fix: improve keycloak compose health check (#162)

Author: nmorenor

compose/keycloak/compose-keycloak-no-nginx.yaml

@@ -62,11 +62,15 @@ services:
     networks:
       - codetogethernet
     healthcheck:
-      test: ["CMD-SHELL", "echo > /dev/tcp/localhost/8080 || exit 1"]
+      test:
+        [
+          "CMD-SHELL",
+          "bash -lc 'exec 3<>/dev/tcp/127.0.0.1/9000 && printf \"GET /health/ready HTTP/1.1\\r\\nHost: localhost\\r\\nConnection: close\\r\\n\\r\\n\" >&3 && head -n1 <&3 | grep -q \" 200 \"'"
+        ]
       interval: 10s
       timeout: 5s
-      retries: 5
-      start_period: 30s
+      retries: 30
+      start_period: 90s
 
 volumes:
   mysql_data:

compose/keycloak/compose-keycloak.yaml

@@ -81,11 +81,15 @@ services:
     networks:
       - codetogethernet
     healthcheck:
-      test: ["CMD-SHELL", "echo > /dev/tcp/localhost/8080 || exit 1"]
+      test:
+        [
+          "CMD-SHELL",
+          "bash -lc 'exec 3<>/dev/tcp/127.0.0.1/9000 && printf \"GET /health/ready HTTP/1.1\\r\\nHost: localhost\\r\\nConnection: close\\r\\n\\r\\n\" >&3 && head -n1 <&3 | grep -q \" 200 \"'"
+        ]
       interval: 10s
       timeout: 5s
-      retries: 5
-      start_period: 30s
+      retries: 30
+      start_period: 90s
 
 volumes:
   mysql_data: