This change isolates all the code that deals with node selection in the
scheduler into its own package called feasible.
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Co-authored-by: Tim Gross <tgross@hashicorp.com>
In the spirit of #25909, this PR removes testify dependencies from the scheduler
package, along with reflect.DeepEqual removal. This is again a combination of
semgrep and hx editing magic.
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Co-authored-by: Tim Gross <tgross@hashicorp.com>
In #23977 we moved the keyring into Raft, which can expose key material in Raft
snapshots when using the less-secure AEAD keyring instead of KMS. This changeset
adds tools for redacting this material from snapshots:
* The `operator snapshot state` command gains the ability to display key
metadata (only), which respects the `-filter` option.
* The `operator snapshot save` command gains a `-redact` option that removes key
material from the snapshot after it's downloaded.
* A new `operator snapshot redact` command allows removing key material from an
existing snapshot.
Stream snapshot to FSM when restoring from archive
The `RestoreFromArchive` helper decompresses the snapshot archive to a
temporary file before reading it into the FSM. For large snapshots
this performs a lot of disk IO. Stream decompress the snapshot as we
read it, without first writing to a temporary file.
Add bexpr filters to the `RestoreFromArchive` helper.
The operator can pass these as `-filter` arguments to `nomad operator
snapshot state` (and other commands in the future) to include only
desired data when reading the snapshot.
Adds a package `scheduler/benchmarks` with some examples of profiling
and benchmarking the scheduler, along with helpers for loading
real-world data for profiling.
This tooling comes out of work done for #11712. These test benchmarks
have not been added to CI because these particular profiles are mostly
examples and the runs will add an excessive amount of time to CI runs
for code that rarely changes in a way that has any chance of impacting
performance.
