Controlling Docker from a Golang-Webserver - docker

I am looking for a way to control my docker-containers on a server from a golang-webserver. So far i found "github.com/docker/docker/client" and "docker.io/go-docker". both do the same thing i guess, but neither of them have a decent documentation nor examples to work with. Does someone have any experience with those libs?

https://godoc.org/github.com/docker/docker/client docs looks good to me. For some more example use can look at my project https://github.com/loqutus/rws/blob/master/server/server.go

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Is there an AWS solution that is similiar to IMGix or ImageKit

I am looking for a solution to resize, optimize, and use webp format for images on my site. I am already using AWS and was wondering if I needed to use IMGix or ImageKit to accomplish this or if I could use AWS.
Thank you in advance for looking at my question!
I think you are looking for something like this: https://aws.amazon.com/blogs/architecture/fast-and-cost-effective-image-manipulation-with-serverless-image-handler/. Just be aware there is going to be a good amount of work maintaining the Lamdba set up as well.
Just an FYI, I do work at imgix. But I love creating projects with imgix as well. I write a lot some of them here: https://dev.to/daletom
So there is certainly a bias there :) But hooking up imgix to your S3, just uploading them through imgix, and using like a react sdk, just makes it so easy. Depending on your usage, there is a free tier with imgix as well.

How to implement Pivot control for iOS?

I just love the pivot control design in windows mobile. I would love to implement similar kind of design in my application, just like Skype app for iOS (PFA screenshot below). I did look up to check whether is there any libraries in github to do this. But I didn't find one. So please give me a head start on how can this be achieved. Thanks in advance.
I tried to use the UISegmentedControl and UIScrolllview together to get the look and feel of the Pivot control. But the solution I came up with was little clumsy and cranky and wasn't smooth at all.
But when I was browsing github again to find whether there is any existing solution for this I came across this library PageMenu. This is the closest solution I could find, using which you can get the look and feel of Pivot control. Take a look at the attached screenshot.
I had to do lot of look up to get this library, so I hope this may come in handy if someone who is looking for a similar kind of design. Hope this helps :)

iPad1, use the 30pins VGA cable

I'm working on a simple application for a vacation with friends. It's something like the Wheel of Fortune.
The problem is that we with too much people to look at the iPad1, so I was thinking to beam the application. I got the 30pins VGA connector that I use for keynote and Adobe Idea, so I think it's possible.
I don't find something on the internet, or I can't figure it out how to search this specific problem.
Thanks in advance.
I found a bit off source code that helps
http://mattgemmell.com/2010/06/01/ipad-vga-output/
:-)
There's also this: https://github.com/freespace/TVOutManager which I was able to get working.
(this is an improved fork of work by Rob Terrell).
I didn't realise that the lack of video mirroring by default is a problem was only with the iPad 1 (which I don't have to support) as detailed here: http://support.apple.com/kb/ht4108

How do I use C Library with Rails + Swig?

I've programmed 2 rails apps so far that have definitely gotten me pretty comfortable with ruby + rails. I can't say the same about C though. I don't even know what I'm looking at to be honest any time I look at C. It looks like macaroni.
I'm trying to build a spotify web app. The web API sucks, so I have to use this: https://developer.spotify.com/technologies/libspotify/
Documentation: https://developer.spotify.com/technologies/libspotify/docs/12.1.45/
Someone told me I can look at SWIG as a wrapper to communicate with rails.
The data I'm trying to get is 3 things: Number of subscribers, playlist thumbnail, number of tracks... given a playlist URL in the format of: http://open.spotify.com/user/{{username}}/playlist/{{playlist_id}}
To be honest, I have no idea where to even start. I can't find any swig tutorials online, and staring at this documentation isn't helping.
Could someone maybe give me a very brief 1,2,3 step procedure that one might go through to do something like this? I don't really expect any code.. but.. this is very roughly what I understand so far.. perhaps someone could help me fill this in..
save all C files you need to rails lib directory
compile files with ... ?
use swig somehow
:|
Any help would be super appreciated. I realize this is vague and 'subjective' but I don't even know how to ask this objectively. Just a quick 1-2-3-4-5 to get me started so I can do some googling would be fantastic.
Edit: I did find this, but this seems to be much obsolete: https://github.com/sarnesjo/greenstripes
Well, this is certainly not the answer but just thought to gather some related links here.
http://www.eqqon.com/index.php/Ruby_C_Extension_API_Documentation_(Ruby_1.8)
http://java.ociweb.com/mark/programming/Ruby_C_Extensions.pdf
http://people.apache.org/~rooneg/talks/ruby-extensions/ruby-extensions.html
Let us know about any update.
After some digging I have found this. I think this is the answer for my ruby libspotify wrapper: https://github.com/Burgestrand/Hallon

Web Capacity Analysis Tool (WCAT) Tutorial

I'm finding it very difficult to find any decent tutorials on how to get up and running with WCAT quickly. Does anyone have a link to a decent tutorial on it that they found useful when trying to get to grips with WCAT?
For me the best thing that I used to get going with WCAT was to get their "sample" running, which tied to a base IIS installation with a single file.
Once I got that done, i found that the help documentation was very easy to understand, it is just the initial setup that was tricky.
Otherwise, this blog posting is pretty straightforward as well.
Just another option that helped me getting into this:
Using the WCAT Fiddler Extension.
This extension automatically generates all the necessary files and also calls them for you.
If you want to understand what's going behind the scenes, a good starting point for me was to use Process Explorer to see which files the Fiddler extension generates and how it calls them.
Somehow the WCAT Fiddler Extension was not working on my side and does not support POST so I decided to create my own. I shared the source code on github just incase your interested.
Here's the link: https://github.com/francischie/FiddlerWCAT
I've also found this article which combines LogParser 2.2 with WCAT. You may find that interesting too.

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