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doc(quickstarts): improved hello-world example
Removed declared exception in ResourceMojo.extractEnricherConfig that is never thrown #2780 Signed-off-by: wayne kirimi <[email protected]> --- chore(example): Added /hello endpoint that prints a message Signed-off-by: wayne kirimi <[email protected]> --- chore(example): Removed declarations of thrown exceptions Signed-off-by: wayne kirimi <[email protected]> --- chore(example): Updated image name Signed-off-by: wayne kirimi <[email protected]> --- chore(example): Updated quickstart readme Signed-off-by: wayne kirimi <[email protected]> --- chore(example): Updated quickstart with requested changes Signed-off-by: wayne kirimi <[email protected]> --- chore(example): Updated project Readme Signed-off-by: wayne kirimi <[email protected]> --- chore(example): Refactored a child class. Signed-off-by: wayne kirimi <[email protected]> --- Merge branch 'master' into improve-example-2788 --- fix/quickstart-example: Fixed requested changes. Signed-off-by:wayne kirimi <[email protected]> --- Update RootHandler.java --- Readme changes for Hello-World quickstart --- Readme change --- review: fix hello-world quickstart
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@@ -138,7 +138,11 @@ $ git clone [email protected]:eclipse/jkube.git | |
| # 2. Move to Hello World Quickstart folder | ||
| $ cd jkube/quickstarts/maven/hello-world | ||
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| # 3. Build Project and run JKube goals | ||
| # 3. Configure your local environment to re-use the Docker daemon inside the Minikube instance. | ||
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| ~ jkube/quickstarts/maven/hello-world : $ eval $(minikube -p minikube docker-env) | ||
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| # 4. Build Project and run JKube goals | ||
| $ mvn clean install \ | ||
| k8s:build `# Build Docker Image` \ | ||
| k8s:resource `# Generate Kubernetes Manifests` \ | ||
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@@ -150,26 +154,21 @@ $ mvn clean install \ | |
| ```shell script | ||
| # Using Kubectl | ||
| $ kubectl get pods | ||
| NAME READY STATUS RESTARTS AGE | ||
| helloworld-7c4665f464-xwskj 0/1 Completed 2 27s | ||
| $ kubectl logs jkube-sample-helloworld-7c4665f464-xwskj | ||
| Hello World! | ||
| # Using JKube | ||
| $ mvn k8s:log | ||
| [INFO] k8s: [NEW] helloworld-7c4665f464-xwskj status: Running | ||
| [INFO] k8s: [NEW] Tailing log of pod: helloworld-587dfff745-2kdpq | ||
| [INFO] k8s: [NEW] Press Ctrl-C to stop tailing the log | ||
| [INFO] k8s: [NEW] | ||
| [INFO] k8s: Hello World! | ||
| [INFO] k8s: [NEW] helloworld-7c4665f464-xwskj status: Running | ||
| NAME READY STATUS RESTARTS AGE | ||
| helloworld-664bf5fdff-2bmrt 1/1 Running 0 9s | ||
| $ kubectl get svc | ||
| helloworld NodePort 10.110.92.145 <none> 8080:32353/TCP 58m | ||
| kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 7h | ||
| $ curl `minikube ip`:32353/hello | ||
| Hello World | ||
| ``` | ||
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| #### Troubleshooting | ||
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| If you experience problems using minikube that pod's status shows 'ImagePullBackOff' and not 'Completed' you must share the minikube's docker daemon environment with your shell with: | ||
| If you experience problems using minikube that pod's status shows 'ImagePullBackOff' and not 'Running' you must share the minikube's docker daemon environment with your shell with: | ||
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| ```shell script | ||
| $ eval $(minikube docker-env) | ||
| $ eval $(minikube -p minikube docker-env) | ||
| ``` | ||
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| You can remove this from your shell again with: | ||
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44 changes: 44 additions & 0 deletions
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...arts/maven/hello-world/src/main/java/org/eclipse/jkube/sample/helloworld/RootHandler.java
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| /* | ||
| * Copyright (c) 2019 Red Hat, Inc. | ||
| * This program and the accompanying materials are made | ||
| * available under the terms of the Eclipse Public License 2.0 | ||
| * which is available at: | ||
| * | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Red Hat, Inc. - initial API and implementation | ||
| */ | ||
| package org.eclipse.jkube.sample.helloworld; | ||
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| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
| import java.util.logging.Logger; | ||
| import java.util.logging.Level; | ||
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| import com.sun.net.httpserver.HttpExchange; | ||
| import com.sun.net.httpserver.HttpHandler; | ||
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| /** | ||
| * @author: Wayne Kirimi | ||
| */ | ||
| public class RootHandler implements HttpHandler { | ||
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| private static final Logger log = Logger.getLogger(App.class.getSimpleName()); | ||
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| @Override | ||
| public void handle(HttpExchange exchange) { | ||
| try (OutputStream outputStream = exchange.getResponseBody()) { | ||
| log.info("GET /hello"); | ||
| String response = "Hello World"; | ||
| exchange.sendResponseHeaders(200, response.length()); | ||
| exchange.getResponseHeaders().set("Content-Type", "text/plain"); | ||
| outputStream.write(response.getBytes()); | ||
| log.info("Response written successfully: " + response); | ||
| } catch (IOException e) { | ||
| log.severe("Server failed to respond: " + e.getMessage()); | ||
| } | ||
| } | ||
| } |