Docker build failed creating '/app'

[YoongiKim]

Prerequisites

• Are you running the latest bert-as-service?
• Did you follow the installation and the usage instructions in README.md?
• Did you check the FAQ list in README.md?
• Did you perform a cursory search on existing issues?

System information

• Using docker image: tensorflow/tensorflow:1.12.0-gpu-py3

---

Description

How to reproduce

git clone https://github.com/hanxiao/bert-as-service.git
cd bert-as-service
docker build -t bert-as-service -f ./docker/Dockerfile .

Output

~/Projects/bert-as-service$ docker build -t bert-as-service -f ./docker/Dockerfile .
Sending build context to Docker daemon  13.45MB
Step 1/7 : FROM tensorflow/tensorflow:1.12.0-gpu-py3
 ---> 413b9533f92a
Step 2/7 : RUN pip install bert-serving-server[http]
 ---> Using cache
 ---> 84941411ab9c
Step 3/7 : COPY ./docker/entrypoint.sh /app
 ---> Using cache
 ---> e2fbe8e0b7ca
Step 4/7 : WORKDIR /app
Cannot mkdir: /app is not a directory

Error message is Cannot mkdir: /app is not a directory

Original docker/Dockerfile

FROM tensorflow/tensorflow:1.12.0-gpu-py3
RUN pip install bert-serving-server[http]
COPY ./docker/entrypoint.sh /app
WORKDIR /app
ENTRYPOINT ["/app/entrypoint.sh"]
CMD []
HEALTHCHECK --timeout=5s CMD curl -f http://localhost:8125/status/server || exit 1

If I add command RUN ls -al / before WORKDIR /app

drwxr-xr-x   1 root root         6 Jun 24 08:16 .
drwxr-xr-x   1 root root         6 Jun 24 08:16 ..
-rwxr-xr-x   1 root root         0 Jun 24 08:16 .dockerenv
**-rwxrwxr-x   1 root root        78 Jun 24 08:01 app**
drwxr-xr-x   1 root root       179 Nov  5  2018 bin
drwxr-xr-x   2 root root         6 Apr 12  2016 boot
drwxr-xr-x   5 root root       340 Jun 24 08:16 dev
drwxr-xr-x   1 root root        66 Jun 24 08:16 etc
drwxr-xr-x   2 root root         6 Apr 12  2016 home
drwxr-xr-x   1 root root        56 Nov  5  2018 lib
drwxr-xr-x   2 root root        34 Oct  5  2018 lib64
drwxr-xr-x   2 root root         6 Oct  5  2018 media
drwxr-xr-x   2 root root         6 Oct  5  2018 mnt
drwxr-xr-x   2 root root       131 Nov  5  2018 notebooks
drwxr-xr-x   2 root root         6 Oct  5  2018 opt
dr-xr-xr-x 280 root root         0 Jun 24 08:16 proc
drwx------   1 root root        20 Nov  5  2018 root
drwxr-xr-x   1 root root        27 Nov  5  2018 run
-rwxrwxr-x   1 root root       733 Nov  5  2018 run_jupyter.sh
drwxr-xr-x   1 root root        21 Oct 19  2018 sbin
drwxr-xr-x   2 root root         6 Oct  5  2018 srv
dr-xr-xr-x  13 root root         0 Jun 24 07:55 sys
-rw-r--r--   1 root root 281651790 Nov  5  2018 tensorflow_gpu-1.12.0-cp35-cp35m-manylinux1_x86_64.whl
drwxrwxrwt   1 root root         6 Jun 24 08:16 tmp
drwxr-xr-x   1 root root        19 Oct  5  2018 usr
drwxr-xr-x   1 root root        90 Nov  5  2018 var

As you see /app is not a directory.

My fix

FROM tensorflow/tensorflow:1.12.0-gpu-py3
RUN pip install bert-serving-server[http]
COPY ./docker/entrypoint.sh /app/  # <----- appended '/'
WORKDIR /app
ENTRYPOINT ["/app/entrypoint.sh"]
CMD []
HEALTHCHECK --timeout=5s CMD curl -f http://localhost:8125/status/server || exit 1

And it works as OK.

Successfully built 44a1bfa8a89f
Successfully tagged bert-as-service:latest

I will add pull requests

[varshaneya]

@hanxiao can you merge the PR #572 to overcome this error?