echo "${CUSTOM_INGRESS_YAML}" > "${dest_manifest}"
    else
      cp "${src_manifest}" "${dest_manifest}"
    fi

    # Override the glbc image if GCE_GLBC_IMAGE is specified.
    if [[ -n "${GCE_GLBC_IMAGE:-}" ]]; then
      sed -i "s|image:.*|image: ${GCE_GLBC_IMAGE}|" "${dest_manifest}"
    fi
  fi
}

# Setup working directory for kubelet.
function setup-kubelet-dir {

ADVANCED_AUDIT_WEBHOOK_INITIAL_BACKOFF: $(yaml-quote "${ADVANCED_AUDIT_WEBHOOK_INITIAL_BACKOFF:-}")
GCE_API_ENDPOINT: $(yaml-quote "${GCE_API_ENDPOINT:-}")
GCE_GLBC_IMAGE: $(yaml-quote "${GCE_GLBC_IMAGE:-}")
CUSTOM_INGRESS_YAML: |
${CUSTOM_INGRESS_YAML//\'/\'\'}
ENABLE_NODE_JOURNAL: $(yaml-quote "${ENABLE_NODE_JOURNAL:-false}")
PROMETHEUS_TO_SD_ENDPOINT: $(yaml-quote "${PROMETHEUS_TO_SD_ENDPOINT:-}")