Running ./cbt.py commands step by step on a cluster of VMs with Centos 7.2 image on them realized that the following step does not go through:
pdsh -R ssh -w root@vm10 ceph-authtool --create-keyring --gen-key --name=mon. /tmp/cbt/ceph/keyring --cap mon 'allow *'ceph-authtool I particularly see the following message when I run the above command: vm10:usage: ceph-authtool keyringfile [OPTIONS]... vm10:ceph-authtool: unexpected 'anaconda-ks.cfg' vm10:where the options are: vm10: -l, --list will list all keys and capabilities present in vm10: the keyring vm10: -p, --print-key will print an encoded key for the specified vm10: entityname. This is suitable for the vm10: 'mount -o secret=..' argument vm10: -C, --create-keyring will create a new keyring, overwriting any vm10: existing keyringfile vm10: -g, --gen-key will generate a new secret key for the vm10: specified entityname vm10: --gen-print-key will generate a new secret key without set it vm10: to the keyringfile, prints the secret to stdout vm10: --import-keyring will import the content of a given keyring vm10: into the keyringfile vm10: -u, --set-uid sets the auid (authenticated user id) for the vm10: specified entityname vm10: -a, --add-key will add an encoded key to the keyring vm10: --cap subsystem capability will set the capability for given subsystem vm10: --caps capsfile will set all of capabilities associated with a vm10: given key, for all subsystems I have added the host names and their IP addresses to /etc/hosts and ssh-keygen & ssh-copy-id have been done for all the hosts. So, no problem in doing passwordless ssh from/to machines inside the cluster.
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