Running RStudio Server as non-root

[Theo]

Hello All,

I am trying to run RStudio Server as non-root user in a docker container and received following error [ERROR].
This works fine with default user rstudio-server. Am I missing any thing here?

--Snippet
RUN rm -f /var/lib/rstudio-server/secure-cookie-key

Start Service

ENTRYPOINT ["/usr/lib/rstudio-server/bin/rserver"]
#CMD ["--server-daemonize=0", "--server-app-armor-enabled=0"]
CMD ["--www-port=8888", "--auth-none=1", "--server-daemonize=0", "--server-app-armor-enabled=0", "--server-user=rstudio", "--server-data-dir=/var/run/rstudio-server"]

--

ERROR:

2023-03-10T06:14:05.621212Z [rserver] ERROR system error 2 (No such file or directory) [description: User not found., user-value: ]; OCCURRED AT rstudio::core::Error rstudio::core::system::User::Impl::populateUser(rstudio::core::system::User::Impl::GetPasswdFunc&, T) [with T = const char* rstudio::core::system::User::Impl::GetPasswdFunc = std::function<int(const char*, passwd*, char*, long unsigned int, passwd**)>] src/cpp/shared_core/system/User.cpp:68; LOGGED FROM: static rstudio_boost::shared_ptrrstudio::server::auth::handler::UserSession rstudio::server::auth::handler::UserSession::lookupUserSession(const string&) src/cpp/server/auth/ServerAuthHandler.cpp:943

Many thanks.

Regards,
Amar.

[EliMiller]

Hello @Theo

Do you have a line in your dockerfile where you add the user? Something like:
RUN useradd rstudio

[Theo]

Hi EliMiller,

Thanks for your reply.

Please find the useradd commands from Dockerfile.

ARG USERNAME=rstudio
ARG USER_UID=1000
ARG USER_GID=1000

RUN groupadd --gid $USER_GID $USERNAME
&& useradd --uid $USER_UID --gid $USER_GID -m $USERNAME
&& echo $USERNAME ALL=(root) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME
&& chmod 0440 /etc/sudoers.d/$USERNAME
&& echo "$USERNAME:$USERNAME" | sudo chpasswd

Regards.

[EliMiller]

Taking a look at the workbench documentation here. You also want the --system flag in useradd when using an alternate user.

[Theo]

Tried you suggestion, but no luck.

Is the rserver should always be started as root user or by sudo?

Thanks.