Docker image built in one build step on one agent not available on another agent

Hello,

I have simple configuration: one build step (B1) builds docker image (on AgentX). The other build step (B2) is triggered only when the first one (B1) has finished successfully. But B1 might be triggered on AgentX and B2 on AgentY. In that case the image built during B1 is not available for B2. How can I share the image across all agents ?