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Set Kubelet image via kubelet.service KUBELET_IMAGE

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* Write the systemd kubelet.service to use `KUBELET_IMAGE`
as the Kubelet. This provides a nice way to use systemd
dropins to temporarily override the image (e.g. during a
registry outage)

Note: Only Typhoon Kubelet images and registries are supported.
This commit is contained in:
Dalton Hubble
2020-05-19 22:39:53 -07:00
parent 09eb208b4e
commit 4760543356
20 changed files with 40 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
bare-metal/container-linux/kubernetes/cl/controller.yaml
View File

@ -60,6 +60,7 @@ systemd:
Description=Kubelet
Wants=rpc-statd.service
[Service]
Environment=KUBELET_IMAGE=docker://quay.io/poseidon/kubelet:v1.18.2
Environment=KUBELET_CGROUP_DRIVER=${cgroup_driver}
ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
@ -103,7 +104,7 @@ systemd:
--mount volume=etc-iscsi,target=/etc/iscsi \
--volume usr-sbin-iscsiadm,kind=host,source=/usr/sbin/iscsiadm \
--mount volume=usr-sbin-iscsiadm,target=/sbin/iscsiadm \
docker://quay.io/poseidon/kubelet:v1.18.2 -- \
$${KUBELET_IMAGE} -- \
--anonymous-auth=false \
--authentication-token-webhook \
--authorization-mode=Webhook \

3
bare-metal/container-linux/kubernetes/cl/worker.yaml
View File

@ -33,6 +33,7 @@ systemd:
Description=Kubelet
Wants=rpc-statd.service
[Service]
Environment=KUBELET_IMAGE=docker://quay.io/poseidon/kubelet:v1.18.2
Environment=KUBELET_CGROUP_DRIVER=${cgroup_driver}
ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
@ -76,7 +77,7 @@ systemd:
--mount volume=etc-iscsi,target=/etc/iscsi \
--volume usr-sbin-iscsiadm,kind=host,source=/usr/sbin/iscsiadm \
--mount volume=usr-sbin-iscsiadm,target=/sbin/iscsiadm \
docker://quay.io/poseidon/kubelet:v1.18.2 -- \
$${KUBELET_IMAGE} -- \
--anonymous-auth=false \
--authentication-token-webhook \
--authorization-mode=Webhook \