Try sudo docker login in push step.
Try sudo docker login in push step.

albertodall/eShopOnContainers,dotnet-architecture/eShopOnContainers,skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers,skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers,skynode/eShopOnContainers,dotnet-architecture/eShopOnContainers,albertodall/eShopOnContainers,albertodall/eShopOnContainers,dotnet-architecture/eShopOnContainers,skynode/eShopOnContainers,skynode/eShopOnContainers