Implemented Docker and Docker Compose support

.dockerignore

@@ -0,0 +1,5 @@
+.github
+.gitignore
+codecov.yaml
+LICENSE
+README.md

.github/workflows/docker.yml

@@ -0,0 +1,23 @@
+name: Docker
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+
+      runs-on: ubuntu-latest
+
+      steps:
+      - uses: actions/checkout@v2
+
+      - name: build
+        run: docker build . -t modern-cpp
+
+      - name: test
+        run: docker run modern-cpp sh -c "./build/test/GreeterTests"

Dockerfile

@@ -0,0 +1,25 @@
+FROM gcc:9.2
+
+ENV DEBIAN_FRONTEND noninteractive
+
+# Installing Dependencies
+RUN apt-get update && apt-get install -y \
+    wget \
+ && rm -rf /var/lib/apt/lists/* 
+
+# Installing CMake
+RUN wget "https://github.com/Kitware/CMake/releases/download/v3.18.3/cmake-3.18.3-Linux-x86_64.sh" \
+ && chmod a+x cmake-3.18.3-Linux-x86_64.sh \
+ && ./cmake-3.18.3-Linux-x86_64.sh --prefix=/usr/local --skip-license \
+ && rm cmake-3.18.3-Linux-x86_64.sh
+
+# Copying files
+COPY . /app
+WORKDIR /app
+
+# Building
+RUN cmake -Hall -Bbuild \
+ && cmake --build build
+
+# Running
+CMD [ "./build/standalone/Greeter" ]

README.md

@@ -27,6 +27,7 @@ This template is the result of learnings from many previous projects and should
 - Installable target with automatic versioning information and header generation via [PackageProject.cmake](https://github.com/TheLartians/PackageProject.cmake)
 - Automatic [documentation](https://thelartians.github.io/ModernCppStarter) and deployment with [Doxygen](https://www.doxygen.nl) and [GitHub Pages](https://pages.github.com)
 - Support for [sanitizer tools, and more](#additional-tools)
+- Built-in [Docker support](#docker)
 
 ## Usage
 
@@ -138,6 +139,41 @@ Additional arguments can be passed to the analyzers by setting the `CLANG_TIDY_A
 
 Ccache can be enabled by configuring with `-DUSE_CCACHE=<ON | OFF>`.
 
+## Docker
+
+The project supports [Docker](https://www.docker.com) out-of-the-box, which allows building and running the project inside a container.
+The container builds all targets, so you can run any of them passing a command after `sh -c`.
+
+### Docker Workflow
+
+```bash
+# build
+docker build . -t modern-cpp-starter
+# run tests
+docker run modern-cpp-starter sh -c "./build/test/GreeterTests"
+# run standalone
+docker run modern-cpp-starter
+```
+
+### Docker Compose Workflow
+
+```bash
+# build
+docker-compose up --build
+# run tests
+docker-compose run application sh -c "./build/test/GreeterTests"
+# run standalone
+docker-compose run application
+```
+
+### Removing Docker Support
+
+Docker support is optional, if you don't need it simply remove the following files from the starter:
+
+- `.github/workflows/docker.yml`
+- `Dockerfile`
+- `docker-compose.yml`
+
 ## FAQ
 
 > Can I use this for header-only libraries?

docker-compose.yml

@@ -0,0 +1,7 @@
+version: "3.8"
+
+services:
+    application:
+        build: .
+        image: greeter
+        container_name: greeter