消费Actuator端点

$ curl localhost:8080/actuator/info
{}

info:
  contact:
    email: support@tacocloud.com
    phone: 822-625-6831

{
  "contact": {
    "email": "support@tacocloud.com",
    "phone": "822-625-6831"
  }
}

$ curl localhost:8080/actuator/health
{"status":"UP"}

management:
  endpoint:
    health:
      show-details: always

{
  "status": "UP",
  "details": {
    "mongo": {
      "status": "UP",
      "details": {
        "version": "3.5.5"
      }
    },
    "diskSpace": {
      "status": "UP",
      "details": {
        "total": 499963170816,
        "free": 177284784128,
        "threshold": 10485760
      }
    }
  }
}

{
  "contexts": {
    "application-1": {
      "beans": {
...
        "ingredientsController": {
          "aliases": [],
          "scope": "singleton",
          "type": "tacos.ingredients.IngredientsController",
          "resource": "file [/Users/habuma/Documents/Workspaces/
            TacoCloud/ingredient-service/target/classes/tacos/
            ingredients/IngredientsController.class]",
          "dependencies": [
            "ingredientRepository"
          ]
        },
...
      },
      "parentId": null
    }
  }
}

{
  "contexts": {
    "application-1": {
      "positiveMatches": {
...
        "MongoDataAutoConfiguration#mongoTemplate": [
          {
            "condition": "OnBeanCondition",
            "message": "@ConditionalOnMissingBean (types:
                org.springframework.data.mongodb.core.MongoTemplate;
                SearchStrategy: all) did not find any beans"
          }
        ],
...
      },
      "negativeMatches": {
...
        "DispatcherServletAutoConfiguration": {
          "notMatched": [
            {
              "condition": "OnClassCondition",
              "message": "@ConditionalOnClass did not find required
                  class 'org.springframework.web.servlet.
                                                 DispatcherServlet'"
            }
          ],
          "matched": []
        },
...
      },
      "unconditionalClasses": [
...
        "org.springframework.boot.autoconfigure.context.
                          ConfigurationPropertiesAutoConfiguration",
...
      ]
    }
  }
}

$ curl localhost:8080/actuator/env
{
  "activeProfiles": [
    "development"
  ],
  "propertySources": [
...
    {
      "name": "systemEnvironment",
      "properties": {
        "PATH": {
          "value": "/usr/bin:/bin:/usr/sbin:/sbin",
          "origin": "System Environment Property \"PATH\""
         },
...
         "HOME": {
           "value": "/Users/habuma",
           "origin": "System Environment Property \"HOME\""
        }
      }
    },
    {
      "name": "applicationConfig: [classpath:/application.yml]",
      "properties": {
        "spring.application.name": {
          "value": "ingredient-service",
          "origin": "class path resource [application.yml]:3:11"
        },
        "server.port": {
          "value": 8080,
          "origin": "class path resource [application.yml]:9:9"
        },
...
      }
    },
...
  ]
}

$ curl localhost:8080/actuator/env/server.port
{
  "property": {
    "source": "systemEnvironment", "value": "8080"
  },
  "activeProfiles": [ "development" ],
  "propertySources": [
    { "name": "server.ports" },
    { "name": "mongo.ports" },
    { "name": "systemProperties" },
    { "name": "systemEnvironment",
      "property": {
        "value": "8080",
        "origin": "System Environment Property \"SERVER_PORT\""
      }
    },
    { "name": "random" },
    { "name": "applicationConfig: [classpath:/application.yml]",
      "property": {
        "value": 0,
        "origin": "class path resource [application.yml]:9:9"
      }
    },
    { "name": "springCloudClientHostInfo" },
    { "name": "refresh" },
    { "name": "defaultProperties" },
    { "name": "Management Server" }
  ]
}

$ curl localhost:8080/actuator/env \
       -d'{"name":"tacocloud.discount.code","value":"TACOS1234"}' \
       -H "Content-type: application/json"
{"tacocloud.discount.code":"TACOS1234"}

$ curl localhost:8080/actuator/env -X DELETE
{"tacocloud.discount.code":"TACOS1234"}

$ curl localhost:8080/actuator/mappings | jq
{
  "contexts": {
    "application-1": {
      "mappings": {
        "dispatcherHandlers": {
          "webHandler": [
...
            {
              "predicate": "{[/ingredients],methods = [GET]}",
              "handler": "public
    reactor.core.publisher.Flux<tacos.ingredients.Ingredient>
    tacos.ingredients.IngredientsController.allIngredients()",
             "details": {
               "handlerMethod": {
                 "className": "tacos.ingredients.IngredientsController",
                 "name": "allIngredients",
                 "descriptor": "()Lreactor/core/publisher/Flux;"
               },
                "handlerFunction": null,
                "requestMappingConditions": {
                  "consumes": [],
                  "headers": [],
                  "methods": [
                    "GET"
                  ],
                  "params": [],
                  "patterns": [
                    "/ingredients"
                  ],
                  "produces": []
                }
              }
            },
...
          ]
        }
      },
      "parentId": "application-1"
    },
    "bootstrap": {
      "mappings": {
        "dispatcherHandlers": {}
      },
      "parentId": null
    }
  }
}

{
  "levels": [ "OFF", "ERROR", "WARN", "INFO", "DEBUG", "TRACE" ],
  "loggers": {
    "ROOT": {
      "configuredLevel": "INFO", "effectiveLevel": "INFO"
    },
...
    "org.springframework.web": {
      "configuredLevel": null, "effectiveLevel": "INFO"
    },
...
    "tacos": {
      "configuredLevel": null, "effectiveLevel": "INFO"
    },
    "tacos.ingredients": {
      "configuredLevel": null, "effectiveLevel": "INFO"
    },
    "tacos.ingredients.IngredientServiceApplication": {
      "configuredLevel": null, "effectiveLevel": "INFO"
    }
  }
}

{
  "configuredLevel": null,
  "effectiveLevel": "INFO"
}

$ curl localhost:8080/actuator/loggers/tacocloud/ingredients \
       -d'{"configuredLevel":"DEBUG"}' \
       -H"Content-type: application/json"

{
  "configuredLevel": "DEBUG",
  "effectiveLevel": "DEBUG"
}

{
  "traces": [
    {
      "timestamp": "2020-06-03T23:41:24.494Z",
      "principal": null,
      "session": null,
      "request": {
        "method": "GET",
        "uri": "http://localhost:8080/ingredients",
        "headers": {
          "Host": ["localhost:8080"],
          "User-Agent": ["curl/7.54.0"],
          "Accept": ["*/*"]
        },
        "remoteAddress": null
      },
      "response": {
        "status": 200,
        "headers": {
          "Content-Type": ["application/json;charset = UTF-8"]
        }
      },
      "timeTaken": 4
    },
...
  ]
}

{
  "threadName": "reactor-http-nio-8",
  "threadId": 338,
  "blockedTime": -1,
  "blockedCount": 0,
  "waitedTime": -1,
  "waitedCount": 0,
  "lockName": null,
  "lockOwnerId": -1,
  "lockOwnerName": null,
  "inNative": true,
  "suspended": false,
  "threadState": "RUNNABLE",
  "stackTrace": [
    {
      "methodName": "kevent0",
      "fileName": "KQueueArrayWrapper.java",
      "lineNumber": -2,
      "className": "sun.nio.ch.KQueueArrayWrapper",
      "nativeMethod": true
    },
    {
      "methodName": "poll",
      "fileName": "KQueueArrayWrapper.java",
      "lineNumber": 198,
      "className": "sun.nio.ch.KQueueArrayWrapper",
      "nativeMethod": false
    },
...
  ],
  "lockedMonitors": [
    {
      "className": "io.netty.channel.nio.SelectedSelectionKeySet",
      "identityHashCode": 1039768944,
      "lockedStackDepth": 3,
      "lockedStackFrame": {
        "methodName": "lockAndDoSelect",
        "fileName": "SelectorImpl.java",
        "lineNumber": 86,
        "className": "sun.nio.ch.SelectorImpl",
        "nativeMethod": false
      }
    },
...
  ],
  "lockedSynchronizers": [],
  "lockInfo": null
}