Prometheus Scrape Config — Relabelling and Federation (yaml)
Three scrape jobs with the parts that actually matter: relabel_configs rewriting a target label with a capture group, metric_relabel_configs dropping the two unbounded labels from the cardinality fixture, honor_timestamps for the textfile collector and a federation job with a match[] selector.
# Prometheus scrape configuration for the shop namespace.
global:
scrape_interval: 15s
scrape_timeout: 10s
evaluation_interval: 30s
external_labels:
cluster: shop-staging
region: eu-west-1
rule_files:
- /etc/prometheus/rules/*.yaml
scrape_configs:
- job_name: shop-services
metrics_path: /metrics
scheme: http
static_configs:
- targets:
- 192.0.2.11:9090
- 192.0.2.12:9090
- 192.0.2.21:9090
- 192.0.2.22:9090
- 192.0.2.31:9090
labels:
env: staging
relabel_configs:
- source_labels: [__address__]
regex: '192\.0\.2\.(\d+):\d+'
target_label: host_octet
replacement: node-${1}
metric_relabel_configs:
# Drop the two unbounded labels that produced the cardinality fixture.
- source_labels: [__name__]
regex: api_request_duration_seconds_count
action: labeldrop
- regex: '(customer_id|session_id)'
action: labeldrop
- source_labels: [__name__]
regex: 'go_memstats_.*'
action: drop
- job_name: node-exporter-textfile
metrics_path: /metrics
honor_timestamps: true
static_configs:
- targets: [192.0.2.11:9100]
- job_name: federated
honor_labels: true
metrics_path: /federateSpecifications
- Jobs
- 3
- Targets
- 7
- Relabel Rules
- 1
- Metric Relabel Rules
- 3
- Has Federation
- true
- Honor Timestamps
- true
- Drops Cardinality Labels
- true
Testing contract
Expected to pass- Scenario
- Load the configuration and apply its relabelling rules to the cardinality fixture.
- Expected result
- Three jobs and seven targets load, and applying the labeldrop rules to the 2,000-series fixture collapses it to the bounded label set of service, route and region.
What is a .yaml file?
YAML (YAML Ain't Markup Language) is a human-readable data-serialization format using indentation, key-value pairs, and lists, and is a superset of JSON. It supports comments, anchors, and multiple documents per file, favoring readability for configuration. Its indentation sensitivity makes it error-prone to hand-edit.
How to use this file
Use an example YAML file to test config parsers, indentation and anchor handling, multi-document streams, and safe-loading to avoid arbitrary object construction.
How to use this file for testing
“Prometheus Scrape Config — Relabelling and Federation (yaml)” is a deterministic Novus Examples fixture for Observability, Config parsing, Config testing. Structured and plain-text telemetry with known timestamps, levels, request identifiers, and error states for testing log ingestion, correlation, dashboards, and alert pipelines.
Documented properties for this file: YAML · 1,430 bytes. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
Telemetry fixtures use fixed trace IDs, span IDs, and timestamps so ingestion is reproducible run to run. Point your collector, parser, or query layer at the file and assert the documented span tree, metric families, or severity mix; service and host names are invented.
Code examples
import yaml # pip install pyyaml
with open("prometheus-scrape-config.yaml") as f:
data = yaml.safe_load(f)
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