🐹 Update tutorials

01-prepare-ubuntu.md

@@ -15,18 +15,6 @@ sudo apt update
 sudo apt install git curl
 ```
 
-We download and install the `nix` package manager (source: [nixos.org](https://nixos.org/download)):
-
-```bash
-sh <(curl -L https://nixos.org/nix/install) --daemon
-```
-
-After this operation, log out and log back in to use `nix`.
-
-```bash
-reboot # overkill, but sure.
-```
-
 Clone the repository with the source code of the cloud services:
 
 ```bash
@@ -42,4 +30,12 @@ curl -Lo .git/hooks/commit-msg https://gerrit.hackerspace.pl/tools/hooks/commit-
 chmod +x .git/hooks/commit-msg
 ```
 
+We download and install the `nix` package manager (source: [nixos.org](https://nixos.org/download)):
+
+```bash
+sh <(curl -L https://nixos.org/nix/install) --daemon
+```
+
+After this operation, log out and log back in to use `nix`.
+
 Next step: [Build environment](02-build-environment.md)

02-build-environment.md

@@ -12,24 +12,20 @@ Working nix. You can install nix with command:
 sh <(curl -L https://nixos.org/nix/install) --daemon
 ```
 
-## Steps
-
 We create the environment in which we will build services. To do this, we create the environment based on the definitions in the `shell.nix` file:
 
-
 ```bash
 nix-shell
 ```
 
-
 We now use the `bazel` tool to build and run the necessary services, including `prodaccess` and `kubectl`:
 
-
 ```bash
 bazel build //tools:install
 bazel run //tools:install
 ```
 
+## Steps
 
 Now we can request to grant us access to the hscloud cluster through the [prodaccess](https://pkg.go.dev/code.hackerspace.pl/hscloud/cluster/prodaccess#section-readme) tool. In place of `$hs_username` insert the username in SSO hackerspace:
 

03-create-service.md

@@ -2,6 +2,23 @@
 
 In this chapter, I will show you how to create a service that will be publicly available on the Internet.
 
+## Requirements
+
+Working nix. You can install nix with command:
+
+```bash
+sh <(curl -L https://nixos.org/nix/install) --daemon
+```
+
+and start it with:
+
+```bash
+nix-shell
+bazel build //tools:install
+bazel run //tools:install
+```
+
+
 ## Creating a copy of ldapweb
 
 We start by enabling the nix-shell environment:

04-build-web-app.md

@@ -4,6 +4,21 @@ In this chapter, we will build our own web service using the Flask framework, do
 
 ## Requirements
 
+Working nix. You can install nix with command:
+
+```bash
+sh <(curl -L https://nixos.org/nix/install) --daemon
+```
+
+and start it with:
+
+```bash
+nix-shell
+bazel build //tools:install
+bazel run //tools:install
+```
+
+
 You will require `docker` in this example. Install it from your standard shell.
 
 ```bash

05-deploy-web-app.md

@@ -4,6 +4,22 @@ In this chapter, we will deploy our registered docker image on hscloud as a simp
 
 ## Requirements
 
+Working nix. You can install nix with command:
+
+```bash
+sh <(curl -L https://nixos.org/nix/install) --daemon
+```
+
+and start it with:
+
+```bash
+nix-shell
+bazel build //tools:install
+bazel run //tools:install
+```
+
+inside `hscloud` repo.
+
 We need a registered docker image in the registry. If you don't have one, you can create it by following the [Building your own Flask web service](04-build-web-app.md) chapter. We also need a running `prodaccess` authorization (details: [Building environment](02-build-environment.md)).
 
 ## Steps