| # Camel Knative JIRA Source Basic Example |
| |
| This example demonstrates how to get started with Camel based Knative sources by showing you some of the most important |
| features that you should know before trying to develop more complex examples. |
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| You can find more information about Apache Camel and Apache Camel K on the [official Camel website](https://camel.apache.org). |
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| ## Before you begin |
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| Read the general instructions in the [root README.md file](../README.md) for setting up your environment and the Kubernetes cluster before looking at this example. |
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| Make sure you've read the [installation instructions](https://camel.apache.org/camel-k/latest/installation/installation.html) for your specific |
| cluster before starting the example. |
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| You should open this file with [Didact](https://marketplace.visualstudio.com/items?itemName=redhat.vscode-didact) if available on your IDE. |
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| ## Requirements |
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| <a href='didact://?commandId=vscode.didact.validateAllRequirements' title='Validate all requirements!'><button>Validate all Requirements at Once!</button></a> |
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| **Kubectl CLI** |
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| The Kubernetes `kubectl` CLI tool will be used to interact with the Kubernetes cluster. |
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| [Check if the Kubectl CLI is installed](didact://?commandId=vscode.didact.cliCommandSuccessful&text=kubectl-requirements-status$$kubectl%20help&completion=Checked%20kubectl%20tool%20availability "Tests to see if `kubectl help` returns a 0 return code"){.didact} |
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| *Status: unknown*{#kubectl-requirements-status} |
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| **Connection to a Kubernetes cluster** |
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| You need to connect to a Kubernetes cluster in order to run the example. |
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| [Check if you're connected to a Kubernetes cluster](didact://?commandId=vscode.didact.cliCommandSuccessful&text=cluster-requirements-status$$kubectl%20get%20pod&completion=Checked%20Kubernetes%20connection "Tests to see if `kubectl get pod` returns a 0 return code"){.didact} |
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| *Status: unknown*{#cluster-requirements-status} |
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| **Apache Camel K CLI ("kamel")** |
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| You need the Apache Camel K CLI ("kamel") in order to access all Camel K features. |
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| [Check if the Apache Camel K CLI ("kamel") is installed](didact://?commandId=vscode.didact.requirementCheck&text=kamel-requirements-status$$kamel%20version$$Camel%20K%20Client&completion=Checked%20if%20Camel%20K%20CLI%20is%20available%20on%20this%20system. "Tests to see if `kamel version` returns a result"){.didact} |
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| *Status: unknown*{#kamel-requirements-status} |
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| **Knative installed on the cluster** |
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| The cluster also needs to have Knative installed and working. Refer to the [official Knative documentation](https://knative.dev/docs/install/) for information on how to install it in your cluster. |
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| [Check if the Knative Serving is installed](didact://?commandId=vscode.didact.requirementCheck&text=kserving-project-check$$kubectl%20api-resources%20--api-group=serving.knative.dev$$kservice%2Cksvc&completion=Verified%20Knative%20services%20installation. "Verifies if Knative Serving is installed"){.didact} |
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| *Status: unknown*{#kserving-project-check} |
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| [Check if the Knative Eventing is installed](didact://?commandId=vscode.didact.requirementCheck&text=keventing-project-check$$kubectl%20api-resources%20--api-group=messaging.knative.dev$$inmemorychannels&completion=Verified%20Knative%20eventing%20services%20installation. "Verifies if Knative Eventing is installed"){.didact} |
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| *Status: unknown*{#keventing-project-check} |
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| **Knative Camel Source installed on the cluster** |
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| The cluster also needs to have installed the Knative Camel Source from the camel.yaml in the [Eventing Sources release page](https://github.com/knative/eventing-contrib/releases) |
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| [Check if the Knative Camel Source is installed](didact://?commandId=vscode.didact.requirementCheck&text=kservice-project-check$$kubectl%20api-resources%20--api-group=sources.knative.dev$$camelsources&completion=Verified%20Knative%20Camel%20Source%20installation. "Verifies if Knative Camel Source is installed"){.didact} |
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| *Status: unknown*{#kservice-project-check} |
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| ### Optional Requirements |
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| The following requirements are optional. They don't prevent the execution of the demo, but may make it easier to follow. |
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| **VS Code Extension Pack for Apache Camel** |
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| The VS Code Extension Pack for Apache Camel provides a collection of useful tools for Apache Camel K developers, |
| such as code completion and integrated lifecycle management. They are **recommended** for the tutorial, but they are **not** |
| required. |
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| You can install it from the VS Code Extensions marketplace. |
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| [Check if the VS Code Extension Pack for Apache Camel by Red Hat is installed](didact://?commandId=vscode.didact.extensionRequirementCheck&text=extension-requirement-status$$redhat.apache-camel-extension-pack&completion=Camel%20extension%20pack%20is%20available%20on%20this%20system. "Checks the VS Code workspace to make sure the extension pack is installed"){.didact} |
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| *Status: unknown*{#extension-requirement-status} |
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| ## 1. Preparing the namespace |
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| Let's open a terminal and go to the example directory: |
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| ``` |
| cd 05-knative-source-jira |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$cd%2005-knative-source-jira&completion=Executed%20command. "Opens a new terminal and sends the command above"){.didact}) |
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| We're going to create a namespace named `camel-jira-source` for running the example. To create it, execute the following command: |
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| ``` |
| kubectl create namespace camel-jira-source |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20create%20namespace%20camel-jira-source&completion=New%20project%20creation. "Opens a new terminal and sends the command above"){.didact}) |
| |
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| Now we can set the `camel-jira-source` namespace as default namespace for the following commands: |
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| ``` |
| kubectl config set-context --current --namespace=camel-jira-source |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20config%20set-context%20--current%20--namespace%3Dcamel-jira-source&completion=New%20project%20creation. "Opens a new terminal and sends the command above"){.didact}) |
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| You need to install Camel K in the `camel-jira-source` namespace (or globally in the whole cluster). |
| In many settings (e.g. OpenShift, CRC), it's sufficient to execute the following command to install Camel K: |
| |
| ``` |
| kamel install --maven-repository https://maven.atlassian.com/repository/public |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kamel%20install%20--maven-repository%20https://maven.atlassian.com/repository/public&completion=Installing%20Camel-K. "Opens a new terminal and sends the command above"){.didact}) |
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| NOTE: The `kamel install` command requires some prerequisites to be successful in some situations, e.g. you need to enable the registry addon on Minikube. Refer to the [Camel K install guide](https://camel.apache.org/camel-k/latest/installation/installation.html) for cluster-specific instructions. |
| We need also add atlassian repository so jira client can be sucessfully downloaded. |
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| To check that Camel K is installed we'll retrieve the IntegrationPlatform object from the namespace: |
| |
| ``` |
| kubectl get integrationplatform |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20get%20integrationplatform&completion=Executed%20Command. "Opens a new terminal and sends the command above"){.didact}) |
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| You should find an IntegrationPlatform in status `Ready`. |
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| You can now proceed to the next section. |
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| ## 2. Preparing the environment |
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| This repository contains a simple [jira.properties](didact://?commandId=vscode.openFolder&projectFilePath=0x-jira-service-event-source/jira.properties&completion=Opened%20the%jira.properties%20file "Opens the jira.properties file"){.didact} that contains basic configuration properties for the jira component: |
| |
| - `jira.url` URL to jira instance |
| - `jira.username` Username for jira |
| - `jira.password` - password/access token * |
| - `jira.jql` - JQL that contains at least PROJECT (`PROJECT=CAMEL`) |
| |
| NOTE: For atlassian cloud jira password can't be used so it's necessary to create an API token and use it instead of user password. https://confluence.atlassian.com/cloud/api-tokens-938839638.html |
| |
| ``` |
| kubectl create secret generic jira --from-file=jira.properties |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20create%20secret%20generic%20jira%20--from-file%3Djira.properties&completion=secret%20%22jira%22%20created. "Create a secret with jira configuration"){.didact}) |
| |
| As the example levareges [Knative Eventing channels](https://knative.dev/docs/eventing/channels/), we need to create the one that the example will use: |
| |
| ``` |
| kubectl apply -f jira-channel.yaml |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20apply%20-f%20jira-channel.yaml&completion=inmemorychannel.messaging.knative.dev/telegram$20created. "Create a Knative InMemoryChannel named jira"){.didact}) |
| |
| ## 2. Running a Camel Source |
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| This repository contains a simple Camel Source based on the [Jira component](https://camel.apache.org/components/latest/jira-component.html) that sends new comments/issues created in certain jira project. To forward new comments change uri defined in source definiton from ` uri: jira:newIssues` to `uri: jira:newComments`. |
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| Use the following command to deploy the Camel Source: |
| |
| ``` |
| kubectl apply -f jira-new-issues.yaml |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20apply%20-f%20jira-new-issues.yaml&completion=camelsource.sources.knative.dev/camel-telegram-source%20created. "Opens a new terminal and sends the command above"){.didact}) |
| |
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| ## 2. Running a basic integration to see new issues in the console |
| |
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| ``` |
| kamel run jira-consumer.groovy --dev |
| ``` |
| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kamel%20run%20jira-consumer.groovy%20--dev&completion=Camel%20K%20jira-consumer%20integration%20run%20in%20dev%20mode. "Opens a new terminal and sends the command above"){.didact}) |
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| If everything is ok, after the build phase finishes, you should see the Camel integration running and printing the mesage you have sent to tour Telegram Bot. |
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| ## 4. Uninstall |
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| To cleanup everything, execute the following command: |
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| ```kubectl delete namespace camel-jira-source``` |
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| ([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20delete%20namespace%20camel-jira-source&completion=Removed%20the%20namespace%20from%20the%20cluster. "Cleans up the cluster after running the example"){.didact}) |