Update Package Integration Docs for Pipelines

docs/developer/package-integration/package-integration-flux.md

 # Big Bang Package: Flux Integration
 
+Following the steps in this guide will result in the `integration` job being run for Third Party and Sandbox pipelines.
+
+If there's a need to disable this job, add `SKIP INTEGRATION` to the title of the Merge Request.
+
 Big Bang uses a continuous deployment tool, [Flux](https://fluxcd.io/) to deploy packages using Helm charts sourced from Git ([GitOps](https://www.weave.works/technologies/gitops/)).  This document will cover how to integrate a Helm chart, from a mission application or other package, into the Flux pattern required by Big Bang.  Once complete, you will be able to deploy your package with Big Bang.
 
 ## Prerequisites
@@ -266,7 +270,7 @@ Use the Big Bang default values to make sure our Helm templates don't have any s
 
 To validate that the Helm chart is working, perform the following steps to deploy your package.  This assumes you already have a Kubernetes cluster running.
 
-1. Disable all default packages in Big Bang by adding the following to `bigbang/values.yaml`
+1. Disable all packages that are enabled by default in Big Bang by adding the following to `bigbang/values.yaml` 
 
    ```yaml
    # Network Policies
@@ -306,6 +310,25 @@ To validate that the Helm chart is working, perform the following steps to deplo
      enabled: false
    ```
 
+1. To enable Big Bang packages that are disabled by default, add the appropriate code block for the Big Bang package from the Big Bang helm chart [values file](https://repo1.dso.mil/platform-one/big-bang/bigbang/-/blob/master/chart/values.yaml).
+      
+      - For example, if you want to test a package's functionality with MinIO, you would add this block from the Big Bang helm chart values file to the package repo's `bigbang/values.yaml` file
+
+      ```yaml
+      addons:
+        minioOperator:
+          enabled: true
+          
+        minio:
+          enabled: true
+      ```
+      
+      - This would deploy MinIO in the `integration` stage with default configurations 
+      
+      - Any values that are present in the Big Bang helm chart values file can be configured here also. The pipeline merges these two files into a single values file before deployment, so the package repo's `bigbang/values.yaml` provides a way to configure a Third Party or Sandbox package along with Big Bang package configurations in a single values file. 
+
+      - A `tests/test-values.yaml` in a package repo can be used as override values for the pipeline. It allows pipeline-specific configurations so that the package's `chart/values.yaml` doesn't have to be changed.
+
 1. Install flux using the [instructions from Big Bang](https://repo1.dso.mil/platform-one/big-bang/bigbang/-/blob/1.19.0/docs/guides/deployment_scenarios/quickstart.md#step-8-install-flux).
 1. Install the package using the bigbang Helm chart
 

docs/developer/package-integration/package-integration-pipeline.md

@@ -13,7 +13,11 @@ Big Bang contains and uses a continuous deployment tool to deploy packages using
 
 ## Package Pipeline
 
-Pipelines provide rapid feedback to changes in our Helm chart as we develop and should be put in place as early as possible.  Big Bang has a [generic pipeline](https://repo1.dso.mil/platform-one/big-bang/pipeline-templates/pipeline-templates/-/blob/master/templates/package-tests.yml) that we can reuse for packages.
+Pipelines provide rapid feedback to changes in our Helm chart as we develop and should be put in place as early as possible.  Big Bang has a few different pipelines that can be used for packages.
+
+- [bigbang-package](https://repo1.dso.mil/platform-one/big-bang/pipeline-templates/pipeline-templates/-/blob/master/pipelines/bigbang-package.yaml)
+- [sandbox](https://repo1.dso.mil/platform-one/big-bang/pipeline-templates/pipeline-templates/-/blob/master/pipelines/sandbox.yaml)
+- [third-party](https://repo1.dso.mil/platform-one/big-bang/pipeline-templates/pipeline-templates/-/blob/master/pipelines/third-party.yaml)
 
 1. The pipeline **requires** that all images are stored in either Iron Bank (`registry1.dso.mil`) or Repo1 (`registry.dso.mil`).  In some cases, you may be able to substitute images already in Iron Bank for the ones in the Helm chart.  For example, images for `curl`, `kubectl` or `jq` can use `registry1.dso.mil/ironbank/big-bang/base`.  If you have not already submitted your containers to Iron Bank, [start the process](https://repo1.dso.mil/dsop/dccscr/-/blob/master/README.md).  While you are working your way to Iron Bank approval, you can temporarily put the images in `registry.dso.mil` for development by doing the following:
 
@@ -87,6 +91,18 @@ Pipelines provide rapid feedback to changes in our Helm chart as we develop and
 
 1. Troubleshoot and fix any failures from the pipeline.
 
-## Big Bang Pipeline
+## Big Bang Integration for Third-Party and Sandbox Packages
+
+Big Bang uses a continuous deployment tool, [Flux](https://fluxcd.io) to deploy packages using Helm charts sourced from Git ([GitOps](https://www.weave.works/technologies/gitops/)).
+
+Third-party and sandbox pipelines both have an `integration` stage that will deploy and test a package as a Big Bang compatible package. 
+
+Examples of components that contribute to a package being "Big Bang compatible":
+
+- Configuring a package to be deployed via Flux custom resource definitions ([GitRepositories](https://fluxcd.io/docs/components/source/gitrepositories/) and [HelmReleases](https://fluxcd.io/docs/components/helm/helmreleases/))
+
+- Service mesh components ([Automatic Istio sidecar injection](https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#automatic-sidecar-injection) and [Istio VirtualService](https://istio.io/latest/docs/reference/config/networking/virtual-service/))
+ 
+This stage also allows any Big Bang Core or Addon packages to be deployed alongside a third-party or sandbox package for testing compatibility/functionality.
 
-TBD
+To set this up in a package repo, see the guide [here](https://repo1.dso.mil/platform-one/big-bang/bigbang/-/blob/master/docs/developer/package-integration/package-integration-flux.md).