Install a SSH client in the CI Docker image.

.gitlab-ci.yml

@@ -1,5 +1,5 @@
 ---
-image: s3lph/matemat-ci:20180711-01
+image: s3lph/matemat-ci:20180711-02
 
 stages:
 - test
@@ -30,7 +30,8 @@ build:
 staging:
   stage: staging
   script:
-  - ssh add - <<<"$STAGING_SSH_PRIVATE_KEY"
+  - eval $(ssh-agent -s)
+  - ssh-add - <<<"$STAGING_SSH_PRIVATE_KEY"
   - echo "$(git rev-parse HEAD)" | ssh -p 20022 matemat@kernelpanic.lol
   environment:
     name: staging

testing/Dockerfile

@@ -5,7 +5,7 @@ RUN useradd -d /home/matemat -m matemat
 RUN mkdir -p /var/matemat/db && chown matemat:matemat -R /var/matemat/db
 RUN mkdir -p /var/matemat/upload && chown matemat:matemat -R /var/matemat/upload
 RUN apt-get update -qy
-RUN apt-get install -y --no-install-recommends sudo git docker.io python3-dev python3-pip python3-coverage python3-setuptools build-essential
+RUN apt-get install -y --no-install-recommends sudo openssh-client git docker.io python3-dev python3-pip python3-coverage python3-setuptools build-essential
 RUN pip3 install wheel pycodestyle mypy
 
 WORKDIR /home/matemat