Short thoughts that don't make it to my blog...

22nd September 2014

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Monitor Eucalyptus JVMs with Zabbix

Monitor Eucalyptus JVMs with Zabbix

Originally posted on A sysadmin born in the cloud:

Zabbix is a rich monitoring system, which support SNMP, JMX, IPMI and uses its own agents for more functionality.
The great advantage of Zabbix is that it is self-sufficient : all the tools you need are in the packages and got connected to each others, whereas on Nagios you have to add tens of plugins.

Zabbix JMX monitoring is pretty simple :…

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28th August 2014

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Using Eucalyptus 4.0.1 CloudFormation to Deploy a CoreOS (Docker) Cluster

In a previous blog, I discussed how cloud-init can be used to customize a CoreOS image deployed as an instance on Eucalyptus - which happens to work in the same fashion on AWS.  

Using Eucalyptus 4.0.1 CloudFormation to Deploy a CoreOS (Docker) Cluster

In a previous blog, I discussed how cloud-init can be used to customize a CoreOS image deployed as an instance on Eucalyptus - which happens to work in the same fashion on AWS.  

Tagged: autoscalingawscloud computingcloudformationcomputecoreoscoreos clustercoreos etcdcoreos fleetctldockereuca2oolseucalyptus 4.0

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21st July 2014

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Setting Up 3-Factor Authentication (Keypair, Password, Google Authenticator) for Eucalyptus Cloud Instances

Setting Up 3-Factor Authentication (Keypair, Password, Google Authenticator) for Eucalyptus Cloud Instances

Recently, I was logging into my AWS account, where I have multi-factor authentication (MFA) enabled, using the Google Authenticator application on my smart phone.  This inspired me to research how to enable MFA for any Linux distribution.  I ran across the following blog entries:

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Tagged: cloud computingcloud-initeucalyptus 4.0google authenticatorthree-factor authenticationubuntu trusty

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14th July 2014

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How IBM is using big data to fix Beijing’s pollution crisis

Interesting to see IBM working with the Chinese Government on this front.

How IBM is using big data to fix Beijing’s pollution crisis

Interesting to see IBM working with the Chinese Government on this front.

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9th July 2014

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Eucalyptus 4.0 Load Balancer Statistics Web UI for the Cloud Administrator

Eucalyptus 4.0 Load Balancer Statistics Web UI for the Cloud Administrator

Background

From the cloud user’s perspective, the Eucalyptus Load Balancer is a “black box“.  The only interaction cloud user’s have with the Eucalyptus Load Balancer is through the eulb-* commands in euca2ools or the AWS Elastic Load Balancing API tools.   In Eucalyptus 3.4 and greater, the cloud administrator (any user under the ‘eucalyptus’ account)has the ability to access the instance that…

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Tagged: cloud computingelbeucalyptus 4.0eucalyptus load balancereulbhaproxyload balancer statistics page

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7th July 2014

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Customizing Eucalyptus Load Balancer for Eucalyptus 4.0

Customizing Eucalyptus Load Balancer for Eucalyptus 4.0

Background

For the Elastic Load Balancing service, Eucalyptus utilizes an HAProxy instance.  The load balancer image contains the following version of haproxy (as of Eucalyptus 4.0.0):

# /usr/sbin/haproxy -vv HA-Proxy version 1.5-dev21-6b07bf7 +2013/12/17 Copyright 2000-2013 Willy Tarreau Build options : TARGET = linux2628 CPU = generic CC = gcc CFLAGS = -O2 -g -fno-strict-aliasing OPTIONS =…

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Tagged: cloud administratorcloud computingeucalyptus 4.0eucalyptus load balancer imagehaproxyhaproxy load balancer configuration

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16th June 2014

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Growing and Securing Instance Root Filesystems With Overlayroot on Eucalyptus

Growing and Securing Instance Root Filesystems With Overlayroot on Eucalyptus

Background

I frequently check out Dustin Kirkland’s blog to get ideas about how to secure instances running on various cloud infrastructures.  Recently, I stumbled across one of his blog entries, where he discussed a package called ‘overlayroot‘, which is part of the cloud-initramfs-tools package for Ubuntu.  The really interesting feature I liked about this package is the ability to encrypt –…

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Tagged: cloud computingdmcryptencrypted root filesystemeucalyptus 4.0luksoverlayfsoverlayrootubuntu cloud images

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13th June 2014

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CoreOS CloudInit Config for Docker Storage Management

CoreOS CloudInit Config for Docker Storage Management

CoreOS is a Linux distribution that allows easy deployment of Docker environments.  With CoreOS, users have the ability to deploy clustered Docker environments,  or deploy zero downtime applications.  Recently, I have blogged about how to deploy and use Docker on Eucalyptus cloud environments. This blog will focus on how to leverage cloud-init configuration with a CoreOS EMIto manage instance…

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Tagged: aws compatibilitycloud computingcloudinitcoreosdockerec2eucalyptus 4.0instance store-backed HVMs3

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28th April 2014

Link reblogged from Betashop with 231 notes

It’s a fucking startup. Why are you here? -- We're here to Build. →

betashop:

It has now been 150 days since Fab completed its 2013 restructuring which saw us cut our operating expenses by two-thirds and go from more than 750 employees to around 300 today.

Since then, armed with tens of millions of dollars, a great brand, loyal customers, a passion for design, an…

Tagged: startup

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7th April 2014

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Making FileVault Use a Disk Password

Making FileVault Use a Disk Password

hspencer77:

Great use of FileVault on Mac OS X.

Originally posted on /dev/zero:

To unlock a disk that is encrypted with OS X’s FileVault feature one needs to type in the password that belongs to any user on the machine who is allowed to unlock the disk. The system then boots and helpfully logs you in as that user. In general that is probably a convenient little feature, but for me it just makes…

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