I'm trying to build a Docker image with SQL Server and SSIS.

I created a Dockerfile using a template from a response at SSISDB/SSIS in docker linux containers? #213 .

I updated the code with Microsoft's instructions for installing SSIS on Linux .

The FROM instruction refers to Microsoft's Ubuntu-based Docker image for SQL Server 2022.

Here is my Dockerfile:

FROM mcr.microsoft.com/mssql/server:2022-latest

USER root

RUN apt-get update && \
    apt-get install -y software-properties-common curl && \
    rm -rf /var/lib/apt/lists/*

RUN curl https://packages.microsoft.com/keys/microsoft.asc | tee /etc/apt/trusted.gpg.d/microsoft.asc
RUN add-apt-repository "$(curl https://packages.microsoft.com/config/ubuntu/20.04/mssql-server-2022.list)"

RUN apt-get update
RUN apt-get install -y mssql-server-is

RUN SSIS_PID=Developer ACCEPT_EULA=Y /opt/ssis/bin/ssis-conf -n setup

RUN mkdir -p /home/mssql/.ssis/.system

RUN chmod -R 777 /home/mssql

RUN cp /root/.bashrc /home/mssql/.bashrc

RUN echo "\nexport PATH=/opt/ssis/bin:$PATH" > /home/mssql/.bashrc

USER mssql

When I run it, though, I get an error saying 'Could not write licensing information':

=> ERROR [ 7/11] RUN SSIS_PID=Developer ACCEPT_EULA=Y /opt/ssis/bin/ssis-conf -n setup                                                                    0.4s
------
 > [ 7/11] RUN SSIS_PID=Developer ACCEPT_EULA=Y /opt/ssis/bin/ssis-conf -n setup:
0.390 Could not write licensing information.
------
Dockerfile:15
--------------------
  13 |     RUN apt-get install -y mssql-server-is
  14 |     
  15 | >>> RUN SSIS_PID=Developer ACCEPT_EULA=Y /opt/ssis/bin/ssis-conf -n setup
  16 |     
  17 |     RUN mkdir -p /home/mssql/.ssis/.system
--------------------
ERROR: failed to solve: process "/bin/sh -c SSIS_PID=Developer ACCEPT_EULA=Y /opt/ssis/bin/ssis-conf -n setup" did not complete successfully: exit code: 1

My searches have found nothing related to this error. What am I missing?