feat(cryptpad): Refactor installer for dynamic configuration

This commit refactors the CryptPad Kubernetes installer to be more dynamic and configurable structure.

Key changes include:
-   **Dynamic Configuration**: The installer now generates its configuration based on parameters passed from the `.vsh` script, with sensible defaults for any unspecifie
d values.
-   **Templated `config.js`**: Introduced a new `config.js` template to allow for greater flexibility and easier maintenance of the CryptPad configuration.
-   **Improved Code Structure**: The source code has been updated to be more modular and maintainable.
-   **Updated Documentation**: The `README.md` has been updated to include instructions on how to run the installer and customize the installation.

Co-authored-by: Mahmoud-Emad <mahmmoud.hassanein@gmail.com>

examples/installers/k8s/cryptpad.vsh

@@ -11,13 +11,16 @@ mut installer := cryptpad.get(
 	create: true
 )!
 
-// 2. Install CryptPad.
+// 2. Configure the installer (all settings are optional with sensible defaults)
+installer.hostname = 'mycryptpad'
+installer.namespace = 'cryptpad'
+
+// 3. Install CryptPad.
 //    This will generate the necessary Kubernetes YAML files and apply them to your cluster.
-// installer.install()!
-// cryptpad.delete()!
+installer.install()!
 
 // println('CryptPad installation started.')
 // println('You can access it at https://${installer.hostname}.gent01.grid.tf')
 
-// 3. To destroy the deployment, you can run the following:
-installer.destroy()!
+// 4. To destroy the deployment, you can run the following:
+// installer.destroy()!

lib/installers/k8s/cryptpad/README.md

@@ -31,6 +31,16 @@ installer.install()!
 
 ## Usage
 
+### Running the Installer
+
+You can run the installer directly from the command line using the example script:
+
+```bash
+./examples/installers/k8s/cryptpad.vsh
+```
+
+This will install CryptPad with the default settings. To customize the installation, you can edit the `cryptpad.vsh` file.
+
 ### Create an Instance
 
 ```v

lib/installers/k8s/cryptpad/cryptpad_actions.v

@@ -60,7 +60,7 @@ fn install() ! {
 
 	// 4. Apply the YAML files using kubernetes client
 	console.print_info('Applying Gateway YAML file to the cluster...')
-	res1 := k8s.apply_yaml('/tmp/tfgw-cryptpad.yaml')!
+	res1 := k8s.apply_yaml(installer.tfgw_cryptpad_path)!
 	if !res1.success {
 		return error('Failed to apply tfgw-cryptpad.yaml: ${res1.stderr}')
 	}
@@ -72,7 +72,7 @@ fn install() ! {
 
 	// 6. Apply Cryptpad YAML
 	console.print_info('Applying Cryptpad YAML file to the cluster...')
-	res2 := k8s.apply_yaml('/tmp/cryptpad.yaml')!
+	res2 := k8s.apply_yaml(installer.cryptpad_path)!
 	if !res2.success {
 		return error('Failed to apply cryptpad.yaml: ${res2.stderr}')
 	}

lib/installers/k8s/cryptpad/cryptpad_model.v

@@ -15,6 +15,7 @@ pub mut:
 	hostname  string // The CryptPad hostname
 	backends  string // The backends for the TFGW
 	namespace string // The namespace for the CryptPad deployment
+	config_js string // Generated config.js content
 }
 
 @[heap]
@@ -23,8 +24,9 @@ pub mut:
 	name               string = 'cryptpad'
 	hostname           string
 	namespace          string
-	cryptpad_path      string = '/tmp/cryptpad.yaml'
-	tfgw_cryptpad_path string = '/tmp/tfgw-cryptpad.yaml'
+	cryptpad_path      string = '/tmp/cryptpad/cryptpad.yaml'
+	tfgw_cryptpad_path string = '/tmp/cryptpad/tfgw-cryptpad.yaml'
+	config_js_path     string = '/tmp/cryptpad/config.js'
 	kube_client        kubernetes.KubeClient @[skip]
 }
 
@@ -57,20 +59,40 @@ fn configure() ! {
 		backends_str_builder.writeln('    - "http://[${ip}]:80"')
 	}
 
-	config_values := ConfigValues{
+	// Create config_values for template generation
+	mut config_values := ConfigValues{
 		hostname:  installer.hostname
 		backends:  backends_str_builder.str()
 		namespace: installer.namespace
+		config_js: ''
 	}
 
-	console.print_info('Generating YAML files from templates...')
-	temp := $tmpl('./templates/tfgw-cryptpad.yaml')
-	mut temp_path := pathlib.get_file(path: installer.tfgw_cryptpad_path, create: true)!
-	temp_path.write(temp)!
+	// Generate config.js
+	config_js_raw := $tmpl('./templates/config.js')
 
-	temp2 := $tmpl('./templates/cryptpad.yaml')
-	mut temp_path2 := pathlib.get_file(path: installer.cryptpad_path, create: true)!
-	temp_path2.write(temp2)!
+	// Indent the configs for proper YAML formatting (4 spaces for ConfigMap data)
+	config_js_lines := config_js_raw.split('\n')
+	mut config_js_indented := strings.new_builder(config_js_raw.len + 100)
+	for line in config_js_lines {
+		if line.len > 0 {
+			config_js_indented.writeln('    ${line}')
+		}
+	}
+
+	// Update config_values with the generated and indented configs
+	config_values.config_js = config_js_indented.str()
+
+	// Ensure the output directory exists
+	_ := pathlib.get_dir(path: '/tmp/cryptpad', create: true)!
+
+	console.print_info('Generating YAML files from templates...')
+	tfgw_yaml := $tmpl('./templates/tfgw-cryptpad.yaml')
+	mut tfgw_path := pathlib.get_file(path: installer.tfgw_cryptpad_path, create: true)!
+	tfgw_path.write(tfgw_yaml)!
+
+	cryptpad_yaml := $tmpl('./templates/cryptpad.yaml')
+	mut cryptpad_path := pathlib.get_file(path: installer.cryptpad_path, create: true)!
+	cryptpad_path.write(cryptpad_yaml)!
 
 	console.print_info('YAML files generated successfully.')
 }

lib/installers/k8s/cryptpad/templates/config.js

@@ -0,0 +1,16 @@
+module.exports = {
+    httpUnsafeOrigin: 'https://@{config_values.hostname}.gent01.grid.tf',
+    httpSafeOrigin: 'https://@{config_values.hostname}sb.gent01.grid.tf',
+    httpAddress: '0.0.0.0',
+    httpPort: 80,
+
+    websocketPort: 3003,
+    websocketPath: '/cryptpad_websocket',
+
+    blockPath: './block',
+    blobPath: './blob',
+    dataPath: './data',
+    filePath: './datastore',
+    logToStdout: true,
+    logLevel: 'info',
+};

lib/installers/k8s/cryptpad/templates/cryptpad.yaml

@@ -10,22 +10,7 @@ metadata:
   namespace: @{config_values.namespace}
 data:
   config.js: |
-    module.exports = {
-      httpUnsafeOrigin: 'https://@{config_values.hostname}.gent01.grid.tf',
-      httpSafeOrigin:   'https://@{config_values.hostname}sb.gent01.grid.tf',
-      httpAddress: '0.0.0.0',
-      httpPort: 80,
-
-      websocketPort: 3003,
-      websocketPath: '/cryptpad_websocket',
-
-      blockPath: './block',
-      blobPath: './blob',
-      dataPath: './data',
-      filePath: './datastore',
-      logToStdout: true,
-      logLevel: 'info',
-    };
+@{config_values.config_js}
 ---
 apiVersion: apps/v1
 kind: Deployment