Add logging, /status and more configuration

.github/workflows/build-and-publish.yaml

@@ -14,13 +14,6 @@ jobs:
         run: |
           # GITHUB_ENV file is sourced by subsequent steps
           echo "VERSION=${{ github.event.release.tag_name }}" >> $GITHUB_ENV
-          # ENV is 'beta' if it's a pre-release or contains 'beta' in name
-          if [[ "${{ github.event.release.prerelease }}" == "true" || "${{ github.event.release.tag_name }}" =~ .*beta.* ]]
-          then
-            echo "ENV=beta" >> $GITHUB_ENV
-          else
-            echo "ENV=prod" >> $GITHUB_ENV
-          fi
       - name: Install JDK
         uses: actions/setup-java@v3
         with:

README.md

@@ -8,15 +8,20 @@ Boot, so start-up times are very small.
 
 It provides the following endpoints:
 
-* `/` - just responds with `OK`
-* `/hello` - responds with a canned greeting message, which
-  can be over-ridden using the `GREETING_MESSAGE` environment
-  variable.
-* `/env` - responds with a JSON map of current environment variable settings
+* `/` - just responds with `OK`, but can be over-ridden using
+  the `OK_MESSAGE` environment variable.
 * `/echo` - a GET to this with a query-parameter of `message`
   echoes back the supplied message
 * `/echo` - a POST to this echoes back the body contents
-* `/actuator` - exposes the full range of actuator endpoints
+* `/env` - responds with a JSON map of current environment variable settings
+* `/hello` - responds with a canned greeting message, which
+  can be over-ridden using the `HELLO_MESSAGE` environment
+  variable.
+* `/status/<CODE>` - response with a status of the given code
+  value, and matching message.
 
-The liveness and readiness endpoints are also exposed on
-`/livez` and `/readyz`, respectively.
+In addition:
+
+* `/actuator` - exposes the full range of actuator endpoints
+* Liveness and readiness endpoints are also exposed on `/livez`
+  and `/readyz`, respectively.

src/main/java/com/vmware/tanzu/simplewebapp/SimpleController.java

@@ -1,35 +1,53 @@
 package com.vmware.tanzu.simplewebapp;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.HttpStatusCode;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.Map;
 
 @RestController
 public class SimpleController {
 
+    Logger logger = LoggerFactory.getLogger(SimpleController.class);
+
     @GetMapping("/")
-    public String ok() {
-        return "OK";
+    public String ok(@Value("${ok.message:OK}") String message) {
+        logger.info("Requested / requested");
+        return message;
     }
 
     @GetMapping("/hello")
-    public String hello(@Value("${greeting.message:Hello from the Simple Web App!}") String message) {
+    public String hello(@Value("${hello.message:Hello from the Simple Web App!}") String message) {
+        logger.info("Requested /hello");
         return message;
     }
 
     @GetMapping("/env")
     public Map<String,String> env() {
+        logger.info("Requested /env");
         return System.getenv();
     }
 
     @GetMapping("/echo")
     public String echoParam(@RequestParam String message) {
+        logger.info("Requested /echo via GET");
         return message;
     }
 
     @PostMapping("/echo")
     public String echoBody(@RequestBody String body) {
+        logger.info("Requested /echo via POST");
         return body;
     }
+
+    @GetMapping("/status/{code}")
+    public ResponseEntity<String> status(@PathVariable Integer code) {
+        logger.info("Requested /status/" + code);
+        return new ResponseEntity<>(HttpStatus.valueOf(code).getReasonPhrase(), HttpStatusCode.valueOf(code));
+    }
 }