Added Dockerfile for quick server deployment

Containers/Docker/Dockerfile

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+FROM ubuntu:22.04
+
+# This snippet installs:
+#	curl, which is required to install Node Version Manager, ensuring we can get the correct version of Node.
+#	git, in order to clone Ubiq
+#	pwgen, which is required to generate secrets local to this container
+#	dos2unix, a utility used to make sure we don't have any windows line endings in place, which will mess with bash.
+#	coturn, a TURN server
+
+RUN apt-get -y update
+RUN apt-get -y install curl git pwgen dos2unix coturn
+
+# This snippet (from Steve Campbell @ https://stackoverflow.com/questions/25899912/how-to-install-nvm-in-docker) installs NVM and the specified version of Node.
+
+ENV NVM_DIR /root/.nvm
+RUN mkdir -p $NVM_DIR
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash
+ENV NODE_VERSION v18.12.1
+RUN /bin/bash -c "source $NVM_DIR/nvm.sh && nvm install $NODE_VERSION && nvm use --delete-prefix $NODE_VERSION"
+
+ENV NODE_PATH $NVM_DIR/versions/node/$NODE_VERSION/lib/node_modules
+ENV PATH      $NVM_DIR/versions/node/$NODE_VERSION/bin:$PATH
+
+# The next two lines checkout the server code only. The sparse checkout clones only the metadata, to avoid copying the full history. sparse-checkout add then prompts git to download just the Node folder.
+
+RUN git clone --filter=blob:none --sparse --branch "unity-v1.0.0-pre.3" https://github.com/UCL-VR/ubiq.git ubiq
+WORKDIR ubiq
+RUN git sparse-checkout add Node
+WORKDIR Node
+RUN npm i
+WORKDIR /
+
+# This line copies the local config template into the container. This template will be updated at runtime before the servers are started.
+
+COPY local.json /ubiq/Node/config/local.json
+
+# This line copies the local coturn config over the existing one. This template will be updated at runtime before the servers are started.
+
+COPY turnserver.conf /etc/turnserver.conf
+
+# This line copies the script that will configure and start the server at runtime. dos2unix ensures that it conforms to unix line endings.
+
+COPY ubiq.sh /
+RUN dos2unix /ubiq.sh
+
+# This line sets the above script as the entrypoint. When this script terminates, so will the image.
+
+ENTRYPOINT ["bash", "-c", "source /ubiq.sh"]
+
+# Finally open the relevant ports
+
+EXPOSE 8009-8030

Containers/Docker/local.json

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+{
+    "iceservers":
+    [
+        {
+            "uri" : "stun:stun.l.google.com:19302"
+        },
+        {
+            "uri" : "turn:UBIQ_HOSTNAME:8011",
+            "secret" : "UBIQ_TURNSECRET",
+            "timeoutSeconds" : 1440
+        }
+    ],
+    "roomserver":
+    {
+        "wss":
+        {
+            "cert":"/certs/cert.pem",
+            "key":"/certs/key.pem"
+        }
+    },
+    "status":
+    {
+        "port":8012,
+        "cert":"/certs/cert.pem",
+        "key":"/certs/key.pem",
+        "apikeys":[]
+    }
+}

Containers/Docker/turnserver.conf

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+fingerprint
+use-auth-secret
+listening-port=8011
+static-auth-secret=UBIQ_TURNSECRET
+realm=UBIQ_HOSTNAME
+external-ip=UBIQ_HOSTNAME
+min-port=8013
+max-port=8030
+cert=/certs/cert.pem
+pkey=/certs/key.pem

Containers/Docker/ubiq.sh

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+#!/bin/bash
+
+echo "Starting Ubiq Server Container"
+
+export UBIQ_TURNSECRET=$(pwgen 20 1)
+
+# This snippet generates the self-signed certificate that will be used if one is not provided via the mount option
+# The -node option ensures the key does not require a keyphrase
+# This must be executed after the hostname is known
+# If testing this command on windows, consider prepending it with winpty as sometimes any interactive prompt(s) can get messed up.
+
+if [ -d /certs ]; then
+	echo "Using host certificates."
+else
+	echo "Generating certificates for $HOSTNAME"
+	mkdir /certs
+	cd /certs
+	openssl req -new -nodes -x509 -subj "/CN=$HOSTNAME/emailAddress=ubiq@$HOSTNAME/C=UK/ST=London/L=Gower Street/O=UCL/OU=Computer Science" -keyout key.pem -out cert.pem > /dev/null 2>&1
+fi
+
+
+# This next section configures the deployment. Configurations are provided in files, so these lines replace placeholders with environment variables before starting the services.
+
+sed -i -e "s/UBIQ_TURNSECRET/$UBIQ_TURNSECRET/g" /ubiq/Node/config/local.json
+sed -i -e "s/UBIQ_TURNSECRET/$UBIQ_TURNSECRET/g" /etc/turnserver.conf
+
+sed -i -e "s/UBIQ_HOSTNAME/$HOSTNAME/g" /ubiq/Node/config/local.json
+sed -i -e "s/UBIQ_HOSTNAME/$HOSTNAME/g" /etc/turnserver.conf
+
+# Start coturn (in the background)
+
+coturn &
+sleep 1
+
+cd /ubiq/Node
+
+npm start
+
+# This last line is used for creating an interactive prompt. Uncomment it for diagnostics and debugging.
+
+# /bin/bash "$@"
+