3.6. 開発モードでの Camel K インテグレーションの実行

手順

1. 以下の例のように、oc クライアントツールを使用して OpenShift クラスターにログインします。

   $ oc login --token=my-token --server=https://my-cluster.example.com:6443

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2. 以下の例のように、Camel K Operator が稼働していることを確認します。

   $ oc get pod
   NAME                               READY   STATUS    RESTARTS   AGE
   camel-k-operator-86b8d94b4-pk7d6   1/1     Running   0          6m28s

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3. kamel run コマンドと --dev を入力し、クラウドの OpenShift にて開発モードでインテグレーションを実行します。以下は、簡単な Java の例になります。

   $ kamel run HelloCamelK.java --dev
   integration "hello-camel-k" created
   Progress: integration "hello-camel-k" in phase Initialization
   Progress: integration "hello-camel-k" in phase Building Kit
   Progress: integration "hello-camel-k" in phase Deploying
   Progress: integration "hello-camel-k" in phase Running
   IntegrationPlatformAvailable for Integration hello-camel-k: camel-k
   Integration hello-camel-k in phase Initialization
   No IntegrationKitAvailable for Integration hello-camel-k: creating a new integration kit
   Integration hello-camel-k in phase Building Kit
   IntegrationKitAvailable for Integration hello-camel-k: kit-bq8t5cudeam3u3sj13tg
   Integration hello-camel-k in phase Deploying
   No CronJobAvailable for Integration hello-camel-k: different controller strategy used (deployment)
   DeploymentAvailable for Integration hello-camel-k: deployment name is hello-camel-k
   No ServiceAvailable for Integration hello-camel-k: no http service required
   No ExposureAvailable for Integration hello-camel-k: no target service found
   Integration hello-camel-k in phase Running
   [2] Monitoring pod hello-camel-k-866ccb5976-sjh8x[1] Monitoring pod hello-camel-k-866ccb5976-l288p[2] 2020-04-11 14:44:53.691 INFO  [main] ApplicationRuntime - Add listener: org.apache.camel.k.listener.ContextConfigurer@159f197
   [2] 2020-04-11 14:44:53.694 INFO  [main] ApplicationRuntime - Add listener: org.apache.camel.k.listener.RoutesConfigurer@1f0f1111
   [2] 2020-04-11 14:44:53.695 INFO  [main] ApplicationRuntime - Add listener: org.apache.camel.k.listener.RoutesDumper@6e0dec4a
   [2] 2020-04-11 14:44:53.695 INFO  [main] ApplicationRuntime - Add listener: org.apache.camel.k.listener.PropertiesFunctionsConfigurer@794cb805
   [2] 2020-04-11 14:44:53.712 INFO  [main] ApplicationRuntime - Listener org.apache.camel.k.listener.PropertiesFunctionsConfigurer@794cb805 executed in phase Starting
   [2] 2020-04-11 14:44:53.721 INFO  [main] RuntimeSupport - Looking up loader for language: java
   [2] 2020-04-11 14:44:53.723 INFO  [main] RuntimeSupport - Found loader org.apache.camel.k.loader.java.JavaSourceLoader@3911c2a7 for language java from service definition
   [2] 2020-04-11 14:44:54.220 INFO  [main] RoutesConfigurer - Loading routes from: file:/etc/camel/sources/i-source-000/HelloCamelK.java?language=java
   [2] 2020-04-11 14:44:54.220 INFO  [main] ApplicationRuntime - Listener org.apache.camel.k.listener.RoutesConfigurer@1f0f1111 executed in phase ConfigureRoutes
   [2] 2020-04-11 14:44:54.224 INFO  [main] BaseMainSupport - Using properties from: file:/etc/camel/conf/application.properties
   [2] 2020-04-11 14:44:54.385 INFO  [main] ApplicationRuntime - Listener org.apache.camel.k.listener.ContextConfigurer@159f197 executed in phase ConfigureContext
   [2] 2020-04-11 14:44:54.386 INFO  [main] DefaultCamelContext - Apache Camel 3.0.1 (CamelContext: camel-k) is starting
   [2] 2020-04-11 14:44:54.387 INFO  [main] DefaultManagementStrategy - JMX is disabled
   [2] 2020-04-11 14:44:54.630 INFO  [main] DefaultCamelContext - StreamCaching is not in use. If using streams then its recommended to enable stream caching. See more details at http://camel.apache.org/stream-caching.html
   [2] 2020-04-11 14:44:54.639 INFO  [main] DefaultCamelContext - Route: java started and consuming from: timer://java?period=1s
   [2] 2020-04-11 14:44:54.643 INFO  [main] DefaultCamelContext - Total 1 routes, of which 1 are started
   [2] 2020-04-11 14:44:54.643 INFO  [main] DefaultCamelContext - Apache Camel 3.0.1 (CamelContext: camel-k) started in 0.258 seconds
   [2] 2020-04-11 14:44:54.644 INFO  [main] ApplicationRuntime - Listener org.apache.camel.k.listener.RoutesDumper@6e0dec4a executed in phase Started
   [2] 2020-04-11 14:44:55.671 INFO  [Camel (camel-k) thread #1 - timer://java] info - Exchange[ExchangePattern: InOnly, BodyType: String, Body: Hello Camel K from java]
   ...

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4. インテグレーション DSL ファイルの内容を編集し、変更を保存します。ターミナルで変更が即座に表示されることを確認します。以下に例を示します。

   ...
   integration "hello-camel-k" updated
   ...
   [3] 2020-04-11 14:45:06.792 INFO  [main] DefaultCamelContext - Route: java started and consuming from: timer://java?period=1s
   [3] 2020-04-11 14:45:06.795 INFO  [main] DefaultCamelContext - Total 1 routes, of which 1 are started
   [3] 2020-04-11 14:45:06.796 INFO  [main] DefaultCamelContext - Apache Camel 3.0.1 (CamelContext: camel-k) started in 0.323 seconds
   [3] 2020-04-11 14:45:06.796 INFO  [main] ApplicationRuntime - Listener org.apache.camel.k.listener.RoutesDumper@6e0dec4a executed in phase Started
   [3] 2020-04-11 14:45:07.826 INFO  [Camel (camel-k) thread #1 - timer://java] info - Exchange[ExchangePattern: InOnly, BodyType: String, Body: Ciao Camel K from java]
   ...

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5. Ctrl-C キーを押して、ターミナルでログインを終了します。