Review Docker Hub image variants from an approved Slack request
Mark an image inventory request as ready with a reaction, and let Notis retrieve the repository's image variants for review.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
List Repository Images
Tool to list image variants for a specific Docker Hub repository. Use after specifying namespace and repository.
Why this helps
An approved inventory task can slip when someone must return to it later and manually inspect the repository.
- Connects a visible approval to an immediate lookup.
- Makes image inventory easier to review in context.
- Reduces follow-up tasks after a team decision.
Setup
Build it in a few focused steps.
- 1Connect Slack and Docker Hub to Notis once in the portal.
- 2Write a plain-language instruction to list image variants for a specified Docker Hub repository only when its Slack inventory request receives the agreed approval reaction.
- 3Select Message Reaction Added and set the approval emoji and channel when appropriate.
- 4Choose a run-report channel and test with a real inventory request.
Questions about this workflow
Does the workflow change images?
No. It lists image variants in the repository for review.
Where should repository details go?
Include the namespace and repository in the original Slack request so Notis can identify the target.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Docker hub. A trigger fires from one place; an action lands in another.
Slack triggers
Docker hub actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add Organization Member
Tool to send an invitation for a user to join a Docker Hub organization. Use when you need to grant membership by inviting a user via their username after choosing the appropriate role.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Create Docker Hub Organization
Tool to create a Docker Hub organization. Use when you need to programmatically instantiate a new namespace for organizing repositories.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Create Docker Hub Repository
Tool to create a Docker Hub repository under a namespace. Use when you need to programmatically instantiate a new repo under your organization or user.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Create Docker Hub Webhook
Tool to create a webhook on a Docker Hub repository. Use after determining repository details.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Delete Repository Image
Tool to delete a specific image within a Docker Hub repository. Use when you have confirmed the namespace, repository, and image ID to remove.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Delete Docker Hub Organization
Tool to delete a specific Docker Hub organization. Use when you need to permanently remove an organization. Deletion is irreversible.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Delete Docker Hub Repository
Tool to delete a specific Docker Hub repository. Use when you need to permanently remove a repository. Deletion is irreversible.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Delete Repository Tag
Tool to delete a specific tag from a Docker Hub repository. Use after confirming the tag to remove.
Connect any two apps with Notis in the middle.
Slack and Docker hub, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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