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update README to be more k8s newbie friendly :)

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2021-02-09 12:04:19 +02:00
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@@ -9,18 +9,32 @@ and backup/HA memsql can provide.
with ENV. with ENV.
* cert config exists and can be enabled, but not been tested. * cert config exists and can be enabled, but not been tested.
### current instances config (AIO): ### prerequisites
1 instance for each type (master/filer/volume/s3) kubernetes node have labels which help to define which node(Host) will run which pod.
To avoid multiple volume servers on the same node, apply these node labels: s3/filer/master needs the label **sw-backend=true**
* sw-volume: true (for volume instance, specific tag)
* sw-backend: true (for all others, as they less resource demanding) volume need the label **sw-volume=true**
to label a node to be able to run all pod types in k8s:
``` ```
kubectl label node YOUR_NODE_NAME sw-volume=true,sw-backend=true kubectl label node YOUR_NODE_NAME sw-volume=true,sw-backend=true
``` ```
on production k8s deployment you will want each pod to have a different host,
especially the volume server & the masters, currently all pods (master/volume/filer)
have anti-affinity rule to disallow running multiple pod type on the same host.
if you still want to run multiple pods of the same type (master/volume/filer) on the same host
please set/update the corresponding affinity rule in values.yaml to an empty one:
```affinity: ""```
### current instances config (AIO):
1 instance for each type (master/filer+s3/volume)
you can update the replicas count for each node type in values.yaml, you can update the replicas count for each node type in values.yaml,
need to add more nodes with the corresponding label. need to add more nodes with the corresponding labels.
most of the configuration are available through values.yaml most of the configuration are available through values.yaml