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Clarified and attempted to improve flow

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Explicit > Implicit
The page felt very disjointed and as with the others, if you landed on the page from a search it wasn't clear how to add add-ons so I attempted to clarify this and improve the flow of the page.
Turned the portion that read like un-bulleted bullet points into bullet points, but this is still lacking an explanation on best practice for removing an addon and those bullets could use some elucidation.
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Tejeev
2019-10-21 05:25:26 -07:00
committed by Denise
parent f9055c38fb
commit 80abac703f
1 changed files with 7 additions and 9 deletions
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content/rke/latest/en/config-options/add-ons/_index.md
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@@ -3,22 +3,20 @@ title: Add-Ons
weight: 260
---
RKE supports pluggable add-ons. Add-ons are used to deploy several cluster components including:
RKE supports configuring pluggable add-ons in the cluster YML. Add-ons are used to deploy several cluster components including:
* [Network plug-ins]({{< baseurl >}}/rke/latest/en/config-options/add-ons/network-plugins/)
* [Ingress controller]({{< baseurl >}}/rke/latest/en/config-options/add-ons/ingress-controllers/)
* [DNS provider]({{< baseurl >}}/rke/latest/en/config-options/add-ons/dns/)
* [Metrics Server]({{< baseurl >}}/rke/latest/en/config-options/add-ons/metrics-server/)
The images used for these add-ons under the [`system_images` directive]({{< baseurl >}}/rke/latest/en/config-options/system-images/). For each Kubernetes version, there are default images associated with each add-on, but these can be overridden by changing the image tag in `system_images`.
These add-ons require images that can be found under the [`system_images` directive]({{< baseurl >}}/rke/latest/en/config-options/system-images/). For each Kubernetes version, there are default images associated with each add-on, but these can be overridden by changing the image tag in `system_images`.
In addition to these pluggable add-ons, you can specify an add-on that you want deployed after the cluster deployment is complete.
RKE only adds additional add-ons when using `rke up` multiple times. RKE does **not** support removing of cluster add-ons when doing `rke up` with a different list of add-ons.
As of v0.1.8, RKE will update an add-on if it is the same name.
Prior to v0.1.8, update any add-ons by using `kubectl edit`.
There are a few things worth noting:
* In addition to these pluggable add-ons, you can specify an add-on that you want deployed after the cluster deployment is complete.
* RKE only adds additional add-ons when using `rke up` multiple times. RKE does **not** support removing of cluster add-ons when doing `rke up` with a different list of add-ons.
* As of v0.1.8, RKE will update an add-on if it is the same name.
* Prior to v0.1.8, update any add-ons by using `kubectl edit`.
## Critical and Non-Critical Add-ons