Add Dockerfile, .dockerignore and doc

Author: themetalfleece

.dockeringore

@@ -0,0 +1,2 @@
+node_modules
+dist

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:16-alpine
+
+WORKDIR /usr/app
+
+# first copy just the package and the lock file, for caching purposes
+COPY package.json ./
+COPY yarn.lock ./
+
+# install dependencies
+RUN yarn
+
+# copy the entire project
+COPY . .
+
+# build
+RUN yarn build
+
+EXPOSE 3000
+CMD [ "yarn", "start" ]

README.md

@@ -21,6 +21,22 @@
 -   You can run `yarn dev` to combine the 2 steps above, while listening to changes and restarting automatically.
     -   You need to run `yarn global add ts-node nodemon` once for this to run.
 
+## Run with Docker
+
+1. Build:
+
+    ```
+    docker build -t my-app .
+    ```
+
+    Replacing `my-app` with the image name.
+
+2. Run
+    ```
+    docker run -d -p 3000:3000 my-app
+    ```
+    Replacing `my-app` with the image name, and `3000:3000` with the `host:container` ports to publish.
+
 ## Linting & Formatting
 
 -   Run `yarn lint` to lint the code.