1 00:00:00,079 --> 00:00:01,256 - [Voiceover] Hi and welcome back. 2 00:00:01,256 --> 00:00:05,239 In this video we're going to be setting up DigitalOcean. 3 00:00:05,239 --> 00:00:08,827 DigitalOcean is a provider of servers 4 00:00:08,827 --> 00:00:11,255 which means we can rent a server from them 5 00:00:11,255 --> 00:00:14,461 for a small amount of money each month. 6 00:00:14,461 --> 00:00:17,781 What that means, and the way it's different from Heroku 7 00:00:17,781 --> 00:00:20,564 is that in DigitalOcean we get access 8 00:00:20,564 --> 00:00:22,395 to the computer itself 9 00:00:22,395 --> 00:00:24,836 that is running our software. 10 00:00:24,836 --> 00:00:26,456 That means we can do things like 11 00:00:26,456 --> 00:00:28,247 change the users, 12 00:00:28,247 --> 00:00:30,611 add more programmes to run 13 00:00:30,611 --> 00:00:32,689 in the server simultaneously, 14 00:00:32,689 --> 00:00:35,724 as opposed to just our application. 15 00:00:35,724 --> 00:00:38,595 We can change security perimeters. 16 00:00:38,595 --> 00:00:41,325 We can potentially even deploy our application 17 00:00:41,325 --> 00:00:43,660 to many servers and connect them together. 18 00:00:43,660 --> 00:00:46,011 Essentially we can do anything we want, 19 00:00:46,011 --> 00:00:48,990 because when we rent through DigitalOcean 20 00:00:48,990 --> 00:00:53,002 we are going to own the server in which the app is running. 21 00:00:53,002 --> 00:00:55,876 However, when we deploy on Heroku, 22 00:00:55,876 --> 00:00:58,316 Heroku servers run our app, 23 00:00:58,316 --> 00:01:02,250 but we don't get access to the servers themselves. 24 00:01:02,250 --> 00:01:06,220 So if you want to deploy your application, 25 00:01:06,220 --> 00:01:08,128 and you want your application to scale, 26 00:01:08,128 --> 00:01:10,404 and you want to keep costs down, 27 00:01:10,404 --> 00:01:14,201 but you are willing to do a bit more work, 28 00:01:14,201 --> 00:01:17,888 DigitalOcean maybe the tool for you. 29 00:01:17,888 --> 00:01:19,261 There is a bit more work involved 30 00:01:19,261 --> 00:01:20,882 when deploying with DigitalOcean 31 00:01:20,882 --> 00:01:24,521 because we have to set up each of the servers. 32 00:01:24,521 --> 00:01:26,014 In Heroku we just press a button 33 00:01:26,014 --> 00:01:27,349 and the app gets deployed. 34 00:01:27,349 --> 00:01:29,700 Here we'll have to instal the database 35 00:01:29,700 --> 00:01:33,589 and instal the application into the server and run it. 36 00:01:33,589 --> 00:01:35,301 But it shouldn't take too long. 37 00:01:35,301 --> 00:01:36,758 And once you know how to do it, 38 00:01:36,758 --> 00:01:39,425 it'll be a fairly quick process. 39 00:01:40,851 --> 00:01:44,024 Now the link that you are seeing on your screen right now 40 00:01:44,024 --> 00:01:47,358 is a link that you can use to sign up to DigitalOcean, 41 00:01:47,358 --> 00:01:51,591 and that will give you two free months off of server rent. 42 00:01:51,591 --> 00:01:54,243 Which means you'll be able to trial out 43 00:01:54,243 --> 00:01:56,518 what you see in this section, 44 00:01:56,518 --> 00:01:58,362 and you'll be able to deploy your applications 45 00:01:58,362 --> 00:02:00,870 to DigitalOcean and give them a go. 46 00:02:00,870 --> 00:02:03,622 Two months is not a very long time, 47 00:02:03,622 --> 00:02:05,818 but it's better than nothing. 48 00:02:05,818 --> 00:02:09,471 So hopefully you find use for that. 49 00:02:09,471 --> 00:02:10,921 Okay, so what we're gonna do is 50 00:02:10,921 --> 00:02:12,634 we're going to go to that link, 51 00:02:12,634 --> 00:02:15,738 and that'll bring you to the sign up page. 52 00:02:15,738 --> 00:02:16,633 And here all you have to do 53 00:02:16,633 --> 00:02:19,626 is put in your email address, and a password. 54 00:02:19,626 --> 00:02:20,546 And once you've done that 55 00:02:20,546 --> 00:02:24,728 you'll be going straight into the DigitalOcean console. 56 00:02:24,728 --> 00:02:27,895 Let's have a look at what is in there. 57 00:02:29,756 --> 00:02:32,992 Here you see that I've got a number of droplets. 58 00:02:32,992 --> 00:02:37,188 In DigitalOcean, droplet are the servers that you own. 59 00:02:37,188 --> 00:02:40,115 As you can see I've got four servers running right now. 60 00:02:40,115 --> 00:02:42,593 For a total of $20 per month. 61 00:02:42,593 --> 00:02:44,497 As you can see it costs a bit of money, 62 00:02:44,497 --> 00:02:46,021 but it's not too much. 63 00:02:46,021 --> 00:02:48,472 It's not too expensive. 64 00:02:48,472 --> 00:02:49,930 Each of these servers can cope 65 00:02:49,930 --> 00:02:51,682 with quite a lot of load, 66 00:02:51,682 --> 00:02:54,349 because they are very fast. 67 00:02:55,242 --> 00:02:57,173 And they've got a solid state drive. 68 00:02:57,173 --> 00:02:59,194 They've got a reasonable amount of RAM. 69 00:02:59,194 --> 00:03:01,929 Certainly for a REST API. 70 00:03:01,929 --> 00:03:04,779 So they can do a lot of stuff. 71 00:03:04,779 --> 00:03:06,004 I've got these servers running 72 00:03:06,004 --> 00:03:08,373 because I like having my things running separately. 73 00:03:08,373 --> 00:03:10,488 But I could potentially be running 74 00:03:10,488 --> 00:03:11,966 the things that are running on these four servers 75 00:03:11,966 --> 00:03:15,966 on just a single server, and that would be okay. 76 00:03:16,970 --> 00:03:20,778 So whenever we want to start creating a new server 77 00:03:20,778 --> 00:03:24,945 we just go ahead and click on the create droplet button. 78 00:03:26,791 --> 00:03:29,422 And we're gonna be setting up a droplet, a new server, 79 00:03:29,422 --> 00:03:32,339 for the deployments in this course. 80 00:03:33,246 --> 00:03:36,671 What we wanna do is, first of all, choose an image. 81 00:03:36,671 --> 00:03:40,838 This is what operating system the droplet is going to run. 82 00:03:42,211 --> 00:03:46,378 In our case we're going to choose Ubuntu 16.04. 83 00:03:47,742 --> 00:03:52,181 If you see Ubuntu 16.04.2 for example then that's okay. 84 00:03:52,181 --> 00:03:55,366 Just stick with 16.04. 85 00:03:55,366 --> 00:03:59,219 And I know that there's a newer version 16.10. 86 00:03:59,219 --> 00:04:00,792 And by the time you're watching this 87 00:04:00,792 --> 00:04:02,696 you may even see 17. 88 00:04:02,696 --> 00:04:05,404 However, 16.04 89 00:04:05,404 --> 00:04:08,005 is an LTS distribution of Ubuntu. 90 00:04:08,005 --> 00:04:10,063 That means long term support. 91 00:04:10,063 --> 00:04:12,539 Which means that this distribution is going to be supported 92 00:04:12,539 --> 00:04:16,539 for a lot longer time than for example 17 might. 93 00:04:18,112 --> 00:04:20,298 So stick with Ubuntu 16.04, 94 00:04:20,298 --> 00:04:23,502 and when the time comes I'll update the course accordingly 95 00:04:23,502 --> 00:04:27,419 to use the next long term support distribution. 96 00:04:28,305 --> 00:04:31,933 So whenever you're watching this video stick to 16.04. 97 00:04:31,933 --> 00:04:34,908 For a size we're going to stick with the cheapest one 98 00:04:34,908 --> 00:04:36,530 for testing our deployments. 99 00:04:36,530 --> 00:04:37,892 This is $5 a month, 100 00:04:37,892 --> 00:04:39,978 and here you may have to give your 101 00:04:39,978 --> 00:04:42,787 debit card details or credit card details, 102 00:04:42,787 --> 00:04:46,513 or use a $10 sign up bonus 103 00:04:46,513 --> 00:04:49,096 if you use the link I provided. 104 00:04:50,104 --> 00:04:51,187 So choose the cheapest one, 105 00:04:51,187 --> 00:04:53,730 unless of course you have something else you wanna run, 106 00:04:53,730 --> 00:04:57,450 and then you maybe wanna use a more expensive one. 107 00:04:57,450 --> 00:04:59,609 Then we'll get to this section to add block storage, 108 00:04:59,609 --> 00:05:01,146 and we're just gonna ignore that. 109 00:05:01,146 --> 00:05:02,064 We don't want block storage 110 00:05:02,064 --> 00:05:06,064 because our application does not need it. 111 00:05:06,064 --> 00:05:09,230 And finally we choose a datacenter region. 112 00:05:09,230 --> 00:05:12,742 DigitalOcean is a fairly large server provider 113 00:05:12,742 --> 00:05:16,550 so it has servers available in many different places. 114 00:05:16,550 --> 00:05:18,295 The difference between each of these regions 115 00:05:18,295 --> 00:05:21,998 is how far away the region is 116 00:05:21,998 --> 00:05:23,398 from your users. 117 00:05:23,398 --> 00:05:25,768 For example, I'm in the UK. 118 00:05:25,768 --> 00:05:29,190 If all of my users, all of my REST API users, 119 00:05:29,190 --> 00:05:33,261 are in the UK as well, I may wanna go for London. 120 00:05:33,261 --> 00:05:35,527 That is because connecting to London 121 00:05:35,527 --> 00:05:38,282 will be a lot faster than connecting to New York, 122 00:05:38,282 --> 00:05:39,670 just because if you connect to New York 123 00:05:39,670 --> 00:05:41,395 you have to go through the ocean 124 00:05:41,395 --> 00:05:44,447 in the underground lines, 125 00:05:44,447 --> 00:05:46,254 and that takes a few milliseconds, 126 00:05:46,254 --> 00:05:49,991 whereas connecting to London will be a lot faster. 127 00:05:49,991 --> 00:05:53,238 The Amsterdam datacenters are particularly good. 128 00:05:53,238 --> 00:05:54,740 So you may wanna go for that, 129 00:05:54,740 --> 00:05:56,352 and that's what I normally go for. 130 00:05:56,352 --> 00:05:59,506 It's very good for European customers. 131 00:05:59,506 --> 00:06:01,194 Naturally if you are in the US 132 00:06:01,194 --> 00:06:03,127 you may wanna go for New York or San Francisco 133 00:06:03,127 --> 00:06:05,456 depending on whether you're in the east or the west. 134 00:06:05,456 --> 00:06:07,480 If you're in Canada go for Toronto. 135 00:06:07,480 --> 00:06:10,813 And so on for the other regions as well. 136 00:06:12,472 --> 00:06:15,216 Then we get to selecting additional options. 137 00:06:15,216 --> 00:06:17,493 We've got a bunch of things here. 138 00:06:17,493 --> 00:06:20,842 Private networking, which allows two of our droplets, 139 00:06:20,842 --> 00:06:23,733 which we don't have two yet, we've only got one. 140 00:06:23,733 --> 00:06:26,144 It allows two of our droplets to connect to each other 141 00:06:26,144 --> 00:06:28,281 without going through the internet. 142 00:06:28,281 --> 00:06:31,207 It means their connection goes faster, 143 00:06:31,207 --> 00:06:32,476 but we don't need that just now. 144 00:06:32,476 --> 00:06:35,949 For example, it might allow your REST API droplet 145 00:06:35,949 --> 00:06:38,411 to connect to a database droplet 146 00:06:38,411 --> 00:06:39,696 if that's what we wanted to do. 147 00:06:39,696 --> 00:06:42,369 In this section we're going to be installing the REST API 148 00:06:42,369 --> 00:06:46,484 and the database on the same droplet, so we don't need this. 149 00:06:46,484 --> 00:06:47,463 Backups. 150 00:06:47,463 --> 00:06:50,391 It allows for your droplet to keep a backup, 151 00:06:50,391 --> 00:06:52,537 and that makes it slightly more expensive. 152 00:06:52,537 --> 00:06:55,256 It adds 20% of the monthly cost. 153 00:06:55,256 --> 00:06:57,058 But of course if you wanna keep the data 154 00:06:57,058 --> 00:06:59,671 and you wanna make sure your data is not lost, 155 00:06:59,671 --> 00:07:02,075 then you may wanna check that. 156 00:07:02,075 --> 00:07:03,424 For now we're gonna leave it unchecked 157 00:07:03,424 --> 00:07:05,440 because this is just a trial 158 00:07:05,440 --> 00:07:09,155 for learning how to deploy so we don't need that in here. 159 00:07:09,155 --> 00:07:10,238 IPv6. 160 00:07:11,453 --> 00:07:14,113 Right now all droplets run with IPv4 161 00:07:14,113 --> 00:07:16,830 which is a pretty old version of the internet protocol. 162 00:07:16,830 --> 00:07:18,118 The IP. 163 00:07:18,118 --> 00:07:20,606 But IPv6, the newer version, 164 00:07:20,606 --> 00:07:23,231 is rolling out and is becoming more popular. 165 00:07:23,231 --> 00:07:25,526 And if you need that, which we don't in this section, 166 00:07:25,526 --> 00:07:26,800 then you may wanna check that. 167 00:07:26,800 --> 00:07:29,316 If you don't know what that is just leave it unchecked. 168 00:07:29,316 --> 00:07:31,184 And finally user data which is some 169 00:07:31,184 --> 00:07:33,926 DigitalOcean specific configuration perimeters. 170 00:07:33,926 --> 00:07:37,416 We're gonna leave that unchecked. 171 00:07:37,416 --> 00:07:39,178 Then we look at SSH keys 172 00:07:39,178 --> 00:07:40,777 which we know what they are now. 173 00:07:40,777 --> 00:07:43,955 You can add your SSH key if you want. 174 00:07:43,955 --> 00:07:45,003 And what that'll do is 175 00:07:45,003 --> 00:07:48,736 that won't generate a password for your account. 176 00:07:48,736 --> 00:07:52,106 Instead, you will have to connect with the computer 177 00:07:52,106 --> 00:07:54,697 that owns this SSH key. 178 00:07:54,697 --> 00:07:57,780 If you're not sure, I would leave it unchecked, 179 00:07:57,780 --> 00:08:00,215 or just don't add an SSH key. 180 00:08:00,215 --> 00:08:01,816 That will generate a password 181 00:08:01,816 --> 00:08:03,345 and you'll be able to connect to your account 182 00:08:03,345 --> 00:08:06,420 from anywhere no matter what computer you're using. 183 00:08:06,420 --> 00:08:07,806 If you check the SSH key, 184 00:08:07,806 --> 00:08:10,386 you'll only be able to connect with the computer 185 00:08:10,386 --> 00:08:12,974 that owns the SSH key. 186 00:08:12,974 --> 00:08:14,520 In my case this is my laptop. 187 00:08:14,520 --> 00:08:15,753 If I had two laptops, 188 00:08:15,753 --> 00:08:17,766 my second laptop wouldn't be able to connect, 189 00:08:17,766 --> 00:08:20,849 because it wouldn't own this SSH key. 190 00:08:21,976 --> 00:08:24,256 And finally we're gonna create. 191 00:08:24,256 --> 00:08:26,302 So we're gonna select how many droplets we want. 192 00:08:26,302 --> 00:08:28,092 In my case I'm gonna select one droplet, 193 00:08:28,092 --> 00:08:29,658 and then we're gonna choose a hostname. 194 00:08:29,658 --> 00:08:31,082 And here I would recommend something 195 00:08:31,082 --> 00:08:32,678 that makes sense to you. 196 00:08:32,678 --> 00:08:35,069 For example, you may call it 197 00:08:35,069 --> 00:08:39,311 REST API course and trial. 198 00:08:39,311 --> 00:08:41,218 Or something like that. 199 00:08:41,218 --> 00:08:43,617 Okay, finally you may add a tag if you want, 200 00:08:43,617 --> 00:08:46,867 and I'm gonna add the tag course there. 201 00:08:49,150 --> 00:08:51,983 And then let's press create. 202 00:08:51,983 --> 00:08:54,590 Now these droplets take a few seconds to create, 203 00:08:54,590 --> 00:08:56,308 but as you can see they're very quick. 204 00:08:56,308 --> 00:08:58,264 It should take less than 60 seconds 205 00:08:58,264 --> 00:09:00,248 to create your new server, 206 00:09:00,248 --> 00:09:03,331 and then it will be ready to be used. 207 00:09:04,218 --> 00:09:06,260 Okay, that's all server ready. 208 00:09:06,260 --> 00:09:09,752 Now we can go to our email address 209 00:09:09,752 --> 00:09:11,142 that is registered with this account, 210 00:09:11,142 --> 00:09:13,709 and you should receive an email 211 00:09:13,709 --> 00:09:17,342 telling you the password for the account. 212 00:09:17,342 --> 00:09:19,509 Or you can just go to more 213 00:09:20,375 --> 00:09:22,520 and press on access console. 214 00:09:22,520 --> 00:09:24,257 And what this will do 215 00:09:24,257 --> 00:09:27,840 is this will bring you to the console here. 216 00:09:30,147 --> 00:09:32,919 The login is root, 217 00:09:32,919 --> 00:09:34,710 and the password is once again 218 00:09:34,710 --> 00:09:36,690 what you've got on your email. 219 00:09:36,690 --> 00:09:38,623 So I'm going to go and check the email 220 00:09:38,623 --> 00:09:40,115 and retrieve the password from it, 221 00:09:40,115 --> 00:09:43,275 and then go and put it back in here. 222 00:09:43,275 --> 00:09:46,859 Okay, we left it up here when we put in our password 223 00:09:46,859 --> 00:09:49,010 that you should find on your email. 224 00:09:49,010 --> 00:09:50,738 And then we have to change the password. 225 00:09:50,738 --> 00:09:52,377 That's a requirement to make sure to use 226 00:09:52,377 --> 00:09:54,943 a reasonably secure password. 227 00:09:54,943 --> 00:09:57,392 And as you can see here I put the password in again, 228 00:09:57,392 --> 00:10:00,752 and then I typed in my new password which have setup. 229 00:10:00,752 --> 00:10:02,396 And after you type in your new password 230 00:10:02,396 --> 00:10:05,250 you'll be received with this screen here 231 00:10:05,250 --> 00:10:09,196 which is the Ubuntu load up screen. 232 00:10:09,196 --> 00:10:10,929 And that means once you've done that 233 00:10:10,929 --> 00:10:13,936 that you are ready to start using your server. 234 00:10:13,936 --> 00:10:15,490 We are now connected, 235 00:10:15,490 --> 00:10:18,573 and we are connected as the root user 236 00:10:19,414 --> 00:10:23,645 in the REST API course trial server. 237 00:10:23,645 --> 00:10:27,436 So this means we're the root user 238 00:10:27,436 --> 00:10:30,906 at the REST API course trial server. 239 00:10:30,906 --> 00:10:33,220 And now in this blinking cursor 240 00:10:33,220 --> 00:10:36,003 we can start typing our commands. 241 00:10:36,003 --> 00:10:37,953 This is running Ubuntu 242 00:10:37,953 --> 00:10:40,654 which is a Unix server. 243 00:10:40,654 --> 00:10:44,639 Just like Mac, CentOS, Arch, 244 00:10:44,639 --> 00:10:46,333 and many others are all Unix. 245 00:10:46,333 --> 00:10:49,767 So we're gonna be typing our commands in here. 246 00:10:49,767 --> 00:10:50,739 And we're going to be installing 247 00:10:50,739 --> 00:10:54,259 PostgreSQL, Nginx, and our application. 248 00:10:54,259 --> 00:10:56,534 We're gonna go through exactly where all those are 249 00:10:56,534 --> 00:10:58,569 in the next few videos. 250 00:10:58,569 --> 00:11:00,753 If you've not managed to get to this screen 251 00:11:00,753 --> 00:11:04,939 where you are logged in as root in your box, 252 00:11:04,939 --> 00:11:07,987 in your droplet, then please stop here. 253 00:11:09,485 --> 00:11:12,068 Do not continue without 254 00:11:12,956 --> 00:11:15,454 having your droplet setup. 255 00:11:15,454 --> 00:11:18,357 If you don't want to pay 256 00:11:18,357 --> 00:11:21,004 or to sign up to DigitalOcean at this point, 257 00:11:21,004 --> 00:11:24,424 I would recommend that you don't follow this section at all 258 00:11:24,424 --> 00:11:26,831 until you are ready to deploy to DigitalOcean. 259 00:11:26,831 --> 00:11:28,754 Just because we're gonna be going through 260 00:11:28,754 --> 00:11:32,022 a bunch of commands, and if you don't do these commands 261 00:11:32,022 --> 00:11:34,105 alongside the videos, you're just gonna forget them, 262 00:11:34,105 --> 00:11:35,905 and it's gonna be a waste of time. 263 00:11:35,905 --> 00:11:38,272 So if you don't want to deploy to DigitalOcean 264 00:11:38,272 --> 00:11:39,521 don't follow this section, 265 00:11:39,521 --> 00:11:41,997 because it doesn't make sense for you to do that. 266 00:11:41,997 --> 00:11:44,230 And you can follow this section in six months, 267 00:11:44,230 --> 00:11:47,722 twelve months time, when you want to deploy to DigitalOcean. 268 00:11:47,722 --> 00:11:48,856 If you want to. 269 00:11:48,856 --> 00:11:51,044 If you don't want to you can stick with Heroku 270 00:11:51,044 --> 00:11:53,490 for a very very long time. 271 00:11:53,490 --> 00:11:55,469 Okay, so that's everything for this video, 272 00:11:55,469 --> 00:11:57,656 and I'll see you on the very next one.