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Docker

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Docker images can be cached via the Build-DockerCache.ps1 script.

Cache and Restore Images

1. Pull the image you want to cache:

   docker pull mcr.microsoft.com/dotnet/sdk:latest
   

2. List available images to verify:

   docker images
   

   Output:

   Only relevant table columns displayed for brevity

   Repository	Tag
   node	latest
   mcr.microsoft.com/dotnet/sdk	latest
   mcr.microsoft.com/dotnet/aspnet	latest
   samples/postgres	latest
   redis	6
   daprio/dapr	1.10.4
   openzipkin/zipkin	latest

3. Save the image:

   docker save <repository>:<tag> -o <name>-<tag>.tar
   
   #example
   docker save mcr.microsoft.com/dotnet/sdk:latest -o dotnet-sdk-latest.tar
   

4. Load the saved image:

   docker load -i <name>-<tag>.tar
   
   #example
   docker load -i dotnet-sdk-latest.tar
   

5. Create and run the image:

   docker create mcr.microsoft.com/dotnet/sdk:latest
   
   docker run -d ... mcr.microsoft.com/dotnet/sdk:latest
   

.NET Images

Dockerfile

FROM mcr.microsoft.com/dotnet/aspnet:7.0 AS base
WORKDIR /app
EXPOSE 80

FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build
WORKDIR /src
COPY ["<Project>.Api/<Project>.Api.csproj", "<Project>.Api/"]
RUN dotnet restore "<Project>.Api/<Project>.Api.csproj"
COPY . .
WORKDIR "/src/<Project>.Api"
RUN dotnet build "<Project>.Api.csproj" -c Release -o /app

FROM build AS publish
RUN dotnet publish "<Project>.Api.csproj" -c Release -o /app

FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "<Project>.Api.dll"]

.dockerignore

.dockerignore
.env
.git
.gitignore
.vs
.vscode
*/bin
*/obj
**/.toolstarget

Node Images

Dockerfile

FROM node:latest as build
WORKDIR /usr/local/app/
COPY ./ /usr/local/app/
RUN npm install
RUN npm run build

FROM nginx:latest
COPY --from=build /usr/local/app/dist/{project} /usr/share/nginx/html
EXPOSE 80

docker build -t {tag} .

docker run -it --rm -p {port}:80 {tag}

.dockerignore

.angular
.env
.git
.vscode
node_modules
.dockerignore
.gitignore
README.md

Commands

# view images in the local Docker image registry
docker images

# pull a Docker image
docker pull mcr.microsoft.com/dotnet/sdk:7.0
docker pull mcr.microsoft.com/dotnet/aspnet:7.0

# remove an image from the local Docker image registry
docker rmi <tag>:<version>

# place a container in the run state
docker run -d tmp-ubuntu

# run a .NET Web ApI container on port 5000
docker run -it --rm -p 5000:80 <image>

# place a container in the pause state
docker pause happy_wilbur

# unpause a container
docker unpause happy_wilbur

# restart a container
docker restart happy_wilbur

# place a container in the stopped state
docker stop happy_wilbur

# terminate a container
docker kill happy_wilbur

# remove one or more containers
docker rm happy_wilbur

# list running containers in all states
docker ps -a

# login to Docker Hub
docker login

# re-tag Docker image under username
docker tag <image> <username>/<image>

# push image to Docker Hub
docker push <username>/<image>

# build from docker-compose.yml
docker-compose build

# run orchestrated images
docker-compose up

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