Automate messaging dev Slack channel when new PRs are opened

[eburdekin]

Overview

Right now our team messages the #expunge-assist-dev Slack channel when we open new PRs on dev. We have a few options to automate this step in our process.

Action Items

• Review options and evaluate whether a new GitHub Action, the GitHub App Slack integration, or another way is better for our purposes
• Review steps here https://github.com/slackapi/slack-github-action?tab=readme-ov-file#technique-2-slack-app
• Send request to install new Slack bot app to workspace owner/admin
• Code GitHub Action
• Ask dev lead to add bot token as a repo secret named SLACK_BOT_TOKEN and Slack channel ID as SLACK_CHANNEL_ID
• Invite bot to dev Slack channel
• Make sure the notifications are only for pull requests opened on the dev branch

Resources/Notes

• GitHub Actions for Slack
• GitHub-Slack integration

[github-actions]

Hey @eburdekin! Thanks for taking this issue.

To help keep everyone in the loop, please comment your Estimated Time to Completion (ETC) below!

Thanks again!

[github-actions]

Hey @eburdekin! Thanks again for taking this issue.

Time for an update! Please comment the following update:
**Progress:** What's the status of the project? What have you done and what still needs to be done?
**Estimated Time to Completion (ETC):** When do you estimate to be finished?
**Blockers:** Anything preventing you from finishing?

Thanks again!

[github-actions]

Hey @eburdekin! Thanks again for taking this issue.

Time for an update! Please comment the following update:
**Progress:** What's the status of the project? What have you done and what still needs to be done?
**Estimated Time to Completion (ETC):** When do you estimate to be finished?
**Blockers:** Anything preventing you from finishing?

Thanks again!

[sydneywalcoff]

@eburdekin just got to this, but I was able to adjust settings on github. I'll leave this up until we see a PR make it to the dev channel.

[github-actions]

Hey @sydneywalcoff, @eburdekin! Thanks again for taking this issue.

Time for an update! Please comment the following update:
**Progress:** What's the status of the project? What have you done and what still needs to be done?
**Estimated Time to Completion (ETC):** When do you estimate to be finished?
**Blockers:** Anything preventing you from finishing?

Thanks again!

[sydneywalcoff]

@eburdekin I'm thinking that the best course of action for us is going to be the GHA route.

[eburdekin]

@sydneywalcoff sounds good! I'll work on that

[eburdekin]

Just requested to install the EA Dev Bot

[eburdekin]

@sydneywalcoff Updated the steps in the description above - just need to get the bot request approved, add the secrets to the repo, and invite the bot to our channel. I have the GitHub action coded on this branch once those are complete 🚀