Yes, it is possible to send notifications to a private Slack channel from Spinnaker.
To do this, you will need to create a Slack bot and invite it to the private channel where you want to receive notifications. Here are the steps to follow:
Create a new Slack bot: Go to https://api.slack.com/apps and create a new bot. Give it a name and select the workspace where you want to receive notifications.
Invite the bot to the private channel: In Slack, invite the bot to the private channel where you want to receive notifications. You can do this by mentioning the bot in the channel and sending an invite.
Configure incoming webhooks: In the Slack app settings, go to "Incoming Webhooks" and activate it. Choose the channel where you want to receive notifications and copy the webhook URL.
Configure Spinnaker: In Spinnaker, go to the "Notifications" section and create a new notification. Select "Slack" as the type and paste the webhook URL from step 3. You can customize the message format as per your requirement.
Test the integration: To test the integration, create a new deployment in Spinnaker. You should receive a notification in the private Slack channel you configured in step 2.
That's it! You have successfully integrated Spinnaker with a private Slack channel and will now receive deployment notifications in the specified channel.
