add libressl and libffi

.gitlab-ci.yml

@@ -3,7 +3,7 @@ before_script:
 
 build python2.7:
   script:
-    - docker build -t errorist/py:2.7 .
+    - docker build --pull -t errorist/py:2.7 .
     - docker tag -f errorist/py:2.7 hub.errorist.xyz/py:2.7
     - docker push hub.errorist.xyz/py:2.7
   tags:

Dockerfile

@@ -7,7 +7,7 @@ ADD pip.conf /etc/pip.conf
 RUN python -m pip install pytest pytest-cov pytest-flake8
 RUN python -m pip install pyyaml
 RUN apk add --no-cache autoconf gcc libc-dev
-RUN apk add --no-cache --virtual build-dependencies gmp-dev python-dev
+RUN apk add --no-cache --virtual build-dependencies gmp-dev python-dev libffi-dev libressl-dev
 RUN python -m pip install paramiko
 RUN apk del build-dependencies
 RUN mkdir -p /root/.ssh \