Add cryptography to the base image

.gitlab-ci.yml

-image: registry.gitlab.com/arkindex/backend:base-0.9.4
+image: registry.gitlab.com/arkindex/backend:base-0.9.6
 stages:
   - test
   - build
@@ -8,7 +8,7 @@ cache:
     - .cache/pip
 
 before_script:
-  - apk --update add build-base libffi-dev openssl-dev
+  - apk --update add build-base
   # Custom line to install our own deps from Git using GitLab CI credentials
   - "pip install -e git+https://gitlab-ci-token:${CI_JOB_TOKEN}@gitlab.com/arkindex/common#egg=arkindex-common"
   - "pip install -e git+https://gitlab-ci-token:${CI_JOB_TOKEN}@gitlab.com/arkindex/ponos#egg=ponos-server"

Dockerfile

-FROM registry.gitlab.com/arkindex/backend:base-0.9.4
+FROM registry.gitlab.com/arkindex/backend:base-0.9.6
 
 ARG COMMON_BRANCH=master
 ARG COMMON_ID=9855787

base/Dockerfile

@@ -3,7 +3,7 @@ FROM python:3.6-alpine as base
 FROM base as staging
 
 # Add system dependencies, use cache by copying requirements
-RUN apk add --update --no-cache postgresql-dev jpeg-dev build-base gzip zlib-dev libmagic libxml2-dev libxslt-dev
+RUN apk add --update --no-cache postgresql-dev jpeg-dev build-base gzip zlib-dev libmagic libxml2-dev libxslt-dev libffi-dev
 
 # Install long buildtime deps
 # Uses a source archive instead of full local copy to speedup docker build

base/requirements.txt

+cryptography>=2.7
 Django==2.2
 elasticsearch==6.2.0
 ijson==2.3