Marathon json generator for 3 mongos

gistfile1.js

var _ = require("underscore/underscore.js");

replicas=3;
seedlist=_.range(replicas)
	.map(function(r) {return r+1})
	.map(function(r) {return "r" + r + ".tweventy.mongo.service.dc1.consul"})
	.join()

console.log(JSON.stringify({
	"id": "/mongo",
	"groups": [{
		"id": "tweventy",
		"apps": _.range(replicas).map(function(r) {return r+1}).map(function(r) { return {
			"id": "r" + r,
			"container": {
				"type": "DOCKER",
				"docker": {
					"image": "mongo:2.8.0",
					"network": "BRIDGE",
					"portMappings": [
						{ "containerPort": 27017, "hostPort": "27017", "protocol": "tcp"}
					]
				},
				"volumes": [{
					"containerPath": "/data/db",
					"hostPath": "/local/tweventy/mongo/r" + r,
					"mode": "RW"
				},
				{
					"containerPath": "/etc/mongodb-keyfile.orig",
					"hostPath": "/cluster/tweventy/mongodb-keyfile",
					"mode": "RO"
				}]
			},
			"cmd": [
				"cp /etc/mongodb-keyfile.orig /etc/mongodb-keyfile",
				"chown mongodb /etc/mongodb-keyfile",
				"chmod 600 /etc/mongodb-keyfile",
				"/entrypoint.sh " +
				[
					"--replSet", "rs1" /* + (r == 1 ? "/" + seedlist : "")*/,
					"--keyFile", "/etc/mongodb-keyfile",
					"--directoryperdb"
				].join(" ")
			].join("; "),
			"env": { "SERVICE_TAGS": "r" + r + ".tweventy" },
			"cpus": 1,
			"mem": 512,
			"instances": 1,
			"healthChecks": [{
				"protocol": "TCP"
			}],
			"upgradeStrategy": {
		        "minimumHealthCapacity": 0.0
    		},
			"constraints": [["hostname", "CLUSTER", "master" + r]]
		}})
	}]
}));