Cause: There was a race condition if multiple hosts tried to add a key
to the authorized_keys file on kdump_ssh_server at the same time.
Consequence: A key added by one host could be overwritten by a key
added by another host.
Fix: Use the lineinfile module to manage the file - this will ensure
that checking for an existing key, and writing the new key, is done
in one atomic operation on only one host at a time.
Result: A host cannot overwrite the value from another host, and adding
keys is idempotent.
NOTE: You can use the play keyword serial: 1 to workaround this issue
at the play level.
richm
commented
1 year ago
Cause: There was a race condition if multiple hosts tried to add a key to the authorized_keys file on kdump_ssh_server at the same time.
Consequence: A key added by one host could be overwritten by a key added by another host.
Fix: Use the lineinfile module to manage the file - this will ensure that checking for an existing key, and writing the new key, is done in one atomic operation on only one host at a time.
Result: A host cannot overwrite the value from another host, and adding keys is idempotent.
NOTE: You can use the play keyword
serial: 1to workaround this issue at the play level.Signed-off-by: Rich Megginson rmeggins@redhat.com