Mixer-Origin-Edge

First, two images are defined. The mixer requires more CPU and memory than a typical node.

Next this example adds a mixer to roles having the MIX capability and using the mixer image. Note that the mixer role does not define any parent role.

Then finally, initScripts will run the mixer install script, deploying the BrewMixer plugin and webapp when mixer nodes are created by Terraform service.

Complete Example:

{
    "name": "oem-oci-1",
    "description": "This is an OCI example.",
    "cloudPlatform": "OCI",
    "cloudProperties": "environment=testing;subnet=public-subnet-red5-ci-deployments-vnet;security_group=red5-ci-deployments-nodes-nsg;volume_size=50",
    "shuffleSizeExpression": "1",
    "images": {
        "BaseImage": {
            "name": "BaseImage",
            "image": "as-node-b20-b375",
            "cloudProperties": "instance_type=VM.Standard.E4.Flex-1-4"
        },
        "MixerImage": {
            "name": "MixerImage",
            "image": "as-node-b20-b375",
            "cloudProperties": "instance_type=VM.Standard.E4.Flex-4-16"
        }
    },
    "roles": {
        "origin": {
            "name": "origin",
            "imageName": "BaseImage",
            "capabilities": ["PUBLISH"],
            "initScripts": ["sudo chown -R ubuntu /usr/local/red5pro"]
        },
        "edge": {
            "name": "edge",
            "imageName": "BaseImage",
            "parentRoleName": "origin",
            "parentCardinality": "GLOBAL",
            "capabilities": ["SUBSCRIBE"],
            "initScripts": ["sudo chown -R ubuntu /usr/local/red5pro"]
        },
        "mixer": {
            "name": "mixer",
            "imageName": "MixerImage",
            "capabilities": ["MIX"],
            "initScripts": ["sudo /usr/local/red5pro/extras/brewmixer/node-mixer-sm-deploy.sh"]
        }
    },

    "groups": {
        "ashburn": {
            "subGroupName": "ashburn",
            "groupType": "main",
            "cloudProperties": "region=us-ashburn-1",
            "rulesByRole": {
                "origin": {
                    "nodeRoleName": "origin",
                    "min": 1,
                    "max": 10,
                    "increment": 1,
                    "outExpression": "avg(connections.publisher) > 15",
                    "inExpression": "avg(connections.publisher) < 2",
                    "capacityRankingExpression": "connections.publisher",
                    "capacityLimitExpression": "20"
                },
                "edge": {
                    "nodeRoleName": "edge",
                    "min": 1,
                    "max": 10,
                    "increment": 1,
                    "outExpression": "avg(connections.subscriber) > 150",
                    "inExpression": "avg(connections.subscriber) < 20",
                    "capacityRankingExpression": "connections.subscriber",
                    "capacityLimitExpression": "200"
                },
                "mixer": {
                    "nodeRoleName": "mixer",
                    "min": 1,
                    "max": 1,
                    "increment": 1,
                    "outExpression": "avg(connections.subscriber) > 150",
                    "inExpression": "avg(connections.subscriber) < 10",
                    "capacityRankingExpression": "connections.subscriber",
                    "capacityLimitExpression": "200"
                }
            }
        }
    }
}