您的重定向操作符正在主机上运行，​​而不是在容器内部.在下面更改

Your redirection operator is working on host and not inside your container. Change below

$ /usr/bin/docker exec -t $CI_PROJECT_NAME echo $KUBE_ADMIN_ACCOUNT > /opt/application/conf/kubeadminaccount.yml

到

$ /usr/bin/docker exec -t $CI_PROJECT_NAME bash -c "echo $KUBE_ADMIN_ACCOUNT > /opt/application/conf/kubeadminaccount.yml"