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The following commit(s) were added to refs/heads/master by this push: new 716aa13 Add new basic example for AWS Kinesis 716aa13 is described below commit 716aa13ded409fb6e7182220b7efb8214f54354f Author: Otavio Rodolfo Piske <opi...@redhat.com> AuthorDate: Wed Jul 8 16:23:02 2020 +0200 Add new basic example for AWS Kinesis --- .../aws-kinesis-channel.yaml | 7 + .../aws-kinesis-consumer.groovy | 13 ++ .../aws-kinesis-producer.groovy | 13 ++ .../aws-kinesis-source.yaml | 33 ++++ 04-aws-kinesis-source-basic/aws-kinesis.properties | 2 + 04-aws-kinesis-source-basic/readme.didact.md | 185 +++++++++++++++++++++ 04-aws-kinesis-source-basic/readme.md | 1 + 7 files changed, 254 insertions(+) diff --git a/04-aws-kinesis-source-basic/aws-kinesis-channel.yaml b/04-aws-kinesis-source-basic/aws-kinesis-channel.yaml new file mode 100644 index 0000000..4381711 --- /dev/null +++ b/04-aws-kinesis-source-basic/aws-kinesis-channel.yaml @@ -0,0 +1,7 @@ +# +# Knative Channel +# +apiVersion: messaging.knative.dev/v1alpha1 +kind: InMemoryChannel +metadata: + name: aws-kinesis \ No newline at end of file diff --git a/04-aws-kinesis-source-basic/aws-kinesis-consumer.groovy b/04-aws-kinesis-source-basic/aws-kinesis-consumer.groovy new file mode 100644 index 0000000..e1da006 --- /dev/null +++ b/04-aws-kinesis-source-basic/aws-kinesis-consumer.groovy @@ -0,0 +1,13 @@ +// camel-k: dependency=camel-aws-kinesis dependency=camel-base64 +// +// Apache Camel Kinesis Consumer +// + +// So we unmarshal it, extract the data element which is in base64 format and decode it +from('knative:channel/aws-kinesis') + .unmarshal() + .json() + .setBody { it.in.body.data } + .unmarshal() + .base64() + .log('Received: ${body}') diff --git a/04-aws-kinesis-source-basic/aws-kinesis-producer.groovy b/04-aws-kinesis-source-basic/aws-kinesis-producer.groovy new file mode 100644 index 0000000..78f9e20 --- /dev/null +++ b/04-aws-kinesis-source-basic/aws-kinesis-producer.groovy @@ -0,0 +1,13 @@ +// camel-k: dependency=camel-aws-kinesis +// +// Apache Camel Kinesis Consumer +// +// This is just a sample producer for AWS that creates 100 messages every 3 seconds +from('timer:java?period=3000&repeatCount=100') + .setHeader("CamelAwsKinesisPartitionKey") + .constant("p-01123") + .setHeader("CamelAwsKinesisSequenceNumber") + .constant(1) + .setBody() + .simple('Hello Camel K') + .to('aws-kinesis:stream?accessKey={{aws.kinesis.accessKey}}&secretKey={{aws.kinesis.accessKey}}') diff --git a/04-aws-kinesis-source-basic/aws-kinesis-source.yaml b/04-aws-kinesis-source-basic/aws-kinesis-source.yaml new file mode 100644 index 0000000..a302a1d --- /dev/null +++ b/04-aws-kinesis-source-basic/aws-kinesis-source.yaml @@ -0,0 +1,33 @@ +# +# Apache Camel AWS Kinesis Source +# +apiVersion: sources.knative.dev/v1alpha1 +kind: CamelSource +metadata: + name: camel-aws-kinesis-source +spec: + source: + integration: + configuration: + - type: secret + value: aws-kinesis + dependencies: + # Needed for the json part on the flow/steps below + - camel:jackson + # Needed for the AWS Kinesis component + - camel:camel-aws-kinesis + flow: + from: + uri: aws-kinesis:stream + parameters: + secretKey: "{{aws.kinesis.secretKey}}" + accessKey: "{{aws.kinesis.accessKey}}" + steps: + - to: "log:received?showAll=true&multiline=true" + - marshal: + json: {} + sink: + ref: + apiVersion: messaging.knative.dev/v1beta1 + kind: InMemoryChannel + name: aws-kinesis diff --git a/04-aws-kinesis-source-basic/aws-kinesis.properties b/04-aws-kinesis-source-basic/aws-kinesis.properties new file mode 100644 index 0000000..446bf1d --- /dev/null +++ b/04-aws-kinesis-source-basic/aws-kinesis.properties @@ -0,0 +1,2 @@ +aws.kinesis.accessKey=accesskey +aws.kinesis.secretKey=secretkey \ No newline at end of file diff --git a/04-aws-kinesis-source-basic/readme.didact.md b/04-aws-kinesis-source-basic/readme.didact.md new file mode 100644 index 0000000..1970ab4 --- /dev/null +++ b/04-aws-kinesis-source-basic/readme.didact.md @@ -0,0 +1,185 @@ +# Camel AWS Kinesis 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. + +You can find more information about Apache Camel and Apache Camel K on the [official Camel website](https://camel.apache.org). + +## Before you begin + +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. + +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. + +You should open this file with [Didact](https://marketplace.visualstudio.com/items?itemName=redhat.vscode-didact) if available on your IDE. + +You must create an AWS Kinesis stream named `stream` on your AWS account. + +## Requirements + +<a href='didact://?commandId=vscode.didact.validateAllRequirements' title='Validate all requirements!'><button>Validate all Requirements at Once!</button></a> + +**Kubectl CLI** + +The Kubernetes `kubectl` CLI tool will be used to interact with the Kubernetes cluster. + +[Check if the Kubectl CLI is installed](didact://?commandId=vscode.didact.cliCommandSuccessful&text=kubectl-requirements-status$$kubectl%20help&completion=Checked%20kubectl%20tool%20availability "Tests to see if `kubectl help` returns a 0 return code"){.didact} + +*Status: unknown*{#kubectl-requirements-status} + +**Connection to a Kubernetes cluster** + +You need to connect to a Kubernetes cluster in order to run the example. + +[Check if you're connected to a Kubernetes cluster](didact://?commandId=vscode.didact.cliCommandSuccessful&text=cluster-requirements-status$$kubectl%20get%20pod&completion=Checked%20Kubernetes%20connection "Tests to see if `kubectl get pod` returns a 0 return code"){.didact} + +*Status: unknown*{#cluster-requirements-status} + +**Apache Camel K CLI ("kamel")** + +You need the Apache Camel K CLI ("kamel") in order to access all Camel K features. + +[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} + +*Status: unknown*{#kamel-requirements-status} + +**Knative installed on the cluster** + +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. + +[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} + +*Status: unknown*{#kserving-project-check} + +[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} + +*Status: unknown*{#keventing-project-check} + +**Knative Camel Source installed on the cluster** + +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) + +[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} + +*Status: unknown*{#kservice-project-check} + +### Optional Requirements + +The following requirements are optional. They don't prevent the execution of the demo, but may make it easier to follow. + +**VS Code Extension Pack for Apache Camel** + +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. + +You can install it from the VS Code Extensions marketplace. + +[Check if the VS Code Extension Pack for Apache Camel by Red Hat is installed](didact://?commandId=vscode.didact.extensionRequirementCheck&text=extension-requirement-status$$redhat.apache-camel-extension-pack&completion=Camel%20extension%20pack%20is%20available%20on%20this%20system. "Checks the VS Code workspace to make sure the extension pack is installed"){.didact} + +*Status: unknown*{#extension-requirement-status} + +## 1. Preparing the namespace + +Let's open a terminal and go to the example directory: + +``` +cd 04-aws-kinesis-source-basic +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$cd%2004-aws-kinesis-source-basic&completion=Executed%20command. "Opens a new terminal and sends the command above"){.didact}) + + +We're going to create a namespace named `aws-kinesis-event-source` for running the example. To create it, execute the following command: + +``` +kubectl create namespace aws-kinesis-source-basic +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20create%20namespace%20aws-kinesis-source-basic&completion=New%20project%20creation. "Opens a new terminal and sends the command above"){.didact}) + +Now we can set the `aws-kinesis-source-basic` namespace as default namespace for the following commands: + +``` +kubectl config set-context --current --namespace=aws-kinesis-source-basic +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20config%20set-context%20--current%20--namespace%3Daws-kinesis-source-basic&completion=New%20project%20creation. "Opens a new terminal and sends the command above"){.didact}) + +You need to install Camel K in the `aws-kinesis-source-basic` 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 +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kamel%20install&completion=Installing%20Camel%20K. "Opens a new terminal and sends the command above"){.didact}) + +NOTE: The `kamel install` command requires some prerequisites to be successful in some situations, e.g. you need to enable the registry addon on Minikube. Refer to the [Camel K install guide](https://camel.apache.org/camel-k/latest/installation/installation.html) for cluster-specific instructions. + +To check that Camel K is installed we'll retrieve the IntegrationPlatform object from the namespace: + +``` +kubectl get integrationplatform +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20get%20integrationplatform&completion=Executed%20Command. "Opens a new terminal and sends the command above"){.didact}) + +You should find an IntegrationPlatform in status `Ready`. + +You can now proceed to the next section. + +## 2. Preparing the environment + +This repository contains a simple [aws-kinesis.properties](didact://?commandId=vscode.openFolder&projectFilePath=04-aws-kinesis-source-basic/aws-kinesis.properties&completion=Opened%20the%aws-kinesis.properties%20file "Opens the aws-kinesis.properties file"){.didact} that contains the access key and secret key for accessing the AWS Kinesis stream. + +``` +kubectl create secret generic aws-kinesis --from-file=aws-kinesis.properties +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20create%20secret%20generic%20aws-kinesis%20--from-file%3Daws-kinesis.properties&completion=secret%20%22aws-kinesis%22%20created. "Create a secret with AWS Kinesis credentials"){.didact}) + +As the example levareges [Knative Eventing channels](https://knative.dev/docs/eventing/channels/), we need to create the one that the example will use: + +``` +kubectl apply -f aws-kinesis-channel.yaml +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20apply%20-f%20aws-kinesis-channel.yaml&completion=inmemorychannel.messaging.knative.dev/aws-kinesis$20created. "Create a Knative InMemoryChannel named aws-kinesis"){.didact}) + + +## 2. Running a Camel Source + +This repository contains a simple Camel Source based on the [AWS Kinesis component](https://camel.apache.org/components/latest/aws-kinesis-component.html) that forward streaming events received on the AWS Kinesis stream to a Knative channel named `aws-kinesis`. + +Use the following command to deploy the Camel Source: + +``` +kubectl apply -f aws-kinesis-source.yaml +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20apply%20-f%20aws-kinesis-source.yaml&completion=camelsource.sources.knative.dev/camel-aws-kinesis-source%20created. "Opens a new terminal and sends the command above"){.didact}) + +## 2. Running a basic integration to create Kinesis events for consumption by the Camel Source + +You need a producer adding data to a Kinesis stream to try this example. This integration +comes with a sample producer that will send 100 messages with the text `Hello Camel K` +every 3 seconds. + +``` +kamel run --secret aws-kinesis aws-kinesis-producer.groovy +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kamel%20run%20--secret%20aws-kinesis%20aws-kinesis-producer.groovy&completion=Camel%20K%20aws-kinesis-producer%20integration%20run%20in%20dev%20mode. "Opens a new terminal and sends the command above"){.didact}) + +If everything is ok, after the build phase finishes, you should see the Camel integration running. + +## 3. Running a basic integration to forward Kinesis events to the console + +``` +kamel run aws-kinesis-consumer.groovy --dev +``` +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kamel%20run%20aws-kinesis-consumer.groovy%20--dev&completion=Camel%20K%20aws-kinesis-consumer%20integration%20run%20in%20dev%20mode. "Opens a new terminal and sends the command above"){.didact}) + +If everything is ok, after the build phase finishes, you should see the Camel integration running. + + +## 4. Uninstall + +To cleanup everything, execute the following command: + +```kubectl delete namespace aws-kinesis-source-basic``` + +([^ execute](didact://?commandId=vscode.didact.sendNamedTerminalAString&text=camelTerm$$kubectl%20delete%20namespace%20aws-kinesis-source-basic&completion=Removed%20the%20namespace%20from%20the%20cluster. "Cleans up the cluster after running the example"){.didact}) \ No newline at end of file diff --git a/04-aws-kinesis-source-basic/readme.md b/04-aws-kinesis-source-basic/readme.md new file mode 120000 index 0000000..c0bf82f --- /dev/null +++ b/04-aws-kinesis-source-basic/readme.md @@ -0,0 +1 @@ +readme.didact.md \ No newline at end of file