January 2019
Intermediate to advanced
484 pages
11h 48m
English
Content preview from DevOps with Kubernetes - Second Edition
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Problems with ephemeral and persistent volume settings
You may determine your application as stateless because the datastore function is handled by another pod or system. However, there are some pitfalls in that sometimes; applications actually store important files that you aren't aware of. For example, Grafana (https://grafana.com/grafana) connects time series datasources such as Graphite (https://graphiteapp.org) and InfluxDB (https://www.influxdata.com/time-series-database/), so people may misunderstand that Grafana is a stateless application.
Actually, Grafana itself also uses databases to store user, organization, and dashboard metadata. By default, Grafana uses SQLite3 components and stores the database as /var/lib/grafana/grafana.db ...
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