An epehemeral StatefulSet to run a MongoDB replicaset on Kubernetes - use for tests that require a temporary replicaset

mongo-replicaset-on-k8s-for-tests.yaml

# a headless service to make mongo pods available at mongo-0.mongo, mongo-1.mongo, mongo-2.mongo
# to connect to the replicaset use: mongo -server rs0/mongo-0.mongo,mongo-1.mongo,mongo-2.mongo
apiVersion: v1
kind: Service
metadata:
  name: mongo
  labels:
    role: mongo
    environment: test
spec:
  ports:
  - port: 2717
    name: default
  clusterIP: None
  selector:
    role: mongo
    environment: test
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongo
  labels:
    role: mongo
    environment: test
spec:
  selector:
    matchLabels:
      role: mongo
      environment: test
  serviceName: "mongo"
  replicas: 3
  template:
    metadata:
      labels:
        role: mongo
        environment: test
    spec:
      terminationGracePeriodSeconds: 10
      containers:
      - name: mongo
        image: mongo
        ports:
        - containerPort: 27017
          name: default
        args:
        - "--replSet"
        - rs0
        - "--smallfiles"
        - "--noprealloc"
        - "--bind_ip"
        - 0.0.0.0
      - name: mongo-sidecar
        image: cvallance/mongo-k8s-sidecar
        env:
        - name: MONGO_SIDECAR_POD_LABELS
          value: "role=mongo,environment=test"

Deploy by running kubectl create -f https://gist.githubusercontent.com/antweiss/2193967b43684a0cf94c1000e5d2ce69/raw/89683e3d68c250b9be484f43527c5ce689ef8c33/mongo-replicaset-on-k8s-for-tests.yaml