gitlab autodeploy to kubernetes/openshift: error: no match for “:master”

I'm trying to handle kubernetes (openshift origin) autodeploy. ci-config is below.

As far as I understand CI should get the code, check for a dockerfile, if it is not present (and it is not) — build herokuish container and push it to kubernetes. But I get an error:

    $ command deploy
    Generating kubeconfig...
    Cluster "gitlab-deploy" set.
    User "gitlab-deploy" set.
    Context "gitlab-deploy" set.
    Switched to context "gitlab-deploy".
    
    Running on OpenShift.
    Deleting old application...
    No resources found
    
    Creating application...
    error: no match for ":master"

CI (build step is omitted consciously, it's presence doesn't change anything):

    # Explanation on the scripts:
    # https://gitlab.com/gitlab-examples/openshift-deploy/blob/master/README.md
    image: registry.gitlab.com/gitlab-examples/openshift-deploy
    services:
      - mysql:5.7
    variables:
      # Application deployment domain
      KUBE_DOMAIN: kub.myopenshift.com
      MYSQL_DATABASE: database
      MYSQL_ROOT_PASSWORD: secret
    cache:
      key: "$CI_BUILD_REF_NAME"
      untracked: true
      paths:
        - vendor/
        - .env
    stages:
      #- build
      #- test
      - review
      - staging
      - production
      - cleanup
    #build:
    #  stage: build
    #  script:
    #    - composer install --ignore-platform-reqs
    #    - cp .env.testing .env
    #  only:
    #    - branches
    #test:
    #  stage: test
    #  script:
    #    - php vendor/bin/phpunit --colors
    #  only:
    #    - branches
    production:
      stage: production
      variables:
        CI_ENVIRONMENT_URL: http://$CI_PROJECT_NAME.$KUBE_DOMAIN
      script:
        - command deploy
      environment:
        name: production
        url: http://$CI_PROJECT_NAME.$KUBE_DOMAIN
      when: manual
      only:
        - master
    staging:
      stage: staging
      variables:
        CI_ENVIRONMENT_URL: http://$CI_PROJECT_NAME-staging.$KUBE_DOMAIN
      script:
        - command deploy
      environment:
        name: staging
        url: http://$CI_PROJECT_NAME-staging.$KUBE_DOMAIN
      only:
        - master
    review:
      stage: review
      variables:
        CI_ENVIRONMENT_URL: http://$CI_PROJECT_NAME-$CI_ENVIRONMENT_SLUG.$KUBE_DOMAIN
      script:
        - command deploy
      environment:
        name: review/$CI_COMMIT_REF_NAME
        url: http://$CI_PROJECT_NAME-$CI_ENVIRONMENT_SLUG.$KUBE_DOMAIN
        on_stop: stop_review
      only:
        - branches
      except:
        - master
    stop_review:
      stage: cleanup
      variables:
        GIT_STRATEGY: none
      script:
        - command destroy
      environment:
        name: review/$CI_COMMIT_REF_NAME
        action: stop
      when: manual
      only:
        - branches
      except:
        - master

PS very, very little amount of information in docs and tutorials about autodeploy feature :(