I want to mount a tmpfs filesystem in docker container. For this I am passing mount command like this:
docker run --mount type=tmpfs,destination=/tempdisk,tmpfs-mode=770,tmpfs-size=4m --name projectname projectname:latest
The above command is working perfectly fine.
Is there a way to do this in dockerfile? or through shell script? I tried to implement through dockerfile like below:
RUN mkdir -p /tmpfolder
RUN chmod 777 /tmpfolder
RUN mount -t tmpfs -o size=32m tmpfs /tmpfolder
But it gives error at 3rd line when I do docker build as:
mount: permission denied
Please guide me regarding this.