How to properly run entrypoint bash script on docker? - bash

Question

I would like to build a docker image for dumping large SQL Server tables into S3 using the bcp tool by combining this docker and this script. Ideally I could pass table, database, user, password and s3 path as arguments for the docker run command.
The script looks like
#!/bin/bash
TABLE_NAME=$1
DATABASE=$2
USER=$3
PASSWORD=$4
S3_PATH=$5
# read sqlserver...
# write to s3...
# .....
And the Dockerfile is:
# SQL Server Command Line Tools
FROM ubuntu:16.04
LABEL maintainer="SQL Server Engineering Team"
# apt-get and system utilities
RUN apt-get update && apt-get install -y \
curl apt-transport-https debconf-utils \
&& rm -rf /var/lib/apt/lists/*# SQL Server Command Line Tools
FROM ubuntu:16.04
LABEL maintainer="SQL Server Engineering Team"
# apt-get and system utilities
RUN apt-get update && apt-get install -y \
curl apt-transport-https debconf-utils \
&& rm -rf /var/lib/apt/lists/*
# adding custom MS repository
RUN curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add -
RUN curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list > /etc/apt/sources.list.d/mssql-release.list
# install SQL Server drivers and tools
RUN apt-get update && ACCEPT_EULA=Y apt-get install -y msodbcsql mssql-tools awscli
RUN echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc
RUN /bin/bash -c "source ~/.bashrc"
ADD ./sql2sss.sh /opt/mssql-tools/bin/sql2sss.sh
RUN chmod +x /opt/mssql-tools/bin/sql2sss.sh
RUN apt-get -y install locales
RUN locale-gen en_US.UTF-8
RUN update-locale LANG=en_US.UTF-8
ENTRYPOINT ["/opt/mssql-tools/bin/sql2sss.sh", "DB.dbo.TABLE", "SQLSERVERDB", "USER", "PASSWORD", "S3PATH"]
If I replae the entrypoint for CMD /bin/bash and run the image with -it, I can manually run the sql2sss.sh and it works properly, reading and writing to s3. However if I try to use the entrypoint as shown yelds bcp: command not found.
I also noticed if I use CMD /bin/sh in iterative mode it will produce the same error. Am I missing some configuration in order for the entrypoint to run the script properly?

Answer 1

Have you tried
ENV PATH="/opt/mssql-tools/bin:${PATH}"
Instead of exporting the bashrc?
As David Maze pointed out docker doesn't read dot files
Basically add your env definitions in the ENV primitive