Add workflow

.github/workflows/central-publish.yml

@@ -0,0 +1,65 @@
+name: Central Publish
+
+on:
+  workflow_dispatch:
+    inputs:
+      environment:
+        type: choice
+        description: Select environment
+        required: true
+        options:
+          - CENTRAL
+          - DEV CENTRAL
+          - STAGE CENTRAL
+
+jobs:
+  publish-release:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'ballerina-platform'
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Ballerina Build
+        uses: ballerina-platform/ballerina-action/@slbeta5
+        with:
+          args:
+            build --skip-tests
+
+      - name: Ballerina Pack
+        uses: ballerina-platform/ballerina-action/@slbeta5
+        with:
+          args:
+            pack
+
+      - name: Ballerina Central Push
+        if: ${{ github.event.inputs.environment == 'CENTRAL' }}
+        uses: ballerina-platform/ballerina-action/@slbeta5
+        env:
+          BALLERINA_DEV_CENTRAL: false
+          BALLERINA_STAGE_CENTRAL: false
+          BALLERINA_CENTRAL_ACCESS_TOKEN: ${{ secrets.BALLERINA_CENTRAL_ACCESS_TOKEN }}
+        with:
+          args:
+            push
+
+      - name: Ballerina Central Dev Push
+        if: ${{ github.event.inputs.environment == 'DEV CENTRAL' }}
+        uses: ballerina-platform/ballerina-action/@slbeta5
+        env:
+          BALLERINA_DEV_CENTRAL: true
+          BALLERINA_STAGE_CENTRAL: false
+          BALLERINA_CENTRAL_ACCESS_TOKEN: ${{ secrets.BALLERINA_CENTRAL_DEV_ACCESS_TOKEN }}
+        with:
+          args:
+            push
+
+      - name: Ballerina Central Stage Push
+        if: ${{ github.event.inputs.environment == 'STAGE CENTRAL' }}
+        uses: ballerina-platform/ballerina-action/@slbeta5
+        env:
+          BALLERINA_DEV_CENTRAL: false
+          BALLERINA_STAGE_CENTRAL: true
+          BALLERINA_CENTRAL_ACCESS_TOKEN: ${{ secrets.BALLERINA_CENTRAL_STAGE_ACCESS_TOKEN }}
+        with:
+          args:
+            push