Created
December 20, 2017 19:11
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apiVersion: v1 | |
kind: Service | |
metadata: | |
# This service is meant to be used by clients of the database. It exposes a ClusterIP that will | |
# automatically load balance connections to the different database pods. | |
name: cockroachdb-public | |
labels: | |
app: cockroachdb | |
spec: | |
ports: | |
# The main port, served by gRPC, serves Postgres-flavor SQL, internode | |
# traffic and the cli. | |
- port: 26257 | |
targetPort: 26257 | |
name: grpc | |
# The secondary port serves the UI as well as health and debug endpoints. | |
- port: 8080 | |
targetPort: 8080 | |
name: http | |
selector: | |
app: cockroachdb | |
--- | |
apiVersion: v1 | |
kind: Service | |
metadata: | |
# This service only exists to create DNS entries for each pod in the stateful | |
# set such that they can resolve each other's IP addresses. It does not | |
# create a load-balanced ClusterIP and should not be used directly by clients | |
# in most circumstances. | |
name: cockroachdb | |
labels: | |
app: cockroachdb | |
annotations: | |
# This is needed to make the peer-finder work properly and to help avoid | |
# edge cases where instance 0 comes up after losing its data and needs to | |
# decide whether it should create a new cluster or try to join an existing | |
# one. If it creates a new cluster when it should have joined an existing | |
# one, we'd end up with two separate clusters listening at the same service | |
# endpoint, which would be very bad. | |
service.alpha.kubernetes.io/tolerate-unready-endpoints: "true" | |
# Enable automatic monitoring of all instances when Prometheus is running in the cluster. | |
prometheus.io/scrape: "true" | |
prometheus.io/path: "_status/vars" | |
prometheus.io/port: "8080" | |
spec: | |
ports: | |
- port: 26257 | |
targetPort: 26257 | |
name: grpc | |
- port: 8080 | |
targetPort: 8080 | |
name: http | |
clusterIP: None | |
selector: | |
app: cockroachdb | |
--- | |
apiVersion: policy/v1beta1 | |
kind: PodDisruptionBudget | |
metadata: | |
name: cockroachdb-budget | |
labels: | |
app: cockroachdb | |
spec: | |
selector: | |
matchLabels: | |
app: cockroachdb | |
maxUnavailable: 1 | |
--- | |
apiVersion: apps/v1beta1 | |
kind: StatefulSet | |
metadata: | |
name: cockroachdb | |
spec: | |
serviceName: "cockroachdb" | |
replicas: 3 | |
template: | |
metadata: | |
labels: | |
app: cockroachdb | |
spec: | |
affinity: | |
podAntiAffinity: | |
preferredDuringSchedulingIgnoredDuringExecution: | |
- weight: 100 | |
podAffinityTerm: | |
labelSelector: | |
matchExpressions: | |
- key: app | |
operator: In | |
values: | |
- cockroachdb | |
topologyKey: kubernetes.io/hostname | |
hostNetwork: true | |
dnsPolicy: ClusterFirstWithHostNet | |
containers: | |
- name: cockroachdb | |
image: cockroachdb/cockroach:v1.1.3 | |
imagePullPolicy: IfNotPresent | |
ports: | |
- containerPort: 26257 | |
name: grpc | |
- containerPort: 8080 | |
name: http | |
volumeMounts: | |
- name: datadir | |
mountPath: /cockroach/cockroach-data | |
command: | |
- "/bin/bash" | |
- "-ecx" | |
# The use of qualified `hostname -f` is crucial: | |
# Other nodes aren't able to look up the unqualified hostname. | |
- "exec /cockroach/cockroach start --logtostderr --insecure --host $(hostname -f) --http-host 0.0.0.0 --join cockroachdb-0.cockroachdb,cockroachdb-1.cockroachdb,cockroachdb-2.cockroachdb --cache 25% --max-sql-memory 25%" | |
# No pre-stop hook is required, a SIGTERM plus some time is all that's | |
# needed for graceful shutdown of a node. | |
terminationGracePeriodSeconds: 60 | |
volumes: | |
- name: datadir | |
persistentVolumeClaim: | |
claimName: datadir | |
updateStrategy: | |
type: RollingUpdate | |
volumeClaimTemplates: | |
- metadata: | |
name: datadir | |
annotations: | |
volume.alpha.kubernetes.io/storage-class: anything | |
spec: | |
accessModes: | |
- "ReadWriteOnce" | |
resources: | |
requests: | |
storage: 1Gi |
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