fluxheim/examples/load-balancer-enterprise.toml at main · valkyoth/fluxheim · GitHub

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[server]
listen = ["127.0.0.1:8080"]
trusted_proxies = []

[server.process]
daemon = false
pid_file = "/run/fluxheim/fluxheim.pid"
upgrade_sock = "/run/fluxheim/fluxheim-upgrade.sock"
threads = 2
listener_tasks_per_fd = 1
work_stealing = true
upstream_keepalive_pool_size = 256
max_retries = 16

[admin]
enabled = false
listen = "127.0.0.1:9090"
require_loopback = true

[metrics]
enabled = true
listen = "127.0.0.1:9091"
require_loopback = true

[logging]
level = "info"
format = "json"
target = "stderr"

[logging.access]
enabled = true
include_host = true
include_path = true
request_id = true

[proxy]
upstreams = [
    "127.0.0.1:3001",
    "127.0.0.1:3002",
    "127.0.0.1:3003",
    "127.0.0.1:3004",
]
upstream_aliases = ["app-a", "app-b", "app-c", "app-dr"]
upstream_tags = [["blue", "primary"], ["blue", "primary"], ["green", "canary"], ["dr"]]
upstream_weights = [4, 4, 2, 1]
upstream_priority_groups = [100, 100, 50, 10]
upstream_priority_group_min_active = 2
upstream_localities = ["site-a", "site-a", "site-b", "site-dr"]
preferred_upstream_localities = ["site-a"]
upstream_max_in_flight = [500, 500, 250, 100]
backup_upstreams = ["127.0.0.1:3004"]
drain_upstreams = ["127.0.0.1:3003"]
disabled_upstreams = []
upstream_tls = false
connect_timeout_secs = 3
read_timeout_secs = 30
send_timeout_secs = 30
downstream_write_timeout_secs = 30

[proxy.load_balance]
selection = "least-time"
max_iterations = 256
all_down_status = 503

[proxy.load_balance.health_check]
enabled = true
protocol = "http"
interval_secs = 2
consecutive_success = 2
consecutive_failure = 3
parallel = true
method = "GET"
path = "/healthz"
expected_statuses = [200, 204]
expected_status_ranges = [{ start = 200, end = 299 }]
expected_headers = [{ name = "x-fluxheim-health", value = "ready" }]
expected_body_contains = ["ready"]
reuse_connection = false
connect_timeout_secs = 1
read_timeout_secs = 2

[proxy.load_balance.passive_health]
enabled = true
consecutive_failure = 3
ejection_secs = 30
min_healthy_backends = 1
failure_statuses = [500, 502, 503]
failure_status_ranges = [{ start = 520, end = 529 }]
max_latency_ms = 2000

[proxy.load_balance.slow_start]
enabled = true
duration_secs = 30

[proxy.load_balance.persistence]
enabled = true
mode = "managed-cookie"
cookie = "fluxheim_lb"
ttl_secs = 600
table_max_entries = 65536
managed_cookie_path = "/"
managed_cookie_secure = true
managed_cookie_http_only = true
managed_cookie_same_site = "lax"

[proxy.load_balance.retry]
enabled = true
max_retries = 2
methods = ["GET", "HEAD", "OPTIONS"]
statuses = [500, 502, 503]
status_ranges = [{ start = 520, end = 529 }]
budget_per_window = 1000
budget_window_secs = 1

[proxy.load_balance.queue]
max_waiting = 512
timeout_ms = 250
retry_interval_ms = 10