feat: Add Dockerfile that defines a load testing container

.github/workflows/push-load-test.yml

@@ -0,0 +1,61 @@
+name: Push Load Test
+
+on:
+  # Invoked via another workflow, value passed in by string
+  workflow_call:
+    inputs:
+      deployment-env:
+        description: "Environment to deploy to (dev-green or dev-blue only)"
+        required: true
+        type: string
+        options:
+          - dev-green
+          - dev-blue
+    secrets:
+      aws-role-arn:
+        required: true
+        description: "AWS_ROLE_ARN value"
+      aws-account-id:
+        required: true
+        description: "TID_AWS_ACCOUNT_ID value"
+
+concurrency:
+  group: deploy-load-test-${{ inputs.deployment-env }}
+  cancel-in-progress: true
+
+jobs:
+  check:
+    name: Check for changes in load test setup
+    runs-on: ubuntu-latest
+    needs: validate
+    outputs:
+      changed: ${{ steps.changes.outputs.load_test == 'true' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - uses: dorny/paths-filter@v4
+        id: changes
+        with:
+          filters: |
+            load_test:
+              - 'deploy/load_test/**'
+              - 'integration/load_tests/**'
+
+  push:
+    name: Deploy new version
+    runs-on: ubuntu-latest
+    needs: check
+    if: ${{ needs.check.outputs.changed }}
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Build, tag, and push image to Amazon ECR
+        id: ecr
+        uses: mbta/actions/build-push-ecr@v2
+        with:
+          docker-repo: "${{ secrets.aws-account-id || secrets.TID_AWS_ACCOUNT_ID }}.dkr.ecr.us-east-1.amazonaws.com/dotcom-load-tests"
+          dockerfile-path: "-f ./deploy/load_test/Dockerfile ."
+          role-to-assume: ${{ secrets.aws-role-arn || secrets.AWS_ROLE_ARN }}

.github/workflows/use-deploy-ecs.yml

@@ -179,3 +179,11 @@ jobs:
     secrets:
       aws-account-id: ${{ secrets.aws-account-id }}
       aws-role-arn: ${{ secrets.aws-role-arn }}
+  load-test:
+    uses: ./.github/workflows/push-load-test.yml
+    if: ${{ inputs.deployment-env == 'dev-green' || inputs.deployment-env == 'dev-blue' }}
+    with:
+      deployment-env: ${{ inputs.deployment-env }}
+    secrets:
+      aws-account-id: ${{ secrets.aws-account-id }}
+      aws-role-arn: ${{ secrets.aws-role-arn }}

deploy/load_test/Dockerfile

@@ -0,0 +1,10 @@
+FROM debian:trixie-20260223-slim
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y curl git make build-essential inotify-tools nodejs npm
+
+RUN npm install -g artillery@2.0.33
+COPY ../../integration/load_tests/homepage-heavy-load.yml ./test.yml
+
+CMD npx artillery run -e ${ENVIRONMENT} ./test.yml

integration/load_tests/homepage-heavy-load.yml

@@ -8,10 +8,10 @@ config:
       duration: 300
       arrivalRate: 100
   environments:
-    green:
-      target: "http://dev-green.mbtace.com"
-    blue:
-      target: "http://dev-blue.mbtace.com"
+    dev-green:
+      target: "https://dev-green.mbtace.com"
+    dev-blue:
+      target: "https://dev-blue.mbtace.com"
 scenarios:
   - name: "Stress test single page"
     flow:

integration/load_tests/homepage-light-load.yml

@@ -11,10 +11,10 @@ config:
       duration: 60
       arrivalRate: 3
   environments:
-    green:
-      target: "http://dev-green.mbtace.com"
-    blue:
-      target: "http://dev-blue.mbtace.com"
+    dev-green:
+      target: "https://dev-green.mbtace.com"
+    dev-blue:
+      target: "https://dev-blue.mbtace.com"
 scenarios:
   - name: "Stress test single page"
     flow: