Disable Kubelet 127.0.0.1.10248 healthz endpoint

* Kubelet runs a healthz server listening on 127.0.0.1:10248 by default. Its unused by Typhoon and can be disabled * https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/
poseidon · Dec 29, 2019 · b2eb3e0 · b2eb3e0
1 parent f1f4cd6
commit b2eb3e0
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diff --git a/CHANGES.md b/CHANGES.md
@@ -7,6 +7,7 @@ Notable changes between versions.
 * Update CoreDNS from v1.6.5 to [v1.6.6](https://coredns.io/2019/12/11/coredns-1.6.6-release/) ([#602](https://github.com/poseidon/typhoon/pull/602))
 * Update Calico from v3.10.2 to v3.11.1 ([#604](https://github.com/poseidon/typhoon/pull/604))
 * Inline Kubelet service on Container Linux nodes ([#606](https://github.com/poseidon/typhoon/pull/606))
+* Disable unused Kubelet `127.0.0.1:10248` healthz listener ([#607](https://github.com/poseidon/typhoon/pull/607))
 
 #### Addons
 

diff --git a/aws/container-linux/kubernetes/cl/controller.yaml b/aws/container-linux/kubernetes/cl/controller.yaml
@@ -100,6 +100,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \

diff --git a/aws/container-linux/kubernetes/workers/cl/worker.yaml b/aws/container-linux/kubernetes/workers/cl/worker.yaml
@@ -75,6 +75,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \

diff --git a/aws/fedora-coreos/kubernetes/fcc/controller.yaml b/aws/fedora-coreos/kubernetes/fcc/controller.yaml
@@ -92,6 +92,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \

diff --git a/aws/fedora-coreos/kubernetes/workers/fcc/worker.yaml b/aws/fedora-coreos/kubernetes/workers/fcc/worker.yaml
@@ -62,6 +62,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \

diff --git a/azure/container-linux/kubernetes/cl/controller.yaml b/azure/container-linux/kubernetes/cl/controller.yaml
@@ -98,6 +98,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \

diff --git a/azure/container-linux/kubernetes/workers/cl/worker.yaml b/azure/container-linux/kubernetes/workers/cl/worker.yaml
@@ -73,6 +73,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \

diff --git a/bare-metal/container-linux/kubernetes/cl/controller.yaml b/bare-metal/container-linux/kubernetes/cl/controller.yaml
@@ -112,6 +112,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --hostname-override=${domain_name} \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \

diff --git a/bare-metal/container-linux/kubernetes/cl/worker.yaml b/bare-metal/container-linux/kubernetes/cl/worker.yaml
@@ -87,6 +87,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --hostname-override=${domain_name} \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \

diff --git a/bare-metal/fedora-coreos/kubernetes/fcc/controller.yaml b/bare-metal/fedora-coreos/kubernetes/fcc/controller.yaml
@@ -93,6 +93,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --hostname-override=${domain_name} \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \

diff --git a/bare-metal/fedora-coreos/kubernetes/fcc/worker.yaml b/bare-metal/fedora-coreos/kubernetes/fcc/worker.yaml
@@ -63,6 +63,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --hostname-override=${domain_name} \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \

diff --git a/digital-ocean/container-linux/kubernetes/cl/controller.yaml b/digital-ocean/container-linux/kubernetes/cl/controller.yaml
@@ -109,6 +109,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --hostname-override=$${COREOS_DIGITALOCEAN_IPV4_PRIVATE_0} \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \

diff --git a/digital-ocean/container-linux/kubernetes/cl/worker.yaml b/digital-ocean/container-linux/kubernetes/cl/worker.yaml
@@ -84,6 +84,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --hostname-override=$${COREOS_DIGITALOCEAN_IPV4_PRIVATE_0} \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \

diff --git a/google-cloud/container-linux/kubernetes/cl/controller.yaml b/google-cloud/container-linux/kubernetes/cl/controller.yaml
@@ -98,6 +98,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \

diff --git a/google-cloud/container-linux/kubernetes/workers/cl/worker.yaml b/google-cloud/container-linux/kubernetes/workers/cl/worker.yaml
@@ -73,6 +73,7 @@ systemd:
           --cluster_domain=${cluster_domain_suffix} \
           --cni-conf-dir=/etc/kubernetes/cni/net.d \
           --exit-on-lock-contention \
+          --healthz-port=0 \
           --kubeconfig=/etc/kubernetes/kubeconfig \
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \