elastic-search

ben.wangzLess than 1 minute

elastic-search

prepare

k8s is ready
argocd is ready and logged in
ingress is ready
cert-manager is ready
- the clusterissuer named self-signed-ca-issuer is ready

installation

prepare elastic-search.yaml

minimal

apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: elastic-search
spec:
  syncPolicy:
    syncOptions:
    - CreateNamespace=true
  project: default
  source:
    repoURL: https://charts.bitnami.com/bitnami
    chart: elasticsearch
    targetRevision: 19.21.2
    helm:
      releaseName: elastic-search
      values: |
        global:
          kibanaEnabled: false
        clusterName: elastic
        image:
          registry: docker.io
          pullPolicy: IfNotPresent
        security:
          enabled: false
        service:
          type: ClusterIP
        ingress:
          enabled: true
          annotations:
            cert-manager.io/cluster-issuer: self-signed-ca-issuer
            nginx.ingress.kubernetes.io/rewrite-target: /$1
          hostname: elastic-search.dev.geekcity.tech
          ingressClassName: nginx
          path: /?(.*)
          tls: true
        master:
          masterOnly: false
          replicaCount: 1
          persistence:
            enabled: false
        data:
          replicaCount: 0
          persistence:
            enabled: false
        coordinating:
          replicaCount: 0
        ingest:
          enabled: true
          replicaCount: 0
          service:
            enabled: false
            type: ClusterIP
          ingress:
            enabled: false
        metrics:
          enabled: false
          image:
            registry: docker.io
            pullPolicy: IfNotPresent
        volumePermissions:
          enabled: false
          image:
            registry: docker.io
            pullPolicy: IfNotPresent
        sysctlImage:
          enabled: true
          registry: docker.io
          pullPolicy: IfNotPresent
        kibana:
          elasticsearch:
            hosts:
              - '{{ include "elasticsearch.service.name" . }}'
            port: '{{ include "elasticsearch.service.ports.restAPI" . }}'
  destination:
    server: https://kubernetes.default.svc
    namespace: application

normal

apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: elastic-search
spec:
  syncPolicy:
    syncOptions:
    - CreateNamespace=true
  project: default
  source:
    repoURL: https://charts.bitnami.com/bitnami
    chart: elasticsearch
    targetRevision: 19.21.2
    helm:
      releaseName: elastic-search
      values: |
        global:
          kibanaEnabled: false
        clusterName: elastic
        image:
          registry: docker.io
          pullPolicy: IfNotPresent
        security:
          enabled: false
        service:
          type: ClusterIP
        ingress:
          enabled: true
          annotations:
            cert-manager.io/cluster-issuer: self-signed-ca-issuer
            nginx.ingress.kubernetes.io/rewrite-target: /$1
          hostname: elastic-search.dev.geekcity.tech
          ingressClassName: nginx
          path: /?(.*)
          tls: true
        master:
          masterOnly: true
          replicaCount: 2
          persistence:
            enabled: false
        data:
          replicaCount: 2
          persistence:
            enabled: false
        coordinating:
          replicaCount: 2
        ingest:
          enabled: true
          replicaCount: 2
          service:
            enabled: false
            type: ClusterIP
          ingress:
            enabled: false
        metrics:
          enabled: false
          image:
            registry: docker.io
            pullPolicy: IfNotPresent
        volumePermissions:
          enabled: false
          image:
            registry: docker.io
            pullPolicy: IfNotPresent
        sysctlImage:
          enabled: true
          registry: docker.io
          pullPolicy: IfNotPresent
        kibana:
          elasticsearch:
            hosts:
              - '{{ include "elasticsearch.service.name" . }}'
            port: '{{ include "elasticsearch.service.ports.restAPI" . }}'
  destination:
    server: https://kubernetes.default.svc
    namespace: application

apply to k8s

kubectl -n argocd apply -f elastic-search.yaml

sync by argocd
- ```
argocd app sync argocd/elastic-search
```

tests

elastic-search.dev.geekcity.tech should be resolved to nginx-ingress
- for example, add $K8S_MASTER_IP elastic-search.dev.geekcity.tech to /etc/hosts

make a REST api call

curl -k "https://elastic-search.dev.geekcity.tech:32443/?pretty"

add single document

curl -k -H "Content-Type: application/json" \
    -X POST "https://elastic-search.dev.geekcity.tech:32443/books/_doc?pretty" \
    -d '{"name": "Snow Crash", "author": "Neal Stephenson", "release_date": "1992-06-01", "page_count": 470}'

bulk add documents

curl -k -H "Content-Type: application/x-ndjson" \
    -X POST "https://elastic-search.dev.geekcity.tech:32443/books/_bulk?pretty" \
    -d '{ "index" : { "_index" : "books" } }
{"name": "Revelation Space", "author": "Alastair Reynolds", "release_date": "2000-03-15", "page_count": 585}
{ "index" : { "_index" : "books" } }
{"name": "1984", "author": "George Orwell", "release_date": "1985-06-01", "page_count": 328}
{ "index" : { "_index" : "books" } }
{"name": "Fahrenheit 451", "author": "Ray Bradbury", "release_date": "1953-10-15", "page_count": 227}
{ "index" : { "_index" : "books" } }
{"name": "Brave New World", "author": "Aldous Huxley", "release_date": "1932-06-01", "page_count": 268}
{ "index" : { "_index" : "books" } }
{"name": "The Handmaids Tale", "author": "Margaret Atwood", "release_date": "1985-06-01", "page_count": 311}
'

search all documents with index named books

curl -k -X GET "https://elastic-search.dev.geekcity.tech:32443/books/_search?pretty"

search with match query

curl -k -H "Content-Type: application/json" \
    -X GET "https://elastic-search.dev.geekcity.tech:32443/books/_search?pretty" \
    -d '{"query": {"match": {"name": "brave"}}}'