Helper Code to Launch Instances with Elasticsearch configured .

gistfile1.txt

### Sample Helper Code to Launcg Elasticsearch cluster preconfigured Instance

from troposphere import Ref, Join
from troposphere import autoscaling, policies, Base64
from magicdict import MagicDict



class EC2_MASTER(MagicDict):
    def __init__(self, parameters):
        super(EC2_MASTER, self).__init__()

        self.launch_configuration = autoscaling.LaunchConfiguration(
            "LaunchConfiguration",
            Metadata={
                "AWS::CloudFormation::Init": {
                    "configSets": {
                        "elastic_install": ["create_lvm","install_elastic_repo","install_elasticsearch"]
                    },
                    "create_lvm": {
                      "commands": {
                        "01_pvcreate": {
                            "command": "pvcreate /dev/xvdf"
                            },
                        "02_vgcreate": {
                            "command": "vgcreate data /dev/xvdf"
                            },
                          "03_lvcreate": {
                              "command": "lvcreate -n data -l 100%FREE data"
                            },
                          "04_mkfs": {
                            "command": "mkfs.ext4 /dev/data/data"
                            },
                          "05_mkdir": {
                            "command": "mkdir /data"
                            },
                          "06_fstab": {
                            "command": 'echo "/dev/data/data /data ext4 defaults 0 2" >> /etc/fstab'
                            },
                           "07_mount": {
                            "command": "mount -a"
                            }
                        }
                    },
    
    // Some more secret code