55 lines
1.6 KiB
Markdown
55 lines
1.6 KiB
Markdown
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### Introduction
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Installs the Tech Preview LokiStack for cluster logging using local QNAP NAS for object storage.
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Installation is based on docs here:
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https://github.com/grafana/loki/blob/main/operator/docs/forwarding_logs_to_gateway.md#openshift-logging
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# Accessing logs
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You can access the logs using the logcli tool from grafana:
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https://github.com/grafana/loki/releases/tag/v2.5.0
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Example queries:
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View raw application logs:
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```
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export LOKI_ADDR=http://lokistack-openshift-logging.apps.home.ocplab.com/api/logs/v1/application
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logcli --bearer-token="$(oc whoami -t)" query '{kubernetes_namespace_name="product-catalog-dev"}'
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```
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View applicatons logs textually without JSON:
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```
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export LOKI_ADDR=http://lokistack-openshift-logging.apps.home.ocplab.com/api/logs/v1/application
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logcli --bearer-token="$(oc whoami -t)" query '{kubernetes_namespace_name="product-catalog-dev", kubernetes_container_name="server"}' --output=raw | jq '."@timestamp",.kubernetes.pod_name,.level,.message' | paste - - - -
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```
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View infrastructure logs:
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```
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export LOKI_ADDR=http://lokistack-openshift-logging.apps.home.ocplab.com/api/logs/v1/infrastructure
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logcli --bearer-token="$(oc whoami -t)" query '{kubernetes_namespace_name="openshift-logging"}'
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```
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### Storage Secret
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You will need a storage secret for your S3 bucket for Loki to use, format of secret is as follows:
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```
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apiVersion: v1
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data:
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access_key_id: XXXXXX
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access_key_secret: XXXXXX
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bucketnames: XXXXXX
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endpoint: XXXXXXXXXXXX
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kind: Secret
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metadata:
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name: loki-storage
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namespace: openshift-logging
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```
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The sealed secret here is referencing Minio running on my QNAP NAS so non AWS S3 buckets do work fine.
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