helm docs

Signed-off-by: Nic <qianyong@api7.ai>

Author: nic-6443

charts/apisix/README.md

@@ -151,7 +151,7 @@ The command removes all the Kubernetes components associated with the chart and
 | control.service.port | int | `9090` | which port to use for Apache APISIX Control API |
 | control.service.servicePort | int | `9090` | Service port to use for Apache APISIX Control API |
 | control.service.type | string | `"ClusterIP"` | Control service type |
-| etcd | object | `{"auth":{"rbac":{"create":false,"rootPassword":""},"tls":{"certFilename":"","certKeyFilename":"","enabled":false,"existingSecret":"","sni":"","verify":true}},"autoCompactionMode":"periodic","autoCompactionRetention":"1h","containerSecurityContext":{"enabled":false},"enabled":true,"prefix":"/apisix","replicaCount":3,"service":{"port":2379},"timeout":30}` | etcd configuration use the FQDN address or the IP of the etcd |
+| etcd | object | `{"auth":{"rbac":{"create":false,"rootPassword":""},"tls":{"certFilename":"","certKeyFilename":"","enabled":false,"existingSecret":"","sni":"","verify":true}},"autoCompactionMode":"periodic","autoCompactionRetention":"1h","containerSecurityContext":{"enabled":false},"enabled":true,"image":{"tag":"latest"},"prefix":"/apisix","replicaCount":3,"service":{"port":2379},"timeout":30}` | etcd configuration use the FQDN address or the IP of the etcd |
 | etcd.auth | object | `{"rbac":{"create":false,"rootPassword":""},"tls":{"certFilename":"","certKeyFilename":"","enabled":false,"existingSecret":"","sni":"","verify":true}}` | if etcd.enabled is true, set more values of bitnami/etcd helm chart |
 | etcd.auth.rbac.create | bool | `false` | No authentication by default. Switch to enable RBAC authentication |
 | etcd.auth.rbac.rootPassword | string | `""` | root password for etcd. Requires etcd.auth.rbac.create to be true. |
@@ -163,6 +163,7 @@ The command removes all the Kubernetes components associated with the chart and
 | etcd.auth.tls.verify | bool | `true` | whether to verify the etcd endpoint certificate when setup a TLS connection to etcd |
 | etcd.containerSecurityContext | object | `{"enabled":false}` | added for backward compatibility with old kubernetes versions, as seccompProfile is not supported in kubernetes < 1.19 |
 | etcd.enabled | bool | `true` | install etcd(v3) by default, set false if do not want to install etcd(v3) together |
+| etcd.image | object | `{"tag":"latest"}` | etcd image tag |
 | etcd.prefix | string | `"/apisix"` | apisix configurations prefix |
 | etcd.timeout | int | `30` | Set the timeout value in seconds for subsequent socket operations from apisix to etcd cluster |
 | externalEtcd | object | `{"existingSecret":"","host":["http://etcd.host:2379"],"password":"","secretPasswordKey":"etcd-root-password","user":"root"}` | external etcd configuration. If etcd.enabled is false, these configuration will be used. |