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5.1.3.1. Инициализация

Обратите внимание

Данный раздел является опциональным и предназначен только для случаев, когда необходимо настроить данный ресурс отдельно от остальных.

Переменные окружения

export HOST_NAME=master-1
export CLUSTER_NAME=my-first-cluster
export BASE_DOMAIN=example.com
export MACHINE_LOCAL_ADDRESS=$(ip -4 addr show scope global | awk '/inet/ {print $2; exit}' | cut -d/ -f1)
export FULL_HOST_NAME="${HOST_NAME}.${CLUSTER_NAME}.${BASE_DOMAIN}"
export ETCD_INITIAL_CLUSTER="${FULL_HOST_NAME}=https://${MACHINE_LOCAL_ADDRESS}:2380"

Рабочая директория

mkdir -p /etc/kubernetes/manifests
Static Pod ETCD

Генерация манифеста

cat <<EOF > /etc/kubernetes/manifests/etcd.yaml
apiVersion: v1
kind: Pod
metadata:
  annotations:
    kubeadm.kubernetes.io/etcd.advertise-client-urls: https://${MACHINE_LOCAL_ADDRESS}:2379
  creationTimestamp: null
  labels:
    component: etcd
    tier: control-plane
  name: etcd
  namespace: kube-system
spec:
  containers:
  - command:
    - etcd
    - --advertise-client-urls=https://${MACHINE_LOCAL_ADDRESS}:2379
    - --auto-compaction-retention=8
    - --cert-file=/etc/kubernetes/pki/etcd/server.crt
    - --client-cert-auth=true
    - --data-dir=/var/lib/etcd
    - --election-timeout=1500
    - --experimental-initial-corrupt-check=true
    - --experimental-watch-progress-notify-interval=5s
    - --heartbeat-interval=250
    - --initial-advertise-peer-urls=https://${MACHINE_LOCAL_ADDRESS}:2380
    - --initial-cluster=${ETCD_INITIAL_CLUSTER}
    - --key-file=/etc/kubernetes/pki/etcd/server.key
    - --listen-client-urls=https://0.0.0.0:2379
    - --listen-metrics-urls=http://0.0.0.0:2381
    - --listen-peer-urls=https://0.0.0.0:2380
    - --logger=zap
    - --max-snapshots=10
    - --max-wals=10
    - --metrics=extensive
    - --name=${FULL_HOST_NAME}
    - --peer-cert-file=/etc/kubernetes/pki/etcd/peer.crt
    - --peer-client-cert-auth=true
    - --peer-key-file=/etc/kubernetes/pki/etcd/peer.key
    - --peer-trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crt
    - --snapshot-count=10000
    - --quota-backend-bytes=10737418240
    - --trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crt
    image: registry.k8s.io/etcd:3.5.12-0
    imagePullPolicy: IfNotPresent
    livenessProbe:
      failureThreshold: 8
      httpGet:
        host: 127.0.0.1
        path: /health?exclude=NOSPACE&serializable=true
        port: 2381
        scheme: HTTP
      initialDelaySeconds: 10
      periodSeconds: 10
      timeoutSeconds: 15
    name: etcd
    resources:
      requests:
        cpu: 100m
        memory: 100Mi
    startupProbe:
      failureThreshold: 24
      httpGet:
        host: 127.0.0.1
        path: /health?serializable=false
        port: 2381
        scheme: HTTP
      initialDelaySeconds: 10
      periodSeconds: 10
      timeoutSeconds: 15
    volumeMounts:
    - mountPath: /var/lib/etcd
      name: etcd-data
    - mountPath: /etc/kubernetes/pki/etcd
      name: etcd-certs
  hostNetwork: true
  priority: 2000001000
  priorityClassName: system-node-critical
  securityContext:
    seccompProfile:
      type: RuntimeDefault
  volumes:
  - hostPath:
      path: /etc/kubernetes/pki/etcd
      type: DirectoryOrCreate
    name: etcd-certs
  - hostPath:
      path: /var/lib/etcd
      type: DirectoryOrCreate
    name: etcd-data
status: {}
EOF