### Summary Kubernetes integration does not work in gitlab runner image entrypoint. ### Steps to reproduce A base image for gitlab runner job that is build from the Dockerfile: ```docker FROM alpine:3.9 RUN apk add --no-cache --virtual .runtime-utils curl bash git make ENV KUBECTL_VERSION v1.14.2 RUN set -ex \ && curl -sSL https://storage.googleapis.com/kubernetes-release/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl -o /usr/local/bin/kubectl \ && chmod +x /usr/local/bin/kubectl COPY docker-entrypoint.sh /opt/ci/ ENTRYPOINT ["/opt/ci/docker-entrypoint.sh"] ``` `docker-entrypoint.sh`, contains the following script: ```bash #!/usr/bin/env bash set -euo pipefail echo "--> kubectl version" kubectl version exec "$@" exit $? ``` `kubectl version` shows both local kubectl tool version as well as the server version. To get server version, it connects to the server with credentials that should be prepared by GitLab Kubernetes integration. `.gitlab-ci.yml` looks like this: ```yaml stages: - debug debug: stage: debug image: ${CI_IMAGE} # image build from Dockerfile above script: - echo "Ok" environment: name: dev ``` This job fails with the message: ``` # ... section_start:1559767529:build_script --> kubectl version Error loading config file " LS0tLS1CRUdJTiBDRVJUS... contexts": open LS0tLS1CRUdJTiBDRVJUS... contexts: file name too long Error loading config file " [MASKED] ": open [MASKED] : file name too long section_end:1559767531:build_script # ... ``` It outputs the full Kubernetes CA certificate (I replaced it with `LS0tLS1CRUdJTiBDRVJUS...` it for brevity). Note that if we remove `kubectl version` command from the Docker entrypoint, and put it into the `script` section to `.gitlab-ci.yaml` like this: ```yaml stages: - debug debug: stage: debug image: ${CI_IMAGE} # image build from Dockerfile above script: - kubectl version environment: name: dev ``` Then everything works just fine (which means Kubernetes integration works fine in this case). ### What is the current *bug* behavior? Script in Docker entrypoint of the gitlab runner base image is not geting proper kubeconfig to connect to the Kubernetes. ### What is the expected *correct* behavior? GitLab Kubernetes integration should provide correct kubeconfig to the Docker entrypoint script. ### Other info I'm using hosted gitlab.com.