1 00:00:00,000 --> 00:00:09,400 Hi, Let us understand about Named template. As we discussed earlier 2 00:00:09,400 --> 00:00:14,833 We used to keep the templates as a part of the templates folder and most of the files within the templates 3 00:00:14,833 --> 00:00:18,033 folder are treated as kubernetes manifest. 4 00:00:18,033 --> 00:00:23,199 And that is one exception where I can have nodes.txt and I can 5 00:00:23,200 --> 00:00:27,600 have other files as well which is going to start with underscore. 6 00:00:27,600 --> 00:00:33,466 If you remember earlier, when we are creating the charts, by default it was creating some sample files, 7 00:00:33,466 --> 00:00:40,466 it had underscore and I can have multiple templates in the same file and I can give a name to it and 8 00:00:40,466 --> 00:00:45,799 use it elsewhere as well that's what we are going to learn in this particular lecture. 9 00:00:45,800 --> 00:00:53,100 where I can define a template and give a name to it and include this particular template in other locations as well. 10 00:00:53,100 --> 00:00:58,933 This will help us to leverage the reusability. Let us understand by doing some demo. 11 00:00:58,933 --> 00:01:04,498 Let me open the template file. 12 00:01:04,500 --> 00:01:11,433 Here, I'm going to delete all the labels and include that as a predefined template and I can have the 13 00:01:11,433 --> 00:01:16,099 templates as a separate file with underscore as a prefix. 14 00:01:16,100 --> 00:01:20,100 or I can include it in the same file as well. To start with 15 00:01:20,100 --> 00:01:22,400 I'm going to include in the same file. Here 16 00:01:22,400 --> 00:01:27,566 I'm going to have a template where I'm going to define the name of the template as 17 00:01:27,566 --> 00:01:32,699 mychart.system labels and it's supports the syntax of using the namespaces as well. 18 00:01:32,700 --> 00:01:39,266 And it's going to have this particular syntax. And what needs to get included I can include over here. 19 00:01:39,266 --> 00:01:45,099 This works very similar to the include or import that we use in the other programming languages. 20 00:01:45,100 --> 00:01:47,200 Now, let me include this particular template. 21 00:01:47,200 --> 00:01:52,966 that is mychart.system labels within the actual template. Here 22 00:01:52,966 --> 00:02:04,732 I'm going to include. Now, let me do the dry run. So what happened 23 00:02:04,733 --> 00:02:13,633 It automatically included the labels and it's not listing the actual template that we had defined within 24 00:02:13,633 --> 00:02:21,399 the manifest file. If you observe one thing very carefully, let me get into the configuration file. 25 00:02:21,400 --> 00:02:25,566 where we have provided this particular template and 26 00:02:25,566 --> 00:02:28,532 This is having proper alignment and wherever 27 00:02:28,533 --> 00:02:33,566 I'm going to include this particular alignment will not be considered when I'm going to include using 28 00:02:33,566 --> 00:02:38,699 the keyword template. There is another option using include that we will be seeing it later. 29 00:02:38,700 --> 00:02:43,000 And this particular include is not going to consider this particular space. 30 00:02:43,000 --> 00:02:49,200 I can go ahead and delete them as well. Let me delete them. 31 00:02:49,200 --> 00:02:57,666 And do the dry run. This is also producing the same result. So within the template 32 00:02:57,666 --> 00:03:04,032 The important thing to remember is the space or indentation within the inner template and not in the place 33 00:03:04,033 --> 00:03:08,599 where we are going to include the template using that template keyword. 34 00:03:08,600 --> 00:03:14,500 The reason why I am concentrating on the indentation, while doing the template programming for the yaml file 35 00:03:14,500 --> 00:03:19,500 the indentation is where most of the mistakes used to happen. 36 00:03:19,500 --> 00:03:25,033 So in a quick summary we have seen how to create a template and include that within another template. 37 00:03:25,033 --> 00:03:29,166 The next section we are going to see how to have this particular template 38 00:03:29,166 --> 00:03:33,032 In a separate file and include within another template file.