sidecar-injector

Kubernetes webhook for automatic Istio sidecar injection.

sidecar-injector [flags]
FlagsDescription
--caCertFile <string>File containing the x509 Certificate for HTTPS. (default `/etc/istio/certs/root-cert.pem`)
--healthCheckFile <string>File that should be periodically updated if health checking is enabled (default ``)
--healthCheckInterval <duration>Configure how frequently the health check file specified by --healthCheckFile should be updated (default `0s`)
--injectConfig <string>File containing the Istio sidecar injection configuration and template (default `/etc/istio/inject/config`)
--injectValues <string>File containing the Istio sidecar injection values, in yaml format (default `/etc/istio/inject/values`)
--kubeconfig <string>Specifies path to kubeconfig file. This must be specified when not running inside a Kubernetes pod. (default ``)
--log_as_jsonWhether to format output as JSON or in plain console-friendly format
--log_caller <string>Comma-separated list of scopes for which to include caller information, scopes can be any of [default, model, rbac] (default ``)
--log_output_level <string>Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of [default, model, rbac] and level can be one of [debug, info, warn, error, fatal, none] (default `default:info`)
--log_rotate <string>The path for the optional rotating log file (default ``)
--log_rotate_max_age <int>The maximum age in days of a log file beyond which the file is rotated (0 indicates no limit) (default `30`)
--log_rotate_max_backups <int>The maximum number of log file backups to keep before older files are deleted (0 indicates no limit) (default `1000`)
--log_rotate_max_size <int>The maximum size in megabytes of a log file beyond which the file is rotated (default `104857600`)
--log_stacktrace_level <string>Comma-separated minimum per-scope logging level at which stack traces are captured, in the form of <scope>:<level>,<scope:level>,... where scope can be one of [default, model, rbac] and level can be one of [debug, info, warn, error, fatal, none] (default `default:none`)
--log_target <stringArray>The set of paths where to output the log. This can be any path as well as the special values stdout and stderr (default `[stdout]`)
--meshConfig <string>File containing the Istio mesh configuration (default `/etc/istio/config/mesh`)
--port <int>Webhook port (default `443`)
--tlsCertFile <string>File containing the x509 Certificate for HTTPS. (default `/etc/istio/certs/cert-chain.pem`)
--tlsKeyFile <string>File containing the x509 private key matching --tlsCertFile. (default `/etc/istio/certs/key.pem`)
--webhookConfigName <string>Name of the mutatingwebhookconfiguration resource in Kubernetes. (default `istio-sidecar-injector`)
--webhookName <string>Name of the webhook entry in the webhook config. (default `sidecar-injector.istio.io`)

sidecar-injector probe

Check the liveness or readiness of a locally-running server

sidecar-injector probe [flags]
FlagsDescription
--caCertFile <string>File containing the x509 Certificate for HTTPS. (default `/etc/istio/certs/root-cert.pem`)
--healthCheckFile <string>File that should be periodically updated if health checking is enabled (default ``)
--healthCheckInterval <duration>Configure how frequently the health check file specified by --healthCheckFile should be updated (default `0s`)
--injectConfig <string>File containing the Istio sidecar injection configuration and template (default `/etc/istio/inject/config`)
--injectValues <string>File containing the Istio sidecar injection values, in yaml format (default `/etc/istio/inject/values`)
--interval <duration>Duration used for checking the target file's last modified time. (default `0s`)
--kubeconfig <string>Specifies path to kubeconfig file. This must be specified when not running inside a Kubernetes pod. (default ``)
--log_as_jsonWhether to format output as JSON or in plain console-friendly format
--log_caller <string>Comma-separated list of scopes for which to include caller information, scopes can be any of [default, model, rbac] (default ``)
--log_output_level <string>Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of [default, model, rbac] and level can be one of [debug, info, warn, error, fatal, none] (default `default:info`)
--log_rotate <string>The path for the optional rotating log file (default ``)
--log_rotate_max_age <int>The maximum age in days of a log file beyond which the file is rotated (0 indicates no limit) (default `30`)
--log_rotate_max_backups <int>The maximum number of log file backups to keep before older files are deleted (0 indicates no limit) (default `1000`)
--log_rotate_max_size <int>The maximum size in megabytes of a log file beyond which the file is rotated (default `104857600`)
--log_stacktrace_level <string>Comma-separated minimum per-scope logging level at which stack traces are captured, in the form of <scope>:<level>,<scope:level>,... where scope can be one of [default, model, rbac] and level can be one of [debug, info, warn, error, fatal, none] (default `default:none`)
--log_target <stringArray>The set of paths where to output the log. This can be any path as well as the special values stdout and stderr (default `[stdout]`)
--meshConfig <string>File containing the Istio mesh configuration (default `/etc/istio/config/mesh`)
--port <int>Webhook port (default `443`)
--probe-path <string>Path of the file for checking the availability. (default ``)
--tlsCertFile <string>File containing the x509 Certificate for HTTPS. (default `/etc/istio/certs/cert-chain.pem`)
--tlsKeyFile <string>File containing the x509 private key matching --tlsCertFile. (default `/etc/istio/certs/key.pem`)
--webhookConfigName <string>Name of the mutatingwebhookconfiguration resource in Kubernetes. (default `istio-sidecar-injector`)
--webhookName <string>Name of the webhook entry in the webhook config. (default `sidecar-injector.istio.io`)

sidecar-injector version

Prints out build version information

sidecar-injector version [flags]
FlagsShorthandDescription
--caCertFile <string>File containing the x509 Certificate for HTTPS. (default `/etc/istio/certs/root-cert.pem`)
--healthCheckFile <string>File that should be periodically updated if health checking is enabled (default ``)
--healthCheckInterval <duration>Configure how frequently the health check file specified by --healthCheckFile should be updated (default `0s`)
--injectConfig <string>File containing the Istio sidecar injection configuration and template (default `/etc/istio/inject/config`)
--injectValues <string>File containing the Istio sidecar injection values, in yaml format (default `/etc/istio/inject/values`)
--kubeconfig <string>Specifies path to kubeconfig file. This must be specified when not running inside a Kubernetes pod. (default ``)
--log_as_jsonWhether to format output as JSON or in plain console-friendly format
--log_caller <string>Comma-separated list of scopes for which to include caller information, scopes can be any of [default, model, rbac] (default ``)
--log_output_level <string>Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of [default, model, rbac] and level can be one of [debug, info, warn, error, fatal, none] (default `default:info`)
--log_rotate <string>The path for the optional rotating log file (default ``)
--log_rotate_max_age <int>The maximum age in days of a log file beyond which the file is rotated (0 indicates no limit) (default `30`)
--log_rotate_max_backups <int>The maximum number of log file backups to keep before older files are deleted (0 indicates no limit) (default `1000`)
--log_rotate_max_size <int>The maximum size in megabytes of a log file beyond which the file is rotated (default `104857600`)
--log_stacktrace_level <string>Comma-separated minimum per-scope logging level at which stack traces are captured, in the form of <scope>:<level>,<scope:level>,... where scope can be one of [default, model, rbac] and level can be one of [debug, info, warn, error, fatal, none] (default `default:none`)
--log_target <stringArray>The set of paths where to output the log. This can be any path as well as the special values stdout and stderr (default `[stdout]`)
--meshConfig <string>File containing the Istio mesh configuration (default `/etc/istio/config/mesh`)
--output <string>-oOne of 'yaml' or 'json'. (default ``)
--port <int>Webhook port (default `443`)
--short-sDisplays a short form of the version information
--tlsCertFile <string>File containing the x509 Certificate for HTTPS. (default `/etc/istio/certs/cert-chain.pem`)
--tlsKeyFile <string>File containing the x509 private key matching --tlsCertFile. (default `/etc/istio/certs/key.pem`)
--webhookConfigName <string>Name of the mutatingwebhookconfiguration resource in Kubernetes. (default `istio-sidecar-injector`)
--webhookName <string>Name of the webhook entry in the webhook config. (default `sidecar-injector.istio.io`)

Environment variables

These environment variables affect the behavior of the sidecar-injector command.
Variable NameTypeDefault ValueDescription
ISTIO_GPRC_MAXSTREAMSInteger100000
PILOT_CERT_DIRString
PILOT_DEBOUNCE_AFTERTime Duration100ms
PILOT_DEBOUNCE_MAXTime Duration10s
PILOT_DEBUG_ADSZ_CONFIGBooleanfalse
PILOT_DISABLE_EDS_ISOLATIONString
PILOT_DISABLE_XDS_MARSHALING_TO_ANYString
PILOT_ENABLE_CDS_PRECOMPUTATIONString
PILOT_ENABLE_FALLTHROUGH_ROUTEBooleanfalseEnableFallthroughRoute provides an option to add a final wildcard match for routes. When ALLOW_ANY traffic policy is used, a Passthrough cluster is used. When REGISTRY_ONLY traffic policy is used, a 502 error is returned.
PILOT_ENABLE_LOCALITY_LOAD_BALANCINGString
PILOT_ENABLE_WAIT_CACHE_SYNCString
PILOT_HTTP10Booleanfalse
PILOT_PUSH_BURSTInteger100
PILOT_PUSH_THROTTLEInteger10
PILOT_TRACE_SAMPLINGFloating-Point100
TERMINATION_DRAIN_DURATION_SECONDSString
V2_REFRESHTime Duration0s

Annotations

These resource annotations are used by the sidecar-injector command.
Annotation NameDescription
policy.istio.io/checkDetermines the policy for behavior when unable to connect to Mixer. If not set, FAIL_CLOSE is set, rejecting requests.
policy.istio.io/checkBaseRetryWaitTimeBase time to wait between retries, will be adjusted by backoff and jitter. In duration format. If not set, this will be 80ms.
policy.istio.io/checkMaxRetryWaitTimeMaximum time to wait between retries to Mixer. In duration format. If not set, this will be 1000ms.
policy.istio.io/checkRetriesThe maximum number of retries on transport errors to Mixer. If not set, this will be 0, indicating no retries.
readiness.status.sidecar.istio.io/applicationPorts
readiness.status.sidecar.istio.io/failureThreshold
readiness.status.sidecar.istio.io/initialDelaySeconds
readiness.status.sidecar.istio.io/periodSeconds
sidecar.istio.io/inject
sidecar.istio.io/interceptionMode
sidecar.istio.io/proxyImage
sidecar.istio.io/rewriteAppHTTPProbersRewrite HTTP readiness and liveness probes to be redirected to istio-proxy sidecar
sidecar.istio.io/status
status.sidecar.istio.io/port
traffic.sidecar.istio.io/excludeInboundPorts
traffic.sidecar.istio.io/excludeOutboundIPRanges
traffic.sidecar.istio.io/includeInboundPorts
traffic.sidecar.istio.io/includeOutboundIPRanges
traffic.sidecar.istio.io/kubevirtInterfaces