🐳 Update Poetry install to avoid env conflicts

Author: tiangolo

{{cookiecutter.project_slug}}/backend/backend.dockerfile

@@ -3,7 +3,10 @@ FROM tiangolo/uvicorn-gunicorn-fastapi:python3.7
 WORKDIR /app/
 
 # Install Poetry
-RUN pip install --no-cache-dir poetry && poetry config virtualenvs.create false
+RUN curl -sSL https://github.com/raw/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+    cd /usr/local/bin && \
+    ln -s /opt/poetry/bin/poetry && \
+    poetry config virtualenvs.create false
 
 # Copy poetry.lock* in case it doesn't exist in the repo
 COPY ./app/pyproject.toml ./app/poetry.lock* /app/

{{cookiecutter.project_slug}}/backend/celeryworker.dockerfile

@@ -3,7 +3,10 @@ FROM python:3.7
 WORKDIR /app/
 
 # Install Poetry
-RUN pip install --no-cache-dir poetry && poetry config virtualenvs.create false
+RUN curl -sSL https://github.com/raw/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+    cd /usr/local/bin && \
+    ln -s /opt/poetry/bin/poetry && \
+    poetry config virtualenvs.create false
 
 # Copy poetry.lock* in case it doesn't exist in the repo
 COPY ./app/pyproject.toml ./app/poetry.lock* /app/

{{cookiecutter.project_slug}}/backend/tests.dockerfile

@@ -3,7 +3,10 @@ FROM python:3.7
 WORKDIR /app/
 
 # Install Poetry
-RUN pip install --no-cache-dir poetry && poetry config virtualenvs.create false
+RUN curl -sSL https://github.com/raw/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+    cd /usr/local/bin && \
+    ln -s /opt/poetry/bin/poetry && \
+    poetry config virtualenvs.create false
 
 # Copy poetry.lock* in case it doesn't exist in the repo
 COPY ./app/pyproject.toml ./app/poetry.lock* /app/