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Query and explore logs in Grafana Loki via the logcli command-line tool. Use when a user asks to pull logs for analysis.
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Baseado na classificação ocupacional SOC
| name | grafana-loki-logcli |
| description | Query and explore logs in Grafana Loki via the logcli command-line tool. Use when a user asks to pull logs for analysis. |
| allowed-tools | Bash(logcli:*) |
The logcli is a command-line client for Grafana Loki that runs LogQL queries against a Loki instance.
Requirements: The logcli CLI must be pre-installed on the computer.
When running "logcli query" always use -z UTC to request the UTC timezone of the output.
Pass the --output raw unless the use case requires jsonl.
When a user refers to a date or a range of dates, use the 2021-01-19T10:00:00Z format to pass the CLI. Always assume
the time is UTC unless specified explicitly.
To request all available log entries pass the --limit 0. Consider pipe'ing or tee'ing the output to a temporal text file
to run the analysis on the fetched data offline.
Run a LogQL query against the ops Loki instance:
logcli --addr=https://logs-ops-002.grafana-ops.net \
--username=29 --password=`cat $HOME/.config/gcom/gcom-ops.token` \
query '<query>'
The username "29" is the well-known "ops tenant". The API password for the tenant seats in the mentioned file.
Use the "ops" instance to pull logs for all non-dev workloads.
Run a LogQL query against the dev Loki instance:
logcli --addr=https://logs-dev-005.grafana-dev.net \
--username=29 --password=`cat $HOME/.config/gcom/gcom-dev.token` \
query '<query>'
Query all "info" level logs from the "compactor" container in the namespace "mimir-dev-14" between 8/10 00:00 and 9/10 00:00 (not inclusive). Request the output in the jsonl format:
logcli --addr=https://logs-dev-005.grafana-dev.net \
--username=29 --password=$(cat $HOME/.config/gcom/gcom-dev.token) \
query '{namespace="mimir-dev-14", container="compactor"} |= `level=info`' \
--from '2025-10-08T00:00:00Z' --to '2025-10-09T00:00:00Z' -z UTC -o jsonl --limit 0
Run logcli help to read the reference. Running logcli help <command> shows the reference for a specific sub-command.
The complete online reference is available at https://grafana.com/docs/loki/latest/query/logcli/getting-started/