that way it's easier to see on which NS one currently operates and
allows better distinguishing of root NS and some sub ns named "Root"
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
reference NS so that users get a hint where they are currently
hierarchy-wise, and clarify that we found no *accessible* snapshots,
on this level, i.e., there can be some that we just cannot see due to
only having access on lover level NS or being different owners.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
helpful for places where namespaces need to be (re)created
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
this is the most common sequence of checks we have in this file, so
let's have a single place where we implement it.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
these happen together very often.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
else this could leak existence of datastore.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
the helper now takes both high-privilege and lesser-privilege privs, so
the resulting bool can be used to quickly check whether additional
checks like group ownership are needed or not.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
We decided to go this route because it'll most likely be
safer in the API as we need to explicitly add namespaces
support to the various API endpoints this way.
For example, 'pull' should have 2 namespaces: local and
remote, and the GroupFilter (which would otherwise contain
exactly *one* namespace parameter) needs to be applied for
both sides (to decide what to pull from the remote, and what
to *remove* locally as cleanup).
The *datastore* types still contain the namespace and have a
`.backup_ns()` getter.
Note that the datastore's `Display` implementations are no
longer safe to use as a deserializable string.
Additionally, some datastore based methods now have been
exposed via the BackupGroup/BackupDir types to avoid a
"round trip" in code.
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
We probably can combine the base permission + owner check, but for
now add explicit ones to upfront so that the change is simpler as
only one thing is done.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
allow to list any namespace with privileges on it and allow to create
and delete namespaces if the user has modify permissions on the parent
namespace.
Creation is only allowed if the parent NS already exists.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
on depth == 0 we only yield the anchor ns, this simplifies usage in
the API as for, e.g. list-snapthos the depth == 0 means only the
snapshots from the passed namespace, nothing below.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
[ T: renamed from NAMESPACE_RECURSION_DEPTH_SCHEMA & moved to from
jobs to datastore ]
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
given a namespace, a source prefix and a target prefix this helper
strips the source prefix and replaces it with the target one (erroring
out if the prefix doesn't match).
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
these are the ones for non-#[api] methods, also fill in the
namespace in prune operations
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
The behavior on "any snapshot was protected" isn't yet ideal, as we
then do not cleanup any (sub) namespace, even if some of them where
cleaned from groups & snapshots completely. But that isn't easy to do
with our current depth-first pre-order iterator behavior, and it's
also not completely wrong either, the user can re-do the removal on
the sub-namespaces, so leave that for later.
Should get moved to a datastore::BackupNamespace type once/if we get
one
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Make it easier by adding an helper accepting either group or
directory
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
The idea is to have namespaces in a datastore to allow grouping and
namespacing backups from different (but similar trusted) sources,
e.g., different PVE clusters, geo sites, use-cases or company
service-branches, without separating the underlying
deduplication domain and thus blowing up data and (GC/verify)
resource usage.
To avoid namespace ID clashes with anything existing or future
usecases use a intermediate `ns` level on *each* depth.
The current implementation treats that as internal and thus hides
that fact from the API, iow., the namespace path the users passes
along or gets returned won't include the `ns` level, they do not
matter there at all.
The max-depth of 8 is chosen with the following in mind:
- assume that end-users already are in a deeper level of a hierarchy,
most often they'll start at level one or two, as the higher ones
are used by the seller/admin to namespace different users/groups,
so lower than four would be very limiting for a lot of target use
cases
- all the more, a PBS could be used as huge second level archive in a
big company, so one could imagine a namespace structure like:
/<state>/<intra-state-location>/<datacenter>/<company-branch>/<workload-type>/<service-type>/
e.g.: /us/east-coast/dc12345/financial/report-storage/cassandra/
that's six levels that one can imagine for a reasonable use-case,
leave some room for the ones harder to imagine ;-)
- on the other hand, we do not want to allow unlimited levels as we
have request parameter limits and deep nesting can create other
issues as well (e.g., stack exhaustion), so doubling the minimum
level of 4 (1st point) we got room to breath even for the
more odd (or huge) use cases (2nd point)
- a per-level length of 32 (-1 due to separator) is enough to use
telling names, making lives of users and admin simpler, but not
blowing up parameter total length with the max depth of 8
- 8 * 32 = 256 which is nice buffer size
Much thanks for Wolfgang for all the great work on the type
implementation and assisting greatly with the design.
Co-authored-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Co-authored-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
and issue a warning. We can do this, because we know an empty chunk
cannot be valid, and we (assumedly) have a valid chunk in memory.
Having empty chunks on disk is currently possible when PBS crashes,
but the rename of the chunk was flushed to disk, when the actual data
was not.
If it's not empty but there is a size mismatch, return an error.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Thomas Lamprecht
Wolfgang Bumiller
Fabian Grünbichler
Dominik Csapak