This project is a slack bot that waits for approval on a specified channel and exits upon approval. It is used to let Product Managers approve a release into production using Tekton Pipeline.

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Tekton Pipeline - Approval Slack Bot

This project is a slack bot that waits for approval on a specified channel and exits upon approval. It is used to let Product Managers approve a release into production using Tekton Pipeline.

It uses Quarkus, the Supersonic Subatomic Java Framework. If you want to learn more about Quarkus, please visit its website: https://quarkus.io/ .

Pre-requisites

Create a Slack application on api.slack.com/apps.
Create an App-Level Token with the connections:write scope.
Enable Socket Mode.
In OAuth & Permissions, enable the app_mentions:read, channels:read,chat:write and commands scopes.
In the Slash Commands, add the /lgtm command.
Install App to your Workspace

Usage

Invite the bot to your channel
Start the bot with the SLACK_CHANNEL and TEKTON_PIPELINE_ID environment variables
Wait for the bot to post the message on the channel
Send the "/lgtm 1234" command (where 1234 is the id of the tekton pipeline to approve)
The application exits with code 0

Running the application in dev mode

Install Java 11:

sudo dnf install java-11-openjdk-devel
sudo alternatives --config java
sudo alternatives --config javac
export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-11.0.19.0.7-1.fc37.x86_64

You can run your application in dev mode that enables live coding using:

export SLACK_CHANNEL="#mad-roadshow-france-2023"
export TEKTON_PIPELINE_ID="1234"
export SLACK_BOT_TOKEN="xoxb-...."
export SLACK_APP_TOKEN="xapp-...."
./mvnw compile quarkus:dev

Packaging and running the application

The application can be packaged using:

./mvnw package

It produces the quarkus-run.jar file in the target/quarkus-app/ directory. Be aware that it’s not an über-jar as the dependencies are copied into the target/quarkus-app/lib/ directory.

The application is now runnable using java -jar target/quarkus-app/quarkus-run.jar.

If you want to build an über-jar, execute the following command:

./mvnw package -Dquarkus.package.type=uber-jar

The application, packaged as an über-jar, is now runnable using java -jar target/*-runner.jar.

Creating a native executable

You can create a native executable using:

./mvnw package -Pnative

Or, if you don't have GraalVM installed, you can run the native executable build in a container using:

./mvnw package -Pnative -Dquarkus.native.container-build=true

You can then execute your native executable with: ./target/slack-bot-1.0.0-SNAPSHOT-runner

If you want to learn more about building native executables, please consult https://quarkus.io/guides/maven-tooling.

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