Create ~/.bigqueryrc without GCLOUD_SERVICE_KEY (#112)

.bigqueryrc

@@ -0,0 +1,9 @@
+--dataset_id=telemetry
+[mk]
+--use_legacy_sql=false
+[query]
+--use_legacy_sql=false
+--replace=true
+--max_rows=0
+[update]
+--use_legacy_sql=false

Dockerfile

@@ -13,5 +13,6 @@ COPY --from=google/cloud-sdk:alpine /google-cloud-sdk /google-cloud-sdk
 ENV PATH /google-cloud-sdk/bin:$PATH
 COPY --from=0 /usr/local /usr/local
 WORKDIR /app
+COPY .bigqueryrc /root/
 COPY . .
 ENTRYPOINT ["/app/script/entrypoint"]

script/entrypoint

@@ -9,22 +9,12 @@ if [ -n "$GCLOUD_SERVICE_KEY" ]; then
     # See https://cloud.google.com/docs/authentication/production
     export GOOGLE_APPLICATION_CREDENTIALS="${GOOGLE_APPLICATION_CREDENTIALS:-/tmp/gcp.json}"
     echo "$GCLOUD_SERVICE_KEY" > "$GOOGLE_APPLICATION_CREDENTIALS"
-    if which -s gcloud; then
-        gcloud --quiet auth activate-service-account --key-file "$GOOGLE_APPLICATION_CREDENTIALS"
-        python -W ignore -c 'import google.auth; print("project = ", google.auth.default()[1])' >> ~/.config/gcloud/configurations/config_default
-        cat > ~/.bigqueryrc << EOF
---project_id=$(gcloud config get-value project)
---dataset_id=telemetry
-[mk]
---use_legacy_sql=false
-[query]
---use_legacy_sql=false
---replace=true
---max_rows=0
-[update]
---use_legacy_sql=false
-EOF
-    fi
+fi
+
+if [ -n "$GOOGLE_APPLICATION_CREDENTIALS" ] && which gcloud > /dev/null; then
+    gcloud --quiet auth activate-service-account --key-file "$GOOGLE_APPLICATION_CREDENTIALS"
+    python -W ignore -c 'import google.auth; print("project = ", google.auth.default()[1])' >> ~/.config/gcloud/configurations/config_default
+    sed "1i--project_id=$(gcloud config get-value project)" -i ~/.bigqueryrc
 fi
 
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