feat: add multi-session support for tmux in Coder UI

Author: 35C4n0r

registry/anomaly/modules/tmux/README.md

@@ -23,20 +23,30 @@ up a default or custom tmux configuration with session save/restore capabilities
   - `tmux-plugins/tmux-continuum`
 - Supports custom tmux configuration
 - Enables automatic session save
-- To restore in case of server restart `prefix + ctrl+r`
 - Configurable save interval
+- **Supports multiple named tmux sessions, each as a separate app in the Coder UI**
 
 ## Usage
 
 ```tf
 module "tmux" {
   source        = "path/to/this/module"
   agent_id      = coder_agent.example.id
-  tmux_config = "" # Optional: custom tmux.conf content
-  save_interval = 1  # Optional: save interval in minutes
+  tmux_config   = ""                        # Optional: custom tmux.conf content
+  save_interval = 1                         # Optional: save interval in minutes
+  sessions      = ["default", "dev", "ops"] # Optional: list of tmux sessions
+  order         = 1                         # Optional: UI order
+  group         = "Terminal"                # Optional: UI group
+  icon          = "/icon/tmux.svg"          # Optional: app icon
 }
 ```
 
+## Multi-Session Support
+
+This module can provision multiple tmux sessions, each as a separate app in the Coder UI. Use the `sessions` variable to specify a list of session names. For each session, a `coder_app` is created, allowing you to launch or attach to that session directly from the UI.
+
+- **sessions**: List of tmux session names (default: `["default"]`).
+
 ## How It Works
 
 - **tmux Installation:**
@@ -58,19 +68,24 @@ module "tmux" {
 
 ```tf
 module "tmux" {
-  source        = "./registry/anomaly/modules/tmux"
-  agent_id      = var.agent_id
-  tmux_config   = <<-EOT
+  source      = "./registry/anomaly/modules/tmux"
+  agent_id    = var.agent_id
+  sessions    = ["default", "dev", "anomaly"]
+  tmux_config = <<-EOT
     set -g mouse on
     set -g history-limit 10000
   EOT
+  group       = "Terminal"
+  order       = 2
 }
 ```
 
 > [!NOTE]
+>
 > - If you provide a custom `tmux_config`, it will completely replace the default configuration. Ensure you include plugin
-  and TPM initialization lines if you want plugin support.
+>   and TPM initialization lines if you want plugin support and session persistence.
 > - The script will attempt to install dependencies using `sudo` where required.
 > - If `git` is not installed, TPM installation will fail.
-> - To restore in case of server restart `prefix + ctrl+r`
-> - If you are using custom config, you'll be responsible for setting up persistence
+> - If you are using custom config, you'll be responsible for setting up persistence and plugins.
+> - The `order`, `group`, and `icon` variables allow you to customize how tmux apps appear in the Coder UI.
+> - In case of session restart or shh reconnection, the tmux session will be automatically restored :)

registry/anomaly/modules/tmux/main.tf

@@ -45,9 +45,9 @@ variable "icon" {
 }
 
 variable "sessions" {
-  type = list(string)
+  type        = list(string)
   description = "List of tmux sessions to create or start."
-  default = ["default"]
+  default     = ["default"]
 }
 
 resource "coder_script" "tmux" {