208 lines
5.5 KiB
Plaintext
208 lines
5.5 KiB
Plaintext
---
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layout: docs
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page_title: Audit Logging (Enterprise)
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description: >-
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Audit logging secures Consul by capturing a record of HTTP API access and usage. Learn how to format agent configuration files to enable audit logs and specify the path to save logs to.
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---
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# Audit Logging
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<EnterpriseAlert>
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This feature requires
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HashiCorp Cloud Platform (HCP) or self-managed Consul Enterprise.
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Refer to the{' '}
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<a href="/consul/docs/enterprise#consul-enterprise-feature-availability">enterprise feature matrix</a>
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{' '}for additional information.
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</EnterpriseAlert>
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With Consul Enterprise v1.8.0+, audit logging can be used to capture a clear and
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actionable log of authenticated events (both attempted and committed) that Consul
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processes via its HTTP API. These events are then compiled into a JSON format for easy export
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and contain a timestamp, the operation performed, and the user who initiated the action.
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Audit logging enables security and compliance teams within an organization to get
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greater insight into Consul access and usage patterns.
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Complete the [Capture Consul Events with Audit Logging](https://learn.hashicorp.com/tutorials/consul/audit-logging) tutorial to learn more about Consul's audit logging functionality,
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For detailed configuration information on configuring the Consul Enterprise's audit
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logging, review the Consul [Audit Log](/docs/agent/config/config-files#audit)
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documentation.
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## Example Configuration
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Audit logging must be enabled on every agent in order to accurately capture all
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operations performed through the HTTP API. To enable logging, add
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the [`audit`](/docs/agent/config/config-files#audit) stanza to the agent's configuration.
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-> **Note**: Consul only logs operations which are initiated via the HTTP API.
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The audit log does not record operations that take place over the internal RPC
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communication channel used for agent communication.
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<Tabs>
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<Tab heading="Log to file">
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The following example configures a destination called "My Sink". Since rotation is enabled,
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audit events will be stored at files named: `/tmp/audit-<TIMESTAMP>.json`. The log file will
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be rotated either every 24 hours, or when the log file size is greater than 25165824 bytes
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(24 megabytes).
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<CodeTabs>
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```hcl
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audit {
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enabled = true
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sink "My sink" {
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type = "file"
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format = "json"
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path = "/tmp/audit.json"
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delivery_guarantee = "best-effort"
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rotate_duration = "24h"
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rotate_max_files = 15
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rotate_bytes = 25165824
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}
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}
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```
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```json
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{
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"audit": {
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"enabled": true,
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"sink": {
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"My sink": {
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"type": "file",
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"format": "json",
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"path": "/tmp/audit.json",
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"delivery_guarantee": "best-effort",
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"rotate_duration": "24h",
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"rotate_max_files": 15,
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"rotate_bytes": 25165824
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}
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}
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}
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}
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```
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</CodeTabs>
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</Tab>
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<Tab heading="Log to standard out">
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The following example configures a destination called "My Sink" which emits audit
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logs to standard out.
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<CodeTabs>
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```hcl
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audit {
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enabled = true
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sink "My sink" {
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type = "file"
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format = "json"
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path = "/dev/stdout"
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delivery_guarantee = "best-effort"
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}
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}
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```
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```json
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{
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"audit": {
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"enabled": true,
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"sink": {
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"My sink": {
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"type": "file",
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"format": "json",
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"path": "/dev/stdout",
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"delivery_guarantee": "best-effort"
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}
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}
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}
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}
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```
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</CodeTabs>
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</Tab>
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</Tabs>
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## Example Audit Log
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In this example a client has issued an HTTP GET request to look up the `ssh`
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service in the `/v1/catalog/service/` endpoint.
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Details from the HTTP request are recorded in the audit log. The `stage` field
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is set to `OperationStart` which indicates the agent has begun processing the
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request.
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The value of the `payload.auth.accessor_id` field is the accessor ID of the
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[ACL token](/docs/security/acl#tokens) which issued the request.
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<CodeBlockConfig highlight="10">
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```json
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{
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"created_at": "2020-12-08T12:30:29.196365-05:00",
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"event_type": "audit",
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"payload": {
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"id": "e4a20aec-d250-72c4-2aea-454fe8ae8051",
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"version": "1",
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"type": "HTTPEvent",
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"timestamp": "2020-12-08T12:30:29.196206-05:00",
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"auth": {
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"accessor_id": "08f05787-3609-8001-65b4-922e5d52e84c",
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"description": "Bootstrap Token (Global Management)",
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"create_time": "2020-12-01T11:01:51.652566-05:00"
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},
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"request": {
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"operation": "GET",
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"endpoint": "/v1/catalog/service/ssh",
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"remote_addr": "127.0.0.1:64015",
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"user_agent": "curl/7.54.0",
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"host": "127.0.0.1:8500"
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},
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"stage": "OperationStart"
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}
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}
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```
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</CodeBlockConfig>
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After the request is processed, a corresponding log entry is written for the HTTP
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response. The `stage` field is set to `OperationComplete` which indicates the agent
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has completed processing the request.
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<CodeBlockConfig highlight="24">
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```json
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{
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"created_at": "2020-12-08T12:30:29.202935-05:00",
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"event_type": "audit",
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"payload": {
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"id": "1f85053f-badb-4567-d239-abc0ecee1570",
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"version": "1",
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"type": "HTTPEvent",
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"timestamp": "2020-12-08T12:30:29.202863-05:00",
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"auth": {
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"accessor_id": "08f05787-3609-8001-65b4-922e5d52e84c",
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"description": "Bootstrap Token (Global Management)",
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"create_time": "2020-12-01T11:01:51.652566-05:00"
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},
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"request": {
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"operation": "GET",
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"endpoint": "/v1/catalog/service/ssh",
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"remote_addr": "127.0.0.1:64015",
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"user_agent": "curl/7.54.0",
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"host": "127.0.0.1:8500"
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},
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"response": {
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"status": "200"
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},
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"stage": "OperationComplete"
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}
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}
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```
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</CodeBlockConfig>
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