Unable to deploy k8s example on openshift 4.16

[frzifus]

By default OpenShift does not allow writing the root directory. Thats why the data dirs for grafana, prometheus and loki can not be created and the pod never becomes ready.

Logs

grafana

logger=featuremgmt t=2024-10-16T09:08:46.588576128Z level=info msg=FeatureToggles cloudWatchNewLabelParsing=true cloudWatchCrossAccountQuerying=true logsExploreTableVisualisation=true logRowsPopoverMenu=true lokiMetricDataplane=true exploreMetrics=true publicDashboards=true alertingNoDataErrorExecution=true addFieldFromCalculationStatFunctions=true tlsMemcached=true recordedQueriesMulti=true prometheusAzureOverrideAudience=true prometheusConfigOverhaulAuth=true influxdbBackendMigration=true lokiQueryHints=true panelMonitoring=true lokiStructuredMetadata=true kubernetesPlaylists=true managedPluginsInstall=true prometheusDataplane=true transformationsVariableSupport=true topnav=true cloudWatchRoundUpEndTime=true correlations=true alertingSimplifiedRouting=true recoveryThreshold=true angularDeprecationUI=true ssoSettingsApi=true prometheusMetricEncyclopedia=true alertingInsights=true nestedFolders=true autoMigrateXYChartPanel=true awsAsyncQueryCaching=true dataplaneFrontendFallback=true logsContextDatasourceUi=true transformationsRedesign=true lokiQuerySplitting=true annotationPermissionUpdate=true groupToNestedTableTransformation=true logsInfiniteScrolling=true dashgpt=true formatString=true
Error: ✗ failed to connect to database: mkdir /otel-lgtm/grafana/data: permission denied

Loki

mkdir /loki: permission denied
error initialising module: ruler-storage
github.com/grafana/dskit/modules.(*Manager).initModule
	/src/loki/vendor/github.com/grafana/dskit/modules/modules.go:138
github.com/grafana/dskit/modules.(*Manager).InitModuleServices
	/src/loki/vendor/github.com/grafana/dskit/modules/modules.go:108
github.com/grafana/loki/v3/pkg/loki.(*Loki).Run
	/src/loki/pkg/loki/loki.go:490
main.main
	/src/loki/cmd/loki/main.go:129
runtime.main
	/usr/local/go/src/runtime/proc.go:271
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:1695
level=info ts=2024-10-16T09:10:33.236996873Z caller=main.go:126 msg="Starting Loki" version="(version=3.2.0, branch=k218, revision=659f5421)"
level=info ts=2024-10-16T09:10:33.237271697Z caller=main.go:127 msg="Loading configuration file" filename=./loki-config.yaml

prometheus

ts=2024-10-16T09:28:53.459Z caller=query_logger.go:114 level=error component=activeQueryTracker msg="Error opening query log file" file=/data/prometheus/queries.active err="open /data/prometheus/queries.active: no such file or directory"
panic: Unable to create mmap-ed active query log

goroutine 1 [running]:
github.com/prometheus/prometheus/promql.NewActiveQueryTracker({0x7fffe0fa2a69, 0x10}, 0x14, {0x451ec40, 0xc000739090})
	/app/promql/query_logger.go:146 +0x425
main.main()
	/app/cmd/prometheus/main.go:776 +0x891e
sh-5.1$ mkdir /data/prometheus
mkdir: cannot create directory '/data/prometheus': No such file or directory