Archive for the ‘cloud’ Category

TL;DR T-Shirt sizes are frequently used to create the VM types and cost structure for private clouds, but if the sizing isn’t informed by data this can lead to stranded resources and inefficient capacity management. It’s the antitheses of dynamic capacity management where every VM is sized according to the resources it actually consumes, ensuring […]


Last night we celebrated the 10th anniversary of CloudCamp London by celebrating the 40th anniversary of the Hitch-Hikers Guide to The Galaxy (HHGTG). It was a lot of fun – probably the best CloudCamp ever. I can’t say that I was there from the beginning, as I sadly missed the first CloudCamp London due to […]


Amazon’s Chris Munns announced at the recent Serverless Conference NYC that AWS Lambda will soon support a feature called traffic shifting. This will allow a weight to be applied to Lambda function aliases to shift traffic between two versions of a function. The feature will enable the use of canary releases and blue/green deployment. Continue reading the full story at InfoQ.


TL;DR VMs on public cloud don’t provide the same level of control over sizing as on premises VMs, and this can have a number of impacts on how capacity is managed. Most importantly ‘T-shirt’ type sizing can provide sub optimal fit of workload to infrastructure, and the ability to over commit CPUs is very much […]


LessOps

09Aug17

JeffConf have posted the video from my talk there on LessOps (or should that be ‘LessOps), which is how I see operations working out in a world of ‘serverless’ cloud service: The full playlist is here, and I’ve also published the slides:


In a footnote to yesterday’s application intimacy post I said: in time there will be services for provisioning, monitoring and logging, and all that will remain of ‘infrastructure’ will be the config of those services; and since we might treat that config as code then ultimately the NoOps ‘just add code – we’ll take care […]


This is another post that’s a recycled email, one which started out with the title: ‘Our share of the cloud shared responsibility model (and the need for application intimacy)’ The original email came from a number of discussions in the run up to the DXC merger, and I must thank many of my CTO and […]


Originally posted internally 6 Jan 2016: I’d meant to post this before the Christmas break as a guide to things to tinker with over the break, but then I hit the point where pretty much everybody seemed to already be on leave, and it was clearly too late…. So Happy New Year, if you’re not already […]


A buffer overflow bug has caused a small number of requests to Cloudflare proxies to leak data from unrelated requests, including potentially sensitive data such as passwords and other secrets. The issue, which has been named ‘Cloudbleed’, was discovered and documented by Google Project Zero vulnerability researcher Tavis Ormandy. After applying fixes and attempting to clean […]


Amongst the flurry of announcements at re:invent 2016 was the launch of a developer preview for a new F1 instance type. The F1 comes with one to eight high end Xilinx Field Programmable Gate Arrays (FPGAs) to provide programmable hardware to complement the Intel E5 2686 v4 processors that come with up to 976 GiB […]