You are viewing documentation for Flux version: 2.2
Version 2.2 of the documentation is no longer actively maintained. The site that you are currently viewing is an archived snapshot. For up-to-date documentation, see the latest version.
Controller Options
Controller command flags and defaults.
To customise the controller options at install time, please see the bootstrap customization guide.
Flags
| Name | Type | Description |
|---|---|---|
--concurrent | int | The number of concurrent HelmRelease reconciles. (default 4) |
--default-service-account | string | Default service account used for impersonation. |
--enable-leader-election | boolean | Enable leader election for controller manager. Enabling this will ensure there is only one active controller manager. |
--events-addr | string | The address of the events receiver. |
--graceful-shutdown-timeout | int | The duration given to the reconciler to finish before forcibly stopping. (default 600s) |
--health-addr | string | The address the health endpoint binds to. (default “:9440”) |
--http-retry | int | The maximum number of retries when failing to fetch artifacts over HTTP. (default 9) |
--insecure-kubeconfig-exec | boolean | Allow use of the user.exec section in kubeconfigs provided for remote apply. |
--insecure-kubeconfig-tls | boolean | Allow that kubeconfigs provided for remote apply can disable TLS verification. |
--kube-api-burst | int | The maximum burst queries-per-second of requests sent to the Kubernetes API. (default 100) |
--kube-api-qps | float32 | The maximum queries-per-second of requests sent to the Kubernetes API. (default 50) |
--leader-election-lease-duration | duration | Interval at which non-leader candidates will wait to force acquire leadership (duration string). (default 35s) |
--leader-election-release-on-cancel | boolean | Defines if the leader should step down voluntarily on controller manager shutdown. (default true) |
--leader-election-renew-deadline | duration | Duration that the leading controller manager will retry refreshing leadership before giving up (duration string). (default 30s) |
--leader-election-retry-period | duration | Duration the LeaderElector clients should wait between tries of actions (duration string). (default 5s) |
--log-encoding | string | Log encoding format. Can be ‘json’ or ‘console’. (default “json”) |
--log-level | string | Log verbosity level. Can be one of ’trace’, ‘debug’, ‘info’, ’error’. (default “info”) |
--max-retry-delay | duration | The maximum amount of time for which an object being reconciled will have to wait before a retry. (default 15m0s) |
--metrics-addr | string | The address the metric endpoint binds to. (default “:8080”) |
--min-retry-delay | duration | The minimum amount of time for which an object being reconciled will have to wait before a retry. (default 750ms) |
--no-cross-namespace-refs | boolean | When set to true, references between custom resources are allowed only if the reference and the referee are in the same namespace. |
--requeue-dependency | duration | The interval at which failing dependencies are reevaluated. (default 30s) |
--watch-all-namespaces | boolean | Watch for custom resources in all namespaces, if set to false it will only watch the runtime namespace. (default true) |
--watch-label-selector | string | Watch for resources with matching labels e.g. ‘sharding.fluxcd.io/shard=shard1’. |
--feature-gates | mapStringBool | A comma separated list of key=value pairs defining the state of experimental features. |
--oom-watch-interval | duration | The interval at which the OOM watcher will check for memory usage. Requires feature gate ‘OOMWatch’ to be enabled. (default 500ms) |
--oom-watch-memory-threshold | unit8 | The memory threshold in percentage at which the OOM watcher will trigger a graceful shutdown. Requires feature gate ‘OOMWatch’ to be enabled. (default 95) |
--oom-watch-max-memory-path | string | The path to the cgroup memory limit file. Requires feature gate ‘OOMWatch’ to be enabled. If not set, the path will be automatically detected. |
--oom-watch-current-memory-path | string | The path to the cgroup current memory usage file. Requires feature gate ‘OOMWatch’ to be enabled. If not set, the path will be automatically detected. |
--interval-jitter-percentage | uint8 | Percentage of jitter to apply to interval durations. A value of 10 will apply a jitter of +/-10% to the interval duration. It cannot be negative, and must be less than 100. (default 5) |
--snapshot-digest-algo | string | The algorithm to use to calculate the digest of Helm release storage snapshots. (default “sha256”) |
Feature Gates
| Name | Default Value | Description |
|---|---|---|
AllowDNSLookups | false | Allows the controller to perform DNS lookups when rendering Helm templates. This is disabled by default, as it can be a security risk. |
CacheSecretsAndConfigMaps | false | Configures the caching of Secrets and ConfigMaps by the controller-runtime client. When enabled, it will cache both object types, resulting in increased memory usage and cluster-wide RBAC permissions (list and watch). |
OOMWatch | false | Enables the OOM watcher, which will gracefully shut down the controller when the memory usage exceeds the configured limit. This is disabled by default. |
AdoptLegacyReleases | true | Enables the adoption of the historical Helm release based on the status fields from a v2beta1 HelmRelease object. This is enabled by default to support an upgrade path from v2beta1 to v2beta2 without the need to upgrade the Helm release. |
Last modified 2023-12-12: Document `AdoptLegacyReleases` feature flag (bf1777b)