Add config for parallel command containers #402
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What
Define a new env var to set on the agent-start container that controls when the commands in the command containers can run.
Why
Each container connects to the agent-start container using a Unix domain socket, and then waits until the agent-start container tells it to start. Currently, it only starts containers serially: container with ID
N
only starts after container with IDN-1
is finished (except for container with ID 0, which can always start), with no way to override this.This change implements such an override. Note that a corresponding agent change is also needed.