Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
tenant
stage
The tenant stage is an action stage that sets the tenant ID for the log entry
picking it from a field in the extracted data map. If the field is missing, the
default promtail client tenant_id
will
be used.
Schema
tenant:
# Either label, source or value config option is required, but not all (they
# are mutually exclusive).
# Name from labels to whose value should be set as tenant ID.
[ label: <string> ]
# Name from extracted data to whose value should be set as tenant ID.
[ source: <string> ]
# Value to use to set the tenant ID when this stage is executed. Useful
# when this stage is included within a conditional pipeline with "match".
[ value: <string> ]
Example: extract the tenant ID from a structured log
For the given pipeline:
pipeline_stages:
- json:
expressions:
customer_id: customer_id
- tenant:
source: customer_id
Given the following log line:
{"customer_id":"1","log":"log message\n","stream":"stderr","time":"2019-04-30T02:12:41.8443515Z"}
The first stage would extract customer_id
into the extracted map with a value of
1
. The tenant stage would set the X-Scope-OrgID
request header (used by Loki to
identify the tenant) to the value of the customer_id
extracted data, which is 1
.
Example: override the tenant ID with the configured value
For the given pipeline:
pipeline_stages:
- json:
expressions:
app:
message:
- labels:
app:
- match:
selector: '{app="api"}'
stages:
- tenant:
value: "team-api"
- output:
source: message
Given the following log line:
{"app":"api","log":"log message\n","stream":"stderr","time":"2019-04-30T02:12:41.8443515Z"}
The pipeline would:
- Decode the JSON log
- Set the label
app="api"
- Process the
match
stage checking if the{app="api"}
selector matches and - whenever it matches - run the sub stages. Thetenant
sub stage would override the tenant with the value"team-api"
.
Example: extract the tenant ID from kubernetes sd
scrape_configs:
- job_name: kubernetes-pods-name
kubernetes_sd_configs:
- role: pod
relabel_configs:
- action: replace
source_labels:
- __meta_kubernetes_namespace
target_label: namespace
pipeline_stages:
- match:
selector: '{namespace=".+"}'
stages:
- tenant:
label: "namespace"
- output:
source: message