days to Istio 1.5

istio_ca

Istio Certificate Authority (CA).

istio_ca [flags]
FlagsDescription
--append-dns-namesAppend DNS names to the certificates for webhook services.
--cert-chain <string>Path to the certificate chain file. (default ``)
--citadel-storage-namespace <string>Namespace where the Citadel pod is running. Will not be used if explicit file or other storage mechanism is specified. (default `istio-system`)
--ctrlz_address <string>The IP Address to listen on for the ControlZ introspection facility. Use '*' to indicate all addresses. (default `localhost`)
--ctrlz_port <uint16>The IP port to use for the ControlZ introspection facility (default `9876`)
--custom-dns-names <string>The list of account.namespace:customdns names, separated by comma. (default ``)
--enable-profilingEnabling profiling when monitoring Citadel.
--experimental-dual-useEnable dual-use mode. Generates certificates with a CommonName identical to the SAN.
--grpc-host-identities <string>The list of hostnames for istio ca server, separated by comma. (default `istio-ca,istio-citadel`)
--grpc-port <int>The port number for Citadel GRPC server. If unspecified, Citadel will not serve GRPC requests. (default `8060`)
--key-size <int>Size of generated private key. (default `2048`)
--kube-config <string>Specifies path to kubeconfig file. This must be specified when not running inside a Kubernetes pod. (default ``)
--listened-namespaces <string>Select the namespaces for the Citadel to listen to, separated by comma. If unspecified, Citadel tries to use the ${NAMESPACE} environment variable. If neither is set, Citadel listens to all namespaces. (default ``)
--liveness-probe-interval <duration>Interval of updating file for the liveness probe. (default `0s`)
--liveness-probe-path <string>Path to the file for the liveness probe. (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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] (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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] 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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] 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]`)
--max-workload-cert-ttl <duration>The max TTL of issued workload certificates. (default `2160h0m0s`)
--monitoring-port <int>The port number for monitoring Citadel. If unspecified, Citadel will disable monitoring. (default `15014`)
--org <string>Organization for the certificate. (default ``)
--pkcs8-keysWhether to generate PKCS#8 private keys.
--probe-check-interval <duration>Interval of checking the liveness of the CA. (default `30s`)
--read-signing-cert-onlyWhen set, Citadel only reads the self-signed signing cert and key from Kubernetes secret without generating one (if not exist). This flag avoids racing condition between multiple Citadels generating self-signed key and cert. Please make sure one and only one Citadel instance has this flag set to false.
--requested-ca-cert-ttl <duration>The requested TTL for the CA certificate. (default `8760h0m0s`)
--root-cert <string>Path to the root certificate file. (default ``)
--sds-enabledWhether SDS is enabled.
--self-signed-caIndicates whether to use auto-generated self-signed CA certificate. When set to true, the '--signing-cert' and '--signing-key' options are ignored.
--server-onlyWhen set, Citadel only serves as a server without writing the Kubernetes secrets.
--sign-ca-certsWhether Citadel signs certificates for other CAs.
--signing-cert <string>Path to the CA signing certificate file. (default ``)
--signing-key <string>Path to the CA signing key file. (default ``)
--trust-domain <string>The domain serves to identify the system with SPIFFE. (default ``)
--upstream-ca-address <string>The IP:port address of the upstream CA. When set, the CA will rely on the upstream Citadel to provision its own certificate. (default ``)
--workload-cert-grace-period-ratio <float32>The workload certificate rotation grace period, as a ratio of the workload certificate TTL. (default `0.5`)
--workload-cert-ttl <duration>The TTL of issued workload certificates. (default `2160h0m0s`)

istio_ca probe

Check the liveness or readiness of a locally-running server

istio_ca probe [flags]
FlagsDescription
--ctrlz_address <string>The IP Address to listen on for the ControlZ introspection facility. Use '*' to indicate all addresses. (default `localhost`)
--ctrlz_port <uint16>The IP port to use for the ControlZ introspection facility (default `9876`)
--interval <duration>Duration used for checking the target file's last modified time. (default `0s`)
--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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] (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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] 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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] 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]`)
--probe-path <string>Path of the file for checking the availability. (default ``)

istio_ca version

Prints out build version information

istio_ca version [flags]
FlagsShorthandDescription
--ctrlz_address <string>The IP Address to listen on for the ControlZ introspection facility. Use '*' to indicate all addresses. (default `localhost`)
--ctrlz_port <uint16>The IP port to use for the ControlZ introspection facility (default `9876`)
--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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] (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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] 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 [all, caSecretController, configMapController, default, k8sController, monitor, pkiCaLog, rootCertRotator, serverCaLog] 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]`)
--output <string>-oOne of 'yaml' or 'json'. (default ``)
--short-sUse --short=false to generate full version information

Environment variables

These environment variables affect the behavior of the istio_ca command.
Variable NameTypeDefault ValueDescription
CITADEL_ENABLE_JITTER_FOR_ROOT_CERT_ROTATORBooleantrueIf true, set up a jitter to start root cert rotator. Jitter selects a backoff time in seconds to start root cert rotator, and the back off time is below root cert check interval.
CITADEL_ENABLE_NAMESPACES_BY_DEFAULTBooleantrueDetermines whether unlabeled namespaces should be targeted by this Citadel instance
CITADEL_SELF_SIGNED_CA_CERT_TTLTime Duration87600h0m0sThe TTL of self-signed CA root certificate.
CITADEL_SELF_SIGNED_ROOT_CERT_CHECK_INTERVALTime Duration1h0m0sThe interval that self-signed CA checks its root certificate expiration time and rotates root certificate. Setting this interval to zero or a negative value disables automated root cert check and rotation. This interval is suggested to be larger than 10 minutes.
CITADEL_SELF_SIGNED_ROOT_CERT_GRACE_PERIOD_PERCENTILEInteger20Grace period percentile for self-signed root cert.
CITADEL_WORKLOAD_CERT_MIN_GRACE_PERIODTime Duration10m0sThe minimum workload certificate rotation grace period.
NAMESPACEString

Exported metrics

Metric NameTypeDescription
citadel_secret_controller_csr_err_countSumThe number of errors occurred when creating the CSR.
citadel_secret_controller_csr_sign_err_countSumThe number of errors occurred when signing the CSR.
citadel_secret_controller_secret_deleted_cert_countSumThe number of certificates recreated due to secret deletion (service account still exists).
citadel_secret_controller_svc_acc_created_cert_countSumThe number of certificates created due to service account creation.
citadel_secret_controller_svc_acc_deleted_cert_countSumThe number of certificates deleted due to service account deletion.
citadel_server_authentication_failure_countSumThe number of authentication failures.
citadel_server_csr_countSumThe number of CSRs received by Citadel server.
citadel_server_csr_parsing_err_countSumThe number of errors occurred when parsing the CSR.
citadel_server_csr_sign_err_countSumThe number of errors occurred when signing the CSR.
citadel_server_id_extraction_err_countSumThe number of errors occurred when extracting the ID from CSR.
citadel_server_root_cert_expiry_timestampLastValueThe unix timestamp, in seconds, when Citadel root cert will expire. We set it to negative in case of internal error.
citadel_server_success_cert_issuance_countSumThe number of certificates issuances that have succeeded.
istio_buildLastValueIstio component build info
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