asked on Docker ReBuild copy file from docker host
Hi Docker Experts,
I have a vendor provided docker image. Which I have it in my docker registry.
I have simple Docker File which uses this image as a BASE image.
1. Would like to copy a file from the docker image to host
2. update the copied file on the host
3. Copy updated file back to docker in the same location
4. build docker with new tag
please help
Simple Dockerifle
For me even simple COPY is failing
lstat tmp/test.txt: no such file or directory
I have a vendor provided docker image. Which I have it in my docker registry.
I have simple Docker File which uses this image as a BASE image.
1. Would like to copy a file from the docker image to host
2. update the copied file on the host
3. Copy updated file back to docker in the same location
4. build docker with new tag
please help
Simple Dockerifle
FROM xxxxxxxx.dkr.ecr.ap-southeast-2.amazonaws.com/busybox1
RUN echo foo > bar
COPY /tmp/test.txt /tmp/test_upd.txt
For me even simple COPY is failing
lstat tmp/test.txt: no such file or directory
JavaDocker
Last Comment
enthuguy
Nothing before the copy creates that file that i can see. The file that is created is called 'bar'
ASKER
this file already exists in /tmp/test.txt
Not according to lstat
What is the output of
What is the output of
ls -l /tmp/test.txt
ASKER
ls -l /tmp/test.txt
-rwxrwxr-x 1 jenkins jenkins 0 Nov 23 23:32 /tmp/test.txt
-rwxrwxr-x 1 jenkins jenkins 0 Nov 23 23:32 /tmp/test.txt
ASKER
this worked
id=$(docker create xxxxxxxx.dkr.ecr.ap-southe
docker cp $id:/file.txt /tmp/file.txt
docker cp /tmp/foo.txt $id:/foo.txt
docker cp $id:/foo.txt /tmp/new_foo.txt
docker image tag xxxxxxxx.dkr.ecr.ap-southe
docker rm -v $id
id=$(docker create xxxxxxxx.dkr.ecr.ap-southe
docker cp $id:/file.txt /tmp/file.txt
docker cp /tmp/foo.txt $id:/foo.txt
docker cp $id:/foo.txt /tmp/new_foo.txt
docker image tag xxxxxxxx.dkr.ecr.ap-southe
docker rm -v $id
ASKER
this worked
id=$(docker create xxxxxxxx.dkr.ecr.ap-southe
docker cp $id:/file.txt /tmp/file.txt
docker cp /tmp/foo.txt $id:/foo.txt
docker cp $id:/foo.txt /tmp/new_foo.txt
docker image tag xxxxxxxx.dkr.ecr.ap-southe
docker rm -v $id
id=$(docker create xxxxxxxx.dkr.ecr.ap-southe
docker cp $id:/file.txt /tmp/file.txt
docker cp /tmp/foo.txt $id:/foo.txt
docker cp $id:/foo.txt /tmp/new_foo.txt
docker image tag xxxxxxxx.dkr.ecr.ap-southe
docker rm -v $id
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