starlingx/config
Code Issues Proposed changes

Enable kubernetes SCTPSupport feature

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The feature gate for sctp support in apiserver was added in
kubernetes 1.12 but is disabled by default.  This commit enables it.

Information about SCTP is here:
https://kubernetes.io/docs/concepts/services-networking/service/#sctp

The centos version of netcat can be used to validate the feature.
A Dockerfile for building a centos netcat is provided.

Tested by:

kubectl run --generator=run-pod/v1 --image netcat:v1.0.0 \
    listen-sctp -it --rm -- --sctp -l -p 9000

(get IP of the listener pod)
kubectl run --generator=run-pod/v1 --image netcat:v1.0.0 \
   test-sctp -it --rm -- --sctp <listener pod IP> 9000

Change-Id: I9642e485cb9c30f6b1272c00ec1046b9c98211ac
Story: 2006472
Task: 36403
Signed-off-by: Al Bailey <Al.Bailey@windriver.com>
This commit is contained in:
Al Bailey 2019-08-28 12:16:40 -05:00 committed by Al Bailey
parent a72d91958e
commit 278fd9ae46
3 changed files with 10 additions and 0 deletions
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1
puppet-manifests/src/modules/platform/templates/kubeadm.yaml.erb
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@ -17,6 +17,7 @@ apiServer:
oidc-client-id: <%= @apiserver_oidc_client_id %> oidc-client-id: <%= @apiserver_oidc_client_id %>
oidc-issuer-url: <%= @apiserver_oidc_issuer_url %> oidc-issuer-url: <%= @apiserver_oidc_issuer_url %>
oidc-username-claim: <%= @apiserver_oidc_username_claim %> oidc-username-claim: <%= @apiserver_oidc_username_claim %>
feature-gates: "SCTPSupport=true"
controllerManager: controllerManager:
extraArgs: extraArgs:
node-monitor-period: "2s" node-monitor-period: "2s"

4
tools/docker/images/Dockerfile Normal file
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@ -0,0 +1,4 @@
FROM centos
RUN yum install -y nc
ENTRYPOINT ["nc"]
CMD ["nc"]

5
tools/docker/images/Readme.rst Normal file
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@ -0,0 +1,5 @@
export VERSION=v1.0.0
sudo docker build \
--network host \
-t netcat:${VERSION} \
.