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feat: Allow journald directory to be overriden #4017

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427b76d
feat: allow change of hardcoded journald location
Oct 15, 2025
84ba7d4
also update windows daemonset, properly set / on end of hostPath
Oct 15, 2025
2b0cfc5
also update windows daemonset, remove incorrect include
Oct 15, 2025
1176f6c
tests for journald directory
Oct 16, 2025
58cc090
add README line
Oct 16, 2025
805d8ba
add changelog
Oct 17, 2025
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1 change: 1 addition & 0 deletions .changelog/4017.added.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
feat: Allow journald directory to be overriden
1 change: 1 addition & 0 deletions deploy/helm/sumologic/README.md
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Expand Up @@ -74,6 +74,7 @@ The following table lists the configurable parameters of the Sumo Logic chart an
| `sumologic.logs.otelcol.useDefaultExporters` | Set to `false` to use only `sumologic.logs.otelcol.extraExporters`. See [Sumo Logic documentation](https://help.sumologic.com/docs/send-data/kubernetes/collecting-logs/) for details. | `true` |
| `sumologic.logs.container.perContainerAnnotationsEnabled` | Enable container-level pod annotations. | `false` |
| `sumologic.logs.container.perContainerAnnotationPrefixes` | Defines the list of prefixes of container-level pod annotations. | `[]` |
| `sumologic.logs.systemd.journaldDirectory` | Set the directory read by the journald receiver. | `/var/log/journal` |
| `sumologic.logs.systemd.sourceName` | Set the \_sourceName metadata field in Sumo Logic. | `"%{_sourceName}"` |
| `sumologic.logs.systemd.sourceCategory` | Set the \_sourceCategory metadata field in Sumo Logic. | `"system"` |
| `sumologic.logs.systemd.sourceCategoryPrefix` | Set the prefix, for \_sourceCategory metadata. | `"kubernetes/"` |
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2 changes: 1 addition & 1 deletion deploy/helm/sumologic/conf/logs/collector/otelcol/config.yaml
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Expand Up @@ -61,7 +61,7 @@ receivers:

{{- if .Values.sumologic.logs.systemd.enabled }}
journald:
directory: /var/log/journal
directory: {{ .Values.sumologic.logs.systemd.journaldDirectory }}
## This is not a full equivalent of fluent-bit filtering as fluent-bit filters by `_SYSTEMD_UNIT`
## Here is filtering by `UNIT`
units:
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8 changes: 4 additions & 4 deletions deploy/helm/sumologic/templates/logs/collector/otelcol/daemonset.yaml
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Expand Up @@ -111,8 +111,8 @@ spec:
readOnly: true
- mountPath: /var/lib/storage/otc
name: file-storage
- mountPath: /var/log/journal
name: varlogjournal
- mountPath: {{ $.Values.sumologic.logs.systemd.journaldDirectory }}
name: {{ $.Values.sumologic.logs.systemd.journaldDirectory | replace "/" "" }}
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@chan-tim-sumo chan-tim-sumo Oct 27, 2025 •
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just thinking here, what if the user sets something ambiguous or an invalid name?
(as in, would journal work if the mount path isn't /var/log/journal?)

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It's likely that journal messages would not be ingested if this is neither /var/log/journal nor /run/log/journal . Perhaps this should be a toggle to use either of the two, or maybe a setting equivalent to Storage=?

https://www.freedesktop.org/software/systemd/man/latest/journald.conf.html#Storage=

readOnly: true
{{- if $daemonset.extraVolumeMounts }}
{{ toYaml $daemonset.extraVolumeMounts | indent 8 }}
Expand Down Expand Up @@ -178,9 +178,9 @@ spec:
type: DirectoryOrCreate
name: file-storage
- hostPath:
path: /var/log/journal/
path: {{ $.Values.sumologic.logs.systemd.journaldDirectory }}/
type: ""
name: varlogjournal
name: {{ $.Values.sumologic.logs.systemd.journaldDirectory | replace "/" "" }}
{{- if $daemonset.extraVolumes }}
{{ toYaml $daemonset.extraVolumes | indent 6 }}
{{- end }}
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8 changes: 4 additions & 4 deletions deploy/helm/sumologic/templates/logs/collector/otellogswindows/daemonset.yaml
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Expand Up @@ -116,8 +116,8 @@ spec:
readOnly: true
- mountPath: /var/lib/storage/otc
name: file-storage
- mountPath: /var/log/journal
name: varlogjournal
- mountPath: {{ $.Values.sumologic.logs.systemd.journaldDirectory }}
name: {{ $.Values.sumologic.logs.systemd.journaldDirectory | replace "/" "" }}
readOnly: true
{{- if $daemonset.extraVolumeMounts }}
{{ toYaml $daemonset.extraVolumeMounts | indent 8 }}
Expand Down Expand Up @@ -191,9 +191,9 @@ spec:
type: DirectoryOrCreate
name: file-storage
- hostPath:
path: /var/log/journal/
path: {{ $.Values.sumologic.logs.systemd.journaldDirectory }}/
type: ""
name: varlogjournal
name: {{ $.Values.sumologic.logs.systemd.journaldDirectory | replace "/" "" }}
{{- if $daemonset.extraVolumes }}
{{ toYaml $daemonset.extraVolumes | indent 6 }}
{{- end }}
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3 changes: 3 additions & 0 deletions deploy/helm/sumologic/values.yaml
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Expand Up @@ -398,6 +398,9 @@ sumologic:
# units:
# - docker.service

## Behavior specified by journald.conf
journaldDirectory: /var/log/journal

otelcol:
## Extra processors for systemd logs. See https://help.sumologic.com/docs/send-data/kubernetes/collecting-logs/ for details.
extraProcessors: []
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79 changes: 79 additions & 0 deletions tests/helm/logs_test.go
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Expand Up @@ -558,6 +558,30 @@ sumologic:
require.Equal(t, "sumologic|my_logs_namespace", otelConfig.Processors.SourceContainers.Exclude.Namespace)
}

func TestCollectorConfigmapChangeJournaldDirectory(t *testing.T) {
t.Parallel()
templatePath := "templates/logs/collector/otelcol/configmap.yaml"
valuesYaml := `
sumologic:
logs:
systemd:
journaldDirectory: /run/log/journal
`
otelConfigYaml := GetOtelConfigYaml(t, valuesYaml, templatePath)

var otelConfig struct {
Receivers struct {
Journald struct {
Directory string `yaml:"directory"`
} `yaml:"journald"`
} `yaml:"receivers"`
}
err := yaml.Unmarshal([]byte(otelConfigYaml), &otelConfig)
require.NoError(t, err)

require.Equal(t, "/run/log/journal", otelConfig.Receivers.Journald.Directory)
}

func TestCollectorDaemonsetUpdateStrategy(t *testing.T) {
t.Parallel()

Expand Down Expand Up @@ -587,3 +611,58 @@ otellogs:

require.Equal(t, "50%", logsCollectorDaemonset.Spec.UpdateStrategy.RollingUpdate.MaxUnavailable)
}

func TestJournaldDirectoryDaemonsetMounts(t *testing.T) {
t.Parallel()

valuesYaml := `
sumologic:
logs:
systemd:
journaldDirectory: /run/log/journal
`
templatePath := "templates/logs/collector/otelcol/daemonset.yaml"

renderedTemplate, err := RenderTemplateFromValuesStringE(t, valuesYaml, templatePath)
require.NoError(t, err)

var logsCollectorDaemonset struct {
Spec struct {
Template struct {
Spec struct {
Containers []struct {
VolumeMounts []struct {
MountPath string `yaml:"mountPath"`
Name string `yaml:"name"`
} `yaml:"volumeMounts"`
} `yaml:"containers"`
Volumes []struct {
HostPath struct {
Path string `yaml:"path"`
} `yaml:"hostPath"`
Name string `yaml:"name"`
} `yaml:"volumes"`
} `yaml:"spec"`
} `yaml:"template"`
} `yaml:"spec"`
}
err = yaml.Unmarshal([]byte(renderedTemplate), &logsCollectorDaemonset)
require.NoError(t, err)

volumeChangeFound := false
volumeMountChangeFound := false
for _, container := range logsCollectorDaemonset.Spec.Template.Spec.Containers {
for _, volumemount := range container.VolumeMounts {
if volumemount.Name == "runlogjournal" && volumemount.MountPath == "/run/log/journal" {
volumeMountChangeFound = true
}
}
}
for _, volume := range logsCollectorDaemonset.Spec.Template.Spec.Volumes {
if volume.Name == "runlogjournal" && volume.HostPath.Path == "/run/log/journal/" {
volumeChangeFound = true
}
}

require.True(t, volumeChangeFound && volumeMountChangeFound)
}