#732 Docker tools tests failing in production K8s

All 9 docker tools integration tests fail with 'failed' status on production K8s. Workers likely don't have Docker socket access in K8s pods. Tests: test_docker_hello_world, test_docker_with_environment_variables, test_docker_with_resource_limits, test_docker_exec, test_docker_with_logging, test_docker_inspect, test_docker_compose_simple, test_docker_network_isolation. Root cause: Docker daemon not accessible from worker pods.