' ... Adding new group `ansible' (1001...
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aws_ecs_repository(Amazon Elastic Container Service )

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What is Amazon Elastic Container Service? => Amazon Elastic Container Service (Amazon ECS) is a highly scalable, fast, container management service that makes it easy to run, stop, and manage Docker containers on a cluster. =>You can host your cluster on a serverless infrastructure that is managed by Amazon ECS by launching your services or tasks using the Fargate launch type. ubuntu@ip-172-31-35-89:~$ docker pull python Using default tag: latest latest: Pulling from library/python bc9ab73e5b14: Pull complete 193a6306c92a: Pull complete e5c3f8c317dc: Pull complete a587a86c9dcb: Pull complete 72744d0a318b: Pull complete 3493e487c18d: Pull complete a89e0510fd87: Pull complete 2100d277cd6f: Pull complete b61a0d6fb492: Pull complete Digest: sha256:a837aefef8f2553789bc70436621160af4da65d95b0fb02d5032557f887d0ca5 Status: Downloaded new...
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