Add self-hosted Actions.

Author: psftw

.github/workflows/ci.yml

@@ -5,6 +5,7 @@ on:
 
 jobs:
   ci:
+    if: github.repository == 'haskell/docker-haskell'
     timeout-minutes: 30
     runs-on: ubuntu-18.04
     strategy:
@@ -30,3 +31,36 @@ jobs:
         path: official-images
     - name: run official-images tests
       run: ./official-images/test/run.sh haskell:${{ matrix.ghc }}
+
+  ci-self-hosted:
+    if: github.repository == 'psftw/docker-haskell-private'
+    timeout-minutes: 20
+    runs-on: self-hosted
+    strategy:
+      fail-fast: false
+      matrix:
+        ghc: [8.6.5, 8.8.1, 8.8.2]
+        include:
+          - ghc: 8.6.5
+            ghc_minor: 8.6
+          - ghc: 8.8.1
+            ghc_minor: 8.8
+          - ghc: 8.8.2
+            ghc_minor: 8.8
+    steps:
+    - uses: actions/checkout@v2
+    - name: docker build [${{ matrix.ghc }}]
+      run: docker build --pull --build-arg GHC=${{ matrix.ghc }} -t haskell:${{ matrix.ghc }} ${{ matrix.ghc_minor }}
+    - name: check for cabal-cache
+      run: |
+        docker volume inspect cabal-cache-${{ matrix.ghc }} &> /dev/null || \
+        docker run -t --rm -v cabal-cache-${{ matrix.ghc }}:/root/.cabal haskell:${{ matrix.ghc }} cabal new-update
+    - name: cabal new-install
+      run: docker run -t --rm -v cabal-cache-${{ matrix.ghc }}:/root/.cabal haskell:${{ matrix.ghc }} cabal new-install --lib primitive
+    - name: wipe stack cache
+      run: docker volume rm stack-test-${{ matrix.ghc }}
+      continue-on-error: true
+    - name: stack new
+      run: docker run -t --rm -v stack-test-${{ matrix.ghc }}:/stack -w /stack haskell:${{ matrix.ghc }} stack --resolver ghc-${{ matrix.ghc }} new testproject --bare
+    - name: stack run
+      run: docker run -t --rm -v stack-test-${{ matrix.ghc }}:/stack -w /stack haskell:${{ matrix.ghc }} stack run