deploy/cluster/templates/kubeadmcontrolplane.yaml

   1 ---
   2 apiVersion: controlplane.cluster.x-k8s.io/v1alpha4
   3 kind: KubeadmControlPlane
   4 metadata:
   5   name: {{ .Values.clusterName }}
   6 spec:
   7   kubeadmConfigSpec:
   8     clusterConfiguration:
   9       apiServer:
  10         extraArgs:
  11           enable-admission-plugins: NodeRestriction,PodSecurityPolicy
  12     initConfiguration:
  13       nodeRegistration:
  14         kubeletExtraArgs:
  15           node-labels: metal3.io/uuid={{ "{{" }} ds.meta_data.uuid {{ "}}" }}
  16           cpu-manager-policy: static
  17           topology-manager-policy: best-effort
  18           kube-reserved: cpu=200m,memory=512Mi
  19         name: '{{ "{{" }} ds.meta_data.name {{ "}}" }}'
  20     joinConfiguration:
  21       controlPlane: {}
  22       nodeRegistration:
  23         kubeletExtraArgs:
  24           node-labels: metal3.io/uuid={{ "{{" }} ds.meta_data.uuid {{ "}}" }}
  25           cpu-manager-policy: static
  26           topology-manager-policy: best-effort
  27           kube-reserved: cpu=200m,memory=512Mi
  28         name: '{{ "{{" }} ds.meta_data.name {{ "}}" }}'
  29     preKubeadmCommands:
  30 {{- if .Values.networks }}
  31     # Without touching up /etc/hosts, kubeadm may pick the wrong
  32     # (i.e. provisioning network) address for the node IP
  33     - sed -i "1i $(ip -4 addr show dev {{ .Values.networks.baremetal.interface }} | grep -oP '(?<=inet\s)\d+(\.\d+){3}' | head -1) $(hostname)" /etc/hosts
  34 {{- end }}
  35     - curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
  36     - add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
  37     - curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
  38     - add-apt-repository "deb https://apt.kubernetes.io/ kubernetes-xenial main"
  39     - apt-get update -y
  40     - apt-get install -y ca-certificates
  41 {{- if .Values.keepalived }}
  42     - apt-get install -y keepalived
  43     - systemctl enable --now keepalived
  44 {{- end }}
  45     - /usr/local/bin/install-container-runtime.sh
  46     - apt-get install -y kubelet={{ .Values.kubeVersion }} kubeadm={{ .Values.kubeVersion }} kubectl={{ .Values.kubeVersion }}
  47     - systemctl enable --now kubelet
  48     postKubeadmCommands:
  49     - mkdir -p /home/ubuntu/.kube
  50     - cp /etc/kubernetes/admin.conf /home/ubuntu/.kube/config
  51     - chown ubuntu:ubuntu /home/ubuntu/.kube/config
  52     - mkdir -p /root/.kube
  53     - cp /etc/kubernetes/admin.conf /root/.kube/config
  54     - /usr/local/bin/harden_os.sh
  55     # Normally any bootstrap resources needed would be applied with a
  56     # ClusterResourceSet.  However instead of apply, replace must be
  57     # used to harden K8s.
  58     - /usr/local/bin/harden_k8s.sh
  59 {{- if eq (int .Values.numWorkerMachines) 0 }}
  60     # Allow scheduling Pods on the control plane when there are no
  61     # workers.
  62     - kubectl --kubeconfig=/etc/kubernetes/admin.conf taint nodes --all node-role.kubernetes.io/master-
  63 {{- end }}
  64     # This must be done after kubeadm as the cabpk provider relies on
  65     # files in /var/run, which won't persist after a reboot
  66     - /usr/local/bin/set_kernel_cmdline.sh
  67     files:
  68 {{ include "cluster.keepalived" .Values | indent 4 }}
  69 {{ include "cluster.containerRuntime" .Values | indent 4 }}
  70     - path: /etc/systemd/system/containerd.service.d/override.conf
  71       content: |
  72 {{ $.Files.Get "resources/override.conf" | indent 8 }}
  73     - path: /usr/local/bin/harden_os.sh
  74       permissions: '0777'
  75       content: |
  76 {{ $.Files.Get "resources/harden_os.sh" | indent 8 }}
  77     - path: /usr/local/bin/harden_k8s.sh
  78       permissions: '0777'
  79       content: |
  80 {{ $.Files.Get "resources/harden_k8s.sh" | indent 8 }}
  81     - path: /usr/local/bin/set_kernel_cmdline.sh
  82       permissions: '0777'
  83       content: |
  84 {{ $.Files.Get "resources/set_kernel_cmdline.sh" | indent 8 }}
  85     users:
  86     - name: {{ .Values.userData.name }}
  87       shell: /bin/bash
  88       lockPassword: False # Necessary to allow password login
  89       passwd: {{ .Values.userData.hashedPassword }}
  90       sshAuthorizedKeys:
  91       - {{ .Values.userData.sshAuthorizedKey }}
  92       sudo: "ALL=(ALL) NOPASSWD:ALL"
  93       groups: sudo # Necessary to allow SSH logins (see /etc/ssh/sshd_config)
  94     - name: root
  95       sshAuthorizedKeys:
  96       - {{ .Values.userData.sshAuthorizedKey }}
  97   machineTemplate:
  98     infrastructureRef:
  99       apiVersion: infrastructure.cluster.x-k8s.io/v1alpha5
 100       kind: Metal3MachineTemplate
 101       name: {{ .Values.clusterName }}-controlplane
 102     nodeDrainTimeout: 0s
 103   replicas: {{ .Values.numControlPlaneMachines }}
 104   rolloutStrategy:
 105     rollingUpdate:
 106       maxSurge: 1
 107     type: RollingUpdate
 108   version: {{ .Values.k8sVersion }}