Fix guacrest docker compose healthchecks (#2001)

* Fix guacrest healthcheck in Docker Compose files

- The health check was trying to use the HEAD method,
  but guacrest's /healthz endpoint only supports GET.
  So we just switch it to use HEAD.

Signed-off-by: Narsimham Chelluri (Narsa) <narsa@kusari.dev>

* Fix typo in Makefile comment

Signed-off-by: Narsimham Chelluri (Narsa) <narsa@kusari.dev>

---------

Signed-off-by: Narsimham Chelluri (Narsa) <narsa@kusari.dev>

Makefile

@@ -152,7 +152,7 @@ container: check-docker-tool-check check-docker-buildx-tool-check check-goreleas
 	$(LOCAL_IMAGE_NAME)
 	@echo "\nThe guac container image is tagged locally as $(LOCAL_IMAGE_NAME)"
 
-# To run the service, run `make container` and then `make service`
+# To run the service, run `make container` and then `make start-service`
 # making the container is a longer process and thus not a dependency of service.
 .PHONY: start-service
 start-service: check-docker-compose-tool-check

container_files/guac-demo-compose.yaml

@@ -69,7 +69,7 @@ services:
         [
           "CMD",
           "wget",
-          "--spider",
+          "-O-",
           "http://localhost:8081/healthz"
         ]
       interval: 10s

docker-compose.yml

@@ -119,7 +119,7 @@ services:
         [
           "CMD",
           "wget",
-          "--spider",
+          "-O-",
           "http://localhost:8081/healthz"
         ]
       interval: 10s