Enable host firewall in kube-proxy-free CI #11795
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Signed-off-by: Paul Chaignon <paul@cilium.io>
This commit enables the enforcement of host policies in the datapath for our kube-proxy-free CI builds. Since no host policies are loaded, it defaults to allow all on ingress and egress. Signed-off-by: Paul Chaignon <paul@cilium.io>
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This first commit adds a new Helm option to enable the host firewall, which then allows the second commit to enable it in our kube-proxy-free CI builds (K8s 1.11 Linux net-next). The third and last commits fix two issues found this way: (1) a missing case for ARP resolution on
from-{netdev,host}paths, and (2) packet drops when tunneling is enabled. I'm not sure how I missed the second before since I had already ran the CI build (although not with the Helm option).Enabling host firewall on 4.19 is currently blocked by #10567.
Updates: #11799
Fixes: #11507