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