Set up health checks for microservices correctly

Author: rkudryashov

book-service/build.gradle.kts

@@ -54,10 +54,7 @@ tasks.withType<ProcessAot> {
 
 tasks.withType<BootBuildImage> {
     buildpacks = setOf("gcr.io/paketo-buildpacks/java-native-image", "gcr.io/paketo-buildpacks/health-checker")
-    environment = mapOf(
-        "BP_HEALTH_CHECKER_ENABLED" to "true",
-        "THC_PATH" to "/actuator/health"
-    )
+    environment = mapOf("BP_HEALTH_CHECKER_ENABLED" to "true")
     imageName = "$dockerRepository:${project.name}"
 }
 

compose.yaml

@@ -8,8 +8,10 @@ services:
     restart: always
     depends_on:
       - book-db
+    environment:
+      THC_PATH: "/actuator/health"
     healthcheck:
-      test: [ "CMD", "health-check" ]
+      test: [ "CMD", "/workspace/health-check" ]
       interval: 1m
       retries: 3
       start_period: 10s
@@ -21,8 +23,10 @@ services:
     restart: always
     depends_on:
       - user-db
+    environment:
+      THC_PATH: "/actuator/health"
     healthcheck:
-      test: [ "CMD", "health-check" ]
+      test: [ "CMD", "/workspace/health-check" ]
       interval: 1m
       retries: 3
       start_period: 10s
@@ -36,8 +40,9 @@ services:
       - user-db
     environment:
       SPRING_APPLICATION_NAME: user-service-2
+      THC_PATH: "/actuator/health"
     healthcheck:
-      test: [ "CMD", "health-check" ]
+      test: [ "CMD", "/workspace/health-check" ]
       interval: 1m
       retries: 3
       start_period: 10s
@@ -49,8 +54,10 @@ services:
     restart: always
     depends_on:
       - notification-db
+    environment:
+      THC_PATH: "/actuator/health"
     healthcheck:
-      test: [ "CMD", "health-check" ]
+      test: [ "CMD", "/workspace/health-check" ]
       interval: 1m
       retries: 3
       start_period: 10s

notification-service/build.gradle.kts

@@ -56,10 +56,7 @@ tasks.withType<ProcessAot> {
 
 tasks.withType<BootBuildImage> {
     buildpacks = setOf("gcr.io/paketo-buildpacks/java-native-image", "gcr.io/paketo-buildpacks/health-checker")
-    environment = mapOf(
-        "BP_HEALTH_CHECKER_ENABLED" to "true",
-        "THC_PATH" to "/actuator/health"
-    )
+    environment = mapOf("BP_HEALTH_CHECKER_ENABLED" to "true")
     imageName = "$dockerRepository:${project.name}"
 }
 

user-service/build.gradle.kts

@@ -43,10 +43,7 @@ kotlin {
 
 tasks.withType<BootBuildImage> {
     buildpacks = setOf("gcr.io/paketo-buildpacks/java-native-image", "gcr.io/paketo-buildpacks/health-checker")
-    environment = mapOf(
-        "BP_HEALTH_CHECKER_ENABLED" to "true",
-        "THC_PATH" to "/actuator/health"
-    )
+    environment = mapOf("BP_HEALTH_CHECKER_ENABLED" to "true")
     imageName = "$dockerRepository:${project.name}"
 }