A few small v4 fixes (#2153)

* remove unused env vars

* actually use ALERT_REPLY_TO_EMAIL for alerts (non-breaking)

* increase fallback branch limit to 100M

* more unused env vars and example

* hide usage page when self-hosted

* fix for init flow

* set default or concurrency to 300 to match 100 on env

* fail fast when registry env vars are empty strings

.env.example

@@ -12,7 +12,6 @@ APP_ENV=development
 APP_ORIGIN=http://localhost:3030
 ELECTRIC_ORIGIN=http://localhost:3060
 NODE_ENV=development
-V3_ENABLED=true
 
 # Redis is used for the v3 queuing and v2 concurrency control
 REDIS_HOST="localhost"
@@ -22,6 +21,9 @@ REDIS_TLS_DISABLED="true"
 DEV_OTEL_EXPORTER_OTLP_ENDPOINT="http://localhost:3030/otel"
 DEV_OTEL_BATCH_PROCESSING_ENABLED="0"
 
+# When the domain is set to `localhost` the CLI deploy command will only --load the image by default and not --push it
+DEPLOY_REGISTRY_HOST=localhost:5000
+
 # OPTIONAL VARIABLES
 # This is used for validating emails that are allowed to log in. Every email that do not match this regex will be rejected.
 # WHITELISTED_EMAILS="authorized@yahoo\.com|authorized@gmail\.com"
@@ -60,29 +62,11 @@ DEV_OTEL_BATCH_PROCESSING_ENABLED="0"
 # FROM_EMAIL=
 # REPLY_TO_EMAIL=
 
-# Remove the following line to enable logging telemetry traces to the console
-LOG_TELEMETRY="false"
-
 # CLOUD VARIABLES
 POSTHOG_PROJECT_KEY=
-PLAIN_API_KEY= 
-CLOUD_AIRTABLE_CLIENT_ID=
-CLOUD_AIRTABLE_CLIENT_SECRET=
-CLOUD_GITHUB_CLIENT_ID=
-CLOUD_GITHUB_CLIENT_SECRET=
-CLOUD_LINEAR_CLIENT_ID=
-CLOUD_LINEAR_CLIENT_SECRET=
-CLOUD_SLACK_APP_HOST=
-CLOUD_SLACK_CLIENT_ID=
-CLOUD_SLACK_CLIENT_SECRET= 
-
-# v3 variables
-PROVIDER_SECRET=provider-secret # generate the actual secret with `openssl rand -hex 32`
-COORDINATOR_SECRET=coordinator-secret # generate the actual secret with `openssl rand -hex 32`
 
 # DEPOT_ORG_ID=<Depot org id>
 # DEPOT_TOKEN=<Depot org token>
-DEPLOY_REGISTRY_HOST=localhost:5000 # This is the host that the deploy CLI will use to push images to the registry
 # DEV_OTEL_EXPORTER_OTLP_ENDPOINT="http://0.0.0.0:4318"
 # These are needed for the object store (for handling large payloads/outputs)
 # OBJECT_STORE_BASE_URL="https://{bucket}.{accountId}.r2.cloudflarestorage.com"
@@ -92,8 +76,5 @@ DEPLOY_REGISTRY_HOST=localhost:5000 # This is the host that the deploy CLI will
 
 # These control the server-side internal telemetry
 # INTERNAL_OTEL_TRACE_EXPORTER_URL=<URL to send traces to>
-# INTERNAL_OTEL_TRACE_EXPORTER_AUTH_HEADER_NAME=<Header name for the auth token>
-# INTERNAL_OTEL_TRACE_EXPORTER_AUTH_HEADER_VALUE=<Auth token value>
 # INTERNAL_OTEL_TRACE_LOGGING_ENABLED=1
-# INTERNAL_OTEL_TRACE_SAMPING_RATE=20 # this means 1/20 traces or 5% of traces will be sampled (sampled = recorded)
 # INTERNAL_OTEL_TRACE_INSTRUMENT_PRISMA_ENABLED=0,