feat: create redisha module

- manage redis/sentinel clusters
- ensure ulimit_managed is false
- dynamically find servers in role to identify master
- add redisadm and sentineladm commands
- add script to check if the current host in the master

modules/redisha/manifests/tools.pp

@@ -0,0 +1,35 @@
+class redisha::tools (
+  Stdlib::Host $redis_host = $redisha::params::redis_host,
+  Stdlib::Port $redis_port = $redisha::params::redis_port,
+  Stdlib::Port $sentinel_port = $redisha::params::sentinel_port,
+  Optional[String] $requirepass = $redisha::params::requirepass,
+) inherits redisha::params {
+
+  # add command to automate redis-cli commands against redis
+  file {'/usr/local/sbin/redisadm':
+    ensure  => 'file',
+    owner   => 'root',
+    group   => 'root',
+    mode    => '0700',
+    content => template('redisha/redisadm.erb'),
+  }
+
+  # add command to automate redis-cli commands against sentinel
+  file {'/usr/local/sbin/sentineladm':
+    ensure  => 'file',
+    owner   => 'root',
+    group   => 'root',
+    mode    => '0700',
+    content => template('redisha/sentineladm.erb'),
+  }
+
+  # add command to check if current host is the redis master
+  file {'/usr/local/bin/check_redis_master':
+    ensure  => 'file',
+    owner   => 'root',
+    group   => 'root',
+    mode    => '0755',
+    content => template('redisha/check_redis_master.erb'),
+  }
+
+}