feature/split-indexing-into-multi-step-workflow (#108)

* Fan out index upload to single file chunks (#1)

* Install branch of cdp-backend

* Fast fail false

* Fix fast fail indent

* Working event index

* Upgrade frontend

Author: Jackson Maxfield Brown

{{ cookiecutter.hosting_github_repo_name }}/.github/workflows/event-index-pipeline.yml

@@ -1,9 +1,8 @@
 name: Event Index
 
 on:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
+
   schedule:
     # <minute [0,59]> <hour [0,23]> <day of the month [1,31]> <month of the year [1,12]> <day of the week [0,6]>
     # https://pubs.opengroup.org/onlinepubs/9699919799/utilities/crontab.html#tag_20_25_07
@@ -12,39 +11,128 @@ on:
     # We offset from the hour and half hour to go easy on the servers :)
     - cron: '26 3 * * 4'
 
+# We doubly fan out
+# We first generate indexs for uni, bi, and trigrams with a matrix
+# Each index is split into chunks of 50,000 grams
+# Then we fan out by every chunk and upload
+{% raw %}
 jobs:
-  index-events:
+  generate-index-chunks:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        # We fan out on n-gram to make it possible to run on GitHub Actions
         n-gram: [1, 2, 3]
+      fail-fast: false
+
+    outputs:
+      ngram-1-chunks: ${{ steps.output-index-chunks.outputs.ngram-1-chunks }}
+      ngram-2-chunks: ${{ steps.output-index-chunks.outputs.ngram-2-chunks }}
+      ngram-3-chunks: ${{ steps.output-index-chunks.outputs.ngram-3-chunks }}
 
     steps:
+    # Setup Runner
     - uses: actions/checkout@v2
     - uses: actions/setup-python@v1
       with:
         python-version: 3.9
 
+    # Setup GCloud / Creds
     - name: Setup gcloud
       uses: google-github-actions/setup-gcloud@v0
       with:
-        project_id: {{ cookiecutter.infrastructure_slug }}
-        service_account_key: {% raw %}${{ secrets.GOOGLE_CREDENTIALS }}{% endraw %}
+        project_id: {% endraw %}{{ cookiecutter.infrastructure_slug }}{% raw %}
+        service_account_key: ${{ secrets.GOOGLE_CREDENTIALS }}
         export_default_credentials: true
+    - name: Dump Credentials to JSON
+      run: |
+        echo "$GOOGLE_CREDS" > python/google-creds.json
+      env:
+        GOOGLE_CREDS: ${{ secrets.GOOGLE_CREDENTIALS }}
 
+    # Installs
     - name: Install Python Dependencies
       run: |
         cd python/
         pip install .
+
+    # Index
+    - name: Index Events ${{ matrix.n-gram }}-grams
+      run: |
+        cd python/
+        run_cdp_event_index_generation event-index-config.json \
+          --n_grams ${{ matrix.n-gram }} \
+          --store_remote \
+          --parallel
+
+    # Store generated files to step output
+    - name: Store Index Fileset to Outputs
+      id: output-index-chunks
+      run: |
+        cd python/index/
+        output=$(python -c 'import os, json; print(json.dumps(os.listdir(".")))')
+        echo "::set-output name=ngram-${{ matrix.n-gram }}-chunks::$output"
+
+  combine-matrix-ngram-chunks:
+    needs: generate-index-chunks
+    runs-on: ubuntu-latest
+    outputs:
+      all-chunks: ${{ steps.combine-index-chunks.outputs.combined-chunks }}
+
+    steps:
+    # Setup Runner
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v1
+      with:
+        python-version: 3.9
+
+    # Process
+    - name: Combine Chunks
+      id: 'combine-index-chunks'
+      run: |
+        echo 'print(${{ needs.generate-index-chunks.outputs.ngram-1-chunks }} + ${{ needs.generate-index-chunks.outputs.ngram-2-chunks }} + ${{ needs.generate-index-chunks.outputs.ngram-3-chunks }})' >> print-combined-chunks.py
+        output=$(python print-combined-chunks.py)
+        echo "::set-output name=combined-chunks::$output"
+
+  upload-index-chunks:
+    needs: combine-matrix-ngram-chunks
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 6
+      matrix: 
+        filename: ${{ fromJson(needs.combine-matrix-ngram-chunks.outputs.all-chunks) }}
+      fail-fast: false
+    
+    steps:
+    # Setup Runner
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v1
+      with:
+        python-version: 3.9
+
+    # Setup GCloud / Creds
+    - name: Setup gcloud
+      uses: google-github-actions/setup-gcloud@v0
+      with:
+        project_id: {% endraw $}{{ cookiecutter.infrastructure_slug }}{$ raw $}
+        service_account_key: ${{ secrets.GOOGLE_CREDENTIALS }}
+        export_default_credentials: true
     - name: Dump Credentials to JSON
       run: |
         echo "$GOOGLE_CREDS" > python/google-creds.json
       env:
-        GOOGLE_CREDS: {% raw %}${{ secrets.GOOGLE_CREDENTIALS }}{% endraw %}
-    - name: Index Events {% raw %}${{ matrix.n-gram }}{% endraw %}-grams
+        GOOGLE_CREDS: ${{ secrets.GOOGLE_CREDENTIALS }}
+
+    # Installs
+    - name: Install Python Dependencies
       run: |
         cd python/
-        {% raw %}run_cdp_event_index event-index-config.json \
-          --n_grams ${{ matrix.n-gram }} \
-          --parallel{% endraw %}
+        pip install .
+    
+    # Upload Index Chunk
+    - name: Process Upload
+      run: |
+        cd python/
+        process_cdp_event_index_chunk event-index-config.json \
+          ${{ matrix.filename }} \
+          --parallel
+{% endraw %}