mobyware/dotnet-msa

Main repository with documentation and support files.

dotnet-msa

Main repository with documentation and support files.

This content is brought to you by http://developers.redhat.com - Register today!

Some useful acronyms:

• Red Hat Enterprise Linux: RHEL
• Container Development Kit: CDK
• Virtual Machine: VM

Use with CDK

This demo was developed using the Red Hat Container Development Kit (CDK) on a Window 10 PC.
To get a no-cost copy of the CDK, go to http://developers.redhat.com/products/cdk/overview/

Start your VM and SSH into it

1. Navigate to the path containing your Vagrantfile, e.g. C:\DevelopmentSuite\cdk\components\rhel\rhel-ose
2. vagrant up
3. vagrant ssh

Install .NET on your RHEL VM

Follow the instructions at https://access.redhat.com/documentation/en/net-core/1.1/paged/getting-started-guide/chapter-1-install-net-core-11-on-red-hat-enterprise-linux

Clone this repository into your VM

git clone https://github.com/redhat-dotnet-msa/dotnet-msa.git

Move into the directory

cd /dotnet_msa

Restore and run the application and make sure it runs in RHEL

dotnet restore

dotnet run

On your host (Windows) machine, point your browser to http://10.1.2.2:5000
(Note: 10.1.2.2 is the IP address assigned to the RHEL VM by Vagrant. This can be changed by altering the contents of the file "Vagrantfile").

Running in docker

Now that we know it runs, we need to publish a Release version to be used in docker.

Note that we do not want to use the combination of dotnet restore and dotnet run in our Dockerfile. Rather, we want the bits in the docker image to match our compiled project exactly, with no chance of dotnet restore pulling down different bits. Hence, we publish the solution and then copy that into our docker image.

Publish the solution:

dotnet publish -c Release -r rhel.7.2-x64

Then build the docker image

docker build -t dotnethello .

docker images

Test the docker image

docker run -d -p 5000:5000 --name dotnethello dotnethello

docker stop dotnethello

docker rm dotnethello

Using OpenShift/kubernetes

oc login
user: openshift-dev
password: devel

Create the new project

oc new-project mydotnet

Run script to create new service

./create_green_1.sh1

Expose the service (i.e. give it a URI)

oc expose service dotnethello

On the host machine, log in to OpenShift at https://10.1.2.2:8443
user: openshift-dev
password: devel

You can view the service running.

Blue/Green Release

./create_blue_2.sh

Canary

First create the non-canary service deployment

canary_create_1.sh

Then create the canary service deployment

vi Startup.cs

change the "Hello World" line

canary_create_2.sh

After that use the OpenShift console to "Up" and "Down" to get the mix right