feat: Split and improve contract migration steps

apps/cic-ussd/docker/Dockerfile

@@ -1,6 +1,8 @@
-# syntax = docker/dockerfile:1.2
-FROM registry.gitlab.com/grassrootseconomics/cic-base-images:python-3.8.6-dev-55da5f4e as dev
-RUN apt-get install -y redis-server
+ARG DOCKER_REGISTRY="registry.gitlab.com/grassrootseconomics"
+
+FROM $DOCKER_REGISTRY/cic-base-images:python-3.8.6-dev-55da5f4e
+
+RUN apt-get install redis-server libffi-dev -y
 # create secrets directory
 RUN mkdir -vp pgp/keys
 
@@ -8,28 +10,27 @@ RUN mkdir -vp pgp/keys
 RUN mkdir -vp cic-ussd
 RUN mkdir -vp data
 
-ARG EXTRA_INDEX_URL="https://pip.grassrootseconomics.net:8433"
-ARG GITLAB_PYTHON_REGISTRY="https://gitlab.com/api/v4/projects/27624814/packages/pypi/simple"
+ARG EXTRA_PIP_INDEX_URL=https://pip.grassrootseconomics.net:8433
+ARG EXTRA_PIP_ARGS=""
+ARG PIP_INDEX_URL=https://pypi.org/simple
 
-RUN --mount=type=cache,mode=0755,target=/root/.cache/pip \
-    pip install --index-url https://pypi.org/simple  \
-	  --extra-index-url $GITLAB_PYTHON_REGISTRY \
-    --extra-index-url $EXTRA_INDEX_URL \
-    cic-eth-aux-erc20-demurrage-token~=0.0.2a6
+RUN    pip install --index-url $PIP_INDEX_URL \
+    --extra-index-url $EXTRA_PIP_INDEX_URL $EXTRA_PIP_ARGS \
+        cic-eth-aux-erc20-demurrage-token~=0.0.2a7
 
-COPY requirements.txt .
 
-RUN --mount=type=cache,mode=0755,target=/root/.cache/pip \
-    pip install --index-url https://pypi.org/simple  \
-	  --extra-index-url $GITLAB_PYTHON_REGISTRY --extra-index-url $EXTRA_INDEX_URL \
-    -r requirements.txt
+COPY *requirements.txt ./
+RUN    pip install --index-url $PIP_INDEX_URL \
+    --extra-index-url $EXTRA_PIP_INDEX_URL $EXTRA_PIP_ARGS \
+    -r requirements.txt 
+
 
 COPY . .
 RUN python setup.py install
 
 COPY cic_ussd/db/ussd_menu.json data/
 
-COPY docker/*.sh .
+COPY docker/*.sh ./
 RUN chmod +x /root/*.sh
 
 # copy config and migration files to definitive file so they can be referenced in path definitions for running scripts