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NATS


설치​

helm repo add nats https://nats-io.github.io/k8s/helm/charts

NATS​

helm repo update nats \
&& helm search repo nats/nats -l | head -n 10
helm show values nats/nats \
    --version 1.1.2 \
    > nats-values.yaml
nats-values.yaml
fullnameOverride: ""

config:
  cluster:
    enabled: true
    replicas: 3

  jetstream:
    enabled: true

    fileStore:
      enabled: true
      dir: /data

      pvc:
        size: 10Gi

        merge:
          spec:
            accessModes:
              - "ReadWriteOnce"

    memoryStore:
      enabled: false

  merge:
    # <<>> 로 감싸면 "" 없이 입력 그대로 설정됩니다.
    max_payload: << 1MB >> # 최댓값: 64MB, 권장 최댓값: 8MB

    # authorization:
    #   users:
    #     - user: << $NATS_USER >>
    #       password: << $NATS_PASSWORD >>
    #     - nkey: <nkey-user>
    accounts:
      dev:
        users: []
      prod:
        users: []
      SYS:
        users:
          - user: << $NATS_ADMIN_USER >>
            password: << $NATS_ADMIN_PASSWORD >>

    system_account: SYS

container:
  env:
    NATS_ADMIN_USER:
      valueFrom:
        secretKeyRef:
          name: <secretName>
          key: user
    NATS_ADMIN_PASSWORD:
      valueFrom:
        secretKeyRef:
          name: <secretName>
          key: password
  merge:
    resources:
      requests:
        cpu: 500m
        memory: 1Gi
      limits:
        memory: 1Gi

service:
  ports:
    monitor:
      enabled: true

statefulSet:
  merge:
    metadata:
      labels: {}

podTemplate:
  merge:
    metadata:
      labels:
        app.kubernetes.io/name: nats
        app.kubernetes.io/instance: <fullname>
    spec:
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - podAffinityTerm:
                labelSelector:
                  matchLabels:
                    app.kubernetes.io/name: nats
                    app.kubernetes.io/instance: <fullname>
                topologyKey: kubernetes.io/hostname
              weight: 100
      tolerations: []

natsBox:
  enabled: false
helm template nats nats/nats \
    --version 1.1.2 \
    -n event \
    -f nats-values.yaml \
    > nats.yaml
helm upgrade nats nats/ntas \
    --install \
    --version 1.1.2 \
    -n event \
    --history-max 5 \
    -f nats-values.yaml

NACK​

kubectl apply -f https://github.com/nats-io/nack/releases/download/v0.12.0/crds.yml
helm repo update nats \
&& helm search repo nats/nack -l | head -n 10
helm show values nats/nack \
    --version 0.23.0 \
    > nack-values.yaml
nack-values.yaml
resources:
  requests:
    cpu: 10m
    memory: 64Mi
  limits:
    memory: 64Mi
helm template nack nats/nack \
    --version 0.23.0 \
    -n event \
    -f nack-values.yaml \
    > nack.yaml
helm upgrade nack nats/nack \
    --install \
    --history-max 5 \
    --version 0.23.0 \
    -n event \
    -f nack-values.yaml

Test​

kubectl run -i --rm --tty nats-box --image=natsio/nats-box --restart=Never