Update multi-cluster user guide and templates #3853

luolanzone · 2022-06-01T14:12:50Z

Add a quick start guide.
Update the user guide with Multi-cluster Gateway.

Signed-off-by: Lan Luo luola@vmware.com
Signed-off-by: Jianjun Shen shenj@vmware.com

codecov-commenter · 2022-06-01T14:20:58Z

Codecov Report

Merging #3853 (97aca3f) into main (87918f6) will increase coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3853      +/-   ##
==========================================
+ Coverage   64.33%   64.42%   +0.08%     
==========================================
  Files         290      288       -2     
  Lines       41225    41252      +27     
==========================================
+ Hits        26524    26575      +51     
+ Misses      12578    12548      -30     
- Partials     2123     2129       +6

Flag	Coverage Δ
kind-e2e-tests	`51.77% <ø> (+0.11%)`	⬆️
unit-tests	`44.32% <ø> (+0.06%)`	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/agent/ipassigner/ip_assigner_linux.go	`47.28% <0.00%> (-11.85%)`	⬇️
pkg/version/version.go	`42.85% <0.00%> (-9.53%)`	⬇️
pkg/controller/networkpolicy/store/addressgroup.go	`87.20% <0.00%> (-3.49%)`	⬇️
pkg/agent/openflow/client.go	`67.87% <0.00%> (-1.51%)`	⬇️
pkg/controller/serviceexternalip/controller.go	`68.67% <0.00%> (-1.21%)`	⬇️
...ntroller/networkpolicy/networkpolicy_controller.go	`70.17% <0.00%> (-0.66%)`	⬇️
pkg/controller/networkpolicy/status_controller.go	`71.37% <0.00%> (-0.41%)`	⬇️
pkg/agent/controller/egress/egress_controller.go	`73.93% <0.00%> (-0.35%)`	⬇️
pkg/agent/agent.go	`53.80% <0.00%> (-0.26%)`	⬇️
pkg/ovs/openflow/ofctrl_bridge.go	`56.86% <0.00%> (-0.20%)`	⬇️
... and 15 more

jianjuns · 2022-06-01T17:16:47Z

multicluster/config/samples/clusterset_init/multicluster_clusterset_template.yaml

@@ -1,15 +1,15 @@
 apiVersion: multicluster.crd.antrea.io/v1alpha1
 kind: ClusterClaim
 metadata:
-  name: leadercluster-id


Could we change to clusterSet.k8s.io as we talked?

yes, I will change this one today.

Changed it to clusterset.k8s.io due to upper case is not allowed in metadata's name.

jianjuns · 2022-06-02T00:18:04Z

@luolanzone : I updated the quick-start doc. The biggest change is that it now talks about two clusters, with one to be both leader and member. Could you check? I plan to revise the user guide too.

jianjuns · 2022-06-02T00:19:37Z

docs/multicluster/quick-start.md

+
+In this quick start guide, we will set up a Antrea Multi-cluster ClusterSet with
+two clusters. One cluster will serve as both the leader and a member cluster,
+while another cluster will be a member only. The diagram belows shows the two


@luolanzone : I feel we better to have a simple diagram to show the two clusters (with cluster ID), and ClusterSet (with leader and member cluster information).

Sure, I haven't had the chance to draw the diagram yesterday, I will add it.

A few comments for the diagram:

What you think we have a box for the ClusterSet that contains the two clusters? We can add ClusterSet ID there.

Add something like "leader" to the leader mc-controller to indicate it is the controller for leader.

And some way to indicate the Gateway Node too.

Could we add apiserver IP to Cluster A

Could we indicate Cluster A is "leader and member", and Cluster B is "member"

We should change the Node names in the diagram and commands (e.g. node-a1/a2 and node-b1/b2)

jianjuns · 2022-06-02T01:57:34Z

docs/multicluster/user-guide.md

 ```

+## Multi-cluster Gateway Configuration


I moved it here to be before the feature consumption sections. But have not review and update the section yet.

jianjuns · 2022-06-02T01:58:08Z

docs/multicluster/user-guide.md

@@ -503,6 +591,17 @@ Events:
  Warning ACNPImportFailed     2m11s  resourceimport-controller  ACNP Tier random does not exist in the importing cluster test-cluster-west
 ```

+## Build Antrea Multi-cluster Image


This is not really for users. But anyway, I moved it to the end of the doc.

jianjuns · 2022-06-02T01:59:09Z

docs/multicluster/user-guide.md

+cluster, one in leader mode and another in member mode. There is no deployment
+dependency between member and leader clusters when you have a dedicated leader
+cluster. But to run both leader and member controllers in one cluster, you need
+to follow the deployment sequence below:


Is it still true? @luolanzone

I think there is no dependency even the cluster run both leader and member if user is using 'kubectl apply', but if user is using kubectl create -f, CRD installation will fail since some of them are already existing like ClusterClaim.

If it is true, we should remove the words around ordering.

luolanzone · 2022-06-02T04:24:48Z

multicluster/config/samples/clusterset_init/multicluster_membercluster_template.yaml

-    - clusterID: test-cluster-east
-  namespace: antrea-mcs-ns
+    - clusterID: test-cluster-leader
+    - clusterID: test-cluster-member


@hjiajing Could you help to review these changes in templates? I hope it has minor impact to CI, thanks.

@luolanzone : please update the ObjectMeta.Name first.

sure, I am working the diagram, will submit a new commit once is done.

jianjuns

Re-paste my comments for the diagram:

What you think we have a box for the ClusterSet that contains the two clusters? We can add ClusterSet ID there.
Add something like "leader" to the leader mc-controller to indicate it is the controller for leader.
And some way to indicate the Gateway Node too.
Could we add apiserver IP to Cluster A
Could we indicate Cluster A is "leader and member", and Cluster B is "member"
We should change the Node names in the diagram and commands (e.g. node-a1/a2 and node-b1/b2)

jianjuns · 2022-06-02T19:03:17Z

docs/multicluster/quick-start.md

+
+```bash
+$kubectl apply -f https://github.com/antrea-io/antrea/releases/download/$TAG/antrea-multicluster-member.yml
+$kubectl apply -f https://github.com/antrea-io/antrea/releases/download/$TAG/antrea-multicluster-leader-global.yml


Do we need to apply antrea-multicluster-leader-global.yml for a dual-role cluster? In the user guide, earlier you wrote it is necessary, as antrea-multicluster-member.yml already import all CRDs.

If we do need to apply all YAMLs and the order does not matter, I would apply leader YAMLs first, which is easier to understand. @luolanzone

yes, we removed those unnecessary CRDs which was both in leader and member yamls, so we need to apply antrea-multicluster-leader-global.yml for a dual-role cluster, I will move it.

Done, the diagram is also updated.

jianjuns · 2022-06-05T21:10:16Z

docs/multicluster/quick-start.md

+
+```bash
+$kubectl apply -f https://github.com/antrea-io/antrea/releases/download/$TAG/antrea-multicluster-leader-global.yml
+$kubectl apply -f https://github.com/antrea-io/antrea/releases/download/$TAG/antrea-multicluster-member.yml


I noticed you added this line in your last update, but antrea-multicluster-member.yml is already applied in line 60. Should we remove this line?

I also revised the diagram a little. Check.

I removed the extra step to apply member manifest. The revised diagram looks good to me, but I changed the background to white so it can show in browser's dark mode clearly.

jianjuns · 2022-06-06T03:41:06Z

docs/multicluster/quick-start.md

+$sed 's/changeme/antrea-multicluster/g' antrea-multicluster-leader-namespaced.yml | kubectl apply -f -
+$kubectl apply -f https://github.com/antrea-io/antrea/releases/download/$TAG/antrea-multicluster-member.yml
+```
+


It might be good to add a command to check the deployment results that can show both leader & member mc-controller Deployments and Pods.

Does something like work: kc get all -A -l="app=xyz"

What should be the "xyz".

@luolanzone

sure, I will add it, it can be kubectl get all -A -l="component=antrea-mc-controller", should I add a sample output?

Yes, better to have a sample output.

hjiajing · 2022-06-06T05:43:40Z

@luolanzone Hi Lan. I changed multiclusterv1alpha1.WellKnownClusterClaimClusterSet from clusterSet.k8s.io to clusterset.k8s.io. I don't know if this change will affect you in this PR. Just a reminder.

luolanzone · 2022-06-06T05:47:27Z

@hjiajing , I will check, thanks for the reminder, please make sure e2e is passed after you change the ID.

Add a quick start guide. Update the user guide with Multi-cluster Gateway. Signed-off-by: Lan Luo <luola@vmware.com> Co-authored-by: Jianjun Shen <shenj@vmware.com>

luolanzone · 2022-06-07T07:02:54Z

Hi @jianjuns I also changed the WellKnownClusterClaimClusterSet from "clusterSet.k8s.io"` "clusterset.k8s.io" in this PR and all other related strings, maybe do a rebase later if @hjiajing 's antctl bootstrap is merged first. and I changed your sign-off info to co-author in the commit, otherwise, there will be no extra co-author information.

jianjuns · 2022-06-08T03:20:02Z

/skip-all

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Add docs for theia and policy recommendation CLI antrea-io/theia#36

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Update example ClusterSet SVG for Multi-cluster quick-start

97aca3f

Add a quick start guide. Update the user guide with Multi-cluster Gateway. Signed-off-by: Lan Luo <luola@vmware.com> Co-authored-by: Jianjun Shen <shenj@vmware.com>

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luolanzone added this to the Antrea v1.7 release milestone Jun 7, 2022

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jianjuns merged commit 62a0145 into antrea-io:main Jun 8, 2022

luolanzone deleted the mc-user-guide branch July 14, 2022 09:31

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Update multi-cluster user guide and templates #3853

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Update multi-cluster user guide and templates #3853

Update multi-cluster user guide and templates #3853

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