Dockerfile RUN Shellscript error while running if

Question

I’m having a problem building on the dockerfile where I need to run a Shellscript so that I can insert a master word into it and it only contains the verification of a folder if it exists or not and if it does not display an echo to me stating that it does not exist. However it does not run this shellscript there is some way for me to get around this problem.

Operating system used : Windows Home Single

Emulated with the Docker Toolbox

Dockerfile

FROM centos
USER root
WORKDIR /home/app
COPY . /home/app
RUN apt-get update
RUN apt-get -y install nodejs
RUN sh install.sh

install sh.

if [ -f "data/global/workspaces.json" ]; then
    sed -i 's/"tp": \[\]/"tp": ["master"]/g' data/global/workspaces.json
else 
    echo "Erro: File ./data/global/workspaces.json not found!"
fi

Answer 1

Try giving permission to run the file:

FROM centos
USER root
WORKDIR /home/app
COPY .* /home/app
RUN apt-get update
RUN apt-get -y install nodejs
RUN chmod +x install.sh  <<<<<<=
RUN sh install.sh