Free up space in runner before building Docker image.

Author: epaganon

.github/actions/cleanup-runner/action.yml

@@ -0,0 +1,31 @@
+# GitHub runners come preinstalled with a lot of software that
+# is not needed for this workflow. To increase available space
+# these packages are removed.
+# https://github.com/actions/runner-images/issues/2840
+
+# Copyright 2025 The MathWorks, Inc.
+
+name: Cleanup Runner
+description: This action removes unnecessary software from the GitHub runner to free up disk space.
+
+runs:
+  using: "composite"
+  steps:
+      - name: Cleanup
+        shell: bash
+        run: |
+          sudo rm -rf \
+            "$AGENT_TOOLSDIRECTORY" \
+            /opt/google/chrome \
+            /opt/microsoft/msedge \
+            /opt/microsoft/powershell \
+            /opt/pipx \
+            /usr/lib/mono \
+            /usr/local/julia* \
+            /usr/local/lib/android \
+            /usr/local/lib/node_modules \
+            /usr/local/share/chromium \
+            /usr/local/share/powershell \
+            /usr/share/dotnet \
+            /usr/share/swift
+          df -h /

.github/workflows/build-test-publish.yml

@@ -45,6 +45,9 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v4
 
+      - name: Cleanup runner
+        uses: ./.github/actions/cleanup-runner
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:

.github/workflows/from-matlab-docker-build-test.yml

@@ -43,6 +43,9 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v4
 
+      - name: Cleanup runner
+        uses: ./.github/actions/cleanup-runner
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 

.github/workflows/matlab-container-offline-install-build-test.yml

@@ -49,6 +49,9 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v4
 
+      - name: Cleanup runner
+        uses: ./.github/actions/cleanup-runner
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:

.github/workflows/matlab-installer-build-test.yml

@@ -47,6 +47,9 @@ jobs:
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
+    
+      - name: Cleanup runner
+        uses: ./.github/actions/cleanup-runner
 
       - name: Move matlab-install mock to right location
         run: |

.github/workflows/non-interactive-build-test.yml

@@ -45,6 +45,9 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v4
 
+      - name: Cleanup runner
+        uses: ./.github/actions/cleanup-runner
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with: