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Merge pull request #59936 from rramkumar1/local-up-cluster-ipvs

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Automatic merge from submit-queue (batch tested with PRs 59683, 59964, 59841, 59936, 59686). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Move ipvs module loading logic in local-cluster-up.sh

**What this PR does / why we need it**:
This PR makes the module loading logic for ipvs kube-proxy a little more robust. Previously we were attempting to load the modules and not checking that it succeeded. Now we make sure the loading was successful before proceeding with using ipvs as the proxier.

/assign @cblecker 

Release Note
```release-note
None
```
This commit is contained in:
Kubernetes Submit Queue 2018-02-16 16:31:37 -08:00 committed by GitHub
commit 31ea4c9981
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1 changed files with 8 additions and 5 deletions
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13
hack/local-up-cluster.sh
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@ -122,7 +122,14 @@ fi
# set feature gates if using ipvs mode
if [ "${KUBE_PROXY_MODE}" == "ipvs" ]; then
FEATURE_GATES="$FEATURE_GATES,SupportIPVSProxyMode=true"
# If required kernel modules are not available, fall back to iptables.
sudo modprobe -a ip_vs ip_vs_rr ip_vs_wrr ip_vs_sh nf_conntrack_ipv4
if [[ $? -eq 0 ]]; then
FEATURE_GATES="${FEATURE_GATES},SupportIPVSProxyMode=true"
else
echo "Required kernel modules for ipvs not found. Falling back to iptables mode."
KUBE_PROXY_MODE=iptables
fi
fi
# set feature gates if enable Pod priority and preemption
@ -813,10 +820,6 @@ hostnameOverride: ${HOSTNAME_OVERRIDE}
featureGates: ${FEATURE_GATES}
mode: ${KUBE_PROXY_MODE}
EOF
if [ "${KUBE_PROXY_MODE}" == "ipvs" ]; then
# Load kernel modules required by IPVS proxier
sudo modprobe -a ip_vs ip_vs_rr ip_vs_wrr ip_vs_sh nf_conntrack_ipv4
fi
sudo "${GO_OUT}/hyperkube" proxy \
--config=/tmp/kube-proxy.yaml \