Deploy .NET Core project by creating docker image into Kubernetes

 

Deploy .NET application in the Kubernetes:

 

Step1: Create a .net project

dotnet new webapi -n k8webapi

Step2: Build the project using the below command

dotnet build

Step-3: Create publish file in the release folder

dotnet build -c release

Step-4: Now run the program

dotnet run

Step-5: The actual project structure

project directory structure:

TESTAPI

            K8webapi>>Bin>>Debug

K8webapi>>Bin>> Release

Step-6: Create a docker image using the below command             

create a docker image. To create a docker image, first need to create docker file

now create a docker images using the docker file. You can keep filename: dockerfile

 

FROM mcr.microsoft.com/dotnet/aspnet:7.0 AS runtime

WORKDIR /app

COPY k8webapi/bin/release/net7.0/ ./

ENTRYPOINT ["dotnet", "k8webapi.dll"]

Step-6: Create docker images using the

docker build -t k8webapi-image -f "e:\Learning\Technology\KubernetesUI Setup\testapi\k8webapi\dockerfile" .

Step-7: Check whether images has created or not.

check whether image has created or not

docker images

Step-8: Create a POD file and move image file into the Kubernetes

now need to create a pod file and then deploy image into Kubernetes cluster

then run it. File name: Pod.yml

apiVersion: v1

kind: Pod

metadata:

  name: k8webapi-image-web-test

spec:

  containers:

    - name: k8webapi-image-web

      image: k8webapi-image

      imagePullPolicy: IfNotPresent

      ports:

        - name: web

          containerPort: 80

Step-9: Now check POD is running or not

check pod created successfully using below command:

kubectl port-forward k8webapi-image-web-test 5000:80