Hello, I have a very strange problem with a “dummy docker test” and driving me crazy…
This is the situation: I have a folder: testdocker with following content (only a .deb file and a Dockerfile):
➜ testdocker ls
Brackets.1.4.Extract.64-bit.deb
Dockerfile
- In the Dockerfile I have the following:
FROM busybox
ADD . /home/
- I run in a bash console:
docker build -t buxy:base .
- Then I change the Dockerfile to:
FROM buxy:base
ADD. /home/
- and run again in a bash console:
docker build -t docker buxy:1 .
Notice that I only change de Dockerfile (.deb file is exactly the same from the start), so I hope that image buxy:1 and buxy:base have the same size, however buxy:1 double the size of buxy:base. It’s like(.deb file added again as if he had changed, but It never changed…
- Docker images command show:
buxy:1 948f4711864d 10 minutes ago 72.76 MB
buxy:base 09f74a0ef2ed 11 minutes ago 36.94 MB
busybox:latest 2c5ac3f849df 2 days ago 1.113 MB
Look at the first line (it adds 35.83 MB) (I don’t change nothing in the directory, only the Dockerfile line)
➜ testdocker docker history 948f4711864d
IMAGE CREATED CREATED BY SIZE COMMENT
948f4711864d 24 minutes ago /bin/sh -c #(nop) ADD dir:e49857bbba8b11c9088 35.83 MB
09f74a0ef2ed 25 minutes ago /bin/sh -c #(nop) ADD dir:295a59eea6b1d0bf692 35.83 MB
2c5ac3f849df 2 days ago /bin/sh -c #(nop) CMD ["sh"] 0 B
ab2b8a86ca6c 2 days ago /bin/sh -c #(nop) ADD file:566aa8660b389e4f82 1.113 MB
Also I do a full clean of docker and reinstall all without success…
I am using Ubuntu 14.04.3 LTS with kernel 3.13.0-65-generic #106-Ubuntu and Docker version 1.8.3, build f4bf5c7
Thank you!