457 deployment bug in staging (#460)

* Patch bug causing deployment to fail with Poetry version > 1.3.0

* Patch linting issues caused by alpine

* Fixed rewriting of download location of poetry

* Bring dev image to same pattern format as staging

dev/django.dockerfile

@@ -5,12 +5,16 @@ ENV PYTHONDONTWRITEBYTECODE 1
 ENV PYTHONUNBUFFERED=1
 WORKDIR /code
 
+#Download Poetry into Path
+ENV POETRY_HOME=/usr/local/poetry
+ENV PATH="$POETRY_HOME/bin:${PATH}"
+
 # Set up shell for pipe
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
 # Download Poetry into Path
-RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/opt/poetry python3 -
-ENV PATH=/opt/poetry/bin:$PATH
+# shellcheck disable=SC2034
+RUN curl -sSL https://install.python-poetry.org | POETRY_VERSION=1.3.0 python3 -
 
 # Download dependencies
 COPY pyproject.toml ./

stage/Dockerfile

@@ -23,13 +23,14 @@ ENV POETRY_HOME=/usr/local/poetry
 ENV PATH="$POETRY_HOME/bin:${PATH}"
 
 # Set up shell for pipe
-SHELL ["/bin/sh", "-o", "pipefail", "-c"]
+SHELL ["/bin/ash", "-eo", "pipefail", "-c"]
 
 # hadolint ignore=DL3018
 RUN apk update && apk add --no-cache curl gcc musl-dev libffi-dev jq
-# I could not make the linter accept 4006, so I will put this here. Whoever is interested should find a way to resolve this without ignoring. 
-# hadolint ignore=DL4006
-RUN curl -sSL https://install.python-poetry.org | python3 -
+
+# Disabling shellcheck SC2034 because it considers the unused variables POETRY_HOME and POETRY_VERSION as a bug
+# shellcheck disable=SC2034
+RUN curl -sSL https://install.python-poetry.org | POETRY_VERSION=1.3.0 python3 -
 
 COPY backend/pyproject.toml .
 COPY backend/poetry.lock .