ci: postgres unittests configurations (#28952)

Co-authored-by: Ankush Menat <ankush@frappe.io>

.github/workflows/server-tests-mariadb.yml

@@ -0,0 +1,112 @@
+name: Server (Mariadb)
+
+on:
+  pull_request:
+    paths-ignore:
+      - '**.js'
+      - '**.md'
+      - '**.html'
+  workflow_dispatch:
+  push:
+    branches: [ develop ]
+    paths-ignore:
+      - '**.js'
+      - '**.md'
+
+concurrency:
+  group: server-mariadb-develop-${{ github.event.number }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+
+    strategy:
+      fail-fast: false
+
+      matrix:
+        container: [1, 2, 3]
+
+    name: Python Unit Tests
+
+    services:
+      mysql:
+        image: mariadb:10.3
+        env:
+          MYSQL_ALLOW_EMPTY_PASSWORD: YES
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=5s --health-timeout=2s --health-retries=3
+
+    steps:
+      - name: Clone
+        uses: actions/checkout@v2
+
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Setup Node
+        uses: actions/setup-node@v2
+        with:
+          node-version: 14
+          check-latest: true
+
+      - name: Add to Hosts
+        run: echo "127.0.0.1 test_site" | sudo tee -a /etc/hosts
+
+      - name: Cache pip
+        uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+            ${{ runner.os }}-
+
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+
+      - name: Get yarn cache directory path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(yarn cache dir)"
+
+      - uses: actions/cache@v2
+        id: yarn-cache
+        with:
+          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-
+
+      - name: Install
+        run: bash ${GITHUB_WORKSPACE}/.github/helper/install.sh
+        env:
+          DB: mariadb
+          TYPE: server
+
+      - name: Run Tests
+        run: cd ~/frappe-bench/ && bench --site test_site run-parallel-tests --app erpnext --use-orchestrator --with-coverage
+        env:
+          TYPE: server
+          CI_BUILD_ID: ${{ github.run_id }}
+          ORCHESTRATOR_URL: http://test-orchestrator.frappe.io
+
+      - name: Upload coverage data
+        uses: codecov/codecov-action@v2
+        with:
+          name: MariaDB
+          fail_ci_if_error: true
+          files: /home/runner/frappe-bench/sites/coverage.xml
+          verbose: true