MDATA-PUT(8) Metadata Commands MDATA-PUT(8)
NAME
mdata-put -- Set the value of a metadata key-value pair.
SYNOPSIS
/usr/sbin/mdata-put keyname [
value ]
DESCRIPTION
The
mdata-put command allows the user (or a script) to modify the
metadata for a guest instance running in a
TritonDataCenter (TDC) cloud.
Metadata values are generally set programmatically via
CloudAPI, or
during interactive provisioning via a Web Portal. The value of a key-
value pair may be obtained by passing its name to the
mdata-get command.
The key-value pair named
keyname will be updated in the metadata store
for this instance. If a
value argument is provided on the command-line,
then that value will be used. Otherwise, if
stdin is not a tty, the
value will be read from
stdin.
If the metadata service is unavailable at the time of the request, this
command will block waiting for it to become available. Non-transient
failures, such as the non-existence of the requested
keyname, will cause
the program to exit with a non-zero status. Depending on the nature of
the error, some diagnostic output may be printed to
stderr.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
The requested
keyname was valid, and its value was updated.
2 An error occurred.
An unexpected error condition occurred, which is believed to be a
non-transient condition. Retrying the request is not expected to
resolve the error condition; either a software bug or
misconfiguration exists.
3 A usage error occurred.
Malformed arguments were passed to the program. Check the usage
instructions to ensure valid arguments are supplied.
SEE ALSO
mdata-delete(8),
mdata-get(8),
mdata-list(8)TritonDataCenter May 2023
MDATA-PUT(8)