1 00:00:02,060 --> 00:00:05,440 Now what's so special about Laravel and PHP? 2 00:00:05,440 --> 00:00:08,140 Well, for one, this course is about Docker 3 00:00:08,140 --> 00:00:11,220 and all these examples thus far have mostly been 4 00:00:11,220 --> 00:00:14,290 about Node and MongoDB and React. 5 00:00:14,290 --> 00:00:16,500 I had some pipe examples 6 00:00:16,500 --> 00:00:19,350 but I really wanna emphasize that you can use Docker 7 00:00:19,350 --> 00:00:23,520 for anything, especially for any web technology. 8 00:00:23,520 --> 00:00:28,520 And Laravel is the most popular PHP Framework out there. 9 00:00:29,300 --> 00:00:32,430 It's really fun to work with it, I like it a lot, 10 00:00:32,430 --> 00:00:34,460 but setting up our local machine 11 00:00:34,460 --> 00:00:37,970 for Laravel development can be quite annoying. 12 00:00:37,970 --> 00:00:40,780 And that's not really a Laravel's fault, 13 00:00:40,780 --> 00:00:45,060 instead, having a PHP set up can be a bit annoying. 14 00:00:45,060 --> 00:00:47,900 Now, if we explore Laravel documentation 15 00:00:47,900 --> 00:00:51,740 we can learn about the server requirements we can learn 16 00:00:51,740 --> 00:00:54,450 about our system and what should be installed there. 17 00:00:54,450 --> 00:00:57,290 And we see there's quite a lot 18 00:00:57,290 --> 00:00:59,320 of stuff which should be installed. 19 00:00:59,320 --> 00:01:02,430 We need PHP installed most importantly 20 00:01:02,430 --> 00:01:04,739 and that's already a problem. 21 00:01:04,739 --> 00:01:09,620 Installing PHP just like that is something you can do 22 00:01:09,620 --> 00:01:14,620 but PHP, unlike NodeJS is not enough. 23 00:01:14,760 --> 00:01:18,430 The great thing about NodeJS is that 24 00:01:18,430 --> 00:01:21,180 it's not only the language in which 25 00:01:21,180 --> 00:01:22,950 we were going to write our code, 26 00:01:22,950 --> 00:01:24,930 I mean, the language is JavaScript 27 00:01:24,930 --> 00:01:27,290 but NodeJS is a JavaScript runtime. 28 00:01:27,290 --> 00:01:30,110 So we can write our application code with that. 29 00:01:30,110 --> 00:01:33,390 But with Node JS, we only to build the server 30 00:01:33,390 --> 00:01:35,630 which handles the incoming requests. 31 00:01:35,630 --> 00:01:39,400 So we have application code and server logic, 32 00:01:39,400 --> 00:01:43,730 all in one piece, all written with NodeJS. 33 00:01:43,730 --> 00:01:46,900 They [indistinct] NodeJS applications 34 00:01:46,900 --> 00:01:49,550 we really only need to install NodeJS 35 00:01:49,550 --> 00:01:52,793 and we can get started and that's super easy to do. 36 00:01:53,730 --> 00:01:57,650 Now with Laravel and PHP specifically it's different, 37 00:01:57,650 --> 00:02:00,710 just installing PHP is not enough because 38 00:02:00,710 --> 00:02:02,860 in addition to that we'll then need a server. 39 00:02:02,860 --> 00:02:06,210 We can't build the server itself with PHP. 40 00:02:06,210 --> 00:02:09,720 Instead, we need a server that handles incoming requests 41 00:02:09,720 --> 00:02:12,740 which then triggers the PHP interpreter 42 00:02:12,740 --> 00:02:17,010 to run our PHP code for these incoming requests. 43 00:02:17,010 --> 00:02:20,000 And setting all of that up on your local machine 44 00:02:20,000 --> 00:02:22,590 possibly combined with MySQL or 45 00:02:22,590 --> 00:02:26,630 MongoDB databases, that can be quite annoying. 46 00:02:26,630 --> 00:02:28,780 And that's why this is a great example 47 00:02:28,780 --> 00:02:32,320 for using Docker for this more complex setup 48 00:02:32,320 --> 00:02:34,810 because you will see how easy it is in the end 49 00:02:34,810 --> 00:02:38,590 to use Docker for that and without installing anything 50 00:02:38,590 --> 00:02:41,180 on our local machine except for Docker, 51 00:02:41,180 --> 00:02:44,490 which we already have installed I guess, we'll then be able 52 00:02:44,490 --> 00:02:49,000 to write Laravel PHP code and build such applications. 53 00:02:49,000 --> 00:02:51,360 Now here's our target setup, which 54 00:02:51,360 --> 00:02:53,490 we wanna achieve in this module therefore. 55 00:02:53,490 --> 00:02:56,380 And this will be a setup which allows us to build 56 00:02:56,380 --> 00:03:00,020 Laravel applications without installing anything 57 00:03:00,020 --> 00:03:03,070 on our host machine, except for Docker. 58 00:03:03,070 --> 00:03:06,110 Now, the idea is that we have some folder 59 00:03:06,110 --> 00:03:09,366 on our host machine that contains the source code 60 00:03:09,366 --> 00:03:12,200 of this Laravel PHP application. 61 00:03:12,200 --> 00:03:14,650 So that will be the folder which we can open 62 00:03:14,650 --> 00:03:16,750 on our local machine with an editor 63 00:03:16,750 --> 00:03:20,790 of our choice in which we can write Laravel code. 64 00:03:20,790 --> 00:03:24,530 Now this source code folder will then be exposed 65 00:03:24,530 --> 00:03:29,200 to one container, the PHP Interpreter container. 66 00:03:29,200 --> 00:03:32,720 That is a container which has PHP installed inside of it. 67 00:03:32,720 --> 00:03:35,350 And that's a container which will have access 68 00:03:35,350 --> 00:03:39,900 to our source code so that it can interpret this source code 69 00:03:39,900 --> 00:03:44,210 and generate a response for incoming requests. 70 00:03:44,210 --> 00:03:46,610 And that's the next building block 71 00:03:46,610 --> 00:03:49,680 besides this PHP Interpreter, which we need 72 00:03:49,680 --> 00:03:53,200 to run our code we also need that extra server. 73 00:03:53,200 --> 00:03:55,730 Because unlike with Node as I mentioned, 74 00:03:55,730 --> 00:03:58,127 we don't build that server with PHP. 75 00:03:59,170 --> 00:04:01,460 That's when we'll have a second container, 76 00:04:01,460 --> 00:04:04,620 which has Nginx in it, which is a web server 77 00:04:04,620 --> 00:04:08,670 and that container and this web server will basically 78 00:04:08,670 --> 00:04:13,010 take incoming requests then go to the PHP Interpreter 79 00:04:13,010 --> 00:04:16,660 and let that PHP Interpreter generate a response 80 00:04:16,660 --> 00:04:18,380 and send that response back to 81 00:04:18,380 --> 00:04:20,192 the clients who sent the request. 82 00:04:21,529 --> 00:04:24,250 Now for storing data, we're going to add 83 00:04:24,250 --> 00:04:28,910 a MySQL database and you could also use MongoDB databases 84 00:04:28,910 --> 00:04:31,850 in Laravel apps, but most commonly you work 85 00:04:31,850 --> 00:04:35,900 with SQL databases and therefore I'll show this setup. 86 00:04:35,900 --> 00:04:39,311 And of course our PHP Interpreter in the end 87 00:04:39,311 --> 00:04:43,960 needs to be able to communicate with MySQL database. 88 00:04:43,960 --> 00:04:47,890 Our level framework, which is just a bunch of PHP code 89 00:04:47,890 --> 00:04:50,630 in the end needs to be able to communicate here. 90 00:04:50,630 --> 00:04:53,140 So that's a number of container we need. 91 00:04:53,140 --> 00:04:56,570 Now these three containers, three individual 92 00:04:56,570 --> 00:04:58,870 separated containers which still 93 00:04:58,870 --> 00:05:03,090 will work together somehow are application containers. 94 00:05:03,090 --> 00:05:06,520 We don't use them for utility functionality, 95 00:05:06,520 --> 00:05:09,790 instead, these containers will stay up and running 96 00:05:09,790 --> 00:05:12,570 as long as our application is up and running. 97 00:05:12,570 --> 00:05:15,340 Because they are dealing with incoming requests 98 00:05:15,340 --> 00:05:18,320 with handling these requests and generating 99 00:05:18,320 --> 00:05:21,090 responses with help of PHP at Laravel 100 00:05:21,090 --> 00:05:24,233 and they are dealing with data storage in the database. 101 00:05:25,630 --> 00:05:29,090 But besides these three application containers 102 00:05:29,090 --> 00:05:33,950 our setup also needs a couple of utility containers. 103 00:05:33,950 --> 00:05:38,000 Because it turns out that in Laravel applications, 104 00:05:38,000 --> 00:05:43,000 there are three kinds of tools, utilities, which we need. 105 00:05:43,970 --> 00:05:46,620 For example, we need Composer. 106 00:05:46,620 --> 00:05:51,620 Composer is basically to PHP what NPM is to Node. 107 00:05:52,530 --> 00:05:54,850 It's a package manager which we can use 108 00:05:54,850 --> 00:05:57,400 to install third party packages and 109 00:05:57,400 --> 00:06:00,950 we will use Composer to create Laravel application 110 00:06:00,950 --> 00:06:03,960 and also Laravel will use Composer 111 00:06:03,960 --> 00:06:06,960 to install dependencies, which it needs. 112 00:06:06,960 --> 00:06:09,480 In addition Laravel ships with its 113 00:06:09,480 --> 00:06:12,660 own tool called Laravel Artisian. 114 00:06:12,660 --> 00:06:15,650 Now this is a command which we for example use 115 00:06:15,650 --> 00:06:18,720 to run migrations against our database 116 00:06:18,720 --> 00:06:21,740 and write initial starting data to the database. 117 00:06:21,740 --> 00:06:24,680 And we use it for a couple of other things as well. 118 00:06:24,680 --> 00:06:26,790 If you don't know how to work with Laravel, 119 00:06:26,790 --> 00:06:29,310 that's absolutely no problem, it's just about 120 00:06:29,310 --> 00:06:33,810 the project set up here we won't write any real code here. 121 00:06:33,810 --> 00:06:37,010 So that's another tool, which we need to expose though. 122 00:06:37,010 --> 00:06:40,710 And last but not least, we will also use NPM here. 123 00:06:40,710 --> 00:06:43,620 It's not that important but Laravel uses it 124 00:06:43,620 --> 00:06:45,740 for some of its front end logic. 125 00:06:45,740 --> 00:06:48,860 So if in your views, which are returned by Laravel 126 00:06:48,860 --> 00:06:51,550 you need some Java script code, for example. 127 00:06:51,550 --> 00:06:54,180 And since I wanna present a complete setup 128 00:06:54,180 --> 00:06:57,430 which you could use for developing Laravel applications 129 00:06:57,430 --> 00:06:59,463 we will also add that container. 130 00:07:00,460 --> 00:07:03,500 So overall we'll have six containers 131 00:07:03,500 --> 00:07:06,900 which are to some extent, working with our source code. 132 00:07:06,900 --> 00:07:08,870 And this is the set up which we are now 133 00:07:08,870 --> 00:07:11,003 going to build for all this module.