Today marks the release of Visual Studio 2017, and with it the final release of the tools for dotnet core. This means as of today you can build, test, and deploy an application completely supported by microsoft. Not just the runtimes, but the tooling as well. The CLI for dotnet core has been finalized, and its awesome. The csproj system has been revitalized. New csproj's can be created, and are fully compatible with the old. Visual studio 2017 has finally released. This is probably the greatest version of visual studio ever created. Finally VS has gone from a slow, archaic editor, to a fast moving IDE. An IDE with a DevOps-First Cloud-First mentality. An IDE ready to tackle today's modern challenges.
Recently I wanted to make myself a short url host. Really, I made this not to make short urls, but to make memorable urls for myself.
I've been starting to use docker, more and more recently. As this technology has grown many of my coworkers are getting more, and more interested in docker.
I put together some materials and a youtube video which may help some of you getting started with docker. If you don't like watching videos, check out the
story.md file in the repo. That file has all the content covered. Honestly give me feedback if it helped or not. I might do more tutorials in the future for docker. Docker is such a new technology, and the surface area changes month to month.
tl;dr click here
When we talk about capturing metrics in applications. One server/service that constantly is in all conversations monitoring, is statsd. Incase you have never heard of it, statsd is a udp/tcp server that you send your in-code metrics to. These metrics get aggregated by statsd, and are forwarded to various backends. Some backends are services like librato or sumologic. Other times you are sending metrics to time series databases such as graphite or god forbid influxdb.
This boils down to in code you can say "log whenever this block of code is hit" or say "measure how long this function takes to execute". These stories come together to form pretty graphs, and rich alerts. All of this enabled by statsd.
tl;dr view this gist
So its 2016, and we are still making console apps/cli's. In fact I would say there has been a surge in popularity of these types of tools. I think we have come to the realization that buttons on forms are not automatable, and that the command line doesn't have to be scary.
I recently started writing an app in dotnet core, which is the new runtime for dotnet. In the past I have often used command line parser, but as of this writing it does not support core.
I was really lost trying to find an arguments parsing library when I realized the dotnet cli was open sourced.
After much struggle, failing to bingle. I started ripping through the Entity Framework, and dotnet cli's code hoping to find a gem. Thats when I stumbled across a diamond. You see many dotnet projects use Microsft.Extension.CommandLineUtils to do cli parsing.
So now that Windows server 2016 is generally avalible for the first time ever windows users can now use containers. Ok, so what exactly are containers? Well more or less they are virtual operating systems that share the same kernel as the host OS. In regular VM's the hardware is shared between machines, but containers go a step further and share the kernel of the OS. Why does this matter? Well because you are sharing an existing kernel that is already running, your startup times are instantanious. To put this in perspective, this is virtualization at the OS level.
On Linux, containers have been a thing for a long time. This technology is called LXC. Docker itself is a layer ontop of various container platforms embedded in operating systems.
dotnet CLI is currently in RC2, and while the train is fast approaching RTM, most tools are still catching up. dotnet seems to have a documented cli based install for every platform except the good ol windows. That being said getting a windows based install/build is possible.
For a while now I have been playing with rails, and rack webapps. If you are not familiar with these, they are webservers created in ruby. One of the features I ran into during my journey into ruby land is Turbolinks. Incase you are not familiar, Turbolinks is basically a simplified pjax, with a lot of flexibility. When you click on a link in a page with turbolinks, the link action is hijacked and the target page is loaded via ajax. The result of the ajax call (which is presumed to be html) will replace the document of the body tag. At the end of the day its a technology to load your server side pages via ajax.
So if you are like one of my co-wokers whom are newer to
.net land you probably thought
"hey it would be good just to update all my nuget packages".
Then you quickly ran into issues.