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Bug 1688621 - [DOCS] Architecture guide fixes
Summary: [DOCS] Architecture guide fixes
Keywords:
Status: NEW
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Documentation
Version: 4.1
Hardware: Unspecified
OS: Unspecified
medium
low
Target Milestone: ---
: 4.1.0
Assignee: Chris Negus
QA Contact: Xiaoli Tian
Vikram Goyal
URL:
Whiteboard:
Depends On:
Blocks: 1686987
TreeView+ depends on / blocked
 
Reported: 2019-03-14 06:11 UTC by Vikram Goyal
Modified: 2019-03-14 07:01 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
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Description Vikram Goyal 2019-03-14 06:11:35 UTC
https://docs.openshift.com/container-platform/4.0/architecture/architecture.html#node-management-architecture

1.
"OpenShift Container Platform employs three DaemonSets and controllers to simplify node management:"
--->
OpenShift Container Platform employs three DaemonSets and controllers in namaspace openshift-machine-config-operator to simplify node management:

2.
"The masters also run the machine-config-controller process that monitors all of the cluster nodes"
--->
A master also runs the machine-config-controller process that monitors all of the cluster nodes
I only see one machine-config-controller pod.

# oc get pod -n openshift-machine-config-operator
NAME                                         READY   STATUS    RESTARTS   AGE
machine-config-controller-75fcf4d666-jnksg   1/1     Running   0          149m
machine-config-daemon-8jg2c                  1/1     Running   0          143m
machine-config-daemon-dghn7                  1/1     Running   0          149m
machine-config-daemon-vxw6z                  1/1     Running   0          149m
machine-config-daemon-wd2hx                  1/1     Running   0          143m
machine-config-daemon-wzqtz                  1/1     Running   0          149m
machine-config-daemon-zgqqh                  1/1     Running   0          143m
machine-config-operator-6b6864f44f-ltscc     1/1     Running   0          150m
machine-config-server-2cg96                  1/1     Running   0          149m
machine-config-server-98xwl                  1/1     Running   0          149m
machine-config-server-gl2vw                  1/1     Running   0          149m


“The machine-config-server provides configurations to nodes as they join the cluster.”
--->
The machine-config-server running on masters provides configurations to nodes as they join the cluster.

“To list all KubeletConfigs:”
Suggest to Add a description for kubletConfig (includes what’s the relation to MachineConfig) because it is the first time to see this resource in the doc. Moreover, there is no such resource after installation:

# oc get kubeletconfigs
No resources found.


3.
https://docs.openshift.com/container-platform/4.0/architecture/web-console.html
“The web console runs as a pod on the master.”
-->
The web console runs as a pod on masters.


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