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‫This is me walking through the assignment for the secrets compose file that we're going to put

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‫in our swarm stack.

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‫This file was left over from our previous assignment when we were dealing with Drupal.

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‫That was under a compose assignment 2 directory.

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‫Now I'm up at the top here, and I know we covered this previously but I didn't mention it in the slide,

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‫is that this version needs to be 3.1.

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‫Because a stack and swarm will not accept any secrets in a file unless it's at minimum 3.1

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‫compose format.

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‫The worst case, though, is if I left it at the 2 and I forgot, when I try to deploy my stack, it'll

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‫just say, 'Sorry, cannot use compose version 2 file.' So, it'll just be pretty obvious that you need to change

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‫it.

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‫All right. The next one was, I needed to change this image. We're not going to build a custom image

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‫on our stack because, remember, swarm doesn't build.

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‫At least not in the current version.

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‫We're going to...um...go back to the official Drupal, 8.2, because in production, we should always pin our versions.

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‫I'm going to just get rid of this build here. Technically, in a stack,

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‫I can leave the build command here, but it'll just ignore it.

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‫I'll actually just tell us, 'Hey. Don't need this build.

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‫I'm not going to use the build. I'm going to just pull down the image.

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‫Thank you.'

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‫We could just leave it, but I'm going to, for this example, not be distracted by that thing and just

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‫delete that line. Then I'm going to go down here to the environment, and we need to change this because

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‫we're no longer going to use an actual password. We're going to use the file.

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‫Then this is so this postges is just like the previous lectures where we talked about how the official

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‫images now have this option for the file to support secrets.

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‫Now I just have to give it the location of the file instead of the actual secret itself.

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‫So, run secrets and we're going to call this one psql pw.

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‫And then I need to actually specify the secret.

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‫So, down here, under secrets, I want to call it psql pw. Then it's going to be external, which means

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‫that we're creating it on our own from the command line and that it's not the stack's responsibility to

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‫create it.

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‫This is actually just a boolean value.

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‫So, I specify that as true.

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‫Oh, and then I almost forgot. I go up here,

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‫I've got to add the secrets. I have to list it.

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‫All right.

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‫That looks good to me.

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‫We're going to copy this over to the server on node1 of our swarm, and then we'll give the stack

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‫a shot.

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‫OK.

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‫I have copied over the compose file from my local machine, so we should be able to do a docker

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‫stack deploy now, -c docker compose, and I'm going to call it drupal.

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‫And that's what happens when you forget to create the secret first.

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‫So, just like the instructions said, I'm going to create the secret, and I'm going to just put some random

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‫characters in here.

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‫docker secret create psql pw, pass in the value.

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‫OK.

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‫Now, I should be able to deploy the stack. There we go.

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‫So, docker stack ps drupal.

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‫I've got my postgres and my drupal.

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‫So I should be able to bring up a browser and go to node1 8080, and there we go.

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‫I can install a Drupal.

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‫Let's actually test to see if that password worked.

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‫This is not actually required, but I just want to test it anyway.

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‫postgres...postgres...postgres...

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‫Database password...

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‫postgres...there it goes! It worked!

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‫All right.

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‫And we're done.