Scan images workflow (kagent-dev/kagent)

The Scan images workflow from kagent-dev/kagent, explained and optimized by Latchkey.

CI health: C - fair

Point runs-on at Latchkey and get run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.

Grade your own workflow free or run it on Latchkey →

Source: kagent-dev/kagent.github/workflows/image-scan.yamlLicense Apache-2.0View source

What it does

This is the Scan images workflow from the kagent-dev/kagent repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: Scan images

on:
  # Trigger once a week on the main branch
  schedule:
  - cron: '0 0 * * 0' # Every Monday at midnight UTC

  # Trigger the workflow on push to the main branch
  push:
    branches: [ main ]
    paths-ignore:
      - '**/*.md'

  workflow_dispatch:

env:
  # Cache key components for better organization
  CACHE_KEY_PREFIX: kagent-v2
  BRANCH_CACHE_KEY: ${{ github.head_ref || github.ref_name }}
  # Consistent builder configuration
  BUILDX_BUILDER_NAME: kagent-builder-v0.23.0
  BUILDX_VERSION: v0.23.0
jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        include:
          - build_target: controller
            image_name: controller
            tag_suffix: ""
          - build_target: ui
            image_name: ui
            tag_suffix: ""
          - build_target: app
            image_name: app
            tag_suffix: ""
          - build_target: skills-init
            image_name: skills-init
            tag_suffix: ""
          - build_target: golang-adk
            image_name: golang-adk
            tag_suffix: ""
          - build_target: golang-adk-full
            image_name: golang-adk
            tag_suffix: "-full"
    runs-on: ubuntu-latest
    services:
      registry:
        image: registry:2
        ports:
          - 5001:5000
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4
        with:
          name: ${{ env.BUILDX_BUILDER_NAME }}
          version: ${{ env.BUILDX_VERSION }}
          platforms: linux/amd64,linux/arm64
          use: 'true'
          driver-opts: network=host
      - name: Set version
        id: vars
        run: echo "version=v0.0.0-$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
      - name: Print version
        run: |
          echo "Version: ${{ steps.vars.outputs.version }}"
      - name: Run make build
        env:
          DOCKER_BUILDER: "docker buildx build"
          DOCKER_BUILD_ARGS: >-
            --cache-from=type=gha
            --cache-to=type=gha,mode=max
            --build-arg=VERSION=${{ steps.vars.outputs.version }}
            --push
        run: |
          export VERSION=${{ steps.vars.outputs.version }}
          make build-${{ matrix.build_target }}
        working-directory: ./
      - name: Image vulnerability scanner
        uses: aquasecurity/trivy-action@v0.36.0
        with:
          image-ref: localhost:5001/kagent-dev/kagent/${{ matrix.image_name }}:${{ steps.vars.outputs.version }}${{ matrix.tag_suffix }}
          severity: 'CRITICAL,HIGH'
          ignore-unfixed: true
          exit-code: '1'

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: Scan images
 
on:
  # Trigger once a week on the main branch
  schedule:
  - cron: '0 0 * * 0' # Every Monday at midnight UTC
 
  # Trigger the workflow on push to the main branch
  push:
    branches: [ main ]
    paths-ignore:
      - '**/*.md'
 
  workflow_dispatch:
 
env:
  # Cache key components for better organization
  CACHE_KEY_PREFIX: kagent-v2
  BRANCH_CACHE_KEY: ${{ github.head_ref || github.ref_name }}
  # Consistent builder configuration
  BUILDX_BUILDER_NAME: kagent-builder-v0.23.0
  BUILDX_VERSION: v0.23.0
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    strategy:
      fail-fast: false
      matrix:
        include:
          - build_target: controller
            image_name: controller
            tag_suffix: ""
          - build_target: ui
            image_name: ui
            tag_suffix: ""
          - build_target: app
            image_name: app
            tag_suffix: ""
          - build_target: skills-init
            image_name: skills-init
            tag_suffix: ""
          - build_target: golang-adk
            image_name: golang-adk
            tag_suffix: ""
          - build_target: golang-adk-full
            image_name: golang-adk
            tag_suffix: "-full"
    runs-on: latchkey-small
    services:
      registry:
        image: registry:2
        ports:
          - 5001:5000
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4
        with:
          name: ${{ env.BUILDX_BUILDER_NAME }}
          version: ${{ env.BUILDX_VERSION }}
          platforms: linux/amd64,linux/arm64
          use: 'true'
          driver-opts: network=host
      - name: Set version
        id: vars
        run: echo "version=v0.0.0-$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
      - name: Print version
        run: |
          echo "Version: ${{ steps.vars.outputs.version }}"
      - name: Run make build
        env:
          DOCKER_BUILDER: "docker buildx build"
          DOCKER_BUILD_ARGS: >-
            --cache-from=type=gha
            --cache-to=type=gha,mode=max
            --build-arg=VERSION=${{ steps.vars.outputs.version }}
            --push
        run: |
          export VERSION=${{ steps.vars.outputs.version }}
          make build-${{ matrix.build_target }}
        working-directory: ./
      - name: Image vulnerability scanner
        uses: aquasecurity/trivy-action@v0.36.0
        with:
          image-ref: localhost:5001/kagent-dev/kagent/${{ matrix.image_name }}:${{ steps.vars.outputs.version }}${{ matrix.tag_suffix }}
          severity: 'CRITICAL,HIGH'
          ignore-unfixed: true
          exit-code: '1'

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Add a job timeout so a hung step cannot burn hours of runner time.

3 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

Container pulls and builds

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout docker/setup-qemu-action docker/setup-buildx-action aquasecurity/trivy-action