1 00:00:02,320 --> 00:00:04,920 Now for working with images and containers, 2 00:00:04,920 --> 00:00:06,910 we got a couple of core commands 3 00:00:06,910 --> 00:00:08,880 which you should keep in mind. 4 00:00:08,880 --> 00:00:10,910 Of course there is docker build, 5 00:00:10,910 --> 00:00:13,780 and docker build can be used to build an image 6 00:00:13,780 --> 00:00:15,720 based on a Dockerfile. 7 00:00:15,720 --> 00:00:18,140 We specify a Build Context, 8 00:00:18,140 --> 00:00:20,060 so the path to the folder 9 00:00:20,060 --> 00:00:21,860 which contains the Dockerfile 10 00:00:21,860 --> 00:00:23,600 and the folder in which 11 00:00:23,600 --> 00:00:25,160 this image should be built 12 00:00:25,160 --> 00:00:27,380 and we can also give our image a name 13 00:00:27,380 --> 00:00:29,080 and a tag to ensure 14 00:00:29,080 --> 00:00:31,500 that we can easily identify and use it 15 00:00:31,500 --> 00:00:34,128 to make it unique and with the tag system, 16 00:00:34,128 --> 00:00:36,520 we can also version our image. 17 00:00:36,520 --> 00:00:40,340 And we can have one image category so to say 18 00:00:40,340 --> 00:00:44,050 and then have different sub versions of that same image 19 00:00:44,050 --> 00:00:45,430 in that category. 20 00:00:45,430 --> 00:00:47,360 Like for the official node image, 21 00:00:47,360 --> 00:00:49,970 where we have the 12 and 14 tag 22 00:00:49,970 --> 00:00:52,530 to draw up different versions of Node JS 23 00:00:52,530 --> 00:00:54,220 If we use one at the same image 24 00:00:54,220 --> 00:00:55,610 with a different tag. 25 00:00:55,610 --> 00:00:57,570 That's the idea here. 26 00:00:57,570 --> 00:01:00,070 We then can run an image as a container 27 00:01:00,070 --> 00:01:02,380 with the Docker run command, 28 00:01:02,380 --> 00:01:04,670 there we could give this container a name, 29 00:01:04,670 --> 00:01:06,250 with dash dash name, 30 00:01:06,250 --> 00:01:07,850 we can auto remove it 31 00:01:07,850 --> 00:01:10,700 when it's stopped with dash dash RM, 32 00:01:10,700 --> 00:01:13,860 and we can run it in detached mode with dash D. 33 00:01:13,860 --> 00:01:16,090 Of course, there are more options we can set 34 00:01:16,090 --> 00:01:18,070 which you also saw throughout this course. 35 00:01:18,070 --> 00:01:19,970 But these are some of the most important 36 00:01:19,970 --> 00:01:21,910 and commonly used ones. 37 00:01:21,910 --> 00:01:23,250 When we run a container, 38 00:01:23,250 --> 00:01:26,460 we also need to provide the name and tag of an image 39 00:01:26,460 --> 00:01:28,480 on which this container should be based 40 00:01:28,480 --> 00:01:32,283 because the container always needs to be based on an image. 41 00:01:33,200 --> 00:01:37,230 We then also can share images with Docker push 42 00:01:37,230 --> 00:01:38,990 and Docker pull. 43 00:01:38,990 --> 00:01:40,980 And there we just have to keep in mind 44 00:01:40,980 --> 00:01:43,810 that the image name, now needs to be the name 45 00:01:43,810 --> 00:01:46,610 of the repository on DockerHub. 46 00:01:46,610 --> 00:01:50,070 You can also use our repository standard DockerHub. 47 00:01:50,070 --> 00:01:50,980 In that case, 48 00:01:50,980 --> 00:01:53,390 the image name would be the full URL 49 00:01:53,390 --> 00:01:56,470 to that repository on that other registry. 50 00:01:56,470 --> 00:01:57,650 But with DockerHub 51 00:01:57,650 --> 00:01:59,070 it's enough if your image name 52 00:01:59,070 --> 00:02:01,000 is your account name slash 53 00:02:01,000 --> 00:02:01,833 and then your image name 54 00:02:01,833 --> 00:02:05,830 and you need to label your images such locally 55 00:02:05,830 --> 00:02:07,280 on your local machine 56 00:02:07,280 --> 00:02:09,060 so that you can then push them. 57 00:02:09,060 --> 00:02:10,850 Of course that's also something we saw 58 00:02:10,850 --> 00:02:12,603 in detail throughout this course.