Starting from v2.9.0, LiteFlow supports Etcd' rule configuration source.

Dependency

<dependency>
    <groupId>com.yomahub</groupId>
    <artifactId>liteflow-rule-etcd</artifactId>
    <version>2.9.3</version>
</dependency>

Configuration

You don't need to configure the liteflow.ruleSource path anymore.

Just configure the extra parameters of the plugin:

liteflow:
  rule-source-ext-data-map:
    endpoints: http://127.0.0.1:2379
    chainPath: /liteflow/chain
    scriptPath: /liteflow/script

liteflow.rule-source-ext-data={\
    "endpoints":"http://127.0.0.1:2379",\
    "chainPath":"/liteflow/chain",\
    "scriptPath":"/liteflow/script"\
}

// Make sure to add code blocks to your code group

Configuration instructions

Configuration Item	Description
endpoints	The connection string of zk, which can be a cluster
chainPath	Your rule directory node (there will be many rules below, one node per rule)
scriptPath	Your script directory node (there will be many scripts below, one node per script)

Description of stored data

In etcd, suppose your chainPath is: /liteflow/chain

Then each node under this path is a rule, the key of the node is chainId, and the value is simple EL (THEN(a,b,c)), for example:

/liteflow/chain

---chain1

---chain2

For the script path, suppose your scriptPath is: /liteflow/script

Then each node under this path is a script component. The key of the node has a fixed format: script component ID:script type:script name, and the value is the script data, for example:

/liteflow/script

---s1:script:script component s1

---s2:script:script component s2

About the script type, you can refer to the section Defining Script Components.

Auto Refresh

Using this Etcd configuration source plug-in, any rule changes in the Etcd node will be automatically pushed to the business system for real-time refresh. You don't need to do anything.

Example

In order to make it easy for everyone to get started with the configuration of the Etcd rule, here is a small demo that you can pull to run locally, you need to replace the Etcd configuration information.

Before running the project, read the readme.txt file in the project.

https://github.com/bryan31/liteflow-ext-rule-demo