I've been trying to setup a runner on my aws ec2 instance, follow installation steps and register the runner, everything seems fine except that when trying to build and push my image I'm getting: ``` Using Docker executor with image docker:latest ... Pulling docker image docker:dind ... Starting service docker:dind ... Waiting for services to be up and running... *** WARNING: Service runner-0da6f169-project-1533741-concurrent-0-docker probably didn't start properly. API error (500): Cannot link to a non running container: /runner-0da6f169-project-1533741-concurrent-0-docker AS /runner-0da6f169-project-1533741-concurrent-0-docker-wait-for-service/runner-0da6f169-project-1533741-concurrent-0-docker 2016-08-31T03:33:15.733979873Z mount: mounting none on /sys/kernel/security failed: Permission denied 2016-08-31T03:33:15.734002602Z Could not mount /sys/kernel/security. 2016-08-31T03:33:15.734006887Z AppArmor detection and --privileged mode might break. 2016-08-31T03:33:15.734604225Z mount: mounting none on /tmp failed: Permission denied ********* Pulling docker image docker:latest ... Running on runner-0da6f169-project-1533741-concurrent-0 via ip-172-31-50-171... Fetching changes... HEAD is now at 83af5d7 Removing dind from gitlab-ci.yml From https://gitlab.com/appoptimista/optimista-web 83af5d7..736bc6d master -> origin/master Checking out 736bc6dd as master... Checking cache for build... $ source ci/prepare $ docker info Cannot connect to the Docker daemon. Is the docker daemon running on this host? ERROR: Build failed: exit code 1 ``` I follow these steps https://about.gitlab.com/2016/04/19/how-to-set-up-gitlab-runner-on-digitalocean/ with exception of the Digital Ocean setup, my EC2 instance is an Ubuntu t2.micro . I'm able to run docker info on the ec2 instance and it's ok. Here's my gitlab-ci.yml file: ``` image: docker:latest services: - docker:dind variables: DOCKER_DRIVER: overlay cache: key: "$CI_BUILD_NAME" paths: - node_modules/ stages: - build before_script: - source ci/prepare build: stage: build script: - docker info - docker_build_push $CI_BUILD_SHA ``` Is there a missing step or something that I need to take into account ?