How to build .Net projects with Docker

build-mono-docker.md

How to build .Net projects with Docker

Certain folder structure is assumed

FAKE build script (build.fsx)

// include Fake libs
#r "./packages/FAKE/tools/FakeLib.dll"

open Fake
open Fake.Testing
open System.IO

// Directories
let curDir = Directory.GetCurrentDirectory()
let appDir = "build/app/"
let testDir = "build/test/"
let deployDir = "deploy/"

// Filesets
let appReferences = !! "app/*/*.csproj" ++ "app/*/*.fsproj" ++ "app/*/app/*/*.csproj" ++ "app/*/app/*/*.fsproj"
let testReferences = !! "test/**/*.csproj" ++ "test/**/*.fsproj"

// info
let applicationName = "TOFTradingAPI"
let version = "0.1"  // or retrieve from CI server

// Properties
let buildProps = [("SolutionDir", curDir)]

// Targets
Target "Clean" (fun _ ->
  CleanDirs [appDir; testDir; deployDir]
)

Target "BuildApp" (fun _ ->
  // compile all projects below app/
  MSBuildReleaseExt appDir buildProps "Build" appReferences
  |> Log "AppBuild-Output: "
)

Target "BuildTest" (fun _ ->
  // compile all projects below test/
  MSBuildReleaseExt testDir buildProps "Build" testReferences
  |> Log "TestBuild-Output: "
)

Target "UnitTest" (fun _ ->
  !! (testDir @@ "*Test*.dll")
  |> NUnit3 (fun p -> { p with ResultSpecs = [testDir @@ "UnitTestResults.xml"]; Where = "cat == Unit" })
)

Target "IntegrationTest" (fun _ ->
  !! (testDir @@ "*Test*.dll")
  |> NUnit3 (fun p -> { p with ResultSpecs = [testDir @@ "IntegrationTestResults.xml"]; Where = "cat == Integration" })
)

Target "Deploy" (fun _ ->
  !! (appDir + "/**/*.*")
  -- "*.zip"
  |> Zip appDir (deployDir + applicationName + "." + version + ".zip")
)

// Build order
"Clean"
  ==> "BuildApp"
  ==> "BuildTest"
  ==> "UnitTest"
  ==> "Deploy"
  ==> "IntegrationTest"

// start build
RunTargetOrDefault "UnitTest"

build.sh

#!/bin/bash
if test "$OS" = "Windows_NT"
then
  # use .Net

  .paket/paket.bootstrapper.exe
  exit_code=$?
  if [ $exit_code -ne 0 ]; then
  	exit $exit_code
  fi

  .paket/paket.exe restore
  exit_code=$?
  if [ $exit_code -ne 0 ]; then
  	exit $exit_code
  fi

  packages/FAKE/tools/FAKE.exe $@ --fsiargs build.fsx
else
  # use mono
  mono .paket/paket.bootstrapper.exe
  exit_code=$?
  if [ $exit_code -ne 0 ]; then
  	exit $exit_code
  fi

  mono .paket/paket.exe restore
  exit_code=$?
  if [ $exit_code -ne 0 ]; then
  	exit $exit_code
  fi
  mono packages/FAKE/tools/FAKE.exe $@ --fsiargs -d:MONO build.fsx
fi

build.cmd

@echo off
cls

.paket\paket.bootstrapper.exe
if errorlevel 1 (
  exit /b %errorlevel%
)

.paket\paket.exe restore
if errorlevel 1 (
  exit /b %errorlevel%
)

packages\FAKE\tools\FAKE.exe build.fsx %*

Dockerfile

FROM mono
ADD . /src
VOLUME /src/build/app
WORKDIR /src
CMD ["./build.sh", "Deploy"]

build-docker.sh

#!/bin/bash

IMAGE_NAME="myprojectname"
HTTP_PROXY="http://127.0.0.1:3128"
HTTPS_PROXY="http://127.0.0.1:3128"

RED='\033[1;31m'
YELLOW='\033[1;33m'
GREEN='\033[1;32m'
NC='\033[0m'

docker build -t $IMAGE_NAME .
rc=$?; if [[ $rc != 0 ]]; then echo -e "\n${RED}ERROR${NC}: cannot assemble build image\n"; exit $rc; fi

docker run --rm --volume $(pwd)/deploy:/src/build/app --net host --env http_proxy=$HTTP_PROXY --env https_proxy=$HTTPS_PROXY $IMAGE_NAME
rcbuild=$?

docker rmi $IMAGE_NAME
rc=$?; if [[ $rc != 0 ]]; then echo -e "\n${YELLOW}WARN${NC}: cannot remove build image\n"; fi

if [[ $rcbuild != 0 ]]; then echo -e "\n${RED}ERROR${NC}: build/test failed\n"; exit $rcbuild; fi

echo -e "\n${GREEN}Build succeeded${NC}\n"