Add docker-compose setup

[glensc]

This is my attempt on #231.

Uses docker layered builds to optimize caching, the resulting image will be smallest, but layers caching is efficinent.

besides that, uses official docker PHP alpine image: php:7.3-fpm-alpine and same for mongo image. I've used percona variant but can switch to MongoDB if needed.

The customizations, for now, just edit your local docker-compose.yml or create docker-compose.override.yml with overrides. But could be extended with .env overrides in separate PR if there's interest.

[lauripiisang]

Please add docker usage information to README as well.

[glensc]

added readme section.

I omitted the configuration readme block, as I intended to make it automatic:

• https://github.com/glensc/xhgui/commits/docker-mongo-init

But this needs to be tested first, I will not push to this branch until tested, so this could be still merged.

[glensc]

ok, tested the mongodb indexes init. so adding commits to this branch.

➔ docker-compose exec mongo mongo xhprof --eval 'db.results.getIndexes()'
Percona Server for MongoDB shell version v3.6.11-3.1
connecting to: mongodb://127.0.0.1:27017/xhprof?gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("c8da7aa9-35ce-4141-a5da-2aa6c3c55c62") }
Percona Server for MongoDB server version: v3.6.11-3.1
[
	{
		"v" : 2,
		"key" : {
			"_id" : 1
		},
		"name" : "_id_",
		"ns" : "xhprof.results"
	},
	{
		"v" : 2,
		"key" : {
			"meta.SERVER.REQUEST_TIME" : -1
		},
		"name" : "meta.SERVER.REQUEST_TIME_-1",
		"ns" : "xhprof.results"
	},
	{
		"v" : 2,
		"key" : {
			"profile.main().wt" : -1
		},
		"name" : "profile.main().wt_-1",
		"ns" : "xhprof.results"
	},
	{
		"v" : 2,
		"key" : {
			"profile.main().mu" : -1
		},
		"name" : "profile.main().mu_-1",
		"ns" : "xhprof.results"
	},
	{
		"v" : 2,
		"key" : {
			"profile.main().cpu" : -1
		},
		"name" : "profile.main().cpu_-1",
		"ns" : "xhprof.results"
	},
	{
		"v" : 2,
		"key" : {
			"meta.url" : 1
		},
		"name" : "meta.url_1",
		"ns" : "xhprof.results"
	}
]

[markstory]

What is xip.io?

[glensc]

http://xip.io/

wildcard DNS for everyone 
    
What is xip.io?

xip.io is a magic domain name that provides wildcard DNS
for any IP address. Say your LAN IP address is 10.0.0.1.
Using xip.io,

          10.0.0.1.xip.io   resolves to   10.0.0.1
      www.10.0.0.1.xip.io   resolves to   10.0.0.1
   mysite.10.0.0.1.xip.io   resolves to   10.0.0.1
  foo.bar.10.0.0.1.xip.io   resolves to   10.0.0.1

[markstory]

Neat! thanks for sharing.

[glensc]

thanks! :)