feat: add healthcheck parameters to coder_app

docs/resources/app.md

@@ -26,11 +26,11 @@ EOF
 }
 
 resource "coder_app" "code-server" {
-  agent_id          = coder_agent.dev.id
-  name              = "VS Code"
-  icon              = data.coder_workspace.me.access_url + "/icons/vscode.svg"
-  url               = "http://localhost:13337"
-  relative_path     = true
+  agent_id      = coder_agent.dev.id
+  name          = "VS Code"
+  icon          = data.coder_workspace.me.access_url + "/icons/vscode.svg"
+  url           = "http://localhost:13337"
+  relative_path = true
 }
 
 resource "coder_app" "vim" {
@@ -58,6 +58,10 @@ resource "coder_app" "intellij" {
 ### Optional
 
 - `command` (String) A command to run in a terminal opening this app. In the web, this will open in a new tab. In the CLI, this will SSH and execute the command. Either "command" or "url" may be specified, but not both.
+- `healthcheck_enabled` (Boolean) Run a HTTP request periodically to determine the application readiness.
+- `healthcheck_interval` (Number) Duration in seconds to wait between healthcheck requests.
+- `healthcheck_threshold` (Number) Number of consecutive heathcheck failures before returning an unhealthy status.
+- `healthcheck_url` (String) HTTP address used determine the application readiness.
 - `icon` (String) A URL to an icon that will display in the dashboard. View built-in icons here: https://github.com/coder/coder/tree/main/site/static/icons. Use a built-in icon with `data.coder_workspace.me.access_url + "/icons/<path>"`.
 - `name` (String) A display name to identify the app.
 - `relative_path` (Boolean) Specifies whether the URL will be accessed via a relative path or wildcard. Use if wildcard routing is unavailable.

docs/resources/metadata.md

@@ -21,25 +21,25 @@ resource "kubernetes_pod" "dev" {
 }
 
 resource "tls_private_key" "example_key_pair" {
-  algorithm = "ECDSA"
+  algorithm   = "ECDSA"
   ecdsa_curve = "P256"
 }
 
 resource "coder_metadata" "pod_info" {
-  count = data.coder_workspace.me.start_count
+  count       = data.coder_workspace.me.start_count
   resource_id = kubernetes_pod.dev[0].id
   item {
-    key = "description"
+    key   = "description"
     value = "This description will show up in the Coder dashboard."
   }
   item {
-    key = "pod_uid"
+    key   = "pod_uid"
     value = kubernetes_pod.dev[0].uid
   }
   item {
-    key = "public_key"
+    key   = "public_key"
     value = tls_private_key.example_key_pair.public_key_openssh
-     # The value of this item will be hidden from view by default
+    # The value of this item will be hidden from view by default
     sensitive = true
   }
 }

examples/resources/coder_app/resource.tf

@@ -11,11 +11,11 @@ EOF
 }
 
 resource "coder_app" "code-server" {
-  agent_id          = coder_agent.dev.id
-  name              = "VS Code"
-  icon              = data.coder_workspace.me.access_url + "/icons/vscode.svg"
-  url               = "http://localhost:13337"
-  relative_path     = true
+  agent_id      = coder_agent.dev.id
+  name          = "VS Code"
+  icon          = data.coder_workspace.me.access_url + "/icons/vscode.svg"
+  url           = "http://localhost:13337"
+  relative_path = true
 }
 
 resource "coder_app" "vim" {

examples/resources/coder_metadata/resource.tf

@@ -6,25 +6,25 @@ resource "kubernetes_pod" "dev" {
 }
 
 resource "tls_private_key" "example_key_pair" {
-  algorithm = "ECDSA"
+  algorithm   = "ECDSA"
   ecdsa_curve = "P256"
 }
 
 resource "coder_metadata" "pod_info" {
-  count = data.coder_workspace.me.start_count
+  count       = data.coder_workspace.me.start_count
   resource_id = kubernetes_pod.dev[0].id
   item {
-    key = "description"
+    key   = "description"
     value = "This description will show up in the Coder dashboard."
   }
   item {
-    key = "pod_uid"
+    key   = "pod_uid"
     value = kubernetes_pod.dev[0].uid
   }
   item {
-    key = "public_key"
+    key   = "public_key"
     value = tls_private_key.example_key_pair.public_key_openssh
-     # The value of this item will be hidden from view by default
+    # The value of this item will be hidden from view by default
     sensitive = true
   }
 }

internal/provider/provider.go

@@ -373,6 +373,34 @@ func New() *schema.Provider {
 						Optional:      true,
 						ConflictsWith: []string{"command"},
 					},
+					"healthcheck_enabled": {
+						Type:          schema.TypeBool,
+						Description:   "Run a HTTP request periodically to determine the application readiness.",
+						ForceNew:      true,
+						Optional:      true,
+						ConflictsWith: []string{"command"},
+					},
+					"healthcheck_url": {
+						Type:          schema.TypeString,
+						Description:   "HTTP address used determine the application readiness.",
+						ForceNew:      true,
+						Optional:      true,
+						ConflictsWith: []string{"command"},
+					},
+					"healthcheck_interval": {
+						Type:          schema.TypeInt,
+						Description:   "Duration in seconds to wait between healthcheck requests.",
+						ForceNew:      true,
+						Optional:      true,
+						ConflictsWith: []string{"command"},
+					},
+					"healthcheck_threshold": {
+						Type:          schema.TypeInt,
+						Description:   "Number of consecutive heathcheck failures before returning an unhealthy status.",
+						ForceNew:      true,
+						Optional:      true,
+						ConflictsWith: []string{"command"},
+					},
 				},
 			},
 			"coder_metadata": {