- name: install the 'Infiniband support' package group yum: name="@Infiniband Support" state=present # https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_the_base_rdma_subsystem - name: Allow users unrestricted page-locking copy: src="rdma_limits.conf" dest="/etc/security/limits.d/50-rdma.conf" owner="root" group="root" mode="0644" - name: start rdma service service: name="rdma" enabled=yes state=started