cluster_with_client.yaml

# This file provides an example of a cluster with a client app connected.
#
# The client app will get its cluster file from a config map that is managed
# by the operator. It will also use the sidecar to include multiple client
# libraries to support upgrades of FoundationDB.
#
# Because the app depends on the config map created by the operator, it will
# not be able to launch until the cluster gets far enough in reconciliation to
# generate a cluster file. You can work around this by creating the cluster
# first and then applying the rest of the file to create the app. As an
# alternative, you can apply the entire file and then run
# `kubectl delete pod -l app=sample-cluster-client` to bounce the clients and
# pick up the final cluster file.
apiVersion: apps.foundationdb.org/v1beta1
kind: FoundationDBCluster
metadata:
  labels:
    controller-tools.k8s.io: "1.0"
  name: sample-cluster
spec:
  version: 6.2.15
  faultDomain:
    key: foundationdb.org/none
  processCounts:
    stateless: -1
  customParameters:
    - "knob_disable_posix_kernel_aio=1"
  volumeClaim:
    spec:
      resources:
        requests:
          storage: "16G"
  podTemplate:
    spec:
      securityContext:
        fsGroup: 0
      containers:
        - name: foundationdb
          securityContext:
            runAsUser: 0
          resources:
            requests:
              cpu: 250m
              memory: 128Mi
        - name: foundationdb-kubernetes-sidecar
          securityContext:
            runAsUser: 0
      initContainers:
        - name: foundationdb-kubernetes-init
          securityContext:
            runAsUser: 0
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: sample-cluster-client
spec:
  replicas: 2
  selector:
    matchLabels:
      app: sample-cluster-client
  template:
    metadata:
      labels:
        app: sample-cluster-client
      name: sample-cluster-client
    spec:
      automountServiceAccountToken: false
      initContainers:
        - name: foundationdb-kubernetes-init
          image: foundationdb/foundationdb-kubernetes-sidecar:6.2.15-1
          args:
            - "--copy-file"
            - "fdb.cluster"
            - "--copy-library"
            - "6.1"
            - "--copy-library"
            - "6.2"
            - "--init-mode"
          volumeMounts:
            - name: config-map
              mountPath: /var/input-files
            - name: dynamic-conf
              mountPath: /var/output-files
      containers:
        - name: client
          image: foundationdb/foundationdb-sample-python-app:latest
          imagePullPolicy: Always
          env:
            - name: FDB_CLUSTER_FILE
              value: /var/dynamic-conf/fdb.cluster
            - name: FDB_API_VERSION
              value: "610"
            - name: FDB_NETWORK_OPTION_TRACE_LOG_GROUP
              value: sample-cluster-client
            - name: FDB_NETWORK_OPTION_EXTERNAL_CLIENT_DIRECTORY
              value: /var/dynamic-conf/lib/multiversion
            - name: LD_LIBRARY_PATH
              value: /var/dynamic-conf/lib
          resources:
            limits:
              cpu: 250m
              memory: 128Mi
            requests:
              cpu: 250m
              memory: 128Mi
          securityContext:
            runAsGroup: 0
            runAsUser: 0
          volumeMounts:
            - name: dynamic-conf
              mountPath: /var/dynamic-conf
      volumes:
        - name: config-map
          configMap:
            name: sample-cluster-config
            items:
              - key: cluster-file
                path: fdb.cluster
        - name: dynamic-conf
          emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  name: sample-cluster-client
  labels:
    app: sample-cluster-client
spec:
  selector:
    app: sample-cluster-client
  type: LoadBalancer
  ports:
    - port: 9562
      targetPort: 5000