 My open stack, this is Fuchiao from Beijing. Today, I'm here to represent our China Mobile Network Cloud integration team. Our team are engaging in building one of the world's largest open stack cloud, including more than 60,000 physical nodes in China. The network cloud supports core network service virtualization, including 5G and 4G. To improve the efficiency and quality of such large-scale multi-vendor cloud, our team develops automation tools and cross-vendor CI-CD pipeline. The team is consist of three sub-teams, namely the architecture and solution team, CI-CD and automation tools developing team, and deployment and delivery team. Open infrastructure brings benefit of agility and efficiency to Telco. However, it also increases the complexity of the network. Cross-vendor integration becomes one of the biggest challenges. Since 2019, we used Auto, our self-developed integration and testing tool, to support open stack cloud deployment and testing on 68 resource pools across eight regions. Auto helps reduce integration period of network cloud by one-third. It only takes 80 minutes for Auto to finish the hardware integration on a resource pool of more than 1,000 physical nodes. In the meantime, we also set up CI-CD pipeline to provide integration testing on multi-vendor cloud, with which we're able to continuously deploy and test vendor open stack for more than 17 times within two weeks, and each round only cost us less than five hours. The team has been contributing to open stack since 2013. So far, we have given one key nodes and nine sessions in OpenStack Summit and have served in programming community for six times. We also engage in the Telco and ad computing working group. In the meantime, we're also the founding members and active contributors in OPNMF and CNTT. We are very happy to be the nominee for the super user of OpenStack, and we would like to continuously contribute and support OpenStack Summit. So thank you and wish you all a happy summit.