Azure Devops nuget artifact feed and docker

Question

Is there a good way to create an authentication mechanism to Devops to be able to access the artifact NuGet feed? I would like to create a base image for my team that would allo

Answer 1

YAML

1. Run NuGetAuthenticate task to add VSS_NUGET_ACCESSTOKEN to environment variables (more info)
2. Pass token to Docker task as an argument

- task: NuGetAuthenticate@0

- task: Docker@2
  displayName: 'build docker image'
  inputs:
    command: build
    containerRegistry: 'happycodeacr'
    repository: 'hc-app-sample-api-dev'
    buildContext: '$(Pipeline.Workspace)/app'
    Dockerfile: '$(Pipeline.Workspace)/app/src/HappyCode.Api/Dockerfile'
    arguments: '--build-arg FEED_ACCESSTOKEN=$(VSS_NUGET_ACCESSTOKEN)'
    tags: |
      latest
      $(Build.BuildId)

Dockerfile

1. Download and install artifacts provider (more info)
2. Receive token
3. Set VSS_NUGET_EXTERNAL_FEED_ENDPOINTS environment variable with feed url and token for nuget restore process
4. Copy NuGet.config file
5. Run dotnet restore

FROM mcr.microsoft.com/dotnet/core/sdk:3.1-buster AS build
WORKDIR /work

RUN curl -L https://raw.githubusercontent.com/Microsoft/artifacts-credprovider/master/helpers/installcredprovider.sh  | sh
ARG FEED_ACCESSTOKEN
ENV VSS_NUGET_EXTERNAL_FEED_ENDPOINTS \
    "{\"endpointCredentials\": [{\"endpoint\":\"https://happycode.pkgs.visualstudio.com/_packaging/hc-nuget-feed/nuget/v3/index.json\", \"password\":\"${FEED_ACCESSTOKEN}\"}]}"
COPY ["NuGet.config", "./"]

COPY ["src/*/*.csproj", "./"]
RUN for projectFile in $(ls *.csproj); \
    do \
      mkdir -p ${projectFile%.*}/ && mv $projectFile ${projectFile%.*}/; \
    done
RUN dotnet restore /work/HappyCode.Api/HappyCode.Api.csproj

# further instructions