imfreedom/k8s-cluster

Checking in the EFK stuff, it still needs work though just tired of having it sitting in a modified state in my working copy

2019-11-24, Gary Kramlich
602f15d61173
Checking in the EFK stuff, it still needs work though just tired of having it sitting in a modified state in my working copy
# This manifest sets up the Elastic Search portion of an EFK stack to capture
# logging from all of the pods in the cluster.
---
kind: Service
apiVersion: v1
metadata:
name: elasticsearch
namespace: kube-logging
labels:
app: elasticsearch
spec:
selector:
app: elasticsearch
clusterIP: None
ports:
- port: 9200
name: rest
- port: 9300
name: inter-node
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: es-cluster
namespace: kube-logging
spec:
serviceName: elasticsearch
replicas: 3
selector:
matchLabels:
app: elasticsearch
template:
metadata:
labels:
app: elasticsearch
spec:
affinity:
podAntiAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- podAffinityTerm:
labelSelector:
matchExpressions:
- key: app
operator: In
values:
- elasticsearch
topologyKey: failure-domain.beta.kubernetes.io/region
weight: 100
containers:
- name: elasticsearch
image: docker.elastic.co/elasticsearch/elasticsearch:7.3.0
resources:
limits:
cpu: 1000m
memory: 1024Mi # we set the heap to 512, but java sucks so limit it at twice as much
requests:
cpu: 100m
memory: 512Mi
ports:
- containerPort: 9200
name: rest
protocol: TCP
- containerPort: 9300
name: inter-node
protocol: TCP
volumeMounts:
- name: data
mountPath: /usr/share/elasticsearch/data
env:
- name: cluster.name
value: k8s-logs
- name: node.name
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: cluster.initial_master_nodes
value: "es-cluster-0,es-cluster-1,es-cluster-2"
- name: discovery.zen.ping.unicast.hosts
value: "es-cluster-0.elasticsearch,es-cluster-1.elasticsearch,es-cluster-2.elasticsearch"
- name: ES_JAVA_OPTS
value: "-Xms512m -Xmx512m -XX:+UnlockExperimentalVMOptions"
initContainers:
- name: increase-vm-max-map
image: busybox
command: ["sysctl", "-w", "vm.max_map_count=262144"]
securityContext:
runAsUser: 0
privileged: true
- name: increase-fd-ulimit
image: busybox
command: ["sh", "-c", "ulimit -n 65536"]
securityContext:
runAsUser: 0
privileged: true
securityContext:
fsGroup: 1000
runAsUser: 1000
volumeClaimTemplates:
- metadata:
name: data
labels:
app: elasticsearch
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: do-block-storage
resources:
requests:
storage: 10Gi
---