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Sergey Dudoladov 2019-01-29 23:15:43 +01:00
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Note that the Kubernetes version 1.13 brings [taint-based eviction](https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/#taint-based-evictions) to the beta stage and enables it by default.
Postgres pods by default receive tolerations for `unreachable` and `noExecute` taints with the timeout of `5m`.
Depending on you setup, you may want to adjust these parameters to prevent master pods from being evicted by Kubernetes runtime.
To prevent eviction completely, specify the toleration without specifying the `tolerationSeconds` value (similar to how Kubernetes own DaemonSets are configured)
## Custom Pod Environment Variables
It is possible to configure a ConfigMap which is used by the Postgres pods as