Dockerfile copying war to local linked volume - dockerfile

Question

I have a note app that I am building with a Dockerfile in the maven app.
I want to copy the artifact note-1.0.war to local linked volume to folder like webapps. So far I have the following in a Dockerfile:
FROM maven:latest
MAINTAINER Sonam <emailme#gmail.com>
RUN apt-get update
WORKDIR /code
#Prepare by downloading dependencies
ADD pom.xml /code/pom.xml
RUN ["mvn", "dependency:resolve"]
RUN ["mvn", "verify"]
#Adding source, compile and package into a fat jar
ADD src /code/src
RUN ["mvn", "clean"]
#RUN ["mvn", "install"]
RUN ["mvn", "install", "-Dmaven.test.skip=true"]
RUN mkdir webapps
COPY note-1.0.war webapps
#COPY code/target/note-1.0.war webapps
Unfortunately, I keep seeing the "no such file or directory" at the COPY statement. The following is the error from build on Docker hub:
...
---> bd555aecadbd
Removing intermediate container 69c09945f954
Step 11 : RUN mkdir webapps
---> Running in 3d114c40caee
---> 184903fa1041
Removing intermediate container 3d114c40caee
Step 12 : COPY note-1.0.war webapps
lstat note-1.0.war: no such file or directory
How can I copy the war file to a "webapps" folder that I executed in
RUN mkdir webapps
thanks

Answer 1

The COPY instruction copies new files or directories from <src> and adds them to the filesystem of the container at the path <dest>.
In your example the docker build is looking for note-1.0.war in the same directory than Dockerfile.
If I understand your intention, you want to copy a file inside the image that is build from previous RUN in Dockerfile.
So you should use something like
RUN cp /code/target/note-1.0.war /code/webapps