Add Docker Build

docker/Dockerfile

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+# Builds the Web Client from the latest git repo
+
+# Two stages are used to reduce complexity and final image size. The first stage builds the actual
+# client. The second stage runs the web client using an nginx server, using the nginx
+# configurations in this folder as well as the built files from the previous stage.
+
+# Build Stage =====================================================================================
+
+# Use node image for build step (this has yarn which we need)
+FROM node:alpine as build
+
+# This variable allows you to set the default etesync server for the web client.
+# Change this to your own server if self hosting.
+ENV REACT_APP_DEFAULT_API_PATH "https://api.etebase.com/partner/etesync/"
+
+# Clones the latest web client code from git and builds the client and its dependencies with yarn
+RUN apk add --no-cache git && \
+    git clone https://github.com/etesync/etesync-web.git etesync-web && \
+    cd etesync-web && \
+    yarn && \
+    yarn build
+
+# Run Stage =======================================================================================
+
+# This lightweight image contains nginx which will run the web client
+FROM nginx:alpine
+
+# Grabs the built web client files from the previous build stage
+COPY --from=build /etesync-web/build /usr/share/nginx/html
+
+# Copies the nginx configuration from this folder to the running container
+COPY ./nginx.conf /etc/nginx/conf.d/default.conf
+
+# Exposes port 80, the port nginx is configured to listen on
+EXPOSE 80

docker/nginx.conf

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+server {
+
+    listen 80 default_server;
+    listen [::]:80 default_server;
+    charset utf-8;
+    client_max_body_size 75M;     # max upload size
+    location /        {
+      root /usr/share/nginx/html;
+      try_files $uri $uri/ /index.html =404;
+      autoindex on;
+    }
+    error_page   500 502 503 504  /50x.html;
+    location = /50x.html {
+        root   /usr/share/nginx/html;
+    }
+}
+EOF