PRedictive In-silico Multiscale Analytics to support cancer personalized diaGnosis and prognosis, Empowered by imaging biomarkers (PRIMAGE) proposes a cloud-based platform to support decision making in the clinical management of malignant solid tumours, offering predictive tools to assist diagnosis, prognosis, therapies choice and treatment follow up, based on the use of novel imaging biomarkers, in-silico tumour growth simulation, advanced visualisation of predictions with weighted confidence scores and machine-learning based translation of this knowledge into predictors for the most relevant, disease-specific, Clinical End Points. PRIMAGE relies on a Cloud Processing and Storage Platform that can be instantiated in a wide range of public and on-premise cloud resources (Cloud Computing Infrastructure). This technical report shows in practical terms how to get the proper authentication and authorisation credentials to be able to access the resources of PRIMAGE Cloud Platform. The Technical Report describes first how to register to the PRIMAGE Virtual Organisation (PRIMAGE VO). This action will enable accessing the infrastructure (Data & computing resources) of PRIMAGE. Once a user is registered in the PRIMAGE VO, the technical report describes the alternative procedures for accessing the data storage infrastructure deployment of PRIMAGE.