Add ssh key as file in gitlab settings

.gitlab-ci.yml

@@ -42,7 +42,7 @@ cache:
   - echo "Configure ssh agent"
   - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
   - eval $(ssh-agent -s)
-  - ssh-add <(echo "$SSH_PRIVATE_KEY")
+  - ssh-add $SSH_PRIVATE_KEY
   - mkdir -p ~/.ssh
   - '[[ -f /.dockerenv ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config'