Fix: retrieve agents from the template

- template is more reliable than a workspace build job (which can be one that stops)
- resolves #67

Author: fioan89

CHANGELOG.md

@@ -9,6 +9,7 @@
 
 ### Changed
 - workspace panel is now updated every 5 seconds
+- combinations of workspace names and agent names are now listed even when a workspace is down 
 - minimum supported Gateway build is now 222.3739.40
 
 ### Fixed

src/main/kotlin/com/coder/gateway/sdk/CoderRestClientService.kt

@@ -101,13 +101,13 @@ class CoderRestClientService {
     }
 
     /**
-     * Retrieves the workspace agents. A workspace is a collection of objects like, VMs, containers, cloud DBs, etc...
-     * Agents run on compute hosts like VMs or containers.
+     * Retrieves the workspace agents a template declares.
+     * A workspace is a collection of objects like, VMs, containers, cloud DBs, etc...Agents run on compute hosts like VMs or containers.
      *
      * @throws WorkspaceResourcesResponseException if workspace resources could not be retrieved.
      */
-    fun workspaceAgents(workspace: Workspace): List<WorkspaceAgent> {
-        val workspaceResourcesResponse = retroRestClient.workspaceResourceByBuild(workspace.latestBuild.id).execute()
+    fun workspaceAgentsByTemplate(workspace: Workspace): List<WorkspaceAgent> {
+        val workspaceResourcesResponse = retroRestClient.templateVersionResources(workspace.latestBuild.templateVersionID).execute()
         if (!workspaceResourcesResponse.isSuccessful) {
             throw WorkspaceResourcesResponseException("Could not retrieve agents for ${workspace.name} workspace :${workspaceResourcesResponse.code()}, reason: ${workspaceResourcesResponse.message()}")
         }

src/main/kotlin/com/coder/gateway/sdk/v2/CoderV2RestFacade.kt

@@ -31,8 +31,8 @@ interface CoderV2RestFacade {
     @GET("api/v2/buildinfo")
     fun buildInfo(): Call<BuildInfo>
 
-    @GET("api/v2/workspacebuilds/{buildID}/resources")
-    fun workspaceResourceByBuild(@Path("buildID") build: UUID): Call<List<WorkspaceResource>>
+    @GET("api/v2/templateversions/{templateID}/resources")
+    fun templateVersionResources(@Path("templateID") templateID: UUID): Call<List<WorkspaceResource>>
 
     /**
      * Queues a new build to occur for a workspace.

src/main/kotlin/com/coder/gateway/views/steps/CoderWorkspacesStepView.kt

@@ -332,7 +332,7 @@ class CoderWorkspacesStepView(val enableNextButtonCallback: (Boolean) -> Unit) :
 
     private fun Workspace.agentModels(): List<WorkspaceAgentModel> {
         return try {
-            val agents = coderClient.workspaceAgents(this)
+            val agents = coderClient.workspaceAgentsByTemplate(this)
             when (agents.size) {
                 0 -> {
                     listOf(