在Elasticsearch中具有两个节点的集群中启用安全性

如何解决在Elasticsearch中具有两个节点的集群中启用安全性

我试图在Elasticsearch节点中启用安全功能，但是每当我打开“ xpack.security.enabled：true”时，我的Elasticsearch根本就不会启动。我该如何解决？

这是我在两个Elasticsearch节点上的配置： 节点1：

...
"pickup": {
                        "code": "pickup.pickup","title": "Standard","description": "If the cost of the order ...","cost": 0,"tax_class_id": 0,"text": "0.00 TMT"
                    }
...

节点2：

# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
#       Before you set out to tweak and tune the configuration,make sure you
#       understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: "elastic-a"
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: "elastic-master"
node.master: true
node.data: true
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /var/lib/elasticsearch
#
# Path to log files:
#
path.logs: /var/log/elasticsearch
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 192.168.143.30
#http.host: 0.0.0.0
#
# Set a custom port for HTTP:
#
#http.port: 9200
#
# For more information,consult the network module documentation.
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when this node is started:
# The default list of hosts is ["127.0.0.1","[::1]"]
#
discovery.seed_hosts: ["192.168.143.30","192.168.143.23"]
#
# Bootstrap the cluster using an initial set of master-eligible nodes:
#
cluster.initial_master_nodes: ["elastic-master","elastic-slave"]
#
# For more information,consult the discovery and cluster formation module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information,consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true
action.auto_create_index: .monitoring*,.watches,.triggered_watches,.watcher-history*,.ml*
xpack.security.enabled: true

我可以在不设置节点（单个节点）的情况下启用安全性功能，但是在设置节点后无法使用。

sudo journalctl -f日志：

# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
#       Before you set out to tweak and tune the configuration,make sure you
#       understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: "elastic-a"
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: "elastic-slave"
node.master: true
node.data: true
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /var/lib/elasticsearch
#
# Path to log files:
#
path.logs: /var/log/elasticsearch
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 192.168.143.23
#http.host: 0.0.0.0
#
# Set a custom port for HTTP:
#
#http.port: 9200
#
# For more information,.ml*
xpack.security.enabled: true

解决方法

如果您启用安全性，则必须使节点之间通过SSL相互通信，即，您需要将节点配置为encrypt communications between them。因此，您需要执行一些步骤：

步骤1：Generate a node certificate

在此步骤中，有两个选项：

A。。如果您没有任何根证书颁发机构来签名证书，则可以使用bin/elasticsearch-certutil ca创建证书颁发机构（遵循here解释的步骤）。您将获得以PKCS＃12编码的证书，其中包含根CA证书，节点证书和私钥。

B 。如果您的组织具有根证书颁发机构（Digicert等），则可以create a CSR（证书签名请求）提交到根CA。通常，您将获得以PKCS＃7编码的证书。 PS：让我们知道这是否是您要走的路，因为还需要一些步骤才能将其转换为PKCS＃12。

请注意，出于测试目的，您绝对可以在两个节点上使用相同的证书，即您不需要为每个节点生成一个证书。

步骤2：Modify your configuration

获得节点证书后（通过选项A或B），可以通过在elasticsearch.yml文件中添加以下内容来修改两个节点上的配置：

# enable security
xpack.security.enabled: true

# make sure the nodes talk in SSL to each other
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.keystore.path: certs/mynode.p12 
xpack.security.transport.ssl.truststore.path: certs/mynode.p12

之后，您可以重新启动群集，因为它们现在可以使用SSL相互通信。