Add GHA from pgxn

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644 (file)
index 0000000..a71c73b
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,18 @@
+name: CI
+on:
+  push:
+    branches: ['*']
+  pull_request:
+    branches: ['*']
+jobs:
+  build:
+    strategy:
+      matrix:
+        pg: [14, 12, 11, 10, 9.6]
+    name: 🐘 PostgreSQL ${{ matrix.pg }}
+    runs-on: ubuntu-latest
+    container: pgxn/pgxn-tools
+    steps:
+      - run: pg-start ${{ matrix.pg }}
+      - uses: actions/checkout@v2
+      - run: pg-build-test