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Continue reading →: AWS DynamoDB Throughput Capacity
Calculating throughput capacity! Read capacity units 1 strong consistent read per second up to 4 KB item 2 eventually consistent reads per second up to 4 KB item Write capacity unit 1 write per second for an item up to 1 KB in size Example: 1000 writes per 10 seconds @ 512 bytes…
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Continue reading →: RHEL – Start dhclient on boot
I just spun up a RHEL instance and noticed my DHCP Client was not starting on boot. Simplest solution for me was to update my NICs interface file with “ONBOOT=yes” and ensure “BOOTPROTO=dhcp” was set.
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Continue reading →: DevOps Interview Questions
Are you interested in applying for a new job? Possibly a job in the DevOps field? Or even hiring for a DevOps related position? If so, read on…. The meaning of DevOps and the tooling associated with it differs depending on who you talk too or what company you work…
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Continue reading →: Heroku + Slack = ChatOps
Heroku is a great PAAS offering. It has a nice free tier that allows you to deploy an application publicly with little effort. Heroku also has nice integration with Slack. It reminds me of the VSTS Slack Bot I blogged about earlier. With Heroku\Slack you have the ability to deploy…
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Continue reading →: AWS Linux 2 – VirtualBox
So you want to run the AWS Linux 2 OS on your laptop for development purposes? Its no problem now! I followed the instructions (here) to get Linux 2 running with a VirtualBox VM. These are the high-level steps I took. Create a cloud-init configuration ISO Create my user-data and…
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Continue reading →: Dojo Learning – Thoughts!
So what is Dojo Learning? The concept originated at Target as an immersive learning approach to help drive agile adoption. For a great explanation, please read “The Target Dojo“. Below are some of my thoughts around the Dojo learning program. You are in the Dojo for 2 things. Learn and…
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Continue reading →: Minimum Viable Product – Lean Startup
So what Minimum Viable Product (MVP)? MVP is a core component of the Lean Startup methodology. During MVP, the team will follow a build-measure-learn feedback loop. Initially during the build phase, the team will produce a version of the product with the least effort that allows for validated learning. After the…
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Continue reading →: Git – Refusing to merge unrelated histories
I ran into the following Git errors today when adding a new project to an existing Git repo. $ git pull fatal: refusing to merge unrelated histories The initial steps I took to add my project the existing repo were the following. git init git add . git commit –…
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Continue reading →: Docker for Java Developers Tutorial
Docker for Java Developers Tutorial – A must for anyone learning Docker!! https://github.com/docker/labs/blob/master/developer-tools/java/readme.adoc#docker-for-java-developers Cheers
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Continue reading →: Kanban and Blocked Work
Whats the best way to handle blocked work in a Kanban system? Do you increase the WIP limit, thus freeing up time for team members to work on something else? Do you keep the WIP limit as-is, and raise awareness by having people sit idle while the root cause of…
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DevOps Unleashed 