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feat(fluentbit): add compress option to the forward output #2083

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b6e0d70
feat(fluentbit): add compress option to the forward output
cvas22 Oct 28, 2026
6b33f57
chore: regenerate CRDs, manifests and docs for the forward compress o…
cvas22 Oct 28, 2026
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7 changes: 6 additions & 1 deletion apis/fluentbit/v1alpha2/plugins/output/forward_types.go
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,11 @@ type Forward struct {
SelfHostname string `json:"selfHostname,omitempty"`
// Retain metadata when forwarding in forward mode.
RetainMetadataInForwardMode *bool `json:"retainMetadataInForwardMode,omitempty"`
*plugins.TLS `json:"tls,omitempty"`
// Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
// set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
// +kubebuilder:validation:Enum:=gzip
Compress string `json:"compress,omitempty"`
*plugins.TLS `json:"tls,omitempty"`
// Include fluentbit networking options for this output-plugin
*plugins.Networking `json:"networking,omitempty"`
}
Expand Down Expand Up @@ -78,6 +82,7 @@ func (f *Forward) Params(sl plugins.SecretLoader) (*params.KVs, error) {
plugins.InsertKVString(kvs, "Tag", f.Tag)
plugins.InsertKVString(kvs, "Shared_Key", f.SharedKey)
plugins.InsertKVString(kvs, "Self_Hostname", f.SelfHostname)
plugins.InsertKVString(kvs, "Compress", f.Compress)

plugins.InsertKVField(kvs, "Port", f.Port)
plugins.InsertKVField(kvs, "Empty_Shared_Key", f.EmptySharedKey)
Expand Down
45 changes: 45 additions & 0 deletions apis/fluentbit/v1alpha2/plugins/output/forward_types_test.go
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@@ -0,0 +1,45 @@
package output

import (
"testing"

"github.com/fluent/fluent-operator/v3/apis/fluentbit/v1alpha2/plugins"
"github.com/fluent/fluent-operator/v3/apis/fluentbit/v1alpha2/plugins/params"
. "github.com/onsi/gomega"
)

func TestOutput_Forward_Params(t *testing.T) {
g := NewGomegaWithT(t)

sl := plugins.NewSecretLoader(nil, "test namespace")

fwd := Forward{
Host: "fluentd.logging",
Port: new(int32(24224)),
Compress: "gzip",
}

expected := params.NewKVs()
expected.Insert("Host", "fluentd.logging")
expected.Insert("Compress", "gzip")
expected.Insert("Port", "24224")

kvs, err := fwd.Params(sl)
g.Expect(err).NotTo(HaveOccurred())
g.Expect(kvs).To(Equal(expected))
}

func TestOutput_Forward_Params_NoCompress(t *testing.T) {
g := NewGomegaWithT(t)

sl := plugins.NewSecretLoader(nil, "test namespace")

fwd := Forward{Host: "fluentd.logging"}

expected := params.NewKVs()
expected.Insert("Host", "fluentd.logging")

kvs, err := fwd.Params(sl)
g.Expect(err).NotTo(HaveOccurred())
g.Expect(kvs).To(Equal(expected))
}
7 changes: 7 additions & 0 deletions charts/fluent-operator-fluent-bit-crds/templates/fluentbit.fluent.io_clusteroutputs.yaml
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Expand Up @@ -1143,6 +1143,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down
7 changes: 7 additions & 0 deletions charts/fluent-operator-fluent-bit-crds/templates/fluentbit.fluent.io_outputs.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1143,6 +1143,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down
7 changes: 7 additions & 0 deletions charts/fluent-operator/crds/fluentbit.fluent.io_clusteroutputs.yaml
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Expand Up @@ -1141,6 +1141,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down
7 changes: 7 additions & 0 deletions charts/fluent-operator/crds/fluentbit.fluent.io_outputs.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1141,6 +1141,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down
7 changes: 7 additions & 0 deletions config/crd/bases/fluentbit.fluent.io_clusteroutputs.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1142,6 +1142,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down
7 changes: 7 additions & 0 deletions config/crd/bases/fluentbit.fluent.io_outputs.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1142,6 +1142,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down
1 change: 1 addition & 0 deletions docs/plugins/fluentbit/output/forward.md
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Expand Up @@ -17,5 +17,6 @@ Forward is the protocol used by Fluentd to route messages between peers. <br />
| password | Specify the password corresponding to the username. | *[plugins.Secret](../secret.md) |
| selfHostname | Default value of the auto-generated certificate common name (CN). | string |
| retainMetadataInForwardMode | Retain metadata when forwarding in forward mode. | *bool |
| compress | Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later. | string |
| tls | | *[plugins.TLS](../tls.md) |
| networking | Include fluentbit networking options for this output-plugin | *[plugins.Networking](../net.md) |
14 changes: 14 additions & 0 deletions manifests/setup/setup.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -5344,6 +5344,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down Expand Up @@ -36849,6 +36856,13 @@ spec:
forward:
description: Forward defines Forward Output configuration.
properties:
compress:
description: |-
Set to gzip to enable gzip compression. Incompatible with timeAsInteger set to true and with tags
set dynamically using the Rewrite Tag filter. Requires Fluentd server v0.14.7 or later.
enum:
- gzip
type: string
emptySharedKey:
description: Use this option to connect to Fluentd with a zero-length
secret.
Expand Down
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