Update Poetry installs for Python 3.10

python-poetry/poetry#3706
python-poetry/poetry#3870
python-poetry/poetry#4056

Poetry has a new install script, added in python-poetry/poetry#3706.
The old get-poetry.py install script is not compatible with Python 3.10,
so the new install-poetry.py script will be used.

Docker builds and GitHub Actions workflows will be updated to use
`POETRY_HOME=/opt/poetry` consistently.

As of Poetry 1.1.7, there may be complications in Docker when using
install-poetry.py without venvs (`POETRY_VIRTUALENVS_CREATE=false`).
While installing dependencies, the following error is frequently seen:

```text
OSError

Could not find a suitable TLS CA certificate bundle, invalid path:
/opt/poetry/venv/lib/python3.9/site-packages/certifi/cacert.pem

at /opt/poetry/venv/lib/python3.9/site-packages/requests/adapters.py:227
in cert_verify
```

Poetry may be incorrectly attempting to read from its virtualenv if it's
not respecting `POETRY_VIRTUALENVS_CREATE` (python-poetry/poetry#3870).
Downstream steps also do not respect `POETRY_VIRTUALENVS_CREATE`, so the
application does not run.

.github/workflows/builds.yml

@@ -15,6 +15,7 @@ jobs:
       matrix:
         python-version: [3.8, 3.9, "3.10.0-beta - 3.10"]
     env:
+      POETRY_HOME: /opt/poetry
       POETRY_VIRTUALENVS_CREATE: false
     steps:
       - uses: actions/checkout@v2
@@ -37,10 +38,10 @@ jobs:
           restore-keys: ${{ runner.os }}-pre-commit-
       - name: Install Poetry
         run: |
-          curl -fsS -o get-poetry.py \
-            https://raw.githubusercontent.com/python-poetry/poetry/HEAD/get-poetry.py
-          python get-poetry.py -y
-          echo "$HOME/.poetry/bin" >> $GITHUB_PATH
+          curl -fsS -o install-poetry.py \
+            https://raw.githubusercontent.com/python-poetry/poetry/HEAD/install-poetry.py
+          python install-poetry.py -y
+          echo "$POETRY_HOME/bin" >> $GITHUB_PATH
       - name: Install dependencies
         run: poetry install --no-interaction -E fastapi
       - name: Run pre-commit hooks

.github/workflows/hooks.yml

@@ -13,6 +13,7 @@ jobs:
       matrix:
         python-version: [3.8, 3.9, "3.10.0-beta - 3.10"]
     env:
+      POETRY_HOME: /opt/poetry
       POETRY_VIRTUALENVS_CREATE: false
     steps:
       - uses: actions/checkout@v2
@@ -35,9 +36,9 @@ jobs:
           restore-keys: ${{ runner.os }}-pre-commit-
       - name: Install Poetry
         run: |
-          curl -fsS -o get-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/HEAD/get-poetry.py
-          python get-poetry.py -y
-          echo "$HOME/.poetry/bin" >> $GITHUB_PATH
+          curl -fsS -o install-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/HEAD/install-poetry.py
+          python install-poetry.py -y
+          echo "$POETRY_HOME/bin" >> $GITHUB_PATH
       - name: Install dependencies
         run: poetry install --no-interaction -E fastapi
       - name: Run pre-commit hooks

.github/workflows/tests.yml

@@ -17,6 +17,7 @@ jobs:
       matrix:
         python-version: [3.8, 3.9, "3.10.0-beta - 3.10"]
     env:
+      POETRY_HOME: /opt/poetry
       POETRY_VIRTUALENVS_CREATE: false
     steps:
       - uses: actions/checkout@v2
@@ -32,9 +33,9 @@ jobs:
           restore-keys: ${{ runner.os }}-poetry-
       - name: Install Poetry
         run: |
-          curl -fsS -o get-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/HEAD/get-poetry.py
-          python get-poetry.py -y
-          echo "$HOME/.poetry/bin" >> $GITHUB_PATH
+          curl -fsS -o install-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/HEAD/install-poetry.py
+          python install-poetry.py -y
+          echo "$POETRY_HOME/bin" >> $GITHUB_PATH
       - name: Install dependencies
         run: poetry install --no-interaction -E fastapi
       - name: Run unit tests

Dockerfile

@@ -6,19 +6,19 @@ LABEL org.opencontainers.image.licenses="MIT"
 LABEL org.opencontainers.image.source="https://github.com/br3ndonland/inboard"
 LABEL org.opencontainers.image.title="inboard"
 LABEL org.opencontainers.image.url="https://github.com/users/br3ndonland/packages/container/package/inboard"
-ENV APP_MODULE=inboard.app.main_base:app POETRY_HOME=/opt/poetry POETRY_VIRTUALENVS_CREATE=false PYTHONPATH=/app
+ENV APP_MODULE=inboard.app.main_base:app PATH=/opt/poetry/bin:$PATH POETRY_HOME=/opt/poetry POETRY_VIRTUALENVS_CREATE=false PYTHONPATH=/app
 COPY poetry.lock pyproject.toml /app/
 WORKDIR /app/
-RUN curl -fsS -o get-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/HEAD/get-poetry.py && \
-  python get-poetry.py -y && . $POETRY_HOME/env && poetry install --no-dev --no-interaction --no-root
+RUN curl -fsS -o install-poetry.py https://raw.githubusercontent.com/python-poetry/poetry/HEAD/install-poetry.py && \
+  python install-poetry.py -y && poetry install --no-dev --no-interaction --no-root
 COPY inboard /app/inboard
 ENTRYPOINT ["python"]
 CMD ["-m", "inboard.start"]
 
 FROM base AS fastapi
-ENV APP_MODULE=inboard.app.main_fastapi:app PATH=$POETRY_HOME/bin:$PATH
+ENV APP_MODULE=inboard.app.main_fastapi:app
 RUN poetry install --no-dev --no-interaction --no-root -E fastapi
 
 FROM base AS starlette
-ENV APP_MODULE=inboard.app.main_starlette:app PATH=$POETRY_HOME/bin:$PATH
+ENV APP_MODULE=inboard.app.main_starlette:app
 RUN poetry install --no-dev --no-interaction --no-root -E starlette