Refactoring: Copy minikube example

This commit copies Lukas Larsson's (@garazdawi) and Siri Hansen's
(@sirihansen) example from:

https://github.com/erlang/docker-erlang-example/tree/minikube-dist

advanced_examples/minikube-dist/backend/config/sys.config.src

@@ -0,0 +1,7 @@
+[%% Kernel/logger
+ {kernel, [{logger,[{handler,default,logger_std_h,#{}}]},
+          %%,{logger_level,info}
+           {inet_dist_listen_min, 12345},
+           {inet_dist_listen_max, 12345}
+          ]}
+].

advanced_examples/minikube-dist/backend/config/vm.args.src

@@ -0,0 +1,4 @@
+-name dockerwatch@backend.default.svc.cluster.local
+-setcookie dockerwatch
+-start_epmd false
+-epmd_module epmd_static

advanced_examples/minikube-dist/backend/rebar.config

@@ -0,0 +1,16 @@
+
+{deps, []}.
+
+{relx, [{release, {"backend", "1.0.0"}, [backend]},
+        {vm_args_src, "config/vm.args.src"},
+        {sys_config_src, "config/sys.config.src"},
+        {dev_mode, true},
+        {include_erts, false},
+        {extended_start_script, true}
+    ]}.
+
+{profiles, [{prod, [{relx, [{dev_mode, false},
+                            {include_erts, true},
+                            {include_src, false}]}]}
+           ]}.
+%% vim: ft=erlang

advanced_examples/minikube-dist/backend/src/backend.app.src

@@ -0,0 +1,14 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+{application, backend, [
+	{description, "Mnesia node."},
+	{vsn, "1.0.0"},
+	{modules, []},
+	{registered, [backend_sup]},
+	{applications, [kernel,
+                        stdlib,
+                        mnesia
+	]},
+	{mod, {backend_app, []}},
+	{env, []}
+]}.

advanced_examples/minikube-dist/backend/src/backend_app.erl

@@ -0,0 +1,23 @@
+%%
+%% Copyright (C) 2014 Björn-Egil Dahlberg
+%%
+%% File:    dockerwatch_app.erl
+%% Author:  Björn-Egil Dahlberg
+%% Created: 2014-09-10
+%%
+
+-module(backend_app).
+-behaviour(application).
+
+-export([start/2,stop/1]).
+%% API.
+
+start(_Type, _Args) ->
+    mnesia:change_table_copy_type(schema, node(), disc_copies),
+    mnesia:create_table(dockerwatch,
+                        [{disc_copies,[node()]},
+                         {ram_copies,[]}]),
+    {ok, self()}.
+
+stop(_State) ->
+    ok.

advanced_examples/minikube-dist/backend/src/epmd_static.erl

@@ -0,0 +1,27 @@
+%%
+%% Copyright (C) 2014 Björn-Egil Dahlberg
+%%
+%% File:    dockerwatch_app.erl
+%% Author:  Björn-Egil Dahlberg
+%% Created: 2014-09-10
+%%
+
+-module(epmd_static).
+
+-export([start_link/0, register_node/2, register_node/3,
+         port_please/2, address_please/3]).
+%% API.
+
+start_link() ->
+    ignore.
+
+register_node(Name, Port) ->
+    register_node(Name, Port, inet_tcp).
+register_node(_Name, _Port, _Driver) ->
+    {ok, 0}.
+
+port_please(_Name, _Host) ->
+    {port, 12345, 5}.
+
+address_please(Name, Host, AddressFamily) ->
+    erl_epmd:address_please(Name, Host, AddressFamily).