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invidianDongsu Park
invidian
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Dongsu Park
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templates: add Flatcar Container Linux template
Co-authored-by: Dongsu Park <[email protected]> Signed-off-by: Mateusz Gozdek <[email protected]>
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‎templates/cluster-template-flatcar.yaml

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---
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apiVersion: cluster.x-k8s.io/v1beta1
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kind: Cluster
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metadata:
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name: "${CLUSTER_NAME}"
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spec:
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clusterNetwork:
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pods:
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cidrBlocks: ["192.168.0.0/16"]
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infrastructureRef:
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: AWSCluster
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name: "${CLUSTER_NAME}"
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controlPlaneRef:
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kind: KubeadmControlPlane
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apiVersion: controlplane.cluster.x-k8s.io/v1beta1
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name: "${CLUSTER_NAME}-control-plane"
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: AWSCluster
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metadata:
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name: "${CLUSTER_NAME}"
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spec:
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region: "${AWS_REGION}"
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sshKeyName: "${AWS_SSH_KEY_NAME}"
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s3Bucket:
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controlPlaneIAMInstanceProfile: control-plane.cluster-api-provider-aws.sigs.k8s.io
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name: "${AWS_S3_BUCKET_NAME}"
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nodesIAMInstanceProfiles:
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- nodes.cluster-api-provider-aws.sigs.k8s.io
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---
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apiVersion: controlplane.cluster.x-k8s.io/v1beta1
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kind: KubeadmControlPlane
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metadata:
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name: ${CLUSTER_NAME}-control-plane
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spec:
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replicas: ${CONTROL_PLANE_MACHINE_COUNT}
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machineTemplate:
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infrastructureRef:
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kind: AWSMachineTemplate
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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name: "${CLUSTER_NAME}-control-plane"
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kubeadmConfigSpec:
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initConfiguration:
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nodeRegistration:
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name: $${COREOS_EC2_HOSTNAME}
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kubeletExtraArgs:
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cloud-provider: aws
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clusterConfiguration:
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apiServer:
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extraArgs:
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cloud-provider: aws
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controllerManager:
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extraArgs:
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cloud-provider: aws
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joinConfiguration:
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nodeRegistration:
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name: $${COREOS_EC2_HOSTNAME}
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kubeletExtraArgs:
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cloud-provider: aws
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format: ignition
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ignition:
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containerLinuxConfig:
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additionalConfig: |
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systemd:
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units:
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- name: kubeadm.service
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enabled: true
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dropins:
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- name: 10-flatcar.conf
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contents: |
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[Unit]
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# kubeadm must run after coreos-metadata populated /run/metadata directory.
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Requires=coreos-metadata.service
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After=coreos-metadata.service
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[Service]
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# To make metadata environment variables available for pre-kubeadm commands.
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EnvironmentFile=/run/metadata/*
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preKubeadmCommands:
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- envsubst < /etc/kubeadm.yml > /etc/kubeadm.yml.tmp
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- mv /etc/kubeadm.yml.tmp /etc/kubeadm.yml
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version: ${KUBERNETES_VERSION}
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: AWSMachineTemplate
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metadata:
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name: ${CLUSTER_NAME}-control-plane
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spec:
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template:
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spec:
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instanceType: ${AWS_CONTROL_PLANE_MACHINE_TYPE}
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iamInstanceProfile: control-plane.cluster-api-provider-aws.sigs.k8s.io
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imageLookupBaseOS: flatcar-stable
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sshKeyName: ${AWS_SSH_KEY_NAME}
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---
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apiVersion: cluster.x-k8s.io/v1beta1
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kind: MachineDeployment
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metadata:
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name: ${CLUSTER_NAME}-md-0
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spec:
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clusterName: ${CLUSTER_NAME}
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replicas: ${WORKER_MACHINE_COUNT}
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selector:
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matchLabels:
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template:
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spec:
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clusterName: ${CLUSTER_NAME}
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version: ${KUBERNETES_VERSION}
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bootstrap:
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configRef:
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apiVersion: bootstrap.cluster.x-k8s.io/v1beta1
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kind: KubeadmConfigTemplate
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name: ${CLUSTER_NAME}-md-0
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infrastructureRef:
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: AWSMachineTemplate
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name: ${CLUSTER_NAME}-md-0
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: AWSMachineTemplate
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metadata:
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name: ${CLUSTER_NAME}-md-0
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spec:
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template:
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spec:
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instanceType: ${AWS_NODE_MACHINE_TYPE}
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iamInstanceProfile: nodes.cluster-api-provider-aws.sigs.k8s.io
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imageLookupBaseOS: flatcar-stable
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sshKeyName: ${AWS_SSH_KEY_NAME}
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---
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apiVersion: bootstrap.cluster.x-k8s.io/v1beta1
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kind: KubeadmConfigTemplate
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metadata:
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name: ${CLUSTER_NAME}-md-0
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spec:
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template:
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spec:
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joinConfiguration:
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nodeRegistration:
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kubeletExtraArgs:
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cloud-provider: aws
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name: $${COREOS_EC2_HOSTNAME}
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format: ignition
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ignition:
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containerLinuxConfig:
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additionalConfig: |
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systemd:
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units:
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- name: kubeadm.service
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enabled: true
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dropins:
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- name: 10-flatcar.conf
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contents: |
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[Unit]
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# kubeadm must run after coreos-metadata populated /run/metadata directory.
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Requires=coreos-metadata.service
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After=coreos-metadata.service
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[Service]
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# To make metadata environment variables available for pre-kubeadm commands.
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EnvironmentFile=/run/metadata/*
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preKubeadmCommands:
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- envsubst < /etc/kubeadm.yml > /etc/kubeadm.yml.tmp
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- mv /etc/kubeadm.yml.tmp /etc/kubeadm.yml

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