Top all-time · #3288
blog.dotcloud.com
Company blog · blog.dotcloud.comsystemswebprogramming
blog.dotcloud.com is the company blog at blog.dotcloud.com, writing about systems, web and programming. Since 2011, 23 different Hacker News readers have linked it 47 times, most often “PAAS under the hood, AUFS at dotCloud”. No feed was found, so read it on the site itself.
Too few sampled comments (7) to say how often HN recommends it.?
Why HN links it
HN readers link dotCloud's blog for technical posts on Linux containers, namespaces, cgroups and PaaS internals, and for company announcements such as product launches and the EC2 outage.
Summarised by Claude from a sample of 7 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Most-linked posts?
- PAAS under the hood, AUFS at dotCloud2 people · 2 mentions · first linked 2012-12-14
- DotCloud PaaS Joins CloudControl2 people · 2 mentions · first linked 2014-08-04
- PaaS under the hood: kernel namespaces2 people · 2 mentions · first linked 2013-01-11
- Working around the EC2 outage2 people · 2 mentions · first linked 2011-04-21
What Hacker News says?
Docker is based on LinuX Containers (LXC), which are much more lightweight than a full OS VM. Containers are basically namespaces for processes, networks so I would expect way lower overhead than a full fledged VM. More details here - http://stackoverflow.com/a/16048358/803923 http://blog.dotcloud.com/under-the-hood-linux-kernels-on-dot... It is a virtualization layer, but not nearly as heavyweight (and perhaps not…
Comment linking /under-the-hood-linux-kernels-on-dotcloud-part
on “Ask HN: How do you use Docker in production?”Submitted The new sandbox: open-source and self-hosted as a story · 200 points
HN discussionThat's correct: cgroups have no effect on permissions. They only enforce resource usage limits. Shameless plug: I work at dotCloud, and I wrote 4 blog posts explaining namespaces, cgroups, AUFS, GRSEC, and how they are relevant to "lightweight virtualization" and the particular case of PAAS. The articles have been grouped in a PDF that you can get here if you want a good technical read for your next plane/train/what…
Comment linking /paas-under-the-hood-ebook
on “Docker - the Linux container runtime”Submitted DotCloud releases support for Perl, aka Camel-as-a-Service as a story · 96 points
HN discussionSince docker uses cgroups and cgroups can limit CPU, Memory, I/O, i guess this blog post by the docker guys gives a good overview: http://blog.dotcloud.com/kernel-secrets-from-the-paas-garage...
Comment linking /kernel-secrets-from-the-paas-garage-part-24-c
on “Docker - Way better than a VM”Submitted DotCloud gets NodeJS support as a story · 72 points
HN discussionTo understand Docker [0] in a complete way you first have to understand a lot of other concepts. You need to understand what "linux containers" [1] are. To understand that you need to understand cgroups [2]. To understand cgroups you have to understand process groups/sessions [3] and namespace isolation [4], as well as how the kernel implements cgroups. [5] [6] You need to understand what chroot [7] is. (it just pre…
Comment linking /kernel-secrets-from-the-paas-garage-part-34-a
on “Your Docker image might be broken without you knowing it”Submitted Working around the EC2 outage as a story · 68 points
HN discussionThe worst thing for any service provider is to delay the initial confirmation that yes, something seems to be going wrong. > http://blog.dotcloud.com/working-around-the-ec2-outage "After one hour, Amazon's Health Dashboard was still pretending that everything was right." There really is no negative side for someone as large as Amazon to immediately put up a quick notice that "we are receiving complaints about x-y-z…
Comment linking /working-around-the-ec2-outage
on “Amazon’s problem isn’t the outage, it’s the communication”Submitted DotCloud open-sources its websocket proxy as a story · 65 points
HN discussionHere are the announcements on dotCloud's blog. http://blog.dotcloud.com/dotcloud-announces-native-support-f... http://blog.dotcloud.com/dotcloud-now-supports-mongodb-20 http://blog.dotcloud.com/now-scale-vertically-or-horizontall...
Comment linking /now-scale-vertically-or-horizontally-on-dotcl
on “DotCloud Adds Support For WebSockets, Vertical Scaling And More”Submitted Introducing the new dotCloud dashboard as a story · 57 points
HN discussionHm, I didn't realize that dotCloud was acquired after they switched to being Docker, Inc.: http://blog.dotcloud.com/dotcloud-paas-joins-cloudcontrol
Comment linking /dotcloud-paas-joins-cloudcontrol
on “Next dotCloud – improved platform and pricing”Submitted Deploy your Go apps on dotCloud as a story · 55 points
HN discussionSubmitted PyPy, Jython and CPython 3 on dotCloud as a story · 45 points
HN discussionSubmitted Bootstrapping the open-source Sandbox on top of Docker as a story · 40 points
HN discussionSubmitted Deploying Django on dotCloud - an insiders story as a story · 40 points
HN discussionSubmitted Large-scale HTTP and websocket routing with Hipache as a story · 36 points
HN discussionSubmitted DotCloud adds FUSE support and shared filesystems as a story · 36 points
HN discussionSubmitted Ben Golub joins dotCloud as CEO as a story · 28 points
HN discussionSubmitted How to Run your Minecraft server on dotCloud as a story · 25 points
HN discussionSubmitted Organizing a 24x7 bullet-proof on-call rotation with PagerDuty as a story · 22 points
HN discussionSubmitted High Availability: MySQL master/slave now on DotCloud as a story · 21 points
HN discussionSubmitted New Relic on DotCloud as a story · 18 points
HN discussionSubmitted HTTP + JSON for Redis: Now You Can Deploy Redweb on DotCloud in Under 30 Seconds as a story · 17 points
HN discussionSubmitted Running DotCloud on Windows as a story · 13 points
HN discussionSubmitted PaaS Under The Hood, Episode 6: How to Optimize the Memory Usage of Your Apps as a story · 11 points
HN discussionSubmitted Cloud deployment of PostGIS, GeoDjango, TileStream, and other geo apps made easy as a story · 11 points
HN discussionSubmitted DotCloud (YCS10) announces sweet new dashboard in beta as a story · 9 points
HN discussionSubmitted Thin web server (Event Machine Rack/Rails) available on DotCloud as a story · 8 points
HN discussion
