[7.x] Add basic alias support for data streams#72908
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martijnvg merged 2 commits intoelastic:7.xfrom May 11, 2021
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Backporting elastic#72613 to 7.x. Aliases to data streams can be defined via the existing update aliases api. Aliases can either only refer to data streams or to indices (not both). Also the existing get aliases api has been modified to support returning aliases that refer to data streams. Aliases for data streams are stored separately from data streams and and refer to data streams by name and not to the backing indices of a data stream. This means that when backing indices are added or removed from a data stream that then the data stream alias doesn't need to be updated. The authorization model for aliases that refer to data streams is the same as for aliases the refer to indices. In security privileges can be defined on aliases, indices and data streams. When a privilege is granted on an alias then access is also granted on the indices that an alias refers to (irregardless whether privileges are granted or denied on the actual indices). The same will apply for aliases that refer to data streams. See for more details: elastic#66163 (comment) Relates to elastic#66163
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Backporting #72613 to 7.x.
Aliases to data streams can be defined via the existing update aliases api.
Aliases can either only refer to data streams or to indices (not both).
Also the existing get aliases api has been modified to support returning
aliases that refer to data streams.
Aliases for data streams are stored separately from data streams and
and refer to data streams by name and not to the backing indices of
a data stream. This means that when backing indices are added or removed
from a data stream that then the data stream alias doesn't need to be
updated.
The authorization model for aliases that refer to data streams is the
same as for aliases the refer to indices. In security privileges can
be defined on aliases, indices and data streams. When a privilege is
granted on an alias then access is also granted on the indices that
an alias refers to (irregardless whether privileges are granted or denied
on the actual indices). The same will apply for aliases that refer
to data streams. See for more details:
#66163 (comment)
Relates to #66163