GITLAB_RUNNER. ERROR: registering runner.. failed

@sameersbn @panosoft @mikew
hi, first of all to thank you for this community and for the contribution you make to the informatics.
My problem is this, I'm working with docker-gitlab sameersbn: 8.16.6, postgresql:9.6-2, redis:latest, registry:2.5, nginx. All working properly as far as I could see but I have configured gitlab-runner:latest for continuous integration and I got the following error when registering a runner for gitlab: "ERROR: Registering runner... failed runner=xrz3LPZ status=couldn't execute POST against https://localhost:10443/ci/api/v1/runners/register.json: Post https://localhost:10443/ci/api/v1/runners/register.json: dial tcp [::1]:10443: getsockopt: connection refused
PANIC: Failed to register this runner. Perhaps you are having network problems "_.
I do not know if something in my configuration is wrong or something is missing to configure for this to work, please I need help this is very important for the project.
Then I describe my working environment together with my configuration file docker-compose.yml.

docker version:

Docker version 17.03.0-ce, build 60ccb22

docker compose version:

docker-compose version 1.11.2, build dfed245

docker-compose.yml

version: '2'

networks:
  lb_web:
    external: true
  back:
    driver: bridge


services:
  redis:
    restart: always
    image: sameersbn/redis:latest
    container_name: redis
    command:
    - --loglevel warning
    volumes:
    - /srv/docker/gitlab/redis:/var/lib/redis:Z
    networks:
    - back

  postgresql:
    restart: always
    image: sameersbn/postgresql:9.6-2
    container_name: postgresql
    volumes:
    - /srv/docker/gitlab/postgresql:/var/lib/postgresql:Z
    environment:
    - DB_USER=gitlab
    - DB_PASS=password
    - DB_NAME=gitlabhq_production
    - DB_EXTENSION=pg_trgm
    networks:
    - back

  gitlab:
    restart: always
    image: sameersbn/gitlab:8.16.6
    container_name: gitlab
    depends_on:
    - redis
    - postgresql
    external_links: 
    - registry:registry.localhost
    expose:
        - "80"
    ports:
    - "10022:22"
    - "10443:443"
    - "5005:5005"
    volumes:
    - /srv/docker/gitlab/gitlab:/home/git/data:Z
    - /srv/docker/gitlab/gitlab/certs:/home/git/data/certs
    - /srv/docker/gitlab/logs:/var/log/gitlab
    - /var/run/docker.sock:/var/run/docker.sock
    hostname: localhost
    environment:   
    - DEBUG=false

    - DB_ADAPTER=postgresql
    - DB_HOST=postgresql
    - DB_PORT=5432
    - DB_USER=gitlab
    - DB_PASS=password
    - DB_NAME=gitlabhq_production

    - REDIS_HOST=redis
    - REDIS_PORT=6379

    - TZ=America/Los_Angeles
    - GITLAB_TIMEZONE=America/Los_Angeles

    - GITLAB_HTTPS=true
    - SSL_SELF_SIGNED=true

    - GITLAB_HOST=localhost
    - GITLAB_PORT=10443
    - GITLAB_SSH_PORT=10022
    - GITLAB_RELATIVE_URL_ROOT=
    - GITLAB_SECRETS_DB_KEY_BASE=xxxxxxxx
    - GITLAB_SECRETS_SECRET_KEY_BASE=xxxxxxx
    - GITLAB_SECRETS_OTP_KEY_BASE=xxxxxx
    - GITLAB_ROOT_PASSWORD=xxxxx
    - GITLAB_ROOT_EMAIL=xxxx@gmail.com

    - GITLAB_NOTIFY_ON_BROKEN_BUILDS=true
    - GITLAB_NOTIFY_PUSHER=true


    - GITLAB_EMAIL=xxxxx@gmail.com
    - GITLAB_EMAIL_REPLY_TO=xxxxxx@gmail.com
    - GITLAB_INCOMING_EMAIL_ADDRESS=xxxxxx@gmail.com

    - GITLAB_BACKUP_SCHEDULE=daily
    - GITLAB_BACKUP_TIME=01:00

    - SMTP_ENABLED=true
    - SMTP_DOMAIN=www.gmail.com
    - SMTP_HOST=smtp.gmail.com
    - SMTP_PORT=587
    - SMTP_USER=xxxxx@gmail.com
    - SMTP_PASS=password
    - SMTP_STARTTLS=true
    - SMTP_AUTHENTICATION=login

    - IMAP_ENABLED=true
    - IMAP_HOST=imap.gmail.com
    - IMAP_PORT=993
    - IMAP_USER=xxxx@gmail.com
    - IMAP_PASS=password
    - IMAP_SSL=true
    - IMAP_STARTTLS=
    
    - VIRTUAL_HOST=localhost

    - SSL_CERTIFICATE_PATH=/home/git/data/certs/gitlab.crt
    - SSL_KEY_PATH =/home/git/data/certs/gitlab.key

    - SSL_CA_CERTIFICATES_PATH=/home/git/data/certs/gitlab.crt
    
    - SSL_DHPARAM_PATH=/home/git/data/certs/dhparam.pem

    - GITLAB_REPOS_DIR=/home/git/data/repositories
    - GITLAB_BACKUP_DIR=/home/git/data/backups
    - GITLAB_SHARED_DIR=/home/git/data/shared
    - GITLAB_BUILDS_DIR=/home/git/data/builds
    - GITLAB_ARTIFACTS_DIR=/home/git/data/shared/artifacts

    - GITLAB_PROJECTS_CONTAINER_REGISTRY=true
    - GITLAB_REGISTRY_DIR=/home/git/data/shared/registry

    - GITLAB_REGISTRY_ENABLED=true
    - GITLAB_REGISTRY_HOST=registry.localhost
    - GITLAB_REGISTRY_PORT=5005
    - GITLAB_REGISTRY_API_URL=http://registry.localhost:5000
    
    - GITLAB_REGISTRY_CERT_PATH=/home/git/data/certs/registry.crt
    - GITLAB_REGISTRY_KEY_PATH=/home/git/data/certs/registry.key
    - GITLAB_REGISTRY_ISSUER=gitlab-issuer

    - SSL_REGISTRY_KEY_PATH=/home/git/data/certs/registry.key
    - SSL_REGISTRY_CERT_PATH=/home/git/data/certs/registry.crt
    

    networks:
    - back
    - lb_web

  registry:
    restart: always
    image: registry:2.5
    container_name: registry
    volumes:
        - /srv/docker/registry:/registry
        - /srv/docker/gitlab/gitlab/certs:/home/git/data/certs
    ports:
        - "5000:5000"
    external_links:
        - "gitlab:localhost"
    environment:
        - REGISTRY_LOG_LEVEL=info
        - REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY=/registry
        - REGISTRY_AUTH_TOKEN_REALM=https://localhost:10443/jwt/auth
        - REGISTRY_AUTH_TOKEN_SERVICE=container_registry
        - REGISTRY_AUTH_TOKEN_ISSUER=gitlab-issuer
        - REGISTRY_AUTH_TOKEN_ROOTCERTBUNDLE=/home/git/data/certs/registry.crt
        - REGISTRY_STORAGE_DELETE_ENABLED=true

        - REGISTRY_HTTP_SECRET=xxxxxx
    networks:
        - back

  nginx:
    restart: always
    image: nginx
    container_name: nginx
    links:
        - registry
    volumes:
        - /srv/docker/nginx/nginx.conf:/etc/nginx/nginx.conf    
    environment:
        - VIRTUAL_HOST=registry.localhost
        - REGISTRY_HTTP_RELATIVEURLS=true  
    networks:
        - back
        - lb_web

  gitlab-runner:
    restart: always
    image: gitlab/gitlab-runner:latest
    container_name: gitlab-runner
    volumes:
        - /srv/gitlab-runner/config:/etc/gitlab-runner
        - /var/run/docker.sock:/var/run/docker.sock
        - /srv/docker/gitlab/gitlab/certs:/etc/gitlab-runner/certs
    environment:
        - CA_CERTIFICATES_PATH=/home/git/data/certs/gitlab.crt
    networks:
        - back

Thanks in advance, any help and comment is welcome.

Start with docker-compose.yml, focusing on the gitlab and gitlab-runner service definitions, their networks, ports, hostname, and certificate mounts. Check the registration endpoint from the runner container and verify the configuration against the reported Docker and Compose versions. Done means the runner registers with GitLab without the connection-refused error.