Create Dockerfile

Dockerfile

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+FROM kasmweb/core-ubuntu-focal:1.14.0
+USER root
+
+ENV HOME /home/kasm-default-profile
+ENV STARTUPDIR /dockerstartup
+ENV INST_SCRIPTS $STARTUPDIR/install
+WORKDIR $HOME
+
+######### Customize Container Here ###########
+
+RUN  wget -qO - https://download.sublimetext.com/sublimehq-pub.gpg | apt-key add - \
+    && apt-get update \
+    && apt-get install -y apt-transport-https \
+    && echo "deb https://download.sublimetext.com/ apt/stable/" |  tee /etc/apt/sources.list.d/sublime-text.list \
+    && apt-get update \
+    && apt-get install sublime-text \
+    && cp /usr/share/applications/sublime_text.desktop $HOME/Desktop/ \
+    && chmod +x $HOME/Desktop/sublime_text.desktop \
+    && chown 1000:1000 $HOME/Desktop/sublime_text.desktop
+
+
+######### End Customizations ###########
+
+RUN chown 1000:0 $HOME
+RUN $STARTUPDIR/set_user_permission.sh $HOME
+
+ENV HOME /home/kasm-user
+WORKDIR $HOME
+RUN mkdir -p $HOME && chown -R 1000:0 $HOME
+
+USER 1000