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Chapter 1. Audit logs in Red Hat Developer Hub

Audit logs are a chronological set of records documenting the user activities, system events, and data changes that affect your Red Hat Developer Hub users, administrators, or components. Administrators can view Developer Hub audit logs in the OpenShift Container Platform web console to monitor scaffolder events, changes to the RBAC system, and changes to the Catalog database. Audit logs include the following information:

  • Name of the audited event
  • Actor that triggered the audited event, for example, terminal, port, IP address, or hostname
  • Event metadata, for example, date, time
  • Event status, for example, success, failure
  • Severity levels, for example, info, debug, warn, error

You can use the information in the audit log to achieve the following goals:

Enhance security
Trace activities, including those initiated by automated systems and software templates, back to their source. Know when software templates are executed, as well as the details of application and component installations, updates, configuration changes, and removals.
Automate compliance
Use streamlined processes to view log data for specified points in time for auditing purposes or continuous compliance maintenance.
Debug issues
Use access records and activity details to fix issues with software templates or plugins.
Note

Audit logs are not forwarded to the internal log store by default because this does not provide secure storage. You are responsible for ensuring that the system to which you forward audit logs is compliant with your organizational and governmental regulations, and is properly secured.

Additional resources

1.1. Configuring audit logs for Developer Hub on OpenShift Container Platform

Use the OpenShift Container Platform web console to configure the following OpenShift Container Platform logging components to use audit logging for Developer Hub:

Logging deployment
Configure the logging environment, including both the CPU and memory limits for each logging component. For more information, see Red Hat OpenShift Container Platform - Configuring your Logging deployment.
Logging collector
Configure the spec.collection stanza in the ClusterLogging custom resource (CR) to use a supported modification to the log collector and collect logs from STDOUT. For more information, see Red Hat OpenShift Container Platform - Configuring the logging collector.
Log forwarding
Send logs to specific endpoints inside and outside your OpenShift Container Platform cluster by specifying a combination of outputs and pipelines in a ClusterLogForwarder CR. For more information, see Red Hat OpenShift Container Platform - Enabling JSON log forwarding and Red Hat OpenShift Container Platform - Configuring log forwarding.

1.2. Viewing audit logs in Developer Hub

Administrators can view, search, filter, and manage the log data from the Red Hat OpenShift Container Platform web console. You can filter audit logs from other log types by using the isAuditLog field.

Prerequisites

  • You are logged in as an administrator in the OpenShift Container Platform web console.

Procedure

  1. From the Developer perspective of the OpenShift Container Platform web console, click the Topology tab.
  2. From the Topology view, click the pod that you want to view audit log data for.
  3. From the pod panel, click the Resources tab.
  4. From the Pods section of the Resources tab, click View logs.
  5. From the Logs view, enter isAuditLog into the Search field to filter audit logs from other log types. You can use the arrows to browse the logs containing the isAuditLog field.

1.2.1. Audit log fields

Developer Hub audit logs can include the following fields:

eventName
The name of the audited event.
actor

An object containing information about the actor that triggered the audited event. Contains the following fields:

actorId
The name/id/entityRef of the associated user or service. Can be null if an unauthenticated user accesses the endpoints and the default authentication policy is disabled.
ip
The IP address of the actor (optional).
hostname
The hostname of the actor (optional).
client
The user agent of the actor (optional).
stage
The stage of the event at the time that the audit log was generated, for example, initiation or completion.
status
The status of the event, for example, succeeded or failed.
meta
An optional object containing event specific data, for example, taskId.
request

An optional field that contains information about the HTTP request sent to an endpoint. Contains the following fields:

method
The HTTP method of the request.
query
The query fields of the request.
params
The params fields of the request.
body
The request body. The secrets provided when creating a task are redacted and appear as *.
url
The endpoint URL of the request.
response

An optional field that contains information about the HTTP response sent from an endpoint. Contains the following fields:

status
The status code of the HTTP response.
body
The contents of the request body.
isAuditLog
A flag set to true to differentiate audit logs from other log types.
errors
A list of errors containing the name, message and potentially the stack field of the error. Only appears when status is failed.

1.2.2. Scaffolder events

Developer Hub audit logs can include the following scaffolder events:

ScaffolderParameterSchemaFetch
Tracks GET requests to the /v2/templates/:namespace/:kind/:name/parameter-schema endpoint which return template parameter schemas
ScaffolderInstalledActionsFetch
Tracks GET requests to the /v2/actions endpoint which grabs the list of installed actions
ScaffolderTaskCreation
Tracks POST requests to the /v2/tasks endpoint which creates tasks that the scaffolder executes
ScaffolderTaskListFetch
Tracks GET requests to the /v2/tasks endpoint which fetches details of all tasks in the scaffolder.
ScaffolderTaskFetch
Tracks GET requests to the /v2/tasks/:taskId endpoint which fetches details of a specified task :taskId
ScaffolderTaskCancellation
Tracks POST requests to the /v2/tasks/:taskId/cancel endpoint which cancels a running task
ScaffolderTaskStream
Tracks GET requests to the /v2/tasks/:taskId/eventstream endpoint which returns an event stream of the task logs of task :taskId
ScaffolderTaskEventFetch
Tracks GET requests to the /v2/tasks/:taskId/events endpoint which returns a snapshot of the task logs of task :taskId
ScaffolderTaskDryRun
Tracks POST requests to the /v2/dry-run endpoint which creates a dry-run task. All audit logs for events associated with dry runs have the meta.isDryLog flag set to true.
ScaffolderStaleTaskCancellation
Tracks automated cancellation of stale tasks
ScaffolderTaskExecution
Tracks the initiation and completion of a real scaffolder task execution (will not occur during dry runs)
ScaffolderTaskStepExecution
Tracks initiation and completion of a scaffolder task step execution
ScaffolderTaskStepSkip
Tracks steps skipped due to if conditionals not being met
ScaffolderTaskStepIteration
Tracks the step execution of each iteration of a task step that contains the each field.

1.2.3. Catalog events

Developer Hub audit logs can include the following catalog events:

CatalogEntityAncestryFetch
Tracks GET requests to the /entities/by-name/:kind/:namespace/:name/ancestry endpoint, which returns the ancestry of an entity
CatalogEntityBatchFetch
Tracks POST requests to the /entities/by-refs endpoint, which returns a batch of entities
CatalogEntityDeletion
Tracks DELETE requests to the /entities/by-uid/:uid endpoint, which deletes an entity
Note

If the parent location of the deleted entity is still present in the catalog, then the entity is restored in the catalog during the next processing cycle.

CatalogEntityFacetFetch
Tracks GET requests to the /entity-facets endpoint, which returns the facets of an entity
CatalogEntityFetch
Tracks GET requests to the /entities endpoint, which returns a list of entities
CatalogEntityFetchByName
Tracks GET requests to the /entities/by-name/:kind/:namespace/:name endpoint, which returns an entity matching the specified entity reference, for example, <kind>:<namespace>/<name>
CatalogEntityFetchByUid
Tracks GET requests to the /entities/by-uid/:uid endpoint, which returns an entity matching the unique ID of the specified entity
CatalogEntityRefresh
Tracks POST requests to the /entities/refresh endpoint, which schedules the specified entity to be refreshed
CatalogEntityValidate
Tracks POST requests to the /entities/validate endpoint, which validates the specified entity
CatalogLocationCreation
Tracks POST requests to the /locations endpoint, which creates a location
Note

A location is a marker that references other places to look for catalog data.

CatalogLocationAnalyze
Tracks POST requests to the /locations/analyze endpoint, which analyzes the specified location
CatalogLocationDeletion
Tracks DELETE requests to the /locations/:id endpoint, which deletes a location and all child entities associated with it
CatalogLocationFetch
Tracks GET requests to the /locations endpoint, which returns a list of locations
CatalogLocationFetchByEntityRef
Tracks GET requests to the /locations/by-entity endpoint, which returns a list of locations associated with the specified entity reference
CatalogLocationFetchById
Tracks GET requests to the /locations/:id endpoint, which returns a location matching the specified location ID
QueriedCatalogEntityFetch
Tracks GET requests to the /entities/by-query endpoint, which returns a list of entities matching the specified query

1.3. Audit log file rotation in Red Hat Developer Hub

Logging to a rotating file in Red Hat Developer Hub is helpful for persistent storage of audit logs.

Persistent storage ensures that the file remains intact even after a pod is restarted. Audit log file rotation creates a new file at regular intervals, with only new data being written to the latest file.

Default settings

Audit logging to a rotating file is disabled by default. When it is enabled, the default behavior changes to:

  • Rotate logs at midnight (local system timezone).
  • Log file format: redhat-developer-hub-audit-%DATE%.log.
  • Log files are stored in /var/log/redhat-developer-hub/audit.
  • No automatic log file deletion.
  • No gzip compression of archived logs.
  • No file size limit.

Audit logs are written in the /var/log/redhat-developer-hub/audit directory.

Log file names
Audit log file names are in the following format:

redhat-developer-hub-audit-%DATE%.log

where %DATE% is the format specified in auditLog.rotateFile.dateFormat. You can customize file names when you configure file rotation.

File rotation date and frequency

Supported auditLog.rotateFile.frequency options include:

  • daily: Rotate daily at 00:00 local time
  • Xm: Rotate every X minutes (where X is a number between 0 and 59)
  • Xh: Rotate every X hours (where X is a number between 0 and 23)
  • test: Rotate every 1 minute
  • custom: Use dateFormat to set the rotation frequency (default if frequency is not specified)

If frequency is set to Xh, Xm or test, the dateFormat setting must be configured in a format that includes the specified time component. Otherwise, the rotation might not work as expected.

For example, use dateFormat: 'YYYY-MM-DD-HH for hourly rotation, and dateFormat: 'YYYY-MM-DD-HH-mm for minute rotation.

Example minute rotation:

auditLog:
  rotateFile:
    # If you want to rotate the file every 17 minutes
    dateFormat: 'YYYY-MM-DD-HH-mm'
    frequency: '17m'

The dateFormat setting configures both the %DATE% in logFileName and the file rotation frequency if frequency is set to custom. The default format is YYYY-MM-DD, meaning daily rotation. Supported values are based on Moment.js formats.

If the frequency is set to custom, then rotations take place when the date string, which is represented in the specified dateFormat, changes.

Archive and delete
By default, log files are not archived or deleted.
Enable and configure audit file rotation
If you are an administrator of Developer Hub, you can enable file rotation for audit logs, and configure the file log location, name format, frequency, log file size, retention policy, and archiving.

Example audit log file rotation configuration

auditLog:
  rotateFile:
    enabled: true 1
    logFileDirPath: /custom-path 2
    logFileName: custom-audit-log-%DATE%.log 3
    frequency: '12h' 4
    dateFormat: 'YYYY-MM-DD' 5
    utc: false 6
    maxSize: 100m 7
    maxFilesOrDays: 14 8
    zippedArchive: true 9

1
Set enabled to true to use audit log file rotation. By default, it is set to false.
2
Absolute path to the log file. The specified directory is created automatically if it does not exist.
3
Default log file name format.
4
If no frequency is specified, then the default file rotation occurs daily at 00:00 local time.
5
Default date format.
6
Set utc to true to use UTC time for dateFormat instead of local time.
7
Sets a maximum file size limit for the audit log. In this example, the maximum size is 100m.
8
If set to number of files, for example 14, then it deletes the oldest log when there are more than 14 log files. If set to number of days, for example 5d, then it deletes logs older than 5 days.
9
Archive and compress rotated logs using gzip. The default value is false.
Note
  • By default, log files are not archived or deleted. If log deletion is enabled, then a .<sha256 hash>-audit.json is generated in the directory where the logs are to track generated logs. Any log file not contained in the directory is not subject to automatic deletion.
  • A new .<sha256 hash>-audit.json file is generated each time the backend starts, which causes previous audit logs to stop being tracked or deleted, except for those still in use by the current backend.
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