Creds *should* now be loadable from environment variables starting with NadekoBot:

src/NadekoBot/NadekoBot.cs

@@ -20,6 +20,7 @@ using NadekoBot.TypeReaders;
 using System.Collections.Concurrent;
 using NadekoBot.Modules.Music;
 using NadekoBot.Services.Database.Models;
+using Microsoft.Extensions.Configuration;
 
 namespace NadekoBot
 {
@@ -51,6 +52,8 @@ namespace NadekoBot
 
         public async Task RunAsync(params string[] args)
         {
+            
+
             SetupLogger();
             _log = LogManager.GetCurrentClassLogger();
 

src/NadekoBot/Services/Impl/BotCredentials.cs

@@ -5,6 +5,7 @@ using System.IO;
 using Discord;
 using System.Linq;
 using NLog;
+using Microsoft.Extensions.Configuration;
 
 namespace NadekoBot.Services.Impl
 {
@@ -31,34 +32,54 @@ namespace NadekoBot.Services.Impl
         public int TotalShards { get; }
         public string CarbonKey { get; }
 
+        public string credsFileName { get; } = Path.Combine(Directory.GetCurrentDirectory(), "credentials.json");
+
         public BotCredentials()
         {
             _log = LogManager.GetCurrentClassLogger();
 
             try { File.WriteAllText("./credentials_example.json", JsonConvert.SerializeObject(new CredentialsModel(), Formatting.Indented)); } catch { }
-            if (File.Exists("./credentials.json"))
+            if(!File.Exists(credsFileName))
+                _log.Warn($"credentials.json is missing. Attempting to load creds from environment variables prefixed with 'NadekoBot:'. Example is in {Path.GetFullPath("./credentials_example.json")}");
+            try
             {
-                var cm = JsonConvert.DeserializeObject<CredentialsModel>(File.ReadAllText("./credentials.json"));
-                Token = cm.Token;
-                OwnerIds = cm.OwnerIds;
-                LoLApiKey = cm.LoLApiKey;
-                GoogleApiKey = cm.GoogleApiKey;
-                MashapeKey = cm.MashapeKey;
-                OsuApiKey = cm.OsuApiKey;
-                TotalShards = cm.TotalShards < 1 ? 1 : cm.TotalShards;
-                BotId = cm.BotId ?? cm.ClientId;
-                ClientId = cm.ClientId;
-                SoundCloudClientId = cm.SoundCloudClientId;
-                CarbonKey = cm.CarbonKey;
-                if (cm.Db == null)
-                    Db = new DB("sqlite", "");
-                else
-                    Db = new DB(cm.Db.Type, cm.Db.ConnectionString);
+                var configBuilder = new ConfigurationBuilder();
+                configBuilder.AddJsonFile(credsFileName)
+                    .AddEnvironmentVariables("NadekoBot:");
+
+                var data = configBuilder.Build();
+
+                Token = data[nameof(Token)];
+                if (string.IsNullOrWhiteSpace(Token))
+                    throw new ArgumentNullException(nameof(Token), "Token is missing from credentials.json or Environment varibles.");
+                OwnerIds = data.GetSection("OwnerIds").GetChildren().Select(c => ulong.Parse(c.Value)).ToArray();
+                LoLApiKey = data[nameof(LoLApiKey)];
+                GoogleApiKey = data[nameof(GoogleApiKey)];
+                MashapeKey = data[nameof(MashapeKey)];
+                OsuApiKey = data[nameof(OsuApiKey)];
+
+                int ts = 1;
+                int.TryParse(data[nameof(TotalShards)], out ts);
+                TotalShards = ts < 1 ? 1 : ts;
+
+                ulong clId = 0;
+                ulong.TryParse(data[nameof(ClientId)], out clId);
+                ClientId = ulong.Parse(data[nameof(ClientId)]);
+
+                SoundCloudClientId = data[nameof(SoundCloudClientId)];
+                CarbonKey = data[nameof(CarbonKey)];
+                var dbSection = data.GetSection("db");
+                Db = new DB(string.IsNullOrWhiteSpace(dbSection["Type"]) 
+                                ? "sqlite" 
+                                : dbSection["Type"], 
+                            string.IsNullOrWhiteSpace(dbSection["ConnectionString"]) 
+                                ? "Filename=./data/NadekoBot.db" 
+                                : dbSection["ConnectionString"]);
             }
-            else
+            catch (Exception ex)
             {
-                _log.Fatal($"credentials.json is missing. Failed to start. Example is in {Path.GetFullPath("./credentials_example.json")}");
-                throw new FileNotFoundException();
+                _log.Warn(ex);
+                throw;
             }
             
         }
@@ -66,7 +87,6 @@ namespace NadekoBot.Services.Impl
         private class CredentialsModel
         {
             public ulong ClientId { get; set; } = 123123123;
-            public ulong? BotId { get; set; }
             public string Token { get; set; } = "";
             public ulong[] OwnerIds { get; set; } = new ulong[1];
             public string LoLApiKey { get; set; } = "";
@@ -75,7 +95,7 @@ namespace NadekoBot.Services.Impl
             public string OsuApiKey { get; set; } = "";
             public string SoundCloudClientId { get; set; } = "";
             public string CarbonKey { get; set; } = "";
-            public DB Db { get; set; }
+            public DB Db { get; set; } = new DB("sqlite", "Filename=./data/NadekoBot.db");
             public int TotalShards { get; set; } = 1;
         }
 

src/NadekoBot/credentials_example.json

@@ -1,6 +1,5 @@
 {
   "ClientId": 123123123,
-  "BotId": null,
   "Token": "",
   "OwnerIds": [
     0
@@ -11,6 +10,9 @@
   "OsuApiKey": "",
   "SoundCloudClientId": "",
   "CarbonKey": "",
-  "Db": null,
+  "Db": {
+    "Type": "sqlite",
+    "ConnectionString": "Filename=./data/NadekoBot.db"
+  },
   "TotalShards": 1
 }

src/NadekoBot/project.json

@@ -42,7 +42,10 @@
     "Discord.Net": {
       "target": "project"
     },
-    "System.Xml.XPath": "4.0.1"
+    "System.Xml.XPath": "4.0.1",
+    "Microsoft.Extensions.Configuration": "1.0.0",
+    "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
+    "Microsoft.Extensions.Configuration.Json": "1.0.0"
   },
   "tools": {
     "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final"