flannon’s gists

flannon / Create an auto scaling group

Last active September 18, 2015 20:48

Create Autoscaling groupwith the aws cli.

aws autoscaling create-auto-scaling-group --auto-scaling-group-name <name-asg> --launch-configuration-name uqbar-lc --max-size 1 --min-size 1 --availability-zones "us-east-1b" --vpc-zone-identifier <subnet-XXXXXXXX>

flannon / Create lauch configuration

Last active December 8, 2015 21:51

Create a launch configuration with a spot price of ¢.045

	Create launch configuration - with a spot price requirement single security group, no termination policy

	aws autoscaling create-launch-configuration --launch-configuration-name <name-lc> --image-id <ami-XXXXXXXX> --instance-type m3.medium --associate-public-ip-address --spot-price .045 --security-groups <security group name>

	Create launch configuration -- with a spot price requirement, multiple security groups and block device mappings for terminaiton policy

	aws autoscaling create-launch-configuration --launch-configuration-name test-lc --image-id <ami-xxxxxxxx> --instance-type t1.micro --associate-public-ip-address --spot-price .035 --security-groups {<sg-XXXXXXX>,<sg-XXXXXXX>} --block-device-mapping "[{\"DeviceName\": \"/dev/sda\",\"Ebs\": {\"DeleteOnTermination\": true, \"VolumeSize\": 8, \"VolumeType\": \"standard\"}}]"

flannon / scaleup.sh

Last active September 18, 2015 20:52

Scale up - time based scale up of autoscale group

aws autoscaling put-scheduled-update-group-action --scheduled-action-name <name-UpDaily> --auto-scaling-group-name <name-asg> --recurrence "45 16 * * *" --min-size 1 --max-size 1 --desired-capacity 1 --start-time 2015-08-16T20:44:00Z

flannon / scaledown.sh

Last active September 18, 2015 20:53

Scale down - time based scale down sets autoscaling group to 0 instances

aws autoscaling put-scheduled-update-group-action --scheduled-action-name <name-DownDaily> --auto-scaling-group-name <name-asg> --recurrence "10 22 * * *" --min-size 0 --max-size 0 --desired-capacity 0 --start-time 2015-08-16T20:12:00Z

flannon / clean_orphaned_snapshots.py

Created February 8, 2016 22:57 — forked from mjbommar/clean_orphaned_snapshots.py

Cleans orphaned snapshots from an EC2 account. Requires boto config.

	'''
	@author Bommarito Consulting, LLC
	@date 20120622

	Identify and, if requested, remove orphaned snapshots from an EC2 account.
	'''


	# Imports
	import boto

flannon / post-merge

Created February 16, 2016 17:59 — forked from sindresorhus/post-merge

git hook to run a command after `git pull` if a specified file was changed. In this example it's used to run `npm install` if package.json changed and `bower install` if `bower.json` changed. Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.

	#/usr/bin/env bash
	# MIT © Sindre Sorhus - sindresorhus.com

	# git hook to run a command after `git pull` if a specified file was changed
	# Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.

	changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"

	check_run() {
	echo "$changed_files" \| grep --quiet "$1" && eval "$2"

flannon / solr notes

Created March 20, 2016 10:20

	a solr rpm implementation
	https://github.com/mentalblock/solr-rpm

flannon / OS X commands

Last active June 9, 2016 15:52

	Enable screen sharing/VNC

	$ sudo /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/kickstart -activate -configure -access -on -clientopts -setvnclegacy -vnclegacy yes -clientopts -setvncpw -vncpw <password> -restart -agent -privs -all

	List all groups

	$ dscl . list /groups

	List group members

flannon / Disklabel

Last active March 1, 2017 12:53

	List block devices
	$ lsblk

	Read label
	$ sudo e2label <device name>

	write label
	$ sudo e2label <device name> <label>

	fstab entries to mount by label

flannon / httpd stuff

Last active October 24, 2017 14:23

	list compiled modules
	$ httpd -l

	Estimate memory usage per apache process
	$ ps -lyC httpd --sort:rss \| awk '{sum+=$8; ++n} END {print "Tot="sum"("n")";print "Avg="sum"/"n"="sum/n/1024"MB"}'

	The max value for MaxClients/MaxServers should be set to 80% of memory consumption
	(i.e. mem per httpd process divided by 80% system memory.)

	Or, for another version from https://gist.github.com/tbjers/4496984 with slight modifications, try this,

flannon flannon