This dataset release contains the execution traces and training data correponding to the paper "COSCO: Container Orchestration using Co-Simulation and Gradient Based Optimization for Fog Computing Environments", by S. Tuli, S. Poojara, S. N. Srirama, G.Casale and N. R. jennings, accepted in IEEE Trasnsactions on Parallel and Distributed Systems (TPDS), 2021. When referring to the dataset please cite the above paper. The code implementation is available at https://github.com/imperial-qore/COSCO.