Create shared secret for secure communication
createSharedSecret -file <filename>
createSharedSecret creates a shared secret file used for secure
communication between job managers and workers. The file is named
in the current folder.
createSharedSecret -file <filename> create a shared secret
file as the given filename.
Before passing sensitive data from one service to another (e.g., between job manager and workers), these services need to establish a trust relationship using a shared secret. This script creates a file that serves as a shared secret between the services. Each service is trusted that has access to that secret file.
Create the secret file only once per cluster on one machine, then copy it into the
location specified by
SHARED_SECRET_FILE in the
mjs_def file on each machine before starting any job managers or
workers. In a shared file system, all nodes can point to the same file. Shared secrets can
be reused in subsequent sessions.
Create a shared secret file in a central location for all the nodes of the cluster:
cd matlabInstallDir/toolbox/parallel/bin createSharedSecret -file /share/secret
Then make sure that the nodes' shared or copied
mjs_def files set the
starting the mjs service on each.