docs: add health checks to docs & examples (#4223)

examples/templates/aws-ecs-container/main.tf

@@ -110,4 +110,10 @@ resource "coder_app" "code-server" {
   icon          = "/icon/code.svg"
   url           = "http://localhost:13337?folder=/home/coder"
   relative_path = true
+
+  healthcheck {
+    url       = "http://localhost:1337/healthz"
+    interval  = 3
+    threshold = 10
+  }
 }

examples/templates/aws-linux/main.tf

@@ -90,6 +90,12 @@ resource "coder_app" "code-server" {
   name     = "code-server"
   url      = "http://localhost:13337/?folder=/home/coder"
   icon     = "/icon/code.svg"
+
+  healthcheck {
+    url       = "http://localhost:1337/healthz"
+    interval  = 3
+    threshold = 10
+  }
 }
 
 locals {

examples/templates/bare/main.tf

@@ -47,4 +47,10 @@ resource "coder_app" "fake-app" {
   icon     = "/icon/code.svg"
   agent_id = "fake-compute"
   url      = "http://localhost:8080"
+
+  healthcheck {
+    url       = "http://localhost:1337/healthz"
+    interval  = 3
+    threshold = 10
+  }
 }

examples/templates/docker-code-server/main.tf

@@ -41,6 +41,12 @@ resource "coder_app" "code-server" {
   agent_id = coder_agent.main.id
   url      = "http://localhost:8080/?folder=/home/coder"
   icon     = "/icon/code.svg"
+
+  healthcheck {
+    url       = "http://localhost:8080/healthz"
+    interval  = 3
+    threshold = 10
+  }
 }
 
 resource "docker_volume" "home_volume" {

examples/templates/docker-image-builds/main.tf

@@ -38,6 +38,13 @@ resource "coder_app" "code-server" {
   name     = "code-server"
   url      = "http://localhost:13337/?folder=/home/coder"
   icon     = "/icon/code.svg"
+
+  healthcheck {
+    url       = "http://localhost:1337/healthz"
+    interval  = 3
+    threshold = 10
+  }
+
 }
 
 variable "docker_image" {

examples/templates/gcp-linux/main.tf

@@ -65,6 +65,12 @@ resource "coder_app" "code-server" {
   icon          = "/icon/code.svg"
   url           = "http://localhost:13337?folder=/home/coder"
   relative_path = true
+
+  healthcheck {
+    url       = "http://localhost:1337/healthz"
+    interval  = 3
+    threshold = 10
+  }
 }
 
 resource "google_compute_instance" "dev" {

examples/templates/gcp-vm-container/main.tf

@@ -55,6 +55,12 @@ resource "coder_app" "code-server" {
   icon          = "/icon/code.svg"
   url           = "http://localhost:13337?folder=/home/coder"
   relative_path = true
+
+  healthcheck {
+    url       = "http://localhost:1337/healthz"
+    interval  = 3
+    threshold = 10
+  }
 }
 
 module "gce-container" {

examples/templates/kubernetes/main.tf

@@ -76,6 +76,12 @@ resource "coder_app" "code-server" {
   icon          = "/icon/code.svg"
   url           = "http://localhost:13337?folder=/home/coder"
   relative_path = true
+
+  healthcheck {
+    url       = "http://localhost:1337/healthz"
+    interval  = 3
+    threshold = 10
+  }
 }
 
 resource "kubernetes_persistent_volume_claim" "home" {