Weston Bassler geekbass

Elasticsearch Admin Endpoint Cheatsheet

/_cluster/health?pretty: For the cluster health indicator.

/_status?pretty : For all information about all the indices.

/_nodes?pretty : For all information about the nodes.

Rescue ec2 via Cloud-Init

If something takes over your instance and you lose ssh, here is a way that you can recover it via Cloud-init (As long as you are using Cloud-Init). Use boot_cmd to recover or undo anychanges that caused this.

Find the instance ID and stop it.

aws ec2 stop-instances --instance-ids i-instanceID --force

Create your file. Use boot_cmd as this will execute on boot every time. See https://cloudinit.readthedocs.io/en/latest/topics/examples.html?highlight=systemd#run-commands-on-first-boot for the details.

Base64 encode it.

Useful Kubectl Commands

kubectl run -i --tty --rm debug --image=curlimages/curl --restart=Never -- www.google.com -vvv

kubectl run -i --tty --rm debug --image=busybox --restart=Never -- sh

Testing Volume Mount from Configmap

My list of must have Plugins for PyCharm

	# Find Public IP
	data "http" "whatismyip" {
	url = "http://whatismyip.akamai.com/"
	}

	# Begin Variables
	variable "aws_ami" {
	description = "AMI to use"
	default = "ami-4bf3d731"
	}