Add a Dockerfile to reproduce the soroban-rpc .deb install issue

Dockerfile

@@ -0,0 +1,53 @@
+FROM golang as builder
+
+# Install rust
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs > rustup.sh
+RUN chmod a+x rustup.sh && ./rustup.sh -y
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+# Build soroban-rpc
+RUN git clone https://github.com/stellar/soroban-tools.git
+WORKDIR soroban-tools
+RUN make build
+RUN go build -o /stellar-soroban-rpc ./cmd/soroban-rpc
+
+
+
+FROM ubuntu:focal
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y \
+  build-essential \
+  debhelper \
+  devscripts \
+  dh-systemd \
+  fakeroot \
+  lsb-release \
+  wget
+
+# Install the stellar apt repo
+RUN wget -qO - https://apt.stellar.org/SDF.asc | apt-key add -
+RUN echo "deb https://apt.stellar.org $(lsb_release -cs) unstable" | tee -a /etc/apt/sources.list.d/SDF.list
+RUN apt-get update
+
+# Add our debian package contents
+COPY . /packages
+WORKDIR /packages
+
+# Add soroban-rpc binary
+COPY --from=builder /stellar-soroban-rpc /packages/stellar-soroban-rpc/stellar-soroban-rpc
+
+# Configure the debian package build
+ARG VERSION=0.7.2
+ARG BUILD_NUMBER=1
+ARG CORE_VERSION=19.8.1-1250.064a2787a.focal~soroban
+RUN sed -i "s/_VERSION_/$VERSION/" stellar-soroban-rpc/debian/changelog
+RUN sed -i "s/_BUILD_VERSION_/$BUILD_NUMBER/" stellar-soroban-rpc/debian/changelog
+RUN sed -i "s/_CORE_VERSION_/$CORE_VERSION/" stellar-soroban-rpc/debian/control
+RUN sed -i "s/) stable;/) focal;/" stellar-soroban-rpc/debian/changelog
+
+# Build the .deb package
+RUN cd stellar-soroban-rpc && dpkg-buildpackage --no-sign
+
+# Try to install the package
+CMD apt install -y ./stellar-soroban-rpc_*.deb