refactor(self-hosting): forward every setting, drop dead config (#3047)

deploy/self-hosting/.env.example

@@ -1,6 +1,8 @@
-# Every variable docker-compose.yml reads, uncommented when it has no default and
-# commented with its default when it has one. Compose expands top to bottom, so a
-# line using ${...} must sit below every name it reads.
+# Every variable docker-compose.yml reads. A value an install must set is
+# uncommented. A commented line shows the default, or an example where its comment
+# says so, and nothing after = means the service decides. An empty value keeps the
+# default too. Compose expands top to bottom, so a line using ${...} must sit below
+# every name it reads.
 
 FLUXER_DOMAIN=chat.example.com
 FLUXER_PUBLIC_SCHEME=https
@@ -68,7 +70,9 @@ FLUXER_IMAGE_TAG=v1
 POSTGRES_PASSWORD=CHANGE_ME
 MEILI_MASTER_KEY=CHANGE_ME
 # Set these to run Postgres or the object store outside the stack. Backing up a
-# store you moved out is yours to arrange, and an upgrade skips it.
+# store you moved out is yours to arrange. An upgrade dumps the bundled postgres
+# service and skips the dump only when the stack defines none. The values below
+# are examples.
 #FLUXER_POSTGRES_HOST=db.example.com
 #FLUXER_POSTGRES_PORT=5432
 #FLUXER_POSTGRES_DATABASE=fluxer
@@ -78,6 +82,7 @@ MEILI_MASTER_KEY=CHANGE_ME
 #FLUXER_S3_PUBLIC_ENDPOINT=https://cdn.example.com
 #FLUXER_S3_REGION=eu-central-1
 #FLUXER_S3_FORCE_PATH_STYLE=false
+
 # Bucket names. The bundled store creates these. An outside store needs them to
 # exist already.
 #FLUXER_S3_BUCKET_CDN=fluxer
@@ -90,34 +95,89 @@ MEILI_MASTER_KEY=CHANGE_ME
 # Needs Compose 2.24.4 or newer.
 #COMPOSE_FILE=docker-compose.yml:external-object-store.compose.yml
 
+# A full connection URL wins over the host, port and database above. The URL is an
+# example. The CA is the PEM text of the certificate, with \n for line breaks.
+#FLUXER_POSTGRES_URL=postgres://fluxer:[email protected]:5432/fluxer
+#FLUXER_POSTGRES_SSL_CA=
+# The Postgres table that holds the key-value store.
+#FLUXER_POSTGRES_KV_TABLE=fluxer_kv
+# media-proxy reads through these when the store serves reads from another
+# address or bucket.
+#FLUXER_S3_READ_ENDPOINT=
+#FLUXER_S3_READ_BUCKET=
+#FLUXER_S3_READ_BUCKET_STYLE=
+# A temporary S3 session token, read by media-proxy only.
+#FLUXER_S3_SESSION_TOKEN=
+# The bundled store refuses unsigned reads. Set false only for a public-read bucket.
+#FLUXER_S3_READ_SIGNED=true
+
 # The other bundled services, pointed elsewhere. Removing a service from the
 # stack belongs in an override file, since an upgrade replaces docker-compose.yml.
+# The URLs below are examples.
 #FLUXER_KV_URL=redis://cache.example.com:6379/0
 #FLUXER_NATS_URL=nats://mq.example.com:4222
 #FLUXER_NATS_JETSTREAM_URL=nats://mq.example.com:4222
 #FLUXER_SVC_NATS_URL=nats://mq.example.com:4222
 #FLUXER_SEARCH_URL=https://search.example.com
 #FLUXER_LIVEKIT_INTERNAL_URL=http://livekit.example.com:7880
+# How the stack talks to those services.
+#FLUXER_KV_MODE=standalone
+#FLUXER_SEARCH_ENGINE=meilisearch
+#FLUXER_SEARCH_USERNAME=
+#FLUXER_SEARCH_PASSWORD=
+#FLUXER_SEARCH_TLS_REJECT_UNAUTHORIZED=true
 
 # Voice off. The livekit service still runs until an override removes it.
 #FLUXER_LIVEKIT_ENABLED=false
 
 # Optional systems, each off unless configured.
 #FLUXER_STRIPE_ENABLED=false
-#FLUXER_NCMEC_ENABLED=false
-#FLUXER_CLAMAV_ENABLED=false
+#FLUXER_STRIPE_SECRET_KEY=
+#FLUXER_STRIPE_WEBHOOK_SECRET=
+# Stripe prices as one JSON object. The admin dashboard can set them instead.
+#FLUXER_STRIPE_PRICES={}
+#FLUXER_STRIPE_LEGACY_PRICES={}
+#FLUXER_API_DONATION_PROXY_KEY=
+#FLUXER_VISIONARIES_GUILD_ID=
+#FLUXER_VISIONARIES_GUILD_VISIONARY_ROLE_ID=
+
+# NCMEC CyberTipline reporting, off by default. All four values are required
+# once it is on. The values below are examples.
+#FLUXER_NCMEC_ENABLED=true
+#FLUXER_NCMEC_BASE_URL=https://report.cybertip.org/ispws
+#FLUXER_NCMEC_USERNAME=
+#FLUXER_NCMEC_PASSWORD=
+#[email protected]
+
+# Upload virus scanning, off by default. No ClamAV container ships, so point
+# this at your own. The values below are examples.
+#FLUXER_CLAMAV_ENABLED=true
+#FLUXER_CLAMAV_HOST=clamav
+#FLUXER_CLAMAV_PORT=3310
+#FLUXER_CLAMAV_FAIL_OPEN=false
 
 # Outside lookups, off unless turned on. The breached password check asks
 # api.pwnedpasswords.com.
-#FLUXER_BREACHED_PASSWORD_CHECK_ENABLED=true
+#FLUXER_BREACHED_PASSWORD_CHECK_ENABLED=false
+#FLUXER_BLOCKLIST_FEEDS_ENABLED=false
+#FLUXER_IPINFO_API_KEY=
+# A local path, or an s3:// URL read with the S3 credentials of this file.
+#FLUXER_GEOIP_DB_PATH=
 
-# The client address. Name the header your proxy actually writes, and turn the
-# trust off when nothing sits in front.
-#FLUXER_CLIENT_IP_HEADER_NAME=cf-connecting-ip
+# The client address. The edge sets X-Forwarded-For on every hop, so keep the
+# trust on and the default header. Turning the trust off makes the api refuse
+# every request outside its exempt routes with a 403.
+#FLUXER_CLIENT_IP_HEADER_NAME=x-forwarded-for
 #FLUXER_TRUST_CLIENT_IP_HEADER=true
 
-# How much the services write. trace, debug, info, warn, error or fatal.
-#LOG_LEVEL=debug
+# How much the services write. LOG_LEVEL covers the api and worker and takes trace,
+# debug, info, warn, error or fatal. RUST_LOG covers the Rust services and takes
+# an EnvFilter such as debug. The gateway takes an Erlang level such as notice,
+# and LOGGER_LEVEL beats FLUXER_GATEWAY_LOGGER_LEVEL.
+#LOG_LEVEL=info
+#RUST_LOG=info
+#FLUXER_GATEWAY_LOGGER_LEVEL=info
+#LOGGER_LEVEL=
 
 FLUXER_S3_ACCESS_KEY=fluxer
 FLUXER_S3_SECRET_KEY=CHANGE_ME
@@ -142,7 +202,7 @@ FLUXER_VAPID_PRIVATE_KEY=CHANGE_ME
 # exist.
 #[email protected]
 
-# Passkeys follow FLUXER_DOMAIN. Set these only if browsers use another host.
+# The passkey RP ID defaults to FLUXER_DOMAIN, whatever FLUXER_PUBLIC_ORIGIN says.
 # Changing the RP ID invalidates every passkey registered against the old value.
 #FLUXER_PASSKEY_RP_ID=chat.example.com
 #FLUXER_PASSKEY_RP_NAME=Fluxer
@@ -153,6 +213,29 @@ FLUXER_VAPID_PRIVATE_KEY=CHANGE_ME
 #FLUXER_PUSH_SERVICE_QUEUE_CAPACITY=10000
 # Provider requests the push container sends at once, 1 to 65536.
 #FLUXER_PUSH_SERVICE_SEND_CONCURRENCY=256
+# The push container's provider addresses and relay hosts.
+#FLUXER_PUSH_SERVICE_APNS_BASE_URL=
+#FLUXER_PUSH_SERVICE_FCM_BASE_URL=https://fcm.googleapis.com
+#FLUXER_PUSH_SERVICE_MANAGED_RELAY_HOSTS=push.fluxer.com
+#FLUXER_PUSH_SERVICE_OWN_RELAY_HOSTS=
+#FLUXER_PUSH_SERVICE_RELAY_CONSENT_ACCEPTED=false
+
+# Direct mobile push through your own APNs and FCM credentials, off by default.
+#FLUXER_PUSH_APNS_ENABLED=false
+#FLUXER_PUSH_APNS_TEAM_ID=
+#FLUXER_PUSH_APNS_KEY_ID=
+#FLUXER_PUSH_APNS_PRIVATE_KEY=
+#FLUXER_PUSH_APNS_PRIVATE_KEY_PATH=
+#FLUXER_PUSH_APNS_APPS=
+#FLUXER_PUSH_APNS_DEFAULT_ENVIRONMENT=production
+#FLUXER_PUSH_FCM_ENABLED=false
+#FLUXER_PUSH_FCM_PROJECT_ID=
+#FLUXER_PUSH_FCM_CLIENT_EMAIL=
+#FLUXER_PUSH_FCM_PRIVATE_KEY=
+#FLUXER_PUSH_FCM_PRIVATE_KEY_PATH=
+#FLUXER_PUSH_FCM_SERVICE_ACCOUNT_JSON_PATH=
+#FLUXER_PUSH_FCM_TOKEN_URI=https://oauth2.googleapis.com/token
+#FLUXER_PUSH_FCM_APPS=
 
 
 # Optional media policies, both off by default. See the operator docs.
@@ -164,8 +247,9 @@ FLUXER_VAPID_PRIVATE_KEY=CHANGE_ME
 # working. Needs a secret from openssl rand -base64 32, first entry signs and
 # every entry verifies.
 #
-# Each mode is off, report or enforce. Start at report. media-proxy reads these
-# at start, so apply with docker compose up -d media-proxy.
+# Each mode is off, report or enforce, and off is the default. Start at report.
+# media-proxy reads these at start, so apply with docker compose up -d
+# media-proxy. The values below are examples.
 #FLUXER_MEDIA_PROXY_CORS_MODE=enforce
 #FLUXER_MEDIA_PROXY_CORS_ALLOWED_ORIGINS=https://chat.example.com,https://web.fluxer.app
 #FLUXER_MEDIA_PROXY_ATTACHMENT_URL_SECRETS_BASE64=
@@ -190,7 +274,7 @@ FLUXER_VAPID_PRIVATE_KEY=CHANGE_ME
 
 # Let the SSO provider resolve to a private address. Off by default, so a
 # misconfigured provider URL cannot reach internal services. Turn it on only for
-# a provider on your own network.
+# a provider on your own network. The value below is an example.
 #FLUXER_SSO_ALLOW_PRIVATE_ADDRESSES=true
 
 # These reach both LiveKit and the api. Change them together.
@@ -207,13 +291,20 @@ LIVEKIT_API_SECRET=CHANGE_ME
 
 # LiveKit finds its public address over STUN. A host that cannot reach one stops
 # with "could not resolve external IP", so set the address by hand instead, or
-# point STUN elsewhere.
+# point STUN elsewhere. The values below are examples.
 #FLUXER_LIVEKIT_USE_EXTERNAL_IP=false
 #FLUXER_LIVEKIT_NODE_IP=203.0.113.10
 #FLUXER_LIVEKIT_STUN_PRIMARY=stun.l.google.com:19302
 #FLUXER_LIVEKIT_STUN_SECONDARY=stun1.l.google.com:19302
 
+# The voice region users see, and how much LiveKit logs.
+#FLUXER_LIVEKIT_DEFAULT_REGION={"id":"default","name":"Default","emoji":"🌍","latitude":0,"longitude":0}
+#FLUXER_LIVEKIT_LOG_LEVEL=info
+
 FLUXER_KLIPY_API_KEY=
+#FLUXER_YOUTUBE_API_KEY=
+# Hosts the api never unfurls, comma separated.
+#FLUXER_API_UNFURL_IGNORED_HOSTS=
 
 FLUXER_EMAIL_ENABLED=false
 FLUXER_EMAIL_PROVIDER=none
@@ -225,8 +316,93 @@ FLUXER_EMAIL_SMTP_PORT=587
 FLUXER_EMAIL_SMTP_USERNAME=
 FLUXER_EMAIL_SMTP_PASSWORD=
 FLUXER_EMAIL_SMTP_SECURE=true
+#FLUXER_EMAIL_WEBHOOK_SECRET=
 
 FLUXER_DISCOVERY_ENABLED=true
+#FLUXER_DISCOVERY_MIN_MEMBER_COUNT=1
+
+# Instance identity and account policy.
+#FLUXER_APP_PRODUCT_NAME=Fluxer
+#FLUXER_APP_ICON_URL=
+#FLUXER_APP_SYMBOL_URL=
+#FLUXER_APP_LOGO_URL=
+#FLUXER_APP_WORDMARK_URL=
+#FLUXER_APP_FAVICON_URL=
+#FLUXER_APP_THEME_COLOR=
+#FLUXER_APP_STATUS_PAGE_URL=
+#FLUXER_APP_STATUS_PAGE_INCIDENT_HISTORY_URL=
+#FLUXER_INSTANCE_SETUP_CONFIGURED=false
+#FLUXER_AUTO_JOIN_INVITE_CODE=
+#FLUXER_DELETION_GRACE_PERIOD_HOURS=336
+
+# Sign in with Bluesky, off unless turned on.
+#FLUXER_AUTH_BLUESKY_ENABLED=false
+#FLUXER_AUTH_BLUESKY_CLIENT_NAME=Fluxer
+#FLUXER_AUTH_BLUESKY_CLIENT_URI=
+#FLUXER_AUTH_BLUESKY_LOGO_URI=
+#FLUXER_AUTH_BLUESKY_TOS_URI=
+#FLUXER_AUTH_BLUESKY_POLICY_URI=
+#FLUXER_AUTH_BLUESKY_KEYS=
+
+# Public addresses. Each follows the public origin unless set here.
+#FLUXER_API_ENDPOINT=
+#FLUXER_API_CLIENT_ENDPOINT=
+#FLUXER_APP_ENDPOINT=
+#FLUXER_GATEWAY_ENDPOINT=
+#FLUXER_MEDIA_ENDPOINT=
+#FLUXER_STATIC_CDN_ENDPOINT=
+#FLUXER_ADMIN_ENDPOINT=
+#FLUXER_MARKETING_ENDPOINT=
+#FLUXER_INVITE_ENDPOINT=
+#FLUXER_GIFT_ENDPOINT=
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_ENDPOINT=
+#PUBLIC_BOOTSTRAP_API_PUBLIC_ENDPOINT=
+# These follow FLUXER_STATIC_CDN_ENDPOINT first, then the public origin.
+#FLUXER_GATEWAY_STATIC_CDN_ENDPOINT=
+#FLUXER_UNFURL_STATIC_CDN_ENDPOINT=
+# These follow FLUXER_MEDIA_ENDPOINT first, then the public origin.
+#FLUXER_MEDIA_PROXY_PUBLIC_ENDPOINT=
+#FLUXER_GATEWAY_MEDIA_PROXY_ENDPOINT=
+
+# Extra hosts for static assets, invites, gifts and the web app. Empty by default.
+#FLUXER_STATIC_CDN_DOMAIN=
+#FLUXER_INVITE_DOMAIN=
+#FLUXER_GIFT_DOMAIN=
+#FLUXER_APP_ORIGIN_ALIASES=
+
+# The path the admin panel is served under. The edge and the admin service read
+# it. The api follows it through the default FLUXER_ADMIN_ENDPOINT, and not when
+# FLUXER_ADMIN_ENDPOINT is set. Write it with a leading slash and no trailing
+# slash.
+#FLUXER_ADMIN_BASE_PATH=/admin
+
+# The compression the edge offers, as Caddy encode arguments.
+#FLUXER_EDGE_ENCODE=zstd gzip
+
+# Images of the bundled services, for a mirror or another tag. A new Postgres
+# major needs a dump and restore, as the upgrade guide describes.
+#FLUXER_CADDY_IMAGE=caddy:2.11-alpine
+#FLUXER_POSTGRES_IMAGE=postgres:16-alpine
+#FLUXER_VALKEY_IMAGE=valkey/valkey:9.1-alpine
+#FLUXER_NATS_IMAGE=nats:2.14-alpine
+#FLUXER_MEILISEARCH_IMAGE=getmeili/meilisearch:v1.53
+#FLUXER_SEAWEEDFS_IMAGE=chrislusf/seaweedfs:4.47
+#FLUXER_LIVEKIT_IMAGE=livekit/livekit-server:v1.12.0
+
+# Restart policy for every long-running service.
+#FLUXER_RESTART_POLICY=unless-stopped
+
+# Health checks. Raise the retries or start periods on a slow host.
+#FLUXER_HEALTHCHECK_INTERVAL=10s
+#FLUXER_HEALTHCHECK_TIMEOUT=5s
+#FLUXER_HEALTHCHECK_RETRIES=10
+#FLUXER_APP_HEALTHCHECK_RETRIES=30
+#FLUXER_APP_HEALTHCHECK_START_PERIOD=90s
+#FLUXER_SVC_HEALTHCHECK_START_PERIOD=60s
+#FLUXER_WORKER_HEALTHCHECK_RETRIES=3
+#FLUXER_SEAWEEDFS_HEALTHCHECK_RETRIES=20
+#FLUXER_SEAWEEDFS_HEALTHCHECK_START_PERIOD=60s
+#FLUXER_SEAWEEDFS_INIT_ATTEMPTS=60
 
 # Container memory. These are ceilings, not allocations, and the defaults suit a
 # 16 GB host. The reservations bias the kernel away from reclaiming from services
@@ -264,18 +440,31 @@ FLUXER_DISCOVERY_ENABLED=true
 
 # Meilisearch indexing memory. Keep it well under the container limit above.
 #FLUXER_MEILISEARCH_MAX_INDEXING_MEMORY=384mb
+#FLUXER_MEILISEARCH_ENV=production
+#FLUXER_MEILISEARCH_NO_ANALYTICS=true
 
 # SeaweedFS heap ceiling. Go cannot see the container limit, so without this an
 # upload burst gets the container OOM-killed. Keep it near three quarters of
 # FLUXER_SEAWEEDFS_MEMORY_LIMIT and raise both together.
 #FLUXER_SEAWEEDFS_GOMEMLIMIT=1536MiB
+#FLUXER_SEAWEEDFS_TELEMETRY=false
 
 # Node sizes its heap from the container limit by default. Leave these unset
 # unless you need to pin it. A heap ceiling above the container limit gets the
-# container OOM-killed instead of reporting a heap error.
+# container OOM-killed instead of reporting a heap error. The values below are
+# examples.
 #FLUXER_API_NODE_HEAP_MB=1792
 #FLUXER_WORKER_NODE_HEAP_MB=1792
 
+# Extra Node flags for api and worker, appended to NODE_OPTIONS. Empty by
+# default. The value below is an example.
+#FLUXER_API_NODE_OPTIONS=--heapsnapshot-near-heap-limit=1
+#FLUXER_WORKER_NODE_OPTIONS=--heapsnapshot-near-heap-limit=1
+
+# Extra CA certificates api and worker trust, as a PEM bundle path inside the
+# container. The default is the image's system bundle.
+#FLUXER_NODE_EXTRA_CA_CERTS=/etc/ssl/certs/ca-certificates.crt
+
 # Bundled Postgres tuning. Keep it consistent with the memory limit above. This
 # is the server setting, not the per-service pool sizes.
 #FLUXER_POSTGRES_SERVER_MAX_CONNECTIONS=150
@@ -285,23 +474,81 @@ FLUXER_DISCOVERY_ENABLED=true
 #FLUXER_POSTGRES_MAINTENANCE_WORK_MEM=256MB
 #FLUXER_POSTGRES_AUTOVACUUM_WORK_MEM=128MB
 #FLUXER_POSTGRES_SHM_SIZE=1gb
+#FLUXER_POSTGRES_RANDOM_PAGE_COST=1.1
+#FLUXER_POSTGRES_EFFECTIVE_IO_CONCURRENCY=200
+#FLUXER_POSTGRES_DEFAULT_STATISTICS_TARGET=200
+#FLUXER_POSTGRES_JIT=off
+#FLUXER_POSTGRES_MIN_WAL_SIZE=512MB
+#FLUXER_POSTGRES_MAX_WAL_SIZE=2GB
+#FLUXER_POSTGRES_CHECKPOINT_COMPLETION_TARGET=0.9
+#FLUXER_POSTGRES_WAL_BUFFERS=16MB
+#FLUXER_POSTGRES_WAL_COMPRESSION=zstd
+#FLUXER_POSTGRES_BGWRITER_DELAY=50ms
+#FLUXER_POSTGRES_BGWRITER_LRU_MAXPAGES=1000
+#FLUXER_POSTGRES_AUTOVACUUM_VACUUM_SCALE_FACTOR=0.05
+#FLUXER_POSTGRES_AUTOVACUUM_ANALYZE_SCALE_FACTOR=0.02
+#FLUXER_POSTGRES_AUTOVACUUM_VACUUM_COST_LIMIT=2000
+#FLUXER_POSTGRES_TRACK_IO_TIMING=on
+#FLUXER_POSTGRES_SHARED_PRELOAD_LIBRARIES=pg_stat_statements
+
+# Postgres pool size of each service that opens a pool.
+#FLUXER_API_POSTGRES_MAX_CONNECTIONS=25
+#FLUXER_WORKER_POSTGRES_MAX_CONNECTIONS=25
+#FLUXER_USERS_SHARD_POSTGRES_MAX_CONNECTIONS=20
+#FLUXER_MESSAGES_SHARD_POSTGRES_MAX_CONNECTIONS=20
 
 # The bundled Valkey holds durable state as well as cache, so it runs with an
 # append-only file and with noeviction, which fails an over-limit write instead
 # of dropping queued work. Change the policy only if that state lives elsewhere.
 #FLUXER_VALKEY_MAXMEMORY=192mb
 #FLUXER_VALKEY_MAXMEMORY_POLICY=noeviction
+#FLUXER_VALKEY_APPENDFSYNC=everysec
 
 # The gateway derives its scheduler count from the CPU quota, clamped here. One
 # scheduler lets a single blocking operation stall every websocket on the node.
 #FLUXER_ERLANG_SCHEDULERS_MIN=2
 #FLUXER_ERLANG_SCHEDULERS_MAX=16
+# A fixed scheduler count skips the clamp. Dirty CPU schedulers default to two
+# thirds of it.
+#FLUXER_ERLANG_SCHEDULERS=
+#FLUXER_ERLANG_DIRTY_CPU_SCHEDULERS=
 
-# In-flight request ceiling for the users and messages routers and their shards.
-# One value replaces the built-in default on all of them, so size it for the
-# busiest. Too low a value rejects requests rather than slowing them, and the api
-# turns that into a 503.
-#FLUXER_SVC_MAX_CONCURRENT_REQUESTS=192
+# Gateway push and RPC tuning.
+#FLUXER_GATEWAY_PUSH_ENABLED=true
+#FLUXER_GATEWAY_PUSH_ENROLLED_CLEAR_NOTIFICATIONS_ENABLED=true
+#FLUXER_GATEWAY_PUSH_OUTBOX_REQUEST_TIMEOUT_MS=100000
+#FLUXER_GATEWAY_PRESENCE_PUSH_BUFFER_MAX_ENTRIES=128
+#FLUXER_GATEWAY_PRESENCE_PUSH_BUFFER_MAX_BYTES=1048576
+#FLUXER_GATEWAY_HTTP_RPC_MAX_CONCURRENCY=512
+#FLUXER_GATEWAY_NATS_RPC_MAX_HANDLERS=512
+#FLUXER_GATEWAY_HTTP_FAILURE_THRESHOLD=6
+#FLUXER_GATEWAY_HTTP_RECOVERY_TIMEOUT_MS=15000
+
+# In-flight request ceiling for every svc router and shard. Unset, each keeps its
+# own default: 192 for messages, 320 for snowflakes and 64 for the rest. One value
+# replaces all of them, so size it for the busiest. Too low a value rejects
+# requests rather than slowing them, and the api turns that into a 503. The value
+# below is an example.
+#FLUXER_SVC_MAX_CONCURRENT_REQUESTS=320
+
+# svc caches, and how the api calls the svc services over NATS.
+#FLUXER_SVC_CACHE_MAX_ENTRIES=100000
+#FLUXER_SVC_CACHE_TTL_MS=30000
+#FLUXER_GIFS_SHARD_CACHE_MAX_BYTES=536870912
+#FLUXER_GIF_SERVICE_NATS_CLIENT_NAME=fluxer-api-gifs
+#FLUXER_GIF_SERVICE_TIMEOUT_MS=12000
+#FLUXER_GIF_SERVICE_REGISTER_SHARE_TIMEOUT_MS=3000
+#FLUXER_USERS_SERVICE_NATS_CLIENT_NAME=fluxer-api-users
+#FLUXER_USERS_SERVICE_TIMEOUT_MS=6000
+#FLUXER_USERS_SERVICE_INFLIGHT_MAX_ENTRIES=10000
+#FLUXER_SNOWFLAKE_SERVICE_NATS_CLIENT_NAME=fluxer-api-snowflakes
+#FLUXER_SNOWFLAKE_SERVICE_BATCH_SIZE=128
+#FLUXER_SNOWFLAKE_SERVICE_LOW_WATERMARK=
+#FLUXER_SNOWFLAKE_SERVICE_MAX_BUFFER_AGE_MS=5000
+#FLUXER_SNOWFLAKE_SERVICE_REQUEST_TIMEOUT_MS=6000
+
+# Worker concurrency per lane, as a JSON object keyed by lane.
+#FLUXER_API_WORKER_LANE_CONCURRENCY_OVERRIDES=
 
 # Named prepared statements need a session that outlives the transaction, so set
 # this to false behind a transaction-pooling connection pooler. The bundled
@@ -313,3 +560,51 @@ FLUXER_DISCOVERY_ENABLED=true
 # is clamped down to the second. Milliseconds, 1000 to 3600000.
 #FLUXER_API_HEADERS_TIMEOUT_MS=30000
 #FLUXER_API_REQUEST_TIMEOUT_MS=120000
+
+# api request limits and IP bans. A refresh interval of 0 stops the periodic
+# ban reload.
+#FLUXER_API_MAX_INFLIGHT_REQUESTS=512
+#FLUXER_API_IP_BAN_EXEMPT_IPS=
+#FLUXER_IP_BAN_REFRESH_INTERVAL_MS=300000
+
+# Uploads and data exports. Presigned exports link to FLUXER_S3_PUBLIC_ENDPOINT,
+# so turn them on only once browsers can reach it.
+#FLUXER_API_PRESIGNED_ATTACHMENT_UPLOADS_ENABLED=true
+#FLUXER_API_PRESIGNED_HARVEST_DOWNLOADS_ENABLED=false
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_MAX_BODY_BYTES=524288000
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_TOKEN_TTL_SECS=900
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_KEEP_DIRECT_COUNTRIES=
+#FLUXER_API_STORAGE_CHANGE_FEED_ENABLED=false
+#FLUXER_API_STORAGE_CHANGE_FEED_STREAM=STORAGE_CHANGES
+#FLUXER_API_STORAGE_CHANGE_FEED_SKIP_BUCKETS=
+#FLUXER_CACHE_PURGE_ADAPTER=none
+#FLUXER_CACHE_PURGE_HTTP_ENDPOINT=
+#FLUXER_CACHE_PURGE_HTTP_TOKEN=
+#FLUXER_CACHE_PURGE_HTTP_TIMEOUT_MS=10000
+
+# media-proxy limits and timeouts.
+#FLUXER_MEDIA_PROXY_READ_ONLY=false
+#FLUXER_MEDIA_PROXY_NSFW_THRESHOLD=0.85
+#FLUXER_NSFW_SERVICE_ENDPOINT=
+#FLUXER_MEDIA_PROXY_MAX_NATIVE_TRANSFORMS=
+#FLUXER_MEDIA_PROXY_WORKER_QUEUE_CAPACITY=
+#FLUXER_MEDIA_PROXY_MAX_ENCODE_DURATION_MS=30000
+#FLUXER_MEDIA_PROXY_MAX_ENCODE_FRAMES=20000
+#FLUXER_MEDIA_PROXY_TRANSFORM_TIMEOUT_MS=15000
+#FLUXER_MEDIA_PROXY_TRANSFORM_CACHE_BYTES=268435456
+#FLUXER_MEDIA_PROXY_TRANSFORM_CACHE_MAX_ENTRY_BYTES=67108864
+#FLUXER_MEDIA_PROXY_TRANSFORM_CACHE_TTL_MS=120000
+#FLUXER_MEDIA_PROXY_SOCKET_IO_TIMEOUT_MS=30000
+#FLUXER_MEDIA_PROXY_SHUTDOWN_GRACE_MS=30000
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_S3_TIMEOUT_MS=900000
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_BUFFERED_RETRY_BYTES=33554432
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_BUFFERED_RETRY_TOTAL_BYTES=536870912
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_SPOOL_DIR=
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_SPOOL_CHUNK_BYTES=1048576
+#FLUXER_MEDIA_PROXY_UPLOAD_RELAY_SPOOL_MAX_TOTAL_BYTES=8589934592
+
+# app-proxy discovery refresh, index upstream and manifest scope.
+#DISCOVERY_REFRESH_INTERVAL_MS=60000
+#FLUXER_APP_PROXY_INDEX_UPSTREAM_URL=
+#FLUXER_APP_PROXY_SAME_ORIGIN_HOSTS=
+#FLUXER_APP_PROXY_MANIFEST_SCOPE_EXTENSIONS=