本文以 elasticsearch 、 kibana 为例

elasticsearch

• 通过 Artifact Hub (opens new window) 搜索要安装的服务
• 找到 elasticsearch 8.5.1・elastic/elastic (opens new window)

根据文档说明进行如下操作

# 添加 Elastic Helm charts repo
helm repo add elastic https://helm.elastic.co

# 安装
helm install elasticsearch elastic/elasticsearch


# 执行安装命令后，从终端可知，通过此命令获取默认密码
kubectl get secrets --namespace=default elasticsearch-master-credentials -ojsonpath='{.data.password}' | base64 -d

# 或通过保密字典elasticsearch-master-credentials可知

通过 Service 地址访问： https://serice-ip:9200

• 账号： elastic
• 密码：elasticsearch-master-credentials 可知

9200和9300端口的区别

9200 作为 Http 协议，主要用于外部通讯

9300 作为 Tcp 协议，jar 之间就是通过 tcp 协议通讯

ES 集群之间是通过 9300 进行通讯

kibana

由于 kibana 修改中文修改在 yaml 配置中设置，因此这里使用另一种方式安装

• 同理，找到 kibana 8.5.1・elastic/elastic (opens new window)

# 添加repo；（安装elasticsearch时已经添加过了）
#helm repo add elastic https://helm.elastic.co

# 拉取
helm pull elastic/kibana --untar

cd kibana
vim values.yaml

找到

kibanaConfig: {}
#   kibana.yml: |
#     key:
#       nestedkey: value

修改为

kibanaConfig:
   kibana.yml: |
     i18n.locale: "zh-CN"

笔记

之后就可以通过容器挂载的 kibana-kibana-config 配置修改，值得注意的是，values.yaml 使用默认配置，即 kibanaConfig: {} 时，是不会生成 k8s 配置 kibana-kibana-config 的

# 回到上一级
cd ..

# 本地安装
helm install kibana kibana

# 由于我是安装后才发现需要修改配置才可以改中文，执行下面命令更新配置
#helm upgrade kibana elastic/kibana -f values.yaml

笔记

• 默认链接的 es url 为 https://elasticsearch-master:9200 ，配合上面的 elasticsearch 安装是可以直接连接上的。

访问 http://serice-ip:5601

• 账号、密码为 es

记一次kibana卸载重新安装报错

helm install kibana kibana
Error: INSTALLATION FAILED: failed pre-install: warning: Hook pre-install kibana/templates/pre-install-serviceaccount.yaml failed: serviceaccounts "pre-install-kibana-kibana" already exists
# 删除 serviceaccount
kubectl delete serviceaccount pre-install-kibana-kibana

helm install kibana kibana
Error: INSTALLATION FAILED: failed pre-install: warning: Hook pre-install kibana/templates/pre-install-role.yaml failed: roles.rbac.authorization.k8s.io "pre-install-kibana-kibana" already exists
# 删除role
kubectl delete role pre-install-kibana-kibana


helm uninstall kibana
Error: uninstallation completed with 1 error(s): warning: Hook post-delete kibana/templates/configmap-helm-scripts.yaml failed: configmaps "kibana-kibana-helm-scripts" already exists
# 删除configmap
kubectl delete configmap kibana-kibana-helm-scripts

helm install kibana kibana
Error: INSTALLATION FAILED: failed pre-install: warning: Hook pre-install kibana/templates/pre-install-rolebinding.yaml failed: rolebindings.rbac.authorization.k8s.io "pre-install-kibana-kibana" already exists
# 删除rolebinding
kubectl delete rolebinding pre-install-kibana-kibana