Kubebot

Kubebot is a Kubernetes chatbot for Slack.

This project is in active development and it's not ready for production yet.

Prerequisite

First, you’ll need a Kubernetes cluster. You can start with creating a Kubernetes cluster with Google Container Engine following the quickstart, or pick other solutions from here.

Setup

To run Kubebot on Slack, first you need to create a new bot user integration on Slack and get the token (See Slack bot users for more details).

Then you need to know the channel ids where you want to run the Kubebot. You can get them on https://slack.com/api/channels.list?token={REPLACE WITH YOUR TOKEN}

How to run it

Create a Secret

First, create a Kubernetes Secret to hold your sensitive information.

kubectl create secret generic kubebot --from-literal=token=<your_token_here> --from-literal=channel=<your_channel_id_here>

Create a kubebot Deployment

Open the kubebot-deployment.yaml file and modify the kubebot container environment variables to control things like who the kubebot will listen to, and what valid kubectl commands are allowed.

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: kubebot
  labels:
    component: kubebot
spec:
  replicas: 1
  template:
    metadata:
      labels:
        component: kubebot
    spec:
      containers:
      - name: kubebot
        image: harbur/kubebot:0.1.0
        imagePullPolicy: Always
        env:
        # Create a secret with your slack bot token and reference it here
        - name: KUBEBOT_SLACK_TOKEN
          valueFrom:
            secretKeyRef:
              name: kubebot
              key: token
        # Create a secret with your slack bot channel id and reference it here
        - name: KUBEBOT_SLACK_CHANNELS_IDS
          valueFrom:
            secretKeyRef:
              name: kubebot
              key: channel
        # Alternatively, use this instead if you don't need to put channel ids in a secret; use a space as a separator
        # - name: KUBEBOT_SLACK_CHANNELS_IDS
        #   value: "1234 4321"
        # Specify slack admins that kubebot should listen to; use a space as a separator
        - name: KUBEBOT_SLACK_ADMINS_NICKNAMES
          value: "user1 user2"
        # Specify valid kubectl commands that kubebot should support; use a space as a separator
        - name: KUBEBOT_SLACK_VALID_COMMANDS
          value: "get describe scale"

Then, create the kubebot Deployment that consumes the secret you just created, and that’s it!

$ kubectl create -f kubebot-deployment.yaml
deployment "kubebot" created

Alternative: Running the binary

It is possible to run the binary locally or in a server. First you need to download and compile this project using the Go compiler:

mkdir -p $GOPATH/github.com/harbur/kubebot
cd $_
git clone git@github.com:harbur/kubebot.git
go install -v github.com/harbur/kubebot

Then set up the following environment variables:

# use the token you generated in the setup
KUBEBOT_SLACK_TOKEN="replacewithyourtoken"

# use as many channels ids you want; use a space as a separator
KUBEBOT_SLACK_CHANNELS_IDS="1234 4321"

# use as many admin nicknames as you want; use a space as separator
KUBEBOT_SLACK_ADMINS_NICKNAMES="nickname1 nickname2"

# set which kubectl commands the admins will be able to run
KUBEBOT_SLACK_VALID_COMMANDS="get describe logs explain"

After the setup, you can run the binary:

kubebot

Interact with the bot

Now, start asking the bot to run those kubectl commands for you.