Building the Dockerfile generates errors

[esola-thomas]

The current Dockerfile https://github.com/open-quantum-safe/liboqs-python/blob/60a40a0fc67666afc1bd4400628d50dfd5aaa6b0/docker/Dockerfile builds with errors:

ERROR [stage-1 5/9] RUN cd /opt/liboqs-python && python3 setup.py install 0.4s

[stage-1 5/9] RUN cd /opt/liboqs-python && python3 setup.py install:
0.342 python3: can't open file '/opt/liboqs-python/setup.py': [Errno 2] No such file or directory

---

2 warnings found (use docker --debug to expand):

• FromAsCasing: 'as' and 'FROM' keywords' casing do not match (line 9)
• LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format (line 16)
  Dockerfile:53

---

51 |
52 | # Install liboqs-python
53 | >>> RUN cd /opt/liboqs-python && python3 setup.py install
54 |
55 | # Enable a normal user

ERROR: failed to solve: process "/bin/sh -c cd /opt/liboqs-python && python3 setup.py install" did not complete successfully: exit code: 2

2 warnings found (use docker --debug to expand):

• FromAsCasing: 'as' and 'FROM' keywords' casing do not match (line 13)
• LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format (line 20)