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feat: Add dualStack server option to the Feast operator by dbbvitor · Pull Request #6887 · feast-dev/feast · GitHub
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feat: Add dualStack server option to the Feast operator #6887

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Merged
ntkathole merged 16 commits into from
Oct 9, 2026
Merged

feat: Add dualStack server option to the Feast operator #6887

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5261867
feat: Add dualStack server option to the Feast operator
dbbvitor Sep 25, 2026
5e78765
test: Cover -h boundary positions in withBindHost
dbbvitor Sep 25, 2026
3871ccb
fix: Let the registry opt out of its dual-stack REST bind
dbbvitor Sep 30, 2026
3d5467f
chore: Refresh secrets baseline timestamp to match master
dbbvitor Sep 30, 2026
9284756
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Sep 30, 2026
55a53f8
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Sep 30, 2026
f3995e2
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Sep 30, 2026
c7de640
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Oct 1, 2026
2074d81
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Oct 1, 2026
21b9c8b
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Oct 5, 2026
c2267df
fix(operator): Make default registry REST to IPv4 and dualStack opt-in
dbbvitor Oct 5, 2026
f8c4e5e
Merge remote-tracking branch 'upstream/master' into feat/operator-dua…
dbbvitor Oct 7, 2026
02b1e27
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Oct 8, 2026
a463b72
feat: Bind the standalone MCP server dual-stack with dualStack
dbbvitor Oct 8, 2026
cfab204
Merge branch 'master' into feat/operator-dual-stack
dbbvitor Oct 8, 2026
fab5304
Merge branch 'master' into feat/operator-dual-stack
ntkathole Oct 9, 2026
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feat: Add dualStack server option to the Feast operator 
Add a DualStack field to ServerConfigs that binds server processes to
the IPv6 wildcard address instead of 0.0.0.0, so they also accept IPv4
clients on dual-stack or IPv6-only clusters. Online and offline servers
use the bracketed [::] form required by gunicorn and Arrow Flight; ui,
lineage, and registry keep their existing behavior or use the bare ::
form uvicorn expects. The registry server always binds dual-stack and
ignores this setting.

Signed-off-by: dbbvitor <vitor.diniz@gympass.com>
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@dbbvitor
dbbvitor committed Sep 28, 2026
commit 52618678c380d877aec5deb0323e1f71f1412784
6 changes: 3 additions & 3 deletions .secrets.baseline
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5 changes: 5 additions & 0 deletions infra/feast-operator/api/v1/featurestore_types.go
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Expand Up @@ -897,6 +897,11 @@ type ServerConfigs struct {
LogLevel *string `json:"logLevel,omitempty"`
// Metrics exposes Prometheus-compatible metrics for the Feast server when enabled.
Metrics *bool `json:"metrics,omitempty"`
// DualStack binds the server to the IPv6 wildcard address instead of 0.0.0.0,
// which serves both IPv6 and IPv4 clients on Linux. Enable it on IPv6-only or dual-stack clusters.
// The registry server always binds dual-stack and ignores this setting.
// +optional
DualStack *bool `json:"dualStack,omitempty"`
// VolumeMounts defines the list of volumes that should be mounted into the feast container.
// This allows attaching persistent storage, config files, secrets, or other resources
// required by the Feast components. Ensure that each volume mount has a corresponding
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5 changes: 5 additions & 0 deletions infra/feast-operator/api/v1/zz_generated.deepcopy.go
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2 changes: 1 addition & 1 deletion infra/feast-operator/bundle/manifests/feast-operator.clusterserviceversion.yaml
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Expand Up @@ -147,7 +147,7 @@ metadata:
}
]
capabilities: Basic Install
createdAt: "2026-08-21T03:30:58Z"
createdAt: "2026-09-25T01:00:43Z"
operators.operatorframework.io/builder: operator-sdk-v1.41.0
operators.operatorframework.io/project_layout: go.kubebuilder.io/v4
name: feast-operator.v0.66.0
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40 changes: 40 additions & 0 deletions infra/feast-operator/bundle/manifests/feast.dev_featurestores.yaml
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Expand Up @@ -1012,6 +1012,10 @@ spec:
description: Server configuration (image, resources, env,
TLS, etc.).
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -2409,6 +2413,10 @@ spec:
server:
description: Creates a remote offline server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -2960,6 +2968,10 @@ spec:
server:
description: Creates a feature server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -3621,6 +3633,10 @@ spec:
server:
description: Creates a registry server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -4990,6 +5006,10 @@ spec:
ui:
description: Creates a UI server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable present
Expand Down Expand Up @@ -7883,6 +7903,10 @@ spec:
description: Server configuration (image, resources,
env, TLS, etc.).
properties:
dualStack:
description: DualStack binds the server to the
IPv6 wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment
Expand Down Expand Up @@ -9297,6 +9321,10 @@ spec:
server:
description: Creates a remote offline server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -9856,6 +9884,10 @@ spec:
server:
description: Creates a feature server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -10531,6 +10563,10 @@ spec:
server:
description: Creates a registry server container
properties:
dualStack:
description: DualStack binds the server to the
IPv6 wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment
Expand Down Expand Up @@ -11918,6 +11954,10 @@ spec:
ui:
description: Creates a UI server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down
40 changes: 40 additions & 0 deletions infra/feast-operator/config/crd/bases/feast.dev_featurestores.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1012,6 +1012,10 @@ spec:
description: Server configuration (image, resources, env,
TLS, etc.).
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -2409,6 +2413,10 @@ spec:
server:
description: Creates a remote offline server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -2960,6 +2968,10 @@ spec:
server:
description: Creates a feature server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -3621,6 +3633,10 @@ spec:
server:
description: Creates a registry server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -4990,6 +5006,10 @@ spec:
ui:
description: Creates a UI server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable present
Expand Down Expand Up @@ -7883,6 +7903,10 @@ spec:
description: Server configuration (image, resources,
env, TLS, etc.).
properties:
dualStack:
description: DualStack binds the server to the
IPv6 wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment
Expand Down Expand Up @@ -9297,6 +9321,10 @@ spec:
server:
description: Creates a remote offline server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -9856,6 +9884,10 @@ spec:
server:
description: Creates a feature server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -10531,6 +10563,10 @@ spec:
server:
description: Creates a registry server container
properties:
dualStack:
description: DualStack binds the server to the
IPv6 wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment
Expand Down Expand Up @@ -11918,6 +11954,10 @@ spec:
ui:
description: Creates a UI server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down
40 changes: 40 additions & 0 deletions infra/feast-operator/dist/install.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1020,6 +1020,10 @@ spec:
description: Server configuration (image, resources, env,
TLS, etc.).
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -2417,6 +2421,10 @@ spec:
server:
description: Creates a remote offline server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -2968,6 +2976,10 @@ spec:
server:
description: Creates a feature server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -3629,6 +3641,10 @@ spec:
server:
description: Creates a registry server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -4998,6 +5014,10 @@ spec:
ui:
description: Creates a UI server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable present
Expand Down Expand Up @@ -7891,6 +7911,10 @@ spec:
description: Server configuration (image, resources,
env, TLS, etc.).
properties:
dualStack:
description: DualStack binds the server to the
IPv6 wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment
Expand Down Expand Up @@ -9305,6 +9329,10 @@ spec:
server:
description: Creates a remote offline server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -9864,6 +9892,10 @@ spec:
server:
description: Creates a feature server container
properties:
dualStack:
description: DualStack binds the server to the IPv6
wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down Expand Up @@ -10539,6 +10571,10 @@ spec:
server:
description: Creates a registry server container
properties:
dualStack:
description: DualStack binds the server to the
IPv6 wildcard address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment
Expand Down Expand Up @@ -11926,6 +11962,10 @@ spec:
ui:
description: Creates a UI server container
properties:
dualStack:
description: DualStack binds the server to the IPv6 wildcard
address instead of 0.0.0.
type: boolean
env:
items:
description: EnvVar represents an environment variable
Expand Down
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