feature: add Docker file

browser.Dockerfile

@@ -0,0 +1,72 @@
+# Builder stage
+FROM node:18-bullseye AS build-stage
+
+# install required tools to build the application
+RUN apt-get update && apt-get install -y libxkbfile-dev libsecret-1-dev
+
+WORKDIR /home/theia
+
+# Copy repository files
+COPY . .
+
+# Remove unnecesarry files for the browser application
+# Download plugins and build application production mode
+# Use yarn autoclean to remove unnecessary files from package dependencies
+RUN yarn --pure-lockfile && \
+    yarn build:extensions && \
+    yarn download:plugins && \
+    yarn browser build && \
+    yarn && \
+    yarn autoclean --init && \
+    echo *.ts >> .yarnclean && \
+    echo *.ts.map >> .yarnclean && \
+    echo *.spec.* >> .yarnclean && \
+    yarn autoclean --force && \
+    yarn cache clean && \
+    rm -rf .git applications/electron theia-extensions/launcher theia-extensions/updater node_modules
+
+# Production stage uses a small base image
+FROM node:18-bullseye-slim AS production-stage
+
+# Create theia user and directories
+# Application will be copied to /home/theia
+# Default workspace is located at /home/project
+RUN adduser --system --group theia
+RUN chmod g+rw /home && \
+    mkdir -p /home/project && \
+    chown -R theia:theia /home/theia && \
+    chown -R theia:theia /home/project;
+
+# Install required tools for application: Temurin JDK, JDK, SSH, Bash, Maven
+# Node is already available in base image
+RUN apt-get update && apt-get install -y wget apt-transport-https && \
+    wget -O - https://packages.adoptium.net/artifactory/api/gpg/key/public | tee /usr/share/keyrings/adoptium.asc && \
+    echo "deb [signed-by=/usr/share/keyrings/adoptium.asc] https://packages.adoptium.net/artifactory/deb $(awk -F= '/^VERSION_CODENAME/{print$2}' /etc/os-release) main" | tee /etc/apt/sources.list.d/adoptium.list && \
+    apt-get update && apt-get install -y git openssh-client openssh-server bash libsecret-1-0 temurin-17-jdk maven && \
+    apt-get purge -y wget && \
+    apt-get clean
+
+ENV HOME /home/theia
+WORKDIR /home/theia
+
+# Copy application from builder-stage
+COPY --from=build-stage --chown=theia:theia /home/theia /home/theia
+
+EXPOSE 3000
+
+# Specify default shell for Theia and the Built-In plugins directory
+ENV SHELL=/bin/bash \
+    THEIA_DEFAULT_PLUGINS=local-dir:/home/theia/plugins
+
+# Use installed git instead of dugite
+ENV USE_LOCAL_GIT true
+
+# Swtich to Theia user
+USER theia
+WORKDIR /home/theia/applications/browser
+
+# Launch the backend application via node
+ENTRYPOINT [ "node", "/home/theia/applications/browser/lib/backend/main.js" ]
+
+# Arguments passed to the application
+CMD [ "/home/project", "--hostname=0.0.0.0" ]