Set Metrics configuration using ldlfags (#1088)

## Description

This sets up the metrics configs using `ldflags`. Keeping it in draft as I wanted to wait till https://github.com/alcionai/corso/pull/1052 is merged as that will affect how we use it in the CI. I have currently set the base branch to `release-ci` on GH, the branch for https://github.com/alcionai/corso/pull/1052 instead of `main` as the diff would make more sense that way.

## Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Test
- [x] 💻 CI/Deployment
- [ ] 🐹 Trivial/Minor

## Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* #1067

## Test Plan

<!-- How will this be tested prior to merging.-->
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

.github/workflows/ci.yml

@@ -242,6 +242,8 @@ jobs:
           workdir: src
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          RUDDERSTACK_CORSO_WRITE_KEY: ${{ secrets.RUDDERSTACK_CORSO_WRITE_KEY }}
+          RUDDERSTACK_CORSO_DATA_PLANE_URL: ${{ secrets.RUDDERSTACK_CORSO_DATA_PLANE_URL }}
 
       - name: Upload assets
         uses: actions/upload-artifact@v3
@@ -305,6 +307,7 @@ jobs:
 
       - name: Build Corso Binaries
         run: >
+          export CORSO_BUILD_LDFLAGS="-X 'github.com/alcionai/corso/src/internal/events.RudderStackWriteKey=${{ secrets.RUDDERSTACK_CORSO_WRITE_KEY }}' -X 'github.com/alcionai/corso/src/internal/events.RudderStackDataPlaneURL=${{ secrets.RUDDERSTACK_CORSO_DATA_PLANE_URL }}'"
           ./build.sh
           --platforms ${{ env.PLATFORMS }}
 

build/build.sh

@@ -63,7 +63,7 @@ do
     --env GOARCH=${GOARCH}                                                      \
     --entrypoint /usr/local/go/bin/go                                           \
     golang:${GOVER}                                                             \
-    build -o corso ${CORSO_BUILD_ARGS}
+    build -o corso ${CORSO_BUILD_ARGS} -ldflags "${CORSO_BUILD_LDFLAGS}"
   set +x
 
   mkdir -p ${PROJECT_ROOT}/bin/${GOOS}-${GOARCH}

src/.goreleaser.yaml

@@ -12,6 +12,10 @@ builds:
     ignore:
       - goos: windows
         goarch: arm64
+    ldflags:
+          - -X 'github.com/alcionai/corso/src/internal/events.RudderStackWriteKey={{.Env.RUDDERSTACK_CORSO_WRITE_KEY}}'
+          - -X 'github.com/alcionai/corso/src/internal/events.RudderStackDataPlaneURL={{.Env.RUDDERSTACK_CORSO_DATA_PLANE_URL}}'
+
 archives:
   - replacements:
       darwin: Darwin

src/internal/events/events.go

@@ -57,8 +57,8 @@ type Bus struct {
 }
 
 var (
-	WriteKey     string
+	RudderStackWriteKey     string
-	DataPlaneURL string
+	RudderStackDataPlaneURL string
 )
 
 func NewBus(s storage.Storage, tenID string, opts control.Options) Bus {
@@ -70,17 +70,17 @@ func NewBus(s storage.Storage, tenID string, opts control.Options) Bus {
 
 	envWK := os.Getenv("RUDDERSTACK_CORSO_WRITE_KEY")
 	if len(envWK) > 0 {
-		WriteKey = envWK
+		RudderStackWriteKey = envWK
 	}
 
 	envDPU := os.Getenv("RUDDERSTACK_CORSO_DATA_PLANE_URL")
 	if len(envDPU) > 0 {
-		DataPlaneURL = envDPU
+		RudderStackDataPlaneURL = envDPU
 	}
 
 	var client analytics.Client
-	if len(WriteKey) > 0 && len(DataPlaneURL) > 0 {
+	if len(RudderStackWriteKey) > 0 && len(RudderStackDataPlaneURL) > 0 {
-		client = analytics.New(WriteKey, DataPlaneURL)
+		client = analytics.New(RudderStackWriteKey, RudderStackDataPlaneURL)
 	}
 
 	return Bus{