Docker Command Part-12 By Raj Gupta

Copy the file from local system to docker container

[root@ip-172-31-82-31 dockerfiles]# vi Dockerfile
[root@ip-172-31-82-31 dockerfiles]# cat Dockerfile
FROM ubuntu:16.04
LABEL name="Raj Gupta"
LABEL email="rajkumargupta14@gmail.com"
ENV NAME raj
ENV PASS password
RUN pwd>/tmp/1st.txt
RUN cd /tmp/
RUN pwd>tmp/2nd.txt
WORKDIR /tmp
RUN pwd>/tmp/3rd.txt
RUN mkdir -p /tmp/project
COPY testproject /tmp/project/

[root@ip-172-31-82-31 dockerfiles]# mkdir testproject

[root@ip-172-31-82-31 dockerfiles]# cd testproject/

[root@ip-172-31-82-31 testproject]# touch 1.txt

[root@ip-172-31-82-31 testproject]# touch 2.txt

[root@ip-172-31-82-31 testproject]# cd ..

[root@ip-172-31-82-31 dockerfiles]# docker image build -t rajubuntu:14 .

[root@ip-172-31-82-31 dockerfiles]# docker container run -P -it rajubuntu:14

root@5e68fe116639:/tmp# ls

1st.txt  2nd.txt  3rd.txt  project

root@5e68fe116639:/tmp# cd project/

root@5e68fe116639:/tmp/project# ls

1.txt  2.txt

We can do same thing by ADD command also but one more benefit of add command is if you copy any .tar file from local to container by using ADD command then it will extract the tar file but copy command simply copy the tar file.

root@5e68fe116639:/tmp/project# [root@ip-172-31-82-31 dockerfiles]#

[root@ip-172-31-82-31 dockerfiles]# clear

[root@ip-172-31-82-31 dockerfiles]# vi Dockerfile

[root@ip-172-31-82-31 dockerfiles]# cat Dockerfile

FROM ubuntu:16.04

LABEL name="Raj Gupta"

LABEL email="rajkumargupta14@gmail.com"

ENV NAME raj

ENV PASS password

RUN pwd>/tmp/1st.txt

RUN cd /tmp/

RUN pwd>tmp/2nd.txt

WORKDIR /tmp

RUN pwd>/tmp/3rd.txt

RUN mkdir -p /tmp/project2

ADD testproject /tmp/project2/

[root@ip-172-31-82-31 dockerfiles]# docker image build -t rajubuntu:81 .

[root@ip-172-31-82-31 dockerfiles]# docker container run -P -it rajubuntu:81

root@457e0e04200f:/tmp# ls

1st.txt  2nd.txt  3rd.txt  project2

root@457e0e04200f:/tmp# cd project2/

root@457e0e04200f:/tmp/project2# ls

1.txt  2.txt

root@457e0e04200f:/tmp/project2#