Read and write configs to a file in json_arch. Remove omitempty from…

[jwatson0]

Read and write configs to a file in json_arch. Remove omitempty from Configuration so that all options are written to the conf file.

This allows RegionNames, ZoneNames, and IPRanges to be overridden at run-time.

Config file name is json_arch/_conf.json, using the arch name from -a

Usage:
$ ./spigo -saveconfig
2016/05/24 17:13:36 Saving config to json_arch/netflixoss_conf.json
2016/05/24 17:13:36 Loading architecture from json_arch/netflixoss_arch.json
...
2016/05/24 17:13:46 netflixoss.us-east-1.zoneB..eureka01...eureka.eureka: closing
2016/05/24 17:13:46 spigo: complete

$ ls -log json_arch/netflixoss_*
-rw-r--r-- 1 1254 May 20 12:19 json_arch/netflixoss_arch.json
-rw-r--r-- 1 1108 May 24 17:13 json_arch/netflixoss_conf.json

$ cat json_arch/netflixoss_conf.json
{
"arch": "netflixoss",
"graphmlfile": "",
"graphjsonfile": "",
"neo4jurl": "",
"runduration": 10000000000,
"dunbar": 0,
"population": 100,
"msglog": false,
"regions": 1,
"regionnames": [
"us-east-1",
"us-west-2",
"eu-west-1",
"eu-central-1",
"ap-southeast-1",
"ap-southeast-2"
],
"ipranges": [
[
"54.198.",
"54.221.",
"50.19."
],
[
"54.245.",
"54.244.",
"54.214."
],
[
"54.247.",
"54.246.",
"54.288."
],
[
"54.93.",
"54.28.",
"54.78."
],
[
"54.251.",
"54.254.",
"54.255."
],
[
"54.252.",
"54.253.",
"54.206."
]
],
"zonenames": [
"zoneA",
"zoneB",
"zoneC"
],
"collect": false,
"stopstep": 0,
"eurekapoll": "1s",
"filter": false,
"keyvals": ""
}

[adrianco]

Thanks!