StaffFinder Diary

In a Mac computer download and install all prerequisites below:

• Dotnet Core SDK
• Visual Studio Code
• Node / Angular
• Git
• Docker

Starting a new Project

Creating a new dotnet core web api project

dotnet new webapi -o StaffFinder.Api -n StaffFinder.Api
cd StaffFinder.Api
dotnet build
dotnet run 

When I browse http://localhost:5000/api/values I can see test json object

[
"value1",
"value2"
]

Adding docker support

Create a Dockerfile for an ASP.NET Core application

• Create a Dockerfile in your project folder. it's case sensitive
• Add the text below to your Dockerfile

FROM microsoft/aspnetcore-build:2.0 AS build-env
WORKDIR /app
# Copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

# Copy everything else and build
COPY . ./
RUN dotnet publish -c Release -o out

# Build runtime image
FROM microsoft/aspnetcore:2.0
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "StaffFinder.Api.dll"]

To make your build context as small as possible add a .dockerignore file to your project folder and copy the following into it.

bin\
obj\

Build and run the Docker image

In the command prompt and navigate to your project folder.

Use the following commands to build and run your Docker image:

docker build -t stafffinder.api
docker run -d -p 8080:80 --name myapp stafffinder.api

Go to http://localhost:8080/api/values and same api values are still there.

docker images 

to list docker images in your computer

Pushing docker image to Hub (Canister.io)

Start by logging in:

docker login --username=username cloud.canister.io:5000

The next step is to tag an image that you want to publish:

docker tag ae5da82730b1 cloud.canister.io:5000/username/my-repo:latest

Notice the format of the tag: <registry-url-including-port>/<username>/<repo-name>:<tag>. I used latest as my tag name but you can use any tag name you want.

Finally we just need to push the tag:

docker push cloud.canister.io:5000/username/my-repo

Note that this command doesn’t include the tag being pushed. It will push all tags in the given repo.

For the deploy I had to do something similar. First, log in to canister.io in the production server:

docker login --username=username cloud.canister.io:5000

Pull the image:

docker pull cloud.canister.io:5000/username/my-repo:latest

And finally start it:

docker run -d --restart=on-failure --name my-service-container cloud.canister.io:5000/username/my-repo:latest