Docker build instructions do not work

Followed instructions here https://github.com/linkedin/iris/tree/master/ops/packer

packer build -only=docker ./output/iris.json

<lots of logs>

    docker: mv: cannot stat '/home/iris/source/ops/config/systemd/uwsgi-iris.service': No such file or directory
==> docker: Killing the container: 3ae3090eb6e4e524f7d3e71decf92642267086b7b28aebcc2e23baad6115eb85
Build 'docker' errored: Script exited with non-zero exit status: 1

==> Some builds didn't complete successfully and had errors:
--> docker: Script exited with non-zero exit status: 1

==> Builds finished but no artifacts were created.

[lukdz]

I have different problem during building of docker image using Packer:

    docker: Processing /home/iris/source
    docker:     ERROR: Command errored out with exit status 1:
    docker:      command: /home/iris/env/bin/python2 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-L6LXo8/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-L6LXo8/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-J0m82F
    docker:          cwd: /tmp/pip-req-build-L6LXo8/
    docker:     Complete output (5 lines):
    docker:     Traceback (most recent call last):
    docker:       File "<string>", line 1, in <module>
    docker:       File "/tmp/pip-req-build-L6LXo8/setup.py", line 10, in <module>
    docker:         with open('README.md', 'r') as fd:
    docker:     IOError: [Errno 2] No such file or directory: 'README.md'
    docker:     ----------------------------------------
    docker: ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
==> docker: Killing the container: ce1375cbb71563ff4f9b170ea9c1049f9729f139db571dfa0ff2d27310bfe3e7
Build 'docker' errored: Script exited with non-zero exit status: 1

==> Some builds didn't complete successfully and had errors:
--> docker: Script exited with non-zero exit status: 1

==> Builds finished but no artifacts were created.

Steps to reproduce:

git clone https://github.com/linkedin/iris.git 
cd iris/ops/packer
mkdir output
python3 gen_packer_cfg.py ./iris.yaml | tail -n +2 > ./output/iris.json
packer build -only=docker ./output/iris.json 

Problem start at commit 65c45891976ecaf61773d2e695a86524ed7b8e2e

[baryluk]

I have a bunch of enhancements to documentation and Dockerfile and packer setup, that should resolve this. This also updates to python3 , newer ubuntu, and improves the entrypoint mechanism.

I will send it in coming days.