Add a Dockerfile to allow running Telegram-React inside a container

.dockerignore

@@ -0,0 +1,5 @@
+.git
+node_modules
+.env
+.idea
+Dockerfile

Dockerfile

@@ -0,0 +1,27 @@
+FROM node:14 AS build
+
+WORKDIR /app/
+
+# Copy over package.json and package-lock.json and install dependencies first,
+# so that we don't need to re-download dependencies if they have not been modified.
+COPY package.json package-lock.json ./
+RUN npm ci
+
+COPY . .
+RUN cp -v node_modules/tdweb/dist/* public/
+
+ARG TELEGRAM_API_ID
+ENV REACT_APP_TELEGRAM_API_ID=${TELEGRAM_API_ID}
+ARG TELEGRAM_API_HASH
+ENV REACT_APP_TELEGRAM_API_HASH=${TELEGRAM_API_HASH}
+
+RUN npm run build
+
+FROM nginx:stable
+
+WORKDIR /usr/share/nginx/html/
+COPY --from=build /app/build/ .
+
+# Hack to get around the hardcoded folder structure without requiring the user to
+# go to /telegram-react in their browser
+RUN ln -s . telegram-react

README.md

@@ -48,6 +48,18 @@ Define its value to be the string `http://{username}.github.io/{repo-name}`, whe
 ```
 $ npm run deploy
 ```
+
+### Running in a Docker container
+
+In order to run Telegram-React inside a Docker container, you need to provide your Telegram API key as build arguments.
+
+```
+docker build . --build-arg TELEGRAM_API_ID=0000000 --build-arg TELEGRAM_API_HASH=00000000000000000
+```
+Replace these values with your own Telegram API key information, which you can obtain [here](https://my.telegram.org/apps).
+
+The Docker build will perform all the necessary steps to get a working build of Telegram-React.
+
 ### References
 
 1. [Deploying a React App (created using create-react-app) to GitHub Pages](https://github.com/gitname/react-gh-pages)