Check available Docker Hub image variants from Slack
When deployment planning starts in Slack, Notis can list a repository's image variants to make the next decision easier.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
List Repository Images
Tool to list image variants for a specific Docker Hub repository. Use after specifying namespace and repository.
Why this helps
A deployment review can lose momentum when someone has to stop, locate the repository, and inspect its available variants.
- Provides a repository snapshot during deployment planning.
- Reduces friction before a handoff or release decision.
- Keeps the image review attached to the team's request.
Setup
Build it in a few focused steps.
- 1Connect Slack and Docker Hub to Notis once in the portal.
- 2Create an instruction to list image variants from the named Docker Hub repository when a channel message requests a deployment review.
- 3Select Channel Message Received and choose where Notis reports runs.
- 4Test with a real deployment review request for an accessible repository.
Questions about this workflow
Does this confirm that an image is deployable?
No. It lists variants for inspection; the team should use its normal release checks to decide readiness.
Can it respond to vague deployment messages?
Tell Notis to act only when the message identifies the repository and requests an image review.
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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