Wednesday, 8 March 2017

ASP .NET Core (CLR) on Pivotal Cloud Foundry

There are two ways to run .NET applications on Pivotal Cloud Foundry. In short it's as follows

  1. Windows 2012 R2 Stack (Windows 2016 coming soon)
  2. Linux Stack - ASP.NET Core CLR only

In the example below I am going to show how you would push a sample ASP.NET Core application using the default Linux stack. I am using run.pivotal.io or better knows as PWS (Pivotal Web Services) instance which only supports a Linux stack. In your own PCF installation an operator may have provided Windows support in which case a "cf stacks" is one way to find out as shown below

$ cf stacks
Getting stacks in org pivot-papicella / space development as papicella@pivotal.io...
OK

name            description
cflinuxfs2      Cloud Foundry Linux-based filesystem

windows2012R2   Microsoft Windows / .Net 64 bit

Steps

1. Clone a demo as shown below

$ git clone https://github.com/bingosummer/aspnet-core-helloworld.git
Cloning into 'aspnet-core-helloworld'...
remote: Counting objects: 206, done.
remote: Total 206 (delta 0), reused 0 (delta 0), pack-reused 206
Receiving objects: 100% (206/206), 43.40 KiB | 0 bytes/s, done.
Resolving deltas: 100% (78/78), done.

2. Change to the right directory as shown below

$ cd aspnet-core-helloworld

3. Edit manifest.yml to use the BETA buildpack as follows. You can list out the build packs using "cf buildpacks"

---
applications:
- name: sample-aspnetcore-helloworld
  random-route: true
  memory: 512M
  buildpack: dotnet_core_buildpack_beta

4. Push as shown below

pasapicella@pas-macbook:~/apps/dotnet/aspnet-core-helloworld$ cf push
Using manifest file /Users/pasapicella/apps/dotnet/aspnet-core-helloworld/manifest.yml

Updating app sample-aspnetcore-helloworld in org apples-pivotal-org / space development as papicella@pivotal.io...
OK

Uploading sample-aspnetcore-helloworld...
Uploading app files from: /Users/pasapicella/pivotal/apps/dotnet/aspnet-core-helloworld
Uploading 21.9K, 15 files
Done uploading
OK

Stopping app sample-aspnetcore-helloworld in org apples-pivotal-org / space development as papicella@pivotal.io...
OK

Starting app sample-aspnetcore-helloworld in org apples-pivotal-org / space development as papicella@pivotal.io...
Downloading dotnet_core_buildpack_beta...
Downloaded dotnet_core_buildpack_beta
Creating container
Successfully created container
Downloading build artifacts cache...
Downloading app package...
Downloaded app package (21.5K)
Downloaded build artifacts cache (157.7M)

...

-----> Saving to buildpack cache
    Copied 0 files from /tmp/app/libunwind to /tmp/cache
    Copied 0 files from /tmp/app/.dotnet to /tmp/cache
    Copied 0 files from /tmp/app/.nuget to /tmp/cache
    OK
ASP.NET Core buildpack is done creating the droplet
Uploading droplet, build artifacts cache...
Uploading build artifacts cache...
Uploading droplet...
Uploaded build artifacts cache (157.7M)
Uploaded droplet (157.7M)
Uploading complete
Destroying container
Successfully destroyed container

0 of 1 instances running, 1 starting
0 of 1 instances running, 1 starting
1 of 1 instances running

App started


OK

App sample-aspnetcore-helloworld was started using this command `dotnet run --project src/dotnetstarter --server.urls http://0.0.0.0:${PORT}`

Showing health and status for app sample-aspnetcore-helloworld in org apples-pivotal-org / space development as papicella@pivotal.io...
OK

requested state: started
instances: 1/1
usage: 512M x 1 instances
urls: sample-aspnetcore-helloworld-gruffier-jackpot.cfapps.io
last uploaded: Wed Mar 8 10:46:44 UTC 2017
stack: cflinuxfs2
buildpack: dotnet_core_buildpack_beta

  state     since                    cpu     memory          disk           details
#0   running   2017-03-08 09:48:29 PM   22.4%   36.7M of 512M   556.8M of 1G


Verify the application using the URL given at the end of the push







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