savishy

List of recommended packages for Cygwin

Necessary

1. openssh
2. ping
3. wget
4. curl
5. vim and/or emacs
6. tar
7. zip

savishy

What is it?

• Enterprise Service Bus (ESB)
• Conceptually similar to the "bus" concept in computer architecture. But applied to Service Oriented Architecture. (SOA)
• Control routing of requests from a client to a service that can answer the request.
• Event Handling

savishy

Oracle DB Tips and Tricks

Connecting to a DB with sqlplus

You can connect both to a local or remote DB using the SQLPlus tool.

Syntax:

Run the SQLPlus command with following arguments.

savishy

Ad Hoc ansible Commands

1. http://docs.ansible.com/ansible/latest/playbooks_variables.html#magic-variables-and-how-to-access-information-about-other-hosts

Test WinRM Connectivity to a Windows Host

One way to do this is to execute a simple Windows Powershell command using Ad-Hoc Ansible.

❗ note that shell does not work for Windows. The equivalent is win_shell.

savishy

Jenkins + Docker

The exact list of plugins for enabling Docker commands within Jenkins jobs is somewhat unclear.

Looks like at least the Docker Build Step plugin is required to make this happen.

This does two things:

1. Helps us to run docker commands within Execute Shell steps
2. Adds the "Execute Docker Command" build step .

savishy

Vagrant and Hyper-V: Working with Virtual Network Interfaces

References

• Working with Vagrant and Hyper-V
• Vagrant Hyper-V Provider
• Creating an external virtual switch in hyper-v
• What to do if Hyper-V Manager is not found
• DockerNAT prevents other internal interfaces from working

savishy

Vagrant Tips and Tricks

Vagrant shell provisioner allows reading from Gists!

reference

Assuming

1. You are using Vagrant and Shell provisioner often (e.g when doing Windows provisioning you will end up using Powershell a lot)
2. You have started running into the problem of reusing your scripts

savishy

About kubeconfig and Sharing kubeconfigs

When you create a Google Cloud Container cluster with gcloud container clusters create it also generates a kubeconfig entry. See the output below:

Creating cluster petclinic...done.
Created [https://container.googleapis.com/v1/projects/gcloud-testing-vish/zones/asia-east1-a/clusters/petclinic].
kubeconfig entry generated for petclinic.
NAME       LOCATION      MASTER_VERSION  MASTER_IP       MACHINE_TYPE   NODE_VERSION  NUM_NODES  STATUS

savishy

R = Rotate

Press - X,Y,Z to isolate rotation axsis

S = Scale

Press - X,Y,Z to isolate scale axsis

Middle mouse button to rotate around selected object

savishy

References and Reading

1. Super-quick start
2. Another great Chef Gist that describes a Local Development Workflow

Jargon

• ohai == Facter from Puppet
• Chef Client and Chef Server: Behave similar to Puppet Master and Puppet Agent.
• Chef DK: A quick start toolbox for first-time use.