# Version 2 : server high availability

**URL:** <https://forums.suse.com/t/version-2-server-high-availability/10207>\
**Category:** General\
**Created:** [April 28, 2018, 2:34pm UTC](https://forums.suse.com/t/version-2-server-high-availability/10207 "2018-04-28T14:34:43Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![fadomire](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/fadomire/32/3965_2.png) [@fadomire](https://forums.suse.com/u/fadomire)\
**Post date:** [April 28, 2018, 2:34pm UTC](https://forums.suse.com/t/version-2-server-high-availability/10207/1 "2018-04-28T14:34:43Z")

</div>

i read that rancher 2.0 does not use mysql anymore

“Rancher server is now 100% written in Go and no longer requires a MySQL database.”  
[https://rancher.com/announcing-rancher-2-0-tech-preview-2/](https://rancher.com/announcing-rancher-2-0-tech-preview-2/)

i have 3 physical servers

i would like to deploy rancher in HA (high availability mode), so i need rancher/server to be deployed on the 3 hosts

then after, the 3 hosts would also be rancher hosts, nodes to distribute work load

currently i can’t manage to have 3 rancher server (ui) available and recognizing as a cluster to avoid single point of failure

any hints / ideas on that ?

---

<div class="post-metadata">

**Author:** ![jetatomic](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/jetatomic/32/3939_2.png) [@jetatomic](https://forums.suse.com/u/jetatomic)\
**Post date:** [April 28, 2018, 6:42pm UTC](https://forums.suse.com/t/version-2-server-high-availability/10207/2 "2018-04-28T18:42:26Z")

</div>

I haven’t tested it yet, and am not 100% clear on the process, but “Ability to launch Rancher as a deployment in Kubernetes to support HA” was added in [v2.0.0-beta4](https://github.com/rancher/rancher/releases/tag/v2.0.0-beta4).

> Using RKE’s pluggable user addons, it’s possible to deploy Rancher 2.0 server in HA with a single command…

> **[GitHub - rancher/rke: Rancher Kubernetes Engine (RKE), an extremely simple,...](https://github.com/rancher/rke/#deploying-rancher-20-using-rke)**
>
> Rancher Kubernetes Engine (RKE), an extremely simple, lightning fast Kubernetes distribution that runs entirely within containers. - GitHub - rancher/rke: Rancher Kubernetes Engine (RKE), an extrem...

---

<div class="post-metadata">

**Author:** ![fadomire](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/fadomire/32/3965_2.png) [@fadomire](https://forums.suse.com/u/fadomire)\
**Post date:** [April 29, 2018, 2:56am UTC](https://forums.suse.com/t/version-2-server-high-availability/10207/3 "2018-04-29T02:56:55Z")

</div>

thanks for the reply, indeed i saw that during my search but was not sure i understood it correctly and no clues on the process neither

like when do i add the configmap with the addon and where for example

---

<div class="post-metadata">

**Author:** ![fadomire](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/fadomire/32/3965_2.png) [@fadomire](https://forums.suse.com/u/fadomire)\
**Post date:** [April 29, 2018, 3:10am UTC](https://forums.suse.com/t/version-2-server-high-availability/10207/4 "2018-04-29T03:10:11Z")

</div>

rereading the rke readme i guess i get it. before anything, on the linux machine i should config and run rke with the pluggable addon like described

i’ll test that