Cloud Agent with Dockerfile

Support Help
3

I’ve experienced the same issue and solved by following.

  • Located both environment.json and Dockerfile under .cursor/
  • Installed sudo in Dockerfile
  • Grant execution permission to bin/ scripts (bundle, rails, setup, etc.)

Dockerfile sample:

FROM ruby:3.2.2

ENV DEBIAN_FRONTEND=noninteractive

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
       build-essential \
       ca-certificates \
       curl \
       git \
       gnupg \
       lsb-release \
       openssh-client \
       tzdata \
       sudo \
    && rm -rf /var/lib/apt/lists/*

RUN install -d /etc/apt/keyrings \
    && curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
       | gpg --dearmor -o /etc/apt/keyrings/postgresql.gpg \
    && echo "deb [signed-by=/etc/apt/keyrings/postgresql.gpg] https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" \
       > /etc/apt/sources.list.d/pgdg.list \
    && apt-get update \
    && apt-get install -y --no-install-recommends \
       postgresql-16 \
       postgresql-client-16 \
       postgresql-16-pgvector \
    && rm -rf /var/lib/apt/lists/*

RUN useradd -ms /bin/bash ubuntu
RUN echo 'ubuntu ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
USER ubuntu
WORKDIR /home/ubuntu

ENV PATH="/home/ubuntu/.local/bin:${PATH}"