Updates HA kubeadm docs #9066

chuckha · 2018-06-13T22:43:55Z

Signed-off-by: Chuck Ha ha.chuck@gmail.com

k8sio-netlify-preview-bot · 2018-06-13T22:43:58Z

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rdodev · 2018-06-14T00:31:18Z

content/en/docs/setup/independent/high-availability.md

+1. Figure out your pod CIDR. Please read the [CNI network
+   section](/docs/setup/independent/create-cluster-kubeadm/#pod-network) of the
+   docs for more information. Some CNI providers do not require a value to be
+   set. This guide uses calico for no particular reason. Because of this choice


I would phrase this in a more positive way:

"Some CNI providers do not require a value to be set. This guide uses calico for no particular reason."

To something like:

In this in example we have chose to use Calico (please note that some cni providers do not require special pod CIDR).

Feedback on the feedback, I would not state that you're using Calico for "no particular reason."

@MistyHacks exactly. Which is I why I'm suggesting he rephrased it to something more affirmative.

I know we don't want to "pick winners" or "take sides", but there are very valid reason why Calico is a great choice for most use cases.

The whole paragraph/step doesn't hold together very well, and any explanations are extraneous to a task-based doc. Try something like:

1. Find your pod CIDR. For details, see [the CNI network documentation](/docs/setup/independent/create-cluster-kubeadm/#pod-network). This example uses Calico, so the pod CIDR is `192.168.0.0/16`.

(without the code fences -- added them so you could see the whole thing)

rdodev · 2018-06-14T00:46:45Z

content/en/docs/setup/independent/high-availability.md

+
+#### Prerequisites
+
+1. This node must have [kubeadm, kubelet and kubectl][installation] installed.


I'd link and list individually:

This node must have installed

kubeadm

kubelet

kubectl

Bradamant3 · 2018-06-14T02:34:16Z

/assign

(kubeadm-related)

timothysc · 2018-06-14T13:26:24Z

content/en/docs/setup/independent/high-availability.md

-For each master that has been provisioned, follow the [installation guide](/docs/setup/independent/install-kubeadm/) on how to install kubeadm and its dependencies. At the end of this step, you should have all the dependencies installed on each master.
-
-## Setting up an HA etcd cluster
+# Stacked Masters (one etcd member and one control-plane co-located per host)


Having an overview section describing the different deployments would probably be helpful.

+1. This could help the multiple prerequisites issue, too. But you can't put H1s inside a docs page (Hugo has cannibalized them for the page titles). This has to be an H2, and its children H3s or further nested as required. (Take a look at the preview again to see what happens -- H1 doesn't show up in the TOC, and the content isn't displayed in the order you intend.

Also, parenthetical remarks are a bad idea anywhere, but especially in headings. This remark plus the one for external etcd could go nicely in the overview section, though.

timothysc

Let's chat about wordsmithing content together.

/cc @detiber

timothysc · 2018-06-14T13:32:49Z

content/en/docs/setup/independent/high-availability.md

-     ```bash
-     systemctl status etcd
-     ```
+Now we can take that value and put it in `~/.ssh/authorized_keys` of any other host we want to connect to.


I'd add a snippet folks can use to copy keys around.

for host in m1.example.com \ m2.example.com \ m3.example.com; \ do ssh-copy-id -i ~/.ssh/id_rsa.pub $host; \ done

Yes. This should be another numbered step, too:

Add the returned value to ~/.ssh/authorized_keys on the other hosts to connect to:
<Tim's snippet>

timothysc · 2018-06-14T13:34:34Z

content/en/docs/setup/independent/high-availability.md


+This guide assumes calico will be used as the pod network and will therefore use


Why is this here?

timothysc · 2018-06-14T13:37:27Z

content/en/docs/setup/independent/high-availability.md

-     EOF
-     ```
+```
+scp /etc/kubernetes/pki/etcd/ca.crt ubuntu@ETCD_HOST_1:/home/ubuntu


nix the ubuntu name imo , and keep is generic user

timothysc · 2018-06-14T13:38:18Z

content/en/docs/setup/independent/high-availability.md


-    **Note:** If you are using Kubernetes 1.9+, you can replace the `apiserver-count: 3` extra argument with `endpoint-reconciler-type: lease`. For more information, see [the documentation](/docs/admin/high-availability/#endpoint-reconciler).
+### Swizzling certs


Let's just call it copying, that term is non-standard.

YES THANK YOU TIM

Bradamant3

Some rewording changes, a lot of reformatting (template compliance, procedure steps). You know where else to ask questions :-)

Bradamant3 · 2018-06-14T16:29:36Z

content/en/docs/setup/independent/high-availability.md

-For each master that has been provisioned, follow the [installation guide](/docs/setup/independent/install-kubeadm/) on how to install kubeadm and its dependencies. At the end of this step, you should have all the dependencies installed on each master.
-
-## Setting up an HA etcd cluster
+# Stacked Masters (one etcd member and one control-plane co-located per host)


+1. This could help the multiple prerequisites issue, too. But you can't put H1s inside a docs page (Hugo has cannibalized them for the page titles). This has to be an H2, and its children H3s or further nested as required. (Take a look at the preview again to see what happens -- H1 doesn't show up in the TOC, and the content isn't displayed in the order you intend.

Also, parenthetical remarks are a bad idea anywhere, but especially in headings. This remark plus the one for external etcd could go nicely in the overview section, though.

Bradamant3 · 2018-06-14T16:29:51Z

content/en/docs/setup/independent/high-availability.md


-While the first option provides more performance and better hardware isolation, it is also more expensive and requires an additional support burden.
+# External Etcd (etcd members and control-planes are on separate hosts)


Fix H1 and prerequisites, lower-case etcd throughout

Bradamant3 · 2018-06-14T16:32:54Z

content/en/docs/setup/independent/high-availability.md


-1. Install `cfssl` and `cfssljson`:
+# Common Steps


H2. Also sentence case for headings everywhere ("Common steps"). Also not sure this is quite the right wording, but it'll do for now.

Bradamant3 · 2018-06-14T16:33:46Z

content/en/docs/setup/independent/high-availability.md


-### Generate etcd client certs
+### Create an ssh key pair


s/ssh/SSH

This looks like a step, not a heading. See next comment.

Bradamant3 · 2018-06-14T16:56:34Z

content/en/docs/setup/independent/high-availability.md

-cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=client client.json | cfssljson -bare client
+    # The -N flag sets an empty passphrase
+    ssh-keygen -N '' -f ~/.ssh/id_rsa
+    cat ~/.ssh/id_rsa.pub
 ```


Looks as though you deleted the start of this code fence?

Bradamant3 · 2018-06-14T17:24:37Z

content/en/docs/setup/independent/high-availability.md


+This guide assumes calico will be used as the pod network and will therefore use
+some default values, but they will be called out explicitly so replacing calico
+with another pod network is possible.


What about calling this out in a note in the prerequisites? Then we could get rid of the comment about Calico in the Pod CIDR step, too. The note would look something like:

{{< note >}} **Note**: The following examples run Calico as the Pod networking provider. If you run another networking provider, make sure to replace any default values as needed. {{< /note >}}

Bradamant3 · 2018-06-14T17:35:21Z

content/en/docs/setup/independent/high-availability.md


-Only follow this step if your etcd is hosted on dedicated nodes (**Option 1**). If you are hosting etcd on the masters (**Option 2**), you can skip this step since you've already generated the etcd certificates on the masters.
+Please see [setting up an HA etcd cluster using kubeadm](/docs/tasks/administer-cluster/setup-etcd-with-kubeadm).


lines 88-90 should be a numbered listitem instead:

1. [Set up an HA etcd cluster using kubeadm](/docs/tasks/administer-cluster/setup-etcd-with-kubeadm).

Bradamant3 · 2018-06-14T17:38:45Z

content/en/docs/setup/independent/high-availability.md

-     ```
+1. `/etc/kubernetes/pki/etcd/ca.crt`
+1. `/etc/kubernetes/pki/apiserver-etcd-client.crt`
+1. `/etc/kubernetes/pki/apiserver-etcd-client.key`


ll 95-97 (each):
s/1./- (or your preferred character for a bulleted list)

Bradamant3 · 2018-06-14T17:40:39Z

content/en/docs/setup/independent/high-availability.md


-## Run `kubeadm init` on `master0` {#kubeadm-init-master0}
+Here is one way to do it, but there are many reasons why this might not work for
+you. For instance, you may be running any other linux distro.


(continue as block within the numbered list -- lmk if you need help figuring out the markup cuz it's different in Hugo/Blackfriday, although I think there might be OK models in some of the content you deleted). Also edit:

For example, you can run the following:

(note note that I suggest to follow)

Bradamant3 · 2018-06-14T17:41:52Z

content/en/docs/setup/independent/high-availability.md

+scp /etc/kubernetes/pki/etcd/ca.crt ubuntu@ETCD_HOST_1:/home/ubuntu
+scp /etc/kubernetes/pki/apiserver-etcd-client.crt ubuntu@ETCD_HOST_1:/home/ubuntu
+scp /etc/kubernetes/pki/apiserver-etcd-client.key ubuntu@ETCD_HOST_2:/home/ubuntu
+```



Add note here:

"This is an example only. Your environment or Linux distribution might require different commands."

Note markup:

{{< note >}} **Note**: <note_text> {{< /note >}}

chuckha · 2018-06-14T19:03:27Z

ptal @Bradamant3 @timothysc

detiber · 2018-06-14T21:45:08Z

/hold

I need to make a few tweaks to the stacked control plane config, will wrap up after family time :)

detiber · 2018-06-15T02:04:29Z

/hold cancel

chuckha · 2018-06-15T14:07:58Z

content/en/docs/setup/independent/high-availability.md

 title: Creating HA clusters with kubeadm
 content_template: templates/task
 ---

+{{% capture steps %}}'


I need help here. I don't want this but if I don't include a non-empty steps section then I end up with a big error page

edit nvm! taken care of

chuckha · 2018-06-15T14:52:03Z

@Bradamant3 I integrated your changes as best I could but it has changed dramatically since you looked at it. please take a look when you've got time

detiber · 2018-06-15T15:23:40Z

content/en/docs/setup/independent/high-availability.md

+- With an external etcd cluster. This approach requires more infrastructure. The
+control plane nodes and etcd members are separated.
+
+Your clusters must run Kubernetes version 1.11 or later.


@chuckha @Bradamant3 I think we need to reword this, but I'm failing on thinking of a better way to say that this doc will only work for v1.11 and later.

Also, should this be highlighted as a note to draw more attention to this?

I haven't come up with anything better either, but I'll keep working on it.

Maybe a "before you begin" section like this one? https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/

detiber · 2018-06-15T15:27:19Z

content/en/docs/setup/independent/high-availability.md

+You should add the control plane nodes to the load balancer but be aware they
+will fail the health check until the kube-apiserver is running.
+
+## Stacked control plane nodes


@chuckha @Bradamant3 would it make sense (and is it even possible) to hide the two approaches here behind tabs, I think it would make the flow a bit better since there are common before/after steps for both.

Signed-off-by: Chuck Ha <ha.chuck@gmail.com>

mdlinville · 2018-06-20T17:05:15Z

I had to rebase 1.11 on master before the release so I rebased this PR to get it into good shape again.

chuckha · 2018-06-20T18:27:55Z

content/en/docs/setup/independent/high-availability.md

- errordeveloper
- jbeda
-title: Creating HA clusters with kubeadm
+- timothysc


this should be sig-cluster-lifecycle instead of names

chuckha · 2018-06-20T18:30:30Z

content/en/docs/setup/independent/high-availability.md

+    on the apiserver port. It must also allow incoming traffic on its
+    listening port.
+
+1. Add the control plane nodes to the load balancer, but be aware they


We should add a section to ensure our connections through the LB don't time out.

Something like

Confirm the connection is working. A timeout confirms some settings need to be adjusted. A connection refused is ok because the API server is not running yet.

nc -v <load balancer ip> <port> # example: nc -v 10.0.0.0 6443

Signed-off-by: Chuck Ha <ha.chuck@gmail.com>

detiber

lgtm outside of the stray sudo I accidentally left in there 😂

detiber · 2018-06-20T19:31:41Z

content/en/docs/setup/independent/high-availability.md

+   * `CP0_HOSTNAME`
+   * `CP0_IP`
+
+1. Run `sudo kubeadm init --config kubeadm-config.yaml`


stray sudo left over, should be removed since we are telling users that commands should be run as root

I'll remove in the commit I'm finishing now

detiber · 2018-06-20T20:19:27Z

content/en/docs/setup/independent/high-availability.md

+- `/etc/kubernetes/admin.conf`
+
+In the following example, replace
+`CONTROL_PLANE_IP` with the IP addresses of the other control plane nodes.


this should be CONTROL_PLANE_IPS rather than CONTROL_PLANE_IP

detiber · 2018-06-20T20:21:56Z

content/en/docs/setup/independent/high-availability.md


-    In the section `vrrp_instance VI_1`, change few lines depending on your setup:
+      {{< note >}}


The preview shows this note sitting in a nested code block 😢

yup. Blackfriday/CSS FTW. I decided to live with it. If it drives you crazy, lmk and that'll make two of us :D

detiber · 2018-06-20T20:23:23Z

content/en/docs/setup/independent/high-availability.md

+- `/etc/kubernetes/pki/front-proxy-ca.key`
+
+In the following example, replace the list of
+`CONTROL_PLANE_IP` values with the IP addresses of the other control plane nodes.


This should be CONTROL_PLANE_IPS as well.

detiber · 2018-06-20T20:39:47Z

content/en/docs/setup/independent/high-availability.md


-    In the section `vrrp_instance VI_1`, change few lines depending on your setup:
+      - This command causes the etcd cluster to become unavailable for a


I hate to say it, but I think the previous version was a bit better, this version doesn't really bring attention to the statement

layout so ugly as to be distracting, though. Also there are so many notes in the doc that their effectiveness is getting lost.

Bradamant3 · 2018-06-20T21:25:00Z

changes, so lost this again:

/lgtm

mdlinville · 2018-06-21T16:49:28Z

Thanks everyone for the hard work! 🎉

/approve

k8s-ci-robot · 2018-06-21T16:49:36Z

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* Updates HA kubeadm docs Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * kubeadm HA - Add stacked control plane steps * ssh instructions and some typos in the bash scripts Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * Fix typos and copypasta errors * Fix rebase issues * Integrate more changes Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * copyedits, layout and formatting fixes * final copyedits * Adds a sanity check for load balancer connection Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * formatting fixes, copyedits * fix typos, formatting

* Seperate priority and preemption (#8144) * Doc about PID pressure condition. (#8211) * Doc about PID pressure condition. Signed-off-by: Da K. Ma <klaus1982.cn@gmail.com> * "so" -> "too" * Update version selector for 1.11 * StorageObjectInUseProtection is GA (#8291) * Feature gate: StorageObjectInUseProtection is GA Update feature gate reference for 1.11 * Trivial commit to re-trigger Netlify * CRIContainerLogRotation is Beta in 1.11 (#8665) * Seperate priority and preemption (#8144) * CRIContainerLogRotation is Beta in 1.11 xref: kubernetes/kubernetes#64046 * Bring StorageObjectInUseProtection feature to GA (#8159) * StorageObjectInUseProtection is GA (#8291) * Feature gate: StorageObjectInUseProtection is GA Update feature gate reference for 1.11 * Trivial commit to re-trigger Netlify * Bring StorageObjectInUseProtection feature to GA StorageObjectInUseProtection is Beta in K8s 1.10. It's brought to GA in K8s 1.11. * Fixed typo and added feature state tags. * Remove KUBE_API_VERSIONS doc (#8292) The support to the KUBER_API_VERSIONS environment variable is completely dropped (no deprecation). This PR removes the related doc in release-1.11. xref: kubernetes/kubernetes#63165 * Remove InitialResources from admission controllers (#8293) The feature (was experimental) is dropped in 1.11. xref: kubernetes/kubernetes#58784 * Remove docs related to in-tree support to GPU (#8294) * Remove docs related to in-tree support to GPU The in-tree support to GPU is completely removed in release 1.11. This PR removes the related docs in release-1.11 branch. xref: kubernetes/kubernetes#61498 * Update content updated by PR to Hugo syntax Signed-off-by: Misty Stanley-Jones <mistyhacks@google.com> * Update the doc about extra volume in kubeadm config (#8453) Signed-off-by: Xianglin Gao <xianglin.gxl@alibaba-inc.com> * Update CRD Subresources for 1.11 (#8519) * coredns: update notes in administer-cluster/coredns.md (#8697) CoreDNS is installed by default in 1.11. Add notes on how to install kube-dns instead. Update notes about CoreDNS->CoreDNS upgrades as in 1.11 the Corefile is retained. Add example on upgrading from kube-dns to CoreDNS. * kubeadm-alpha: CoreDNS related changes (#8727) Update note about CoreDNS feature gate. This change also updates a tab as a kubeadm sub-command will change. It looks for a new generated file: generated/kubeadm_alpha_phase_addon_coredns.md instead of: generated/kubeadm_alpha_phase_addon_kube-dns.md * Update cloud controller manager docs to beta 1.11 (#8756) * Update cloud controller manager docs to beta 1.11 * Use Hugo shortcode for feature state * kubeadm-upgrade: include new command `kubeadm upgrade diff` (#8617) Also: - Include note that this was added in 1.11. - Modify the note about upgrade guidance. * independent: update CoreDNS mentions for kubeadm (#8753) Give CoreDNS instead of kube-dns examples in: - docs/setup/independent/create-cluster-kubeadm.md - docs/setup/independent/troubleshooting-kubeadm.md * update 1.11 --server-print info (#8870) * update 1.11 --server-print info * Copyedit * Mark ExpandPersistentVolumes feature to beta (#8778) * Update version selector for 1.11 * Mark ExpandPersistentVolumes Beta xref: kubernetes/kubernetes#64288 * fix shortcode, add placeholder files to fix deploy failures (#8874) * declare ipvs ga (#8850) * kubeadm: update info about CoreDNS in kubeadm-init.md (#8728) Add info to install kube-dns instead of CoreDNS, as CoreDNS is the default DNS server in 1.11. Add notes that kubeadm config images can be used to list and pull the required images in 1.11. * kubeadm: update implementation-details.md about CoreDNS (#8829) - Replace examples from kube-dns to CoreDNS - Add notes about the CoreDNS feature gate status in 1.11 - Add note that the service name for CoreDNS is also called `kube-dns` * Update block device support for 1.11 (#8895) * Update block device support for 1.11 * Copyedits * Fix typo 'fiber channel' (#8957) Signed-off-by: Misty Stanley-Jones <mistyhacks@google.com> * kubeadm-upgrade: add the 'node [config]' sub-command (#8960) - Add includes for the generated pages - Include placeholder generated pages * kubeadm-init: update the example for the MasterConfiguration (#8958) - include godocs link for MasterConfiguration - include example MasterConfiguration - add note that `kubeadm config print-default` can be used * kubeadm-config: include new commands (#8862) Add notes and includes for these new commands in 1.11: - kubeadm config print-default - kubeadm config migrate - kubeadm config images list - kubeadm config images pull Include placeholder generated files for the above. * administer-cluster/coredns: include more changes (#8985) It was requested that for this page a couple of methods should be outlined: - manual installation for CoreDNS explained at the Kubernetes section of the GitHub project for CoreDNS - installation and upgrade via kubeadm Make the above changes and also add a section "About CoreDNS". This commit also lowercases a section title. * Update CRD subresources doc for 1.11 (#8918) * Add docs for volume expansion and online resizing (#8896) * Add docs for volume expansion going beta * Copyedit * Address feedback * Update exec plugin docs with TLS credentials (#8826) * Update exec plugin docs with TLS credentials kubernetes/kubernetes#61803 implements TLS client credential support for 1.11. * Copyedit * More copyedits for clarification * Additional copyedit * Change token->credential * NodeRestriction admission prevents kubelet taint removal (#8911) * dns-custom-namerserver: break down the page into mutliple sections (#8900) * dns-custom-namerserver: break down the page into mutliple sections This page is currently about kube-dns and is a bit outdated. Introduce the heading `# Customizing kube-dns`. Introduce a separate section about CoreDNS. * Copyedits, fix headings for customizing DNS Hey Lubomir, I coypedited pretty heavily because this workflow is so much easier for docs and because I'm trying to help improve everything touching kubeadm as much as possible. But there's one outstanding issue wrt headings and intro content: you can't add a heading 1 to a topic to do what you wanted to do. The page title in the front matter is rendered as a heading 1 and everything else has to start at heading 2. (We still need to doc this better in the docs contributing content, I know.) Instead, I think we need to rewrite the top-of-page intro content to explain better the relationship between kube-dns and CoreDNS. I'm happy to write something, but I thought I'd push this commit first so you can see what I'm doing. Hope it's all clear -- ping here or on Slack with any questions ~ Jennifer * Interim fix for talking about CoreDNS * Fix CoreDNS details * PSP readOnly hostPath (#8898) * Add documentation for crictl (#8880) * Add documentation for crictl * Copyedit Signed-off-by: Misty Stanley-Jones <mistyhacks@google.com> * Final copyedit * VolumeSubpathEnvExpansion alpha feature (#8835) * Note that Heapster is deprecated (#8827) * Note that Heapster is deprecated This notes that Heapster is deprecated, and migrates the relevant docs to talk about metrics-server or other solutions by default. * Copyedits and improvements Signed-off-by: Misty Stanley-Jones <mistyhacks@google.com> * Address feedback * fix shortcode to troubleshoot deploy (#9057) * update dynamic kubelet config docs for v1.11 (#8766) * update dynamic kubelet config docs for v1.11 * Substantial copyedit * Address feedback * Reference doc for kubeadm (release-1.11) (#9044) * Reference doc for kubeadm (release-1.11) * fix shortcode to troubleshoot deploy (#9057) * Reference doc for kube-components (release-1.11) (#9045) * Reference doc for kube-components (release-1.11) * Update cloud-controller-manager.md * fix shortcode to troubleshoot deploy (#9057) * Documentation on lowercasing kubeadm init apiserver SANs (#9059) * Documentation on lowercasing kubeadm init apiserver SANs * fix shortcode to troubleshoot deploy (#9057) * Clarification in dynamic Kubelet config doc (#9061) * Promote sysctls to Beta (#8804) * Promote sysctls to Beta * Copyedits Signed-off-by: Misty Stanley-Jones <mistyhacks@google.com> * Review comments * Address feedback * More feedback * kubectl reference docs for 1.11 (#9080) * Update Kubernetes API 1.11 ref docs (#8977) * Update v1alpha1 to v1beta1. * Adjust left nav for 1.11 ref docs. * Trim list of old ref docs. * Update Federation API ref docs for 1.11. (#9064) * Update Federation API ref docs for 1.11. * Add titles. * Update definitions.html * CRD versioning Public Documentation (#8834) * CRD versioning Public Documentation * Copyedit Signed-off-by: Misty Stanley-Jones <mistyhacks@google.com> * Address feedback * More rewrites * Address feedback * Update main CRD page in light of versioning * Reorg CRD docs * Further reorg * Tweak title * CSI documentation update for raw block volume support (#8927) * CSI documetation update for raw block volume support * minor edits for "CSI raw block volume support" Some small grammar and style nits. * minor CSIBlockVolume edits * Update kubectl component ref page for 1.11. (#9094) * Update kubectl component ref page for 1.11. * Add title. Replace stevepe with username. * crd versioning doc: fix nits (#9142) * Update `DynamicKubeletConfig` feature to beta (#9110) xref: kubernetes/kubernetes#64275 * Documentation for dynamic volume limits based on node type (#8871) * add cos for storage limits * Update docs specific for aws and gce * fix some minor things * Update storage-limits.md * Add k8s version to feature-state shortcode * The Doc update for ScheduleDaemonSetPods (#8842) Signed-off-by: Da K. Ma <klaus1982.cn@gmail.com> * Update docs related to PersistentVolumeLabel admission control (#9109) The said admission controller is disabled by default in 1.11 (kubernetes/kubernetes#64326) and scheduled to be removed in future release. * client exec auth: updates for 1.11 (#9154) * Updates HA kubeadm docs (#9066) * Updates HA kubeadm docs Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * kubeadm HA - Add stacked control plane steps * ssh instructions and some typos in the bash scripts Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * Fix typos and copypasta errors * Fix rebase issues * Integrate more changes Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * copyedits, layout and formatting fixes * final copyedits * Adds a sanity check for load balancer connection Signed-off-by: Chuck Ha <ha.chuck@gmail.com> * formatting fixes, copyedits * fix typos, formatting * Document the Pod Ready++ feature (#9180) Closes: #9107 Xref: kubernetes/kubernetes#64057 * Mention 'KubeletPluginsWatcher' feature (#9177) * Mention 'KubeletPluginsWatcher' feature This feature is more developers oriented than users oriented, so simply mention it in the feature gate should be fine. In future, when the design doc is migrated from Google doc to the kubernetes/community repo, we can add links to it for users who want to dig deeper. Closes: #9108 Xref: kubernetes/kubernetes#63328, kubernetes/kubernetes#64605 * Copyedit * Amend dynamic volume list docs (#9181) The dynamic volume list feature has been documented but the feature gate related was not there yet. Closes: #9105 * Document for service account projection (#9182) This adds docs for the service account projection feature. Xref: kubernetes/kubernetes#63819, kubernetes/community#1973 Closes: #9102 * Update pod priority and preemption user docs (#9172) * Update pod priority and preemption user docs * Copyedit * Documentation on setting node name with Kubeadm (#8925) * Documentation on setting node name with Kubeadm * copyedit * Add kubeadm upgrade docs for 1.11 (#9089) * Add kubeadm upgrade docs for 1.11 * Initial docs review feedback * Add 1-11 to outline * Fix formatting on tab blocks * Move file to correct location * Add `kubeadm upgrade node config` step * Overzealous ediffing * copyedit, fix lists and headings * clarify --force flag for fixing bad state * Get TOML ready for 1.11 release * Blog post for 1.11 release (#9254) * Blog post for 1.11 release * Update 2018-06-26-kubernetes-1.11-release-announcement.md * Update 2018-06-26-kubernetes-1.11-release-announcement.md * Update 2018-06-26-kubernetes-1.11-release-announcement.md

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Updates HA kubeadm docs

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Signed-off-by: Chuck Ha <ha.chuck@gmail.com>

kubeadm HA - Add stacked control plane steps

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ssh instructions and some typos in the bash scripts

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Fix typos and copypasta errors

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Fix rebase issues

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Integrate more changes

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Signed-off-by: Chuck Ha <ha.chuck@gmail.com>

copyedits, layout and formatting fixes

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final copyedits

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Release docs for Kubernetes 1.11 #9171

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Adds a sanity check for load balancer connection

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		#### Prerequisites

		1. This node must have [kubeadm, kubelet and kubectl][installation] installed.


		This guide assumes calico will be used as the pod network and will therefore use


		Note: If you are using Kubernetes 1.9+, you can replace the `apiserver-count: 3` extra argument with `endpoint-reconciler-type: lease`. For more information, see [the documentation](/docs/admin/high-availability/#endpoint-reconciler).
		### Swizzling certs


		While the first option provides more performance and better hardware isolation, it is also more expensive and requires an additional support burden.
		# External Etcd (etcd members and control-planes are on separate hosts)


		Only follow this step if your etcd is hosted on dedicated nodes (Option 1). If you are hosting etcd on the masters (Option 2), you can skip this step since you've already generated the etcd certificates on the masters.
		Please see [setting up an HA etcd cluster using kubeadm](/docs/tasks/administer-cluster/setup-etcd-with-kubeadm).


		In the section `vrrp_instance VI_1`, change few lines depending on your setup:
		{{< note >}}


		In the section `vrrp_instance VI_1`, change few lines depending on your setup:
		- This command causes the etcd cluster to become unavailable for a

Updates HA kubeadm docs #9066

Updates HA kubeadm docs #9066

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