View Source ClusterEC2.Strategy.Tags (libcluster_ec2 v0.8.1)

This clustering strategy works by loading all instances that have the given tag associated with them.

All instances must be started with the same app name and have security groups configured to allow inter-node communication.

config :libcluster,
  topologies: [
    tags_example: [
      strategy: Elixir.ClusterEC2.Strategy.Tags,
      config: [
        ec2_tagname: "mytag",
        ec2_tagvalue: "tagvalue",
        app_prefix: "app",
        ip_to_nodename: &my_nodename_func/2,
        ip_type: :private,
        polling_interval: 10_000]]],
        show_debug: false

configuration-options
Configuration Options

Key	Required	Description
`:ec2_tagname`	yes	Name of the EC2 instance tag to look for.
`:ec2_tagvalue`	no	Can be passed a static value (string), a 0-arity function, or a 1-arity function (which will be passed the value of `:ec2_tagname` at invocation).
`:app_prefix`	no	Will be prepended to the node's private IP address to create the node name.
`:ip_type`	no	One of :private or :public, defaults to :private
`:ip_to_nodename`	no	defaults to `app_prefix@ip` but can be used to override the nodename
`:polling_interval`	no	Number of milliseconds to wait between polls to the EC2 api. Defaults to 5_000
`:show_debug`	no	True or false, whether or not to show the debug log. Defaults to true