Catalog

1 Preface

2 download elastic search

3 create elasticsearch namespace

4. Install elastic search

4.1 modify configuration

4.2 install elasticsearch

5 install nfs storage server

6 create pv

7 create secret

7.1 create a self signed certificate

7.2 generate secret based on certificate

8 verify elastic search

1 Preface

In this paper, helm3 v3.0.0; k8s v1.16.3 are used. The configuration of helm warehouse is as follows:

2 download elasticsearch

helm search elasticsearch:

helm search repo elasticsearch

helm downloads and decompresses elastic search:

helm fetch google/elasticsearch

tar -zxvf elasticsearch-1.32.1.tgz

3 create elasticsearch namespace

kubectl create ns elasticsearch

4. Install elastic search

4.1 modify configuration

Edit the values.yaml file and modify the related configuration of ingress. The screenshot is as follows:

Because you have enabled ingress, you need to install nginx ingress. Please refer to my< helm3 installing nginx ingress >, don't worry, the installation process is easy to make you scream.

In addition, the data pvc size changed from 30Gi to 15Gi:

4.2 install elasticsearch

The first elasticsearch is the namespace, the second is helm release, and the third is the elasticsearch installation directory:

helm install -n efk elasticsearch elasticsearch

Use helm to view:

helm list -n efk

Since then, elasticsearch chart has been installed successfully. But don't be complacent. Successful installation doesn't mean successful operation. No, you can check pvc and pod:

kubectl get pod -n efk

kubectl get pvc -n efk

5 install nfs storage server

How to install the nfs server, please refer to me< Easy completion of nfs installation >Don't worry. It's easy to explode. It's easy for you to finish blasting in minutes.

mkdir -p /data/nfs/elasticsearch/data/15g/{0,1}

mkdir -p /data/nfs/elasticsearch/master/4g/{0,1,2}

chmod 777 -R /data/nfs/elasticsearch

echo '/data/nfs/elasticsearch    10.110.0.0/16(rw,sync,no_root_squash)' >> /etc/exports

systemctl restart nfs

6 create pv

After installing the storage server, start creating pv. Note that the following server is the IP address of the nfs server:

Create the pv-elasticsearch-master-4g.yaml file:

apiVersion: v1

kind: PersistentVolume

metadata:

    name: pv-elasticsearch-master-4g-0

spec:

    capacity:

    storage: 4Gi

    volumeMode: Filesystem

    accessModes:

    -  ReadWriteOnce

    persistentVolumeReclaimPolicy: Retain

    nfs:

        server: 10.110.101.106

        path: /data/nfs/elasticsearch/master/4g/0

---

apiVersion: v1

kind: PersistentVolume

metadata:

    name: pv-elasticsearch-master-4g-1

spec:

    capacity:

        storage: 4Gi

    volumeMode: Filesystem

    accessModes:

    -  ReadWriteOnce

    persistentVolumeReclaimPolicy: Retain

    nfs:

        server: 10.110.101.106

        path: /data/nfs/elasticsearch/master/4g/1

---

apiVersion: v1

kind: PersistentVolume

metadata:

    name: pv-elasticsearch-master-4g-2

spec:

    capacity:

        storage: 4Gi

    volumeMode: Filesystem

    accessModes:

    -  ReadWriteOnce

    persistentVolumeReclaimPolicy: Retain

    nfs:

        server: 10.110.101.106

        path: /data/nfs/elasticsearch/master/4g/2

Create the pv-elasticsearch-data-15g.yaml file:

apiVersion: v1

kind: PersistentVolume

metadata:

    name: pv-elasticsearch-data-15g-0

spec:

    capacity:

        storage: 15Gi

    volumeMode: Filesystem

    accessModes:

    -  ReadWriteOnce

    persistentVolumeReclaimPolicy: Retain

    nfs:

        server: 10.110.101.106

        path: /data/nfs/elasticsearch/data/15g/0

---

apiVersion: v1

kind: PersistentVolume

metadata:

    name: pv-elasticsearch-data-15g-1

spec:

    capacity:

        storage: 15Gi

    volumeMode: Filesystem

    accessModes:

    -  ReadWriteOnce

    persistentVolumeReclaimPolicy: Retain

    nfs:

        server: 10.110.101.106

        path: /data/nfs/elasticsearch/data/15g/1

Create pv statement as follows:

kubectl apply -f pv-elasticsearch-master-4g.yaml

kubectl apply -f pv-elasticsearch-data-15g.yaml

7 create secret

7.1 create a self signed certificate

openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ./tls.key -out ./tls.crt -subj "/CN=jiuxi.elasticsearch.org"

7.2 generate secret based on certificate

kubectl -n efk create secret tls elasticsearch-tls --key ./tls.key --cert ./tls.crt

8 verify elastic search

Open the browser and visit https://jiuxi.elasticsearch.org (you need to modify the / etc/hosts file and add the domain name resolution record. Note that IP is the host IP of nginx ingress pod, remember).

Since then, it is easy to install elastic search in helm3.