docker-compose up fails with: ERROR: Could not build wheels for pendulum which use PEP 517 and cannot be installed directly

Hi there when I try to deploy contextualize on Ubuntu server 20.04 on my raspberry pi 4 I get:

ubuntu@ubuntu:/nashome/householdpi/contextualize-docker-configs/contextualise$ sudo docker-compose up 
Building web
Step 1/10 : FROM python:3
 ---> 5c4a0c85ac40
Step 2/10 : LABEL   app.name="Contextualise"   app.description="A simple and flexible tool particularly suited for organising information-heavy projects and activities consisting of unstructured and widely diverse data and information resources"   app.license="MIT License"   app.license.url="https://github.com/brettkromkamp/contextualise/blob/master/LICENSE"   app.repo.url="https://github.com/brettkromkamp/contextualise"   app.authors="Brett Kromkamp <@brettkromkamp>"
 ---> Using cache
 ---> af50285641f9
Step 3/10 : WORKDIR /usr/src/app
 ---> Using cache
 ---> edde41d20f83
Step 4/10 : COPY ./requirements.txt ./
 ---> Using cache
 ---> 949b2c8efeea
Step 5/10 : RUN pip install --user git+https://github.com/brettkromkamp/topic-db.git  && pip install --user -r requirements.txt
 ---> Running in 0a0b1d338793
Collecting git+https://github.com/brettkromkamp/topic-db.git
  Cloning https://github.com/brettkromkamp/topic-db.git to /tmp/pip-req-build-7adq7_mn
  Running command git clone -q https://github.com/brettkromkamp/topic-db.git /tmp/pip-req-build-7adq7_mn
Collecting psycopg2
  Downloading psycopg2-2.8.5.tar.gz (380 kB)
Collecting memory-profiler
  Downloading memory_profiler-0.57.0.tar.gz (34 kB)
Collecting python-slugify
  Downloading python-slugify-4.0.0.tar.gz (8.8 kB)
Collecting pytest
  Downloading pytest-5.4.3-py3-none-any.whl (248 kB)
Collecting mypy
  Downloading mypy-0.780-py3-none-any.whl (1.8 MB)
Collecting typed-tree
  Downloading typed_tree-1.0.3-py3-none-any.whl (6.7 kB)
Collecting psutil
  Downloading psutil-5.7.0.tar.gz (449 kB)
Collecting text-unidecode>=1.3
  Downloading text_unidecode-1.3-py2.py3-none-any.whl (78 kB)
Collecting pluggy<1.0,>=0.12
  Downloading pluggy-0.13.1-py2.py3-none-any.whl (18 kB)
Collecting py>=1.5.0
  Downloading py-1.8.2-py2.py3-none-any.whl (83 kB)
Collecting more-itertools>=4.0.0
  Downloading more_itertools-8.4.0-py3-none-any.whl (43 kB)
Collecting wcwidth
  Downloading wcwidth-0.2.4-py2.py3-none-any.whl (30 kB)
Collecting attrs>=17.4.0
  Downloading attrs-19.3.0-py2.py3-none-any.whl (39 kB)
Collecting packaging
  Downloading packaging-20.4-py2.py3-none-any.whl (37 kB)
Collecting typed-ast<1.5.0,>=1.4.0
  Downloading typed_ast-1.4.1.tar.gz (208 kB)
Collecting mypy-extensions<0.5.0,>=0.4.3
  Downloading mypy_extensions-0.4.3-py2.py3-none-any.whl (4.5 kB)
Collecting typing-extensions>=3.7.4
  Downloading typing_extensions-3.7.4.2-py3-none-any.whl (22 kB)
Collecting six
  Downloading six-1.15.0-py2.py3-none-any.whl (10 kB)
Collecting pyparsing>=2.0.2
  Downloading pyparsing-2.4.7-py2.py3-none-any.whl (67 kB)
Building wheels for collected packages: topic-db, psycopg2, memory-profiler, python-slugify, psutil, typed-ast
  Building wheel for topic-db (setup.py): started
  Building wheel for topic-db (setup.py): finished with status 'done'
  Created wheel for topic-db: filename=topic_db-1.0.0-py3-none-any.whl size=26927 sha256=5e5e25e1263a561588c6d6f47882f908459a84378a748d188eddd3ab13c768e1
  Stored in directory: /tmp/pip-ephem-wheel-cache-w2kz4ph9/wheels/fc/01/f3/7037d8d3eaf8c7da0ca818e7540d2e1fa4aa85c0bcd8f8c3c4
  Building wheel for psycopg2 (setup.py): started
  Building wheel for psycopg2 (setup.py): finished with status 'done'
  Created wheel for psycopg2: filename=psycopg2-2.8.5-cp38-cp38-linux_aarch64.whl size=502398 sha256=a446adc6cefa12124ea54927d3df604ebba9201ea60c6461b696cc68cb1503dc
  Stored in directory: /root/.cache/pip/wheels/35/64/21/9c9e2c1bb9cd6bca3c1b97b955615e37fd309f8e8b0b9fdf1a
  Building wheel for memory-profiler (setup.py): started
  Building wheel for memory-profiler (setup.py): finished with status 'done'
  Created wheel for memory-profiler: filename=memory_profiler-0.57.0-py3-none-any.whl size=28992 sha256=59ed6ee0f4f38a1e7ab2dd65cce435c7ff8e3d33de60814f29d18e9cdf49c983
  Stored in directory: /root/.cache/pip/wheels/24/2a/aa/41c20a5e40e527e894031ae00a70366c1aa884b89f6326a9d6
  Building wheel for python-slugify (setup.py): started
  Building wheel for python-slugify (setup.py): finished with status 'done'
  Created wheel for python-slugify: filename=python_slugify-4.0.0-py2.py3-none-any.whl size=5486 sha256=91c02cb96b8b775caa4af5a45edada0a8f1b7d4d2081e979bfad21320400efcc
  Stored in directory: /root/.cache/pip/wheels/f7/2d/24/7c629dd27a06a60618e6af1004e5667d4e38a1e914493ba72d
  Building wheel for psutil (setup.py): started
  Building wheel for psutil (setup.py): finished with status 'done'
  Created wheel for psutil: filename=psutil-5.7.0-cp38-cp38-linux_aarch64.whl size=282127 sha256=2d8b4c5af751dc65a458ad24fc3734547f4ee6bb21b3dcc3d65a31e09a8c2f37
  Stored in directory: /root/.cache/pip/wheels/90/c9/b6/04665702b01dbd9ee92a05e834b627948ed01cdd482e6a78e1
  Building wheel for typed-ast (setup.py): started
  Building wheel for typed-ast (setup.py): finished with status 'done'
  Created wheel for typed-ast: filename=typed_ast-1.4.1-cp38-cp38-linux_aarch64.whl size=909473 sha256=3deb155992fc0fec06328971c1745be522f25cf327c669f4d31a6c549b33b9f0
  Stored in directory: /root/.cache/pip/wheels/90/d4/0c/d1e5fbaba4f3eef9ced2a95737b027aca1a5ea7e52e490f3b2
Successfully built topic-db psycopg2 memory-profiler python-slugify psutil typed-ast
Installing collected packages: psycopg2, psutil, memory-profiler, text-unidecode, python-slugify, pluggy, py, more-itertools, wcwidth, attrs, six, pyparsing, packaging, pytest, typed-ast, mypy-extensions, typing-extensions, mypy, typed-tree, topic-db
  WARNING: The script mprof is installed in '/root/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The script slugify is installed in '/root/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The scripts py.test and pytest are installed in '/root/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The scripts dmypy, mypy, stubgen and stubtest are installed in '/root/.local/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed attrs-19.3.0 memory-profiler-0.57.0 more-itertools-8.4.0 mypy-0.780 mypy-extensions-0.4.3 packaging-20.4 pluggy-0.13.1 psutil-5.7.0 psycopg2-2.8.5 py-1.8.2 pyparsing-2.4.7 pytest-5.4.3 python-slugify-4.0.0 six-1.15.0 text-unidecode-1.3 topic-db-1.0.0 typed-ast-1.4.1 typed-tree-1.0.3 typing-extensions-3.7.4.2 wcwidth-0.2.4
Requirement already satisfied: topic-db>=1.0.0 in /root/.local/lib/python3.8/site-packages (from -r requirements.txt (line 1)) (1.0.0)
Collecting SQLAlchemy>=1.3.17
  Downloading SQLAlchemy-1.3.17.tar.gz (6.0 MB)
Collecting Flask>=1.1.2
  Downloading Flask-1.1.2-py2.py3-none-any.whl (94 kB)
Collecting Flask-SQLAlchemy>=2.4.3
  Downloading Flask_SQLAlchemy-2.4.3-py2.py3-none-any.whl (17 kB)
Collecting Flask-Security-Too>=3.4.2
  Downloading Flask_Security_Too-3.4.3-py2.py3-none-any.whl (185 kB)
Collecting flask-seasurf>=0.2.2
  Downloading Flask-SeaSurf-0.2.2.tar.gz (5.1 kB)
Collecting bcrypt>=3.1.7
  Downloading bcrypt-3.1.7.tar.gz (42 kB)
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'done'
    Preparing wheel metadata: started
    Preparing wheel metadata: finished with status 'done'
Collecting Werkzeug>=1.0.1
  Downloading Werkzeug-1.0.1-py2.py3-none-any.whl (298 kB)
Collecting maya>=0.6.1
  Downloading maya-0.6.1-py2.py3-none-any.whl (12 kB)
Collecting mistune==2.0.0a4
  Downloading mistune-2.0.0a4-py2.py3-none-any.whl (21 kB)
Requirement already satisfied: python-slugify>=4.0.0 in /root/.local/lib/python3.8/site-packages (from -r requirements.txt (line 11)) (4.0.0)
Collecting gunicorn>=20.0.4
  Downloading gunicorn-20.0.4-py2.py3-none-any.whl (77 kB)
Requirement already satisfied: mypy in /root/.local/lib/python3.8/site-packages (from topic-db>=1.0.0->-r requirements.txt (line 1)) (0.780)
Requirement already satisfied: psycopg2 in /root/.local/lib/python3.8/site-packages (from topic-db>=1.0.0->-r requirements.txt (line 1)) (2.8.5)
Requirement already satisfied: typed-tree in /root/.local/lib/python3.8/site-packages (from topic-db>=1.0.0->-r requirements.txt (line 1)) (1.0.3)
Requirement already satisfied: pytest in /root/.local/lib/python3.8/site-packages (from topic-db>=1.0.0->-r requirements.txt (line 1)) (5.4.3)
Requirement already satisfied: memory-profiler in /root/.local/lib/python3.8/site-packages (from topic-db>=1.0.0->-r requirements.txt (line 1)) (0.57.0)
Collecting Jinja2>=2.10.1
  Downloading Jinja2-2.11.2-py2.py3-none-any.whl (125 kB)
Collecting click>=5.1
  Downloading click-7.1.2-py2.py3-none-any.whl (82 kB)
Collecting itsdangerous>=0.24
  Downloading itsdangerous-1.1.0-py2.py3-none-any.whl (16 kB)
Collecting Flask-Principal>=0.4.0
  Downloading Flask-Principal-0.4.0.tar.gz (5.5 kB)
Collecting Flask-Mail>=0.9.1
  Downloading Flask-Mail-0.9.1.tar.gz (45 kB)
Collecting Flask-BabelEx>=0.9.3
  Downloading Flask_BabelEx-0.9.4-py3-none-any.whl (8.7 kB)
Collecting email-validator>=1.0.5
  Downloading email_validator-1.1.1-py2.py3-none-any.whl (17 kB)
Collecting passlib>=1.7.1
  Downloading passlib-1.7.2-py2.py3-none-any.whl (507 kB)
Collecting Flask-Login>=0.4.1
  Downloading Flask_Login-0.5.0-py2.py3-none-any.whl (16 kB)
Collecting Flask-WTF>=0.14.2
  Downloading Flask_WTF-0.14.3-py2.py3-none-any.whl (13 kB)
Requirement already satisfied: six>=1.4.1 in /root/.local/lib/python3.8/site-packages (from bcrypt>=3.1.7->-r requirements.txt (line 7)) (1.15.0)
Processing /root/.cache/pip/wheels/89/96/42/98fbfabb3fd5a7ea40a01dab70dcbdf5d78e4652b30dbf9f33/cffi-1.14.0-cp38-cp38-linux_aarch64.whl
Collecting tzlocal
  Downloading tzlocal-2.1-py2.py3-none-any.whl (16 kB)
Collecting dateparser>=0.7.0
  Downloading dateparser-0.7.6-py2.py3-none-any.whl (362 kB)
Collecting humanize
  Downloading humanize-2.4.0-py3-none-any.whl (62 kB)
Collecting pytz
  Downloading pytz-2020.1-py2.py3-none-any.whl (510 kB)
Collecting pendulum>=2.0.2
  Downloading pendulum-2.1.0.tar.gz (80 kB)
  Installing build dependencies: started
  Installing build dependencies: still running...
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'done'
    Preparing wheel metadata: started
    Preparing wheel metadata: finished with status 'done'
Collecting snaptime
  Downloading snaptime-0.2.4.tar.gz (2.9 kB)
Requirement already satisfied: text-unidecode>=1.3 in /root/.local/lib/python3.8/site-packages (from python-slugify>=4.0.0->-r requirements.txt (line 11)) (1.3)
Requirement already satisfied: setuptools>=3.0 in /usr/local/lib/python3.8/site-packages (from gunicorn>=20.0.4->-r requirements.txt (line 12)) (47.1.1)
Requirement already satisfied: mypy-extensions<0.5.0,>=0.4.3 in /root/.local/lib/python3.8/site-packages (from mypy->topic-db>=1.0.0->-r requirements.txt (line 1)) (0.4.3)
Requirement already satisfied: typing-extensions>=3.7.4 in /root/.local/lib/python3.8/site-packages (from mypy->topic-db>=1.0.0->-r requirements.txt (line 1)) (3.7.4.2)
Requirement already satisfied: typed-ast<1.5.0,>=1.4.0 in /root/.local/lib/python3.8/site-packages (from mypy->topic-db>=1.0.0->-r requirements.txt (line 1)) (1.4.1)
Requirement already satisfied: attrs>=17.4.0 in /root/.local/lib/python3.8/site-packages (from pytest->topic-db>=1.0.0->-r requirements.txt (line 1)) (19.3.0)
Requirement already satisfied: more-itertools>=4.0.0 in /root/.local/lib/python3.8/site-packages (from pytest->topic-db>=1.0.0->-r requirements.txt (line 1)) (8.4.0)
Requirement already satisfied: py>=1.5.0 in /root/.local/lib/python3.8/site-packages (from pytest->topic-db>=1.0.0->-r requirements.txt (line 1)) (1.8.2)
Requirement already satisfied: pluggy<1.0,>=0.12 in /root/.local/lib/python3.8/site-packages (from pytest->topic-db>=1.0.0->-r requirements.txt (line 1)) (0.13.1)
Requirement already satisfied: packaging in /root/.local/lib/python3.8/site-packages (from pytest->topic-db>=1.0.0->-r requirements.txt (line 1)) (20.4)
Requirement already satisfied: wcwidth in /root/.local/lib/python3.8/site-packages (from pytest->topic-db>=1.0.0->-r requirements.txt (line 1)) (0.2.4)
Requirement already satisfied: psutil in /root/.local/lib/python3.8/site-packages (from memory-profiler->topic-db>=1.0.0->-r requirements.txt (line 1)) (5.7.0)
Collecting MarkupSafe>=0.23
  Downloading MarkupSafe-1.1.1.tar.gz (19 kB)
Collecting blinker
  Downloading blinker-1.4.tar.gz (111 kB)
Collecting speaklater>=1.2
  Downloading speaklater-1.3.tar.gz (3.6 kB)
Collecting Babel>=1.0
  Downloading Babel-2.8.0-py2.py3-none-any.whl (8.6 MB)
Collecting dnspython>=1.15.0
  Downloading dnspython-1.16.0-py2.py3-none-any.whl (188 kB)
Collecting idna>=2.0.0
  Using cached idna-2.9-py2.py3-none-any.whl (58 kB)
Collecting WTForms
  Downloading WTForms-2.3.1-py2.py3-none-any.whl (169 kB)
Collecting pycparser
  Using cached pycparser-2.20-py2.py3-none-any.whl (112 kB)
Collecting python-dateutil
  Downloading python_dateutil-2.8.1-py2.py3-none-any.whl (227 kB)
Collecting regex!=2019.02.19
  Downloading regex-2020.6.8.tar.gz (690 kB)
Collecting pytzdata>=2018.3
  Downloading pytzdata-2019.3-py2.py3-none-any.whl (489 kB)
Requirement already satisfied: pyparsing>=2.0.2 in /root/.local/lib/python3.8/site-packages (from packaging->pytest->topic-db>=1.0.0->-r requirements.txt (line 1)) (2.4.7)
Building wheels for collected packages: SQLAlchemy, flask-seasurf, bcrypt, Flask-Principal, Flask-Mail, pendulum, snaptime, MarkupSafe, blinker, speaklater, regex
  Building wheel for SQLAlchemy (setup.py): started
  Building wheel for SQLAlchemy (setup.py): finished with status 'done'
  Created wheel for SQLAlchemy: filename=SQLAlchemy-1.3.17-cp38-cp38-linux_aarch64.whl size=1249337 sha256=be2e34459b88852c7309957fef6763b1358bcc5483466ea3e2ee63bc4c0cb191
  Stored in directory: /root/.cache/pip/wheels/5c/91/c7/fe37d2fa2e066dad548c0d3e131b2119222e6f77454bd19c13
  Building wheel for flask-seasurf (setup.py): started
  Building wheel for flask-seasurf (setup.py): finished with status 'done'
  Created wheel for flask-seasurf: filename=Flask_SeaSurf-0.2.2-py3-none-any.whl size=5562 sha256=3dd7aabc186dae2f69109bd2a759688cc5f65a5a5d66d5b89c5f3302c4c9cfdb
  Stored in directory: /root/.cache/pip/wheels/fe/5b/a9/07a4230f985c8423bc1af134e95c6e3ddac4f94fb154ebd853
  Building wheel for bcrypt (PEP 517): started
  Building wheel for bcrypt (PEP 517): finished with status 'done'
  Created wheel for bcrypt: filename=bcrypt-3.1.7-cp38-cp38-linux_aarch64.whl size=57679 sha256=11093329a6dc594759cee9e23ea945eb44c007c25b56b9d0a503d4a7107e264a
  Stored in directory: /root/.cache/pip/wheels/08/dd/04/63fe9a4002c36105c358f90221e4882825a264edb9d8554163
  Building wheel for Flask-Principal (setup.py): started
  Building wheel for Flask-Principal (setup.py): finished with status 'done'
  Created wheel for Flask-Principal: filename=Flask_Principal-0.4.0-py3-none-any.whl size=5573 sha256=f80e535ca8602a83a877ed280ad0b61cd9ebaf767bcc17076b9f2220be9e3a6b
  Stored in directory: /root/.cache/pip/wheels/8b/e7/dd/e6981d426247840129ba941a3031669cb6afcf018b0665b637
  Building wheel for Flask-Mail (setup.py): started
  Building wheel for Flask-Mail (setup.py): finished with status 'done'
  Created wheel for Flask-Mail: filename=Flask_Mail-0.9.1-py3-none-any.whl size=7568 sha256=d93bfac59e184a6fce486ee7451b2e35753cf08f9923d46a65511bcc647a4349
  Stored in directory: /root/.cache/pip/wheels/98/bc/8c/34c329e4d7efeaf7b9886db0c76d0b23170e54de443f688e3c
  Building wheel for pendulum (PEP 517): started
  Building wheel for pendulum (PEP 517): finished with status 'error'
  ERROR: Command errored out with exit status 1:
   command: /usr/local/bin/python /usr/local/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py build_wheel /tmp/tmpm7ceji7b
       cwd: /tmp/pip-install-lo3brvr1/pendulum
  Complete output (24 lines):
  Traceback (most recent call last):
    File "setup.py", line 2, in <module>
      from setuptools import setup
  ModuleNotFoundError: No module named 'setuptools'
  Traceback (most recent call last):
    File "/usr/local/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 280, in <module>
      main()
    File "/usr/local/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 263, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "/usr/local/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py", line 204, in build_wheel
      return _build_backend().build_wheel(wheel_directory, config_settings,
    File "/tmp/pip-build-env-bx8hjws8/overlay/lib/python3.8/site-packages/poetry/core/masonry/api.py", line 57, in build_wheel
      return unicode(WheelBuilder.make_in(poetry, Path(wheel_directory)))
    File "/tmp/pip-build-env-bx8hjws8/overlay/lib/python3.8/site-packages/poetry/core/masonry/builders/wheel.py", line 55, in make_in
      wb.build()
    File "/tmp/pip-build-env-bx8hjws8/overlay/lib/python3.8/site-packages/poetry/core/masonry/builders/wheel.py", line 81, in build
      self._build(zip_file)
    File "/tmp/pip-build-env-bx8hjws8/overlay/lib/python3.8/site-packages/poetry/core/masonry/builders/wheel.py", line 100, in _build
      self._run_build_command(setup)
    File "/tmp/pip-build-env-bx8hjws8/overlay/lib/python3.8/site-packages/poetry/core/masonry/builders/wheel.py", line 128, in _run_build_command
      subprocess.check_call(
    File "/usr/local/lib/python3.8/subprocess.py", line 364, in check_call
      raise CalledProcessError(retcode, cmd)
  subprocess.CalledProcessError: Command '['/usr/local/bin/python', 'setup.py', 'build', '-b', 'build']' returned non-zero exit status 1.
  ----------------------------------------
  ERROR: Failed building wheel for pendulum
  Building wheel for snaptime (setup.py): started
  Building wheel for snaptime (setup.py): finished with status 'done'
  Created wheel for snaptime: filename=snaptime-0.2.4-py3-none-any.whl size=3595 sha256=7d127d97f39e17cb75acafce648f852a01091da6dd477b1831d868a1ba3ffa33
  Stored in directory: /root/.cache/pip/wheels/ef/75/ba/deb00489e86fe8ed045887958363a3ddf664227d0bab7f03a2
  Building wheel for MarkupSafe (setup.py): started
  Building wheel for MarkupSafe (setup.py): finished with status 'done'
  Created wheel for MarkupSafe: filename=MarkupSafe-1.1.1-cp38-cp38-linux_aarch64.whl size=32806 sha256=294a532385b2e8af42b270f4cc3005415be981475a1bbeda153f06447e819efd
  Stored in directory: /root/.cache/pip/wheels/0c/61/d6/4db4f4c28254856e82305fdb1f752ed7f8482e54c384d8cb0e
  Building wheel for blinker (setup.py): started
  Building wheel for blinker (setup.py): finished with status 'done'
  Created wheel for blinker: filename=blinker-1.4-py3-none-any.whl size=13452 sha256=5b06b44bb2d90fe8c212ae68f091d8a557bc0f3c90bf85afa4185e19778f3e8e
  Stored in directory: /root/.cache/pip/wheels/b7/a5/68/fe632054a5eadd531c7a49d740c50eb6adfbeca822b4eab8d4
  Building wheel for speaklater (setup.py): started
  Building wheel for speaklater (setup.py): finished with status 'done'
  Created wheel for speaklater: filename=speaklater-1.3-py3-none-any.whl size=4701 sha256=62ffbb11c358b63a23f81849f4f107538bd45a1fa124cb867e062f9dd8ff6538
  Stored in directory: /root/.cache/pip/wheels/21/55/7d/8584d2943f1717b5b3bd9bb80cb49298266cf151ed3b9d8cc9
  Building wheel for regex (setup.py): started
  Building wheel for regex (setup.py): finished with status 'done'
  Created wheel for regex: filename=regex-2020.6.8-cp38-cp38-linux_aarch64.whl size=669056 sha256=370e7b9e6aec53538975d15d90d50609b65a3ffa10c0c2de2745567f95f416e4
  Stored in directory: /root/.cache/pip/wheels/92/a0/30/b02d3121ed2dba407862df81a4df87d3f605226e4d72cfd07f
Successfully built SQLAlchemy flask-seasurf bcrypt Flask-Principal Flask-Mail snaptime MarkupSafe blinker speaklater regex
Failed to build pendulum
ERROR: Could not build wheels for pendulum which use PEP 517 and cannot be installed directly
ERROR: Service 'web' failed to build: The command '/bin/sh -c pip install --user git+https://github.com/brettkromkamp/topic-db.git  && pip install --user -r requirements.txt' returned a non-zero code: 1
ubuntu@ubuntu:/nashome/householdpi/contextualize-docker-configs/contextualise$ 

I see a proposed work-around here but I haven’t yet managed to rejigger the FROM clause in the Dockerfile to make the fix work yet so I thought I’d also mention it here 😃

[feoh]

I got it to work with this Dockerfile. I can generate a pull request if anyone likes. I won’t do it un-asked since it’s a bit of a departure from what’s already there.

FROM python:3-alpine

# Metadata
LABEL \
  app.name="Contextualise" \
  app.description="A simple and flexible tool particularly suited for organising information-heavy projects and activities consisting of unstructured and widely diverse data and information resources" \
  app.license="MIT License" \
  app.license.url="https://github.com/brettkromkamp/contextualise/blob/master/LICENSE" \
  app.repo.url="https://github.com/brettkromkamp/contextualise" \
  app.authors="Brett Kromkamp <@brettkromkamp>"

RUN apk update \
    && apk add gcc musl-dev python3-dev py3-setuptools libffi libffi-dev openssl-dev git postgresql-dev \
    && pip3 install poetry \
    && pip3 install --no-build-isolation pendulum==2.1.0


# Fetch just the dependencies, caches on the contents of requirements.txt
WORKDIR /usr/src/app
COPY ./requirements.txt ./
RUN pip install --user git+https://github.com/brettkromkamp/topic-db.git \
 && pip install --user -r requirements.txt

# Copy in the rest of the project and dependencies
COPY . .
RUN test -f settings.ini || cp settings-docker-sample.ini settings.ini

# Config for python and the app
ENV \
  PYTHONUNBUFFERED=1 \
  PYTHONDONTWRITEBYTECODE=1 \
  FLASK_APP=contextualise \
  FLASK_ENV=production \
  PATH=$PATH:/root/.local/bin

# Execute via gunicorn by default
CMD ["gunicorn", "-b", "0.0.0.0:5000", "contextualise.wsgi:app"]
EXPOSE 5000

[feoh]

I don’t understand enough about the alternative solutions people are suggesting to implement them, and I have something that works and left a crumb trail for anyone who just needs a quick fix to get this running on a pi, so I’ll yield to your greater expertise and close this 😃