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Show HN: Raspberry Pi3 cluster with Docker/Kubernetes

86 点作者 nergal大约 9 年前

10 条评论

luxpir大约 9 年前
Translation for those who care:<p>-------------------<p>This time round I got into carpentry for my project. Something that became both expensive and trickier than I had thought when I started. My carpentry knowledge is limited to (high-)school lessons, so take it easy on the results.<p>The project became more expensive than expected. Some 6000 SEK [~$740] including a whole bunch of tools (mill, jig saw, circular saw). Made do with &#x27;Biltema&#x27; tools [the IKEA of tools] and returned the first mill after 1 hour of use. The other stopped after around 2 hours so then I fixed that one myself (took apart the start-button and modified it a bit).<p>The project consists of:<p>- 10&#x2F;100 Mbps switch<p>- Nexus 7<p>- 10A 6 port USB charger<p>- 4 x Raspberry pi 3<p>- 4 x 8GB SD card<p>- TP cables + USB cables<p>- Oak<p>- Plexiglass<p>Anyway, you&#x27;d all probably rather see pictures than words.<p>- Nexus 7 with realtime data for all nodes.<p>- &#x27;Economically&#x27; bought 8GB, not class 10, but thinking of running a 2.5&quot; HDD for the controller node.<p>- Sleeved all the cables, then realised that they didn&#x27;t fit with the sleeving. Could only strip them and do again.<p>- First test with 2 x USB hubs that didn&#x27;t deliver enough current at start-up.<p>- Flip-up &quot;chassis&quot;<p>- My modified netdata page showing real-time data for all nodes, including the temperature.<p>- Running Docker with Kubernetes on the cluster.<p>-------------------<p>[Any errors&#x2F;omissions are my own]
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metakermit大约 9 年前
Looks like it could also act as a radiator :) Especially with the RPi 3 heating issues:<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=e6okZKRwnTQ" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=e6okZKRwnTQ</a>
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chx大约 9 年前
Check <a href="http:&#x2F;&#x2F;www.pidramble.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.pidramble.com&#x2F;</a> for a more compact RasPi cluster. Jeff&#x27;s uSD benchmarks made it to Hacker News front page previously.
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audleman大约 9 年前
It looks very cool; what does it do? All I&#x27;m seeing in the photos is a cluster of 4 PI&#x27;s that report their statistics to a dashboard.
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Matt3o12_大约 9 年前
I&#x27;ve long thought about a similar project to test my applications when scaling out and how well concurrency works.<p>One big advantage is that raspberry pies are also so you don&#x27;t need to send 100MBs to your servers to max out the CPUs (and thus don&#x27;t need such a quick connection and powerful machine to generate all those requests).
Already__Taken大约 9 年前
Might the HDD be attached to one Pi this way? It would be interesting if a ghetto SAN could be arrange. Do only the enterprise people get to HDD&#x27;s with ethernet interfaces directly?<p><a href="http:&#x2F;&#x2F;www.seagate.com&#x2F;files&#x2F;www-content&#x2F;product-content&#x2F;hdd-fam&#x2F;kinetic-hdd&#x2F;en-us&#x2F;docs&#x2F;kinetic-ds1835-1-1110us.pdf" rel="nofollow">http:&#x2F;&#x2F;www.seagate.com&#x2F;files&#x2F;www-content&#x2F;product-content&#x2F;hdd...</a>
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Negative1大约 9 年前
RPI&#x27;s have been shown not to scale from a power&#x2F;heat to $ ratio (I believe Mac Mini clusters are way more efficient), so this is not a practical project by any means.<p>Even so, very fun looking project. It says something when a geek like me is impressed at an electronics project for the (very nice) woodworking.
Already__Taken大约 9 年前
Might want to consider sealing the plexiglass in some fashion as the gentle air current under it will collect dust on the side you can&#x27;t so easily clean.
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rasz_pl大约 9 年前
nice woodworking project&#x2F;nightstand clock.<p>If you double the rpi number you will get close to used $300 laptop level of performance.
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Sam--------大约 9 年前
Very very cool. I love the enclosure!