(feat) version gating initial support - #307
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Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
sandeepkunusoth
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Today, the config gets dropped if the user specified it but not against a supporting version. Could we have some observability to feedback when this happens? #271 introduced a Is it necessary to set the default value in the config when it is omitted? We don't do this for any other configs. Is a new Status field ValkeyVersion necessary? It's not being consumed by anything in this PR - or was it added for another reason? |
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this is the version-gating shape from #287, reading the tag and bailing to unversioned for latest/digest, good. answering your three: observability / reusing the auto-default: your consistency instinct is fair, and it honestly cuts against what i argued on #287. the deciding question is whether the operator wants to be opinionated about turning cert auto-reload on for TLS clusters (keep the default, but make it observable and documented as operator-set), or stay a thin config passthrough like it is for every other directive (drop the 86400, only gate user-set values). i'd lean passthrough now: least surprising, removes the "why is there a config i didn't set" question, and a user who wants auto-reload sets it explicitly with the gate protecting them on <9.1. the cost is TLS users don't get it for free, which is a fine follow-up if there's demand.
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Signed-off-by: sandeep kunusoth <31273507+sandeepkunusoth@users.noreply.github.com>
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
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Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
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flagging the
a single condition type with a single reason field can't hold two independent warnings, which is the real lesson of reusing it. two ways out:
i'd lean roll-up to honor the reuse, but either fixes it. the thing to avoid is two independent separately, greptile's config.go:177 one is the point from my earlier comment: |
jdheyburn
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There is a potential race condition that goes like this:
- User adds a version gated config, and bumps the image to a version that supports that config
- ConfigMap is generated with the version gated config, this propagates to all pods
- Operator starts to roll ValkeyNodes
- Another ValkeyNode that has not yet had its spec updated, is restarted for whatever reason - its Spec.Image is still the old one
- Restarted ValkeyNode is crash-loop-back-off because it cannot read the version gated config
Therefore I think we should include docs to say:
- Update image in one change, wait for roll to complete
- Add the version gated config in another change
Outside of that, I'm thinking how we can extend this functionality beyond configurations, such the operator gating features, etc., based on what version is being run.
Signed-off-by: sandeep kunusoth <31273507+sandeepkunusoth@users.noreply.github.com>
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Included review availability: Your plan provides up to 2 included reviews per hour; 1 remains after this review. 📝 WalkthroughWalkthroughThe operator now parses Valkey image versions, gates ChangesConfiguration and cluster status
Sequence Diagram(s)sequenceDiagram
participant ValkeyCluster
participant Reconciler
participant VersionFromImage
participant ConfigRenderer
participant KubernetesStatus
ValkeyCluster->>Reconciler: Reconcile image and configuration
Reconciler->>VersionFromImage: Parse effective image version
VersionFromImage-->>ConfigRenderer: Return version compatibility
ConfigRenderer-->>Reconciler: Render config and collect warnings
Reconciler->>KubernetesStatus: Apply warning condition and event
Suggested reviewers: Merge Risk: 🟡 Moderate · up to This PR gates Valkey directives based on image-version text and changes readiness reporting around ACL updates, but the current head still has tests that do not compile and can report a cluster ready before requested credentials are live; digest-pinned images may also receive an incompatible directive. These issues should be fixed or explicitly accepted before merge. 🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (2 warnings)
✅ Passed checks (3 passed)
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Actionable comments posted: 4
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Inline comments:
In `@docs/status-conditions.md`:
- Around line 136-137: Update the UnsupportedConfigDirective documentation to
include directives dropped when the Valkey version cannot be determined from
spec.image, not only when a detected version lacks support. Update the
MultipleConfigurationWarnings text to state that the condition reason lists all
active warning reasons, rather than referring to the condition message.
In `@docs/valkeycluster.md`:
- Around line 148-152: Update docs/valkeycluster.md lines 148-152 to state that
both unsupported and indeterminate image versions suppress the directive and
produce a ConfigurationWarning. Update docs/valkeycluster.md line 376 to replace
“older images” with “unsupported or indeterminate images” and capitalize “It”.
In `@internal/controller/config.go`:
- Around line 167-170: Update the ConfigurationWarning construction around
effectiveImage and versionDetail in internal/controller/config.go: when
cluster.Spec.Image is empty, identify DefaultImage as the image source;
otherwise retain spec.image. Add the requested empty-spec.image test with an
explicit tls-auto-reload-interval in internal/controller/config_test.go lines
192-210, asserting that the warning names the default image.
In `@test/e2e/valkeycluster_tls_test.go`:
- Around line 341-345: Update the pre-gate manifest’s TLS configuration to use
the spec.networking.tls field, including the certificate secretName and
tls-auto-reload-interval settings, instead of placing TLS at the unsupported
spec.tls location.
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api/v1alpha1/valkeycluster_types.godocs/status-conditions.mddocs/valkeycluster.mdgo.modinternal/controller/config.gointernal/controller/config_test.gointernal/controller/status.gointernal/controller/status_test.gointernal/controller/utils.gointernal/controller/valkeycluster_controller.gointernal/valkey/version.gointernal/valkey/version_test.gotest/e2e/valkeycluster_tls_test.go
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Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
melancholictheory
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Ran the failure this gate prevents rather than taking it on trust. Setting tls-auto-reload-interval: "3600" on a 9.0.0 image gives:
*** FATAL CONFIG FILE ERROR (Version 9.0.0) ***
Reading the configuration file, at line 2
>>> 'tls-auto-reload-interval 3600'
Bad directive or wrong number of arguments
One node down, cluster to Reconciling, and the roll stops there rather than carrying the mistake to the rest. Removing the directive again recovered the cluster on its own in about 105 seconds. So the problem is real and the remediation completes without help, which is worth knowing since it means the gate is preventing an outage rather than papering over one.
Two things on scope and one detail.
The gate covers user directives only. gatedUserKeysToSuppress filters spec.config, while getBaseConfig is untouched and renders unconditionally. That holds together today because the baseline is 9.0 and everything in the base map is 9.0-safe, but #263 frames the gap as features needing a newer minor than the baseline, and the first operator-owned 9.1 directive would go straight past this. Worth saying whether that is deliberate for the initial framework.
Release candidates are flattened to GA. imageVersionRE goes to the trouble of matching -rcN, and then semver.New(parsed.Major(), parsed.Minor(), parsed.Patch(), "", "") discards it, so 9.1.0-rc1 gates exactly like 9.1.0. Keeping the prerelease would make an RC compare below GA, dropping -rcN from the regex would make RC tags read as undeterminable, and either is defensible. Silently treating them as GA is the one option that is not stated anywhere.
The doc line telling people to apply the image change and let it roll before adding a gated directive is the honest mitigation for the shared ConfigMap window, and worth keeping prominent.
…supported config cases and also fixed rc1 tags Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
On Valkey 9.0.0, The E2E test now verifies this behavior on a pre-9.1 image:
Agreed, this is deliberate for the initial framework.
Agreed. I updated
updated docs. |
bjosv
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LGTM.
Another issue might be if valkey adds additional enum-options to enum configs in newer version.
It looks like a older valkey version that don't know about that option will crash with *** FATAL CONFIG FILE ERROR *** We probably need to improve user docs closer to GA.
| // versionGatedConfig maps user-facing config directives to the minimum Valkey | ||
| // version that understands them. | ||
| var versionGatedConfig = map[string]*semver.Version{ | ||
| "tls-auto-reload-interval": semver.MustParse("9.1.0-rc1"), |
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How do we know which version introduced a specific config, is there source similar to commands?
E.g. valkey repo/src/commands/x.json. These only uses full version like "since": "9.2.0"
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I checked the Valkey source, Valkey has a machine-readable since field for commands, but there does not appear to be an equivalent source for individual valkey.conf directives.
For configuration directives, however, they are registered directly in src/config.c. For example, tls-auto-reload-interval is defined as:
createIntConfig("tls-auto-reload-interval", NULL, MODIFIABLE_CONFIG,
0, INT_MAX,
server.tls_ctx_config.auto_reload_interval,
0, INTEGER_CONFIG, NULL, applyTlsCfg),
need to revisit on this if there is better way. opened 1 issue.
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I now heard that there is a new command in Valkey 9.2 CONFIG INFO, but it wont help (no since info)
melancholictheory
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Re-reviewed at 117c54c. All three points from the previous pass are addressed.
The scope note is in the docs, and it says the right thing: gating covers spec.config only, and a future operator-owned directive needing a newer minor has to be gated where it is added.
VersionFromImage returns the parsed version now, so the prerelease survives, and the minimum moved to 9.1.0-rc1 with a test for it.
I checked that the minimum is the correct one rather than just a mechanical change. tls-auto-reload-interval is present in the 9.1.0-rc1 tag, and in rc2 and GA, so rc1 is the earliest release that understands the directive and the gate admits exactly the right set.
Build and make test are green on this head.
Signed-off-by: sandeep kunusoth <31273507+sandeepkunusoth@users.noreply.github.com>
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
I opened follow-up issues for these cases: #422 — Prevent Valkey FATAL CONFIG FILE ERROR when spec.config exceeds image version |
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
Signed-off-by: Sandeep Kunusoth <sandeepkunsoth000@gmail.com>
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@bjosv can u please review again |
| Expect(warnings[0].message).To(ContainSubstring("no version could be detected from spec.image \"valkey/valkey:latest\"")) | ||
| }) | ||
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| It("versionGateConfigWarnings names the default image when spec.image is empty", func() { |
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yes this test needs to be removed for newer versions of default image or we can update it to mock versionConfig
It("versionGateConfigWarnings names the default image when spec.image is empty", func() {
versionGatedConfig["mock-higher-version-config-key"] = semver.MustParse("99.0.0")
DeferCleanup(func() {
delete(versionGatedConfig, "mock-higher-version-config-key")
})
cluster := newTLSCluster("", map[string]string{
"mock-higher-version-config": "mock-value",
})
warnings := versionGateConfigWarnings(cluster)
Expect(warnings).To(HaveLen(1))
Expect(warnings[0].message).To(ContainSubstring("default image"))
Expect(warnings[0].message).To(ContainSubstring(DefaultImage))
Expect(warnings[0].message).NotTo(ContainSubstring("spec.image"))
})
The version-gated config map (added in valkey-io#307) was maintained by hand, which can fall behind as new Valkey versions add directives. Deriving it from the Valkey sources keeps it complete and current. Add hack/gen_version_gated_config.py, which scans src/config.c across Valkey release tags and emits internal/controller/version_gated_config.go (directive -> minimum Valkey version). For each Valkey minor it reads one release: the final X.Y.0 if released, otherwise the newest release candidate (so users testing an rc image still get gating); once the final ships it takes over and its versions replace the rc ones. Patch releases are skipped so a directive is attributed to the minor that introduced it, not to an older patch that backported it (e.g. the 9.1 feature tls-auto-reload-interval also ships in 8.0.8). HIDDEN_CONFIG directives are also skipped: they are internal, absent from CONFIG GET, and not a supported user-facing setting. The script formats its output with gofmt and offers --check to verify the committed file is current. Remove the hand-written map from config.go and document regeneration in the developer guide. Signed-off-by: Björn Svensson <bjorn.a.svensson@est.tech>
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This PR closes #287 and initial support for #263
Summary
This PR adds initial support for Valkey version detection and uses it to gate Valkey 9.1-specific behavior in the operator.
Changes
Implementation
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Testing
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