Configuration Properties and Environment Variables

• Docker image environment variables
• Console properties reference
  • YAML Property Cases
  • Environment Variable Conversion
    • Conversion edge cases
  • Support of shell expansion in the YAML configuration file
  • Support of *_FILE environment variables
  • Global properties
  • Database properties
  • Session Lifetime Properties
  • Local users properties
  • Monitoring properties
    • Console Configuration for Cortex
    • Cortex Configuration
  • SSO properties
    • LDAP properties
    • OAuth2 properties
  • Kafka clusters properties
  • Kafka vendor specific properties
  • Schema registry properties
    • Amazon Glue schema registry properties
  • Kafka Connect properties
  • ksqlDB properties
  • Indexer properties
  • AuditLog export properties
  • Conduktor SQL properties

Docker image environment variables

Environment Variable	Description	Default Value	Since Version
Logs
CDK_DEBUG	Enable Console debug logs (equivalent to CDK_ROOT_LOG_LEVEL=DEBUG)	false	1.0.0
CDK_ROOT_LOG_LEVEL	Set the Console global log level (one of DEBUG, INFO, WARN, ERROR)	INFO	1.11.0
CDK_ROOT_LOG_FORMAT	Set logs format (one of TEXT, JSON)	TEXT	1.26.0
CDK_ROOT_LOG_COLOR	Enable ANSI colors in logs	true	1.11.0
CDK_LOG_TIMEZONE	Timezone for dates in logs (in Olson timezone ID format, e.g. Europe/Paris)	TZ environment variable or UTC if TZ is not defined	1.28.0
Proxy settings
CDK_HTTP_PROXY_HOST	Proxy hostname	∅	1.10.0
CDK_HTTP_PROXY_PORT	Proxy port	80	1.10.0
CDK_HTTP_NON_PROXY_HOSTS	List of hosts that should be reached directly, bypassing the proxy. Hosts must be separated by |, end with a * for wildcards, and not contain any /.	∅	1.10.0
CDK_HTTP_PROXY_USERNAME	Proxy username	∅	1.10.0
CDK_HTTP_PROXY_PASSWORD	Proxy password	∅	1.10.0
SSL
CDK_SSL_TRUSTSTORE_PATH	Truststore file path used by Console for Kafka, SSO, S3,... clients SSL/TLS verification	∅	1.5.0
CDK_SSL_TRUSTSTORE_PASSWORD	Truststore password (optional)	∅	1.5.0
CDK_SSL_TRUSTSTORE_TYPE	Truststore type (optional)	jks	1.5.0
CDK_SSL_DEBUG	Enable SSL/TLS debug logs	false	1.9.0
Java
CDK_GLOBAL_JAVA_OPTS	Custom JAVA_OPTS parameters passed to Console	∅	1.10.0
CONSOLE_MEMORY_OPTS	Configure Java memory options	-XX:+UseContainerSupport -XX:MaxRAMPercentage=80	1.18.0
Console
CDK_LISTENING_PORT	Console listening port	8080	1.2.0
CDK_VOLUME_DIR	Volume directory where Console stores data	/var/conduktor	1.0.2
CDK_IN_CONF_FILE	Console configuration file location	/opt/conduktor/default-platform-config.yaml	1.0.2
CDK_PLUGINS_DIR	Volume directory for Custom Deserializers plugins	/opt/conduktor/plugins	1.22.0
Nginx
PROXY_BUFFER_SIZE	Tune internal Nginx proxy_buffer_size	8k	1.16.0

Console properties reference

You have multiple options to configure Console: either via environment variables, or via a YAML configuration file. You can find a mapping of the configuration fields in the platform-config.yaml to environment variables below.

In case you set both environment variable and YAML value for a specific field, the environment variable will take precedence.

note

Lists start at index 0 and are provided using _idx_ syntax.

YAML Property Cases

YAML configuration supports multiple case formats (camelCase/kebab-case/lowercase) for property fragments such as:

• clusters[].schemaRegistry.ignoreUntrustedCertificate
• clusters[].schema-registry.ignore-untrusted-certificate
• clusters[].schemaregistry.ignoreuntrustedcertificate

All are valid and equivalent in YAML.

Environment Variable Conversion

At startup, Condutkor Console will merge environment variables and YAML based configuration files into one unified configuration. The conversion rules are as follows:

• Filter for environment variables that start with CDK_
• Remove the CDK_ prefix
• Convert the variable name to lowercase
• Replace _ with . for nested properties
• Replace _[0-9]+_ with [0-9]. for list properties. (Lists start at index 0)

For example, the environment variables CDK_DATABASE_URL will be converted to database.url, or CDK_SSO_OAUTH2_0_OPENID_ISSUER will be converted into sso.oauth2[0].openid.issuer. The YAML equivalent would be:

database:
  url: "..."
sso:
  oauth2:
    - openid:
        issuer: "..."

note

When converting environment variables to YAML configuration, environment variables in UPPER-KEBAB-CASE will be converted to kebab-case in the YAML configuration.

Conversion edge cases

Because of YAML multiple case formats support, the conversion rules have some edge cases when trying to mix environment variables and YAML configuration.

Extra rules when mixing environment variables and YAML configuration:

• Don't use camelCase in YAML configuration. Use kebab-case or lowercase
• Stick to one compatible case format for a given property fragment using the following compatibility matrix

Compatibility matrix:

YAML\Environment	UPPER-KEBAB-CASE	UPPERCASE
kebab-case	✅	🚫
lowercase	🚫	✅
camelCase	🚫	🚫

For example CDK_CLUSTERS_0_SCHEMAREGISTRY_IGNOREUNTRUSTEDCERTIFICATE environment variable :

# Is equivalent to and compatible with
clusters:
  - schemaregistry:
      ignoreuntrustedcertificate: true
# but not with
clusters:
  - schema-registry:
      ignore-untrusted-certificate: true

And conversely, for CDK_CLUSTERS_0_SCHEMA-REGISTRY_IGNORE-UNTRUSTED-CERTIFICATE environment variable.

That's why camelCase is not recommended in YAML configuration when mixing with environment variables.

Support of shell expansion in the YAML configuration file

Console supports shell expansion for environment variables and home tilde ~. This is useful if you have to use custom environment variables in your configuration.

For example, you can use the following syntax:

YAML configuration file

database:
  url: "jdbc:postgresql://${DB_LOGIN}:${DB_PWD}@${DB_HOST}:${DB_PORT:-5432}/${DB_NAME}"

with the following environment variables:

Environment Variable	Value
DB_LOGIN	usr
DB_PWD	pwd
DB_HOST	some_host
DB_NAME	cdk

This will be expanded to:

Expanded configuration

database:
  url: "jdbc:postgresql://usr:pwd@some_host:5432/cdk"

note

If you want to escape the shell expansion, you can use the following syntax: $$. For example, if you want admin.password to be secret$123, you should set admin.password: "secret$$123".

Support of *_FILE environment variables

When an environment variable ending with _FILE is set to a file path, its corresponding unprefixed environment variable will be replaced with the content of that file.

For instance, if you set CDK_LICENSE_FILE=/run/secrets/license, the value of CDK_LICENSE will be overridden by the content of the file located at /run/secrets/license.

warning

Exception: CDK_IN_CONF_FILE is not supported.

Global properties

Property	Description	Environment Variable	Mandatory	Type	Default
organization.name	Your organization's name	CDK_ORGANIZATION_NAME	false	string	"default"
admin.email	Your organization's root administrator account email	CDK_ADMIN_EMAIL	true	string	∅
admin.password	Your organization's root administrator account password. Must be at least 8 characters in length, and include at least 1 uppercase letter, 1 lowercase letter, 1 number, and 1 special symbol	CDK_ADMIN_PASSWORD	true	string	∅
license	Enterprise license key. If not provided, fallback to free plan.	CDK_LICENSE or LICENSE_KEY	false	string	∅
platform.external.url	Force Console external URL. Useful for SSO callback URL when using a reverse proxy. By default, Console will try to guess it automatically using X-Forwarded-* headers coming from upstream reverse proxy.	CDK_PLATFORM_EXTERNAL_URL	false	string	∅
platform.https.cert.path	Path to the SSL certificate file	CDK_PLATFORM_HTTPS_CERT_PATH	false	string	∅
platform.https.key.path	Path to the SSL private key file	CDK_PLATFORM_HTTPS_KEY_PATH	false	string	∅
enable_product_metrics	In order to improve Conduktor Console, we collect anonymous usage metrics. Set to false, this configuration disable all of our metrics collection.	CDK_ENABLE_PRODUCT_METRICS	false	boolean	true

tip

If you need more than what the free plan offers, you can contact us for a trial license.

Database properties

See database configuration documentation for more info.

Property	Description	Environment Variable	Mandatory	Type	Default
database.url	External PostgreSQL configuration URL in format [jdbc:]postgresql://[user[:password]@]netloc[:port][/dbname][?param1=value1&...]	CDK_DATABASE_URL	false	string	∅
database.host	External PostgreSQL server hostname	CDK_DATABASE_HOST	false	string	∅
database.port	External PostgreSQL server port	CDK_DATABASE_PORT	false	int	∅
database.name	External PostgreSQL database name	CDK_DATABASE_NAME	false	string	∅
database.username	External PostgreSQL login role	CDK_DATABASE_USERNAME	false	string	∅
database.password	External PostgreSQL login password	CDK_DATABASE_PASSWORD	false	string	∅
database.connection_timeout	External PostgreSQL connection timeout in seconds	CDK_DATABASE_CONNECTIONTIMEOUT	false	int	∅

Session Lifetime Properties

Optional properties for configuring session lifetime.

Property	Description	Environment Variable	Mandatory	Type	Default Value
auth.sessionLifetime	Max session lifetime in seconds	CDK_AUTH_SESSIONLIFETIME	false	int	259200
auth.idleTimeout	Max idle session time in seconds (access token lifetime). Should be lower than auth.sessionLifetime	CDK_AUTH_IDLETIMEOUT	false	int	259200

Local users properties

Optional local accounts list used to log on Console

Property	Description	Environment Variable	Mandatory	Type	Default Value
auth.local-users[].email	User login	CDK_AUTH_LOCALUSERS_0_EMAIL	true	string	"admin@conduktor.io"
auth.local-users[].password	User password	CDK_AUTH_LOCALUSERS_0_PASSWORD	true	string	"admin"

Monitoring properties

caution

Starting with version 1.18.0, if you want to benefit from our Monitoring capabilities (dashboard and alerts), you need to deploy a new image along with Console.

Before 1.18:

• conduktor/conduktor-platform:1.17.3 or below

Starting with 1.18:

• conduktor/conduktor-console:1.18.0 or above and
• conduktor/conduktor-console-cortex:1.18.0 or above

This new image is based on Cortex and preconfigured to run with Console. Cortex is a custom implementation of Prometheus used in several production systems including Amazon Managed Service for Prometheus (AMP).

You can choose to not deploy conduktor/conduktor-console-cortex (Cortex) image. In this case, you will not be able to access to the following pages anymore:

The configuration is split in 2 chapters:

• Console Configuration for Cortex conduktor/conduktor-console
• Cortex Configuration conduktor/conduktor-console-cortex

Console Configuration for Cortex

First, we need to configure Console to connect to Cortex services. Cortex ports are configured like this by default:

• Query port 9009
• Alert Manager port 9010

Property	Description	Environment Variable	Mandatory	Type	Default
monitoring.cortex-url	Cortex Search Query URL with port 9009	CDK_MONITORING_CORTEXURL	true	string	∅
monitoring.alert-manager-url	Cortex Alert Manager URL with port 9010	CDK_MONITORING_ALERTMANAGERURL	true	string	∅
monitoring.callback-url	Console API	CDK_MONITORING_CALLBACKURL	true	string	∅
monitoring.notifications-callback-url	Where the Slack notification should redirect	CDK_MONITORING_NOTIFICATIONCALLBACKURL	true	string	∅
monitoring.clusters-refresh-interval	Refresh rate in seconds for metrics	CDK_MONITORING_CLUSTERREFRESHINTERVAL	false	int	60

Cortex Configuration

See Cortex configuration page for more info.

SSO properties

See authentication documentation for snippets.

Property	Description	Environment Variable	Mandatory	Type	Default
sso.ignoreUntrustedCertificate	Disable SSL checks	CDK_SSO_IGNOREUNTRUSTEDCERTIFICATE	false	boolean	false
sso.trustedCertificates	SSL public certificates for SSO authentication (LDAPS and OAuth2) as PEM	CDK_SSO_TRUSTEDCERTIFICATES	false	string	∅

LDAP properties

Property	Description	Environment Variable	Mandatory	Type	Default
sso.ldap[].name	Ldap connection name	CDK_SSO_LDAP_0_NAME	true	string	∅
sso.ldap[].server	Ldap server host and port	CDK_SSO_LDAP_0_SERVER	true	string	∅
sso.ldap[].managerDn	Sets the manager DN	CDK_SSO_LDAP_0_MANAGERDN	true	string	∅
sso.ldap[].managerPassword	Sets the manager password	CDK_SSO_LDAP_0_MANAGERPASSWORD	true	string	∅
sso.ldap[].search-subtree	Sets if the subtree should be searched.	CDK_SSO_LDAP_0_SEARCHSUBTREE	false	boolean	true
sso.ldap[].search-base	Sets the base DN to search.	CDK_SSO_LDAP_0_SEARCHBASE	true	string	∅
sso.ldap[].search-filter	Sets the search filter. By default, the filter is set to (uid={0}) for users using class type InetOrgPerson.	CDK_SSO_LDAP_0_SEARCHFILTER	false	string	"(uid={0})"
sso.ldap[].search-attributes	Sets the attributes list to return. By default, all attributes are returned. Platform search for uid, cn, mail, email, givenName, sn, displayName attributes to map into user token.	CDK_SSO_LDAP_0_SEARCHATTRIBUTES	false	string array	[]
sso.ldap[].groups-enabled	Sets if group search is enabled.	CDK_SSO_LDAP_0_GROUPSENABLED	false	boolean	false
sso.ldap[].groups-subtree	Sets if the subtree should be searched.	CDK_SSO_LDAP_0_GROUPSSUBTREE	false	boolean	true
sso.ldap[].groups-base	Sets the base DN to search from.	CDK_SSO_LDAP_0_GROUPSBASE	true	string	∅
sso.ldap[].groups-filter	Sets the group search filter. If using group class type GroupOfUniqueNames use the filter "uniqueMember={0}". For group class GroupOfNames use "member={0}".	CDK_SSO_LDAP_0_GROUPSFILTER	false	string	"uniquemember={0}"
sso.ldap[].groups-filter-attribute	Sets the name of the user attribute to bind to the group search filter. Defaults to the user’s DN.	CDK_SSO_LDAP_0_GROUPSFILTERATTRIBUTE	false	string	∅
sso.ldap[].groups-attribute	Sets the group attribute name. Defaults to cn.	CDK_SSO_LDAP_0_GROUPSATTRIBUTE	false	string	"cn"
sso.ldap[].properties	Additional properties that will be passed to identity provider context.	CDK_SSO_LDAP_0_PROPERTIES	false	dictionary	∅

OAuth2 properties

Property	Description	Environment Variable	Mandatory	Type	Default
sso.oauth2[].name	OAuth2 connection name	CDK_SSO_OAUTH2_0_NAME	true	string	∅
sso.oauth2[].default	Use as default	CDK_SSO_OAUTH2_0_DEFAULT	true	boolean	∅
sso.oauth2[].client-id	OAuth2 client ID	CDK_SSO_OAUTH2_0_CLIENTID	true	string	∅
sso.oauth2[].client-secret	OAuth2 client secret	CDK_SSO_OAUTH2_0_CLIENTSECRET	true	string	∅
sso.oauth2[].openid.issuer	Issuer to check on token	CDK_SSO_OAUTH2_0_OPENID_ISSUER	true	string	∅
sso.oauth2[].scopes	Scopes to be requested in the client credentials request	CDK_SSO_OAUTH2_0_SCOPES	true	string	[]
sso.oauth2[].groups-claim	Group attribute from your identity provider	CDK_SSO_OAUTH2_0_GROUPSCLAIM	false	string	∅
sso.oauth2[].username-claim	Email attribute from your identity provider	CDK_SSO_OAUTH2_0_USERNAMECLAIM	false	string	email
sso.oauth2[].allow-unsigned-id-tokens	Allow unsigned ID tokens	CDK_SSO_OAUTH2_0_ALLOWUNSIGNEDIDTOKENS	false	boolean	false
sso.oauth2[].preferred-jws-algorithm	Configure preferred JWS algorithm	CDK_SSO_OAUTH2_0_PREFERREDJWSALGORITHM	false	string one of: "HS256", "HS384", "HS512", "RS256", "RS384", "RS512", "ES256", "ES256K", "ES384", "ES512", "PS256", "PS384", "PS512", "EdDSA"	∅
sso.oauth2-logout	Wether the central identity provider logout should be called or not	CDK_SSO_OAUTH2LOGOUT	false	boolean	true

Kafka clusters properties

caution

The new recommended way to configure clusters is through the CLI and YAML manifests. Check the associated KafkaCluster documentation

For more information on configuring your Kafka clusters using GitOps processes, see GitOps: Managing Cluster Configurations.

You can find sample configurations on the Configuration Snippets page.

Property	Description	Environment Variable	Mandatory	Type	Default
clusters[].id	String used to uniquely identify your Kafka cluster	CDK_CLUSTERS_0_ID	true	string	∅
clusters[].name	Alias or user-friendly name for your Kafka cluster	CDK_CLUSTERS_0_NAME	true	string	∅
clusters[].color	Attach a color to associate with your cluster in the UI	CDK_CLUSTERS_0_COLOR	false	string in hexadecimal format (#FFFFFF)	random
clusters[].ignoreUntrustedCertificate	Skip SSL certificate validation	CDK_CLUSTERS_0_IGNOREUNTRUSTEDCERTIFICATE	false	boolean	false
clusters[].bootstrapServers	List of host:port for your Kafka brokers separated by coma ,	CDK_CLUSTERS_0_BOOTSTRAPSERVERS	true	string	∅
clusters[].properties	Any cluster configuration properties	CDK_CLUSTERS_0_PROPERTIES	false	string where each line is a property	∅

Kafka vendor specific properties

Note that you only need to set the Kafka cluster properties to use the core features of Console.

However, you can get additional benefits by setting the flavor of your cluster. This corresponds to the Provider tab of your cluster configuration in Console.

Property	Description	Environment Variable	Mandatory	Type	Default
clusters[].kafkaFlavor.type	Kafka flavor type, one of Confluent, Aiven, Gateway	CDK_CLUSTERS_0_KAFKAFLAVOR_TYPE	false	string	∅
Flavor is Confluent	Manage Confluent Cloud service accounts, API keys, and ACLs
clusters[].kafkaFlavor.key	Confluent Cloud API Key	CDK_CLUSTERS_0_KAFKAFLAVOR_KEY	true	string	∅
clusters[].kafkaFlavor.secret	Confluent Cloud API Secret	CDK_CLUSTERS_0_KAFKAFLAVOR_SECRET	true	string	∅
clusters[].kafkaFlavor.confluentEnvironmentId	Confluent Environment ID	CDK_CLUSTERS_0_KAFKAFLAVOR_CONFLUENTENVIRONMENTID	true	string	∅
clusters[].kafkaFlavor.confluentClusterId	Confluent Cluster ID	CDK_CLUSTERS_0_KAFKAFLAVOR_CONFLUENTCLUSTERID	true	string	∅
Flavor is Aiven	Manage Aiven service accounts and ACLs
clusters[].kafkaFlavor.apiToken	Aiven API token	CDK_CLUSTERS_0_KAFKAFLAVOR_APITOKEN	true	string	∅
clusters[].kafkaFlavor.project	Aiven project	CDK_CLUSTERS_0_KAFKAFLAVOR_PROJECT	true	string	∅
clusters[].kafkaFlavor.serviceName	Aiven service name	CDK_CLUSTERS_0_KAFKAFLAVOR_SERVICENAME	true	string	∅
Flavor is Gateway	Manage Conduktor Gateway interceptors
clusters[].kafkaFlavor.url	Gateway API endpoint URL	CDK_CLUSTERS_0_KAFKAFLAVOR_URL	true	string	∅
clusters[].kafkaFlavor.user	Gateway API username	CDK_CLUSTERS_0_KAFKAFLAVOR_USER	true	string	∅
clusters[].kafkaFlavor.password	Gateway API password	CDK_CLUSTERS_0_KAFKAFLAVOR_PASSWORD	true	string	∅
clusters[].kafkaFlavor.virtualCluster	Gateway virtual cluster	CDK_CLUSTERS_0_KAFKAFLAVOR_VIRTUALCLUSTER	true	string	∅

Schema registry properties

Property	Description	Environment Variable	Mandatory	Type	Default
clusters[].schemaRegistry.url	The schema registry URL	CDK_CLUSTERS_0_SCHEMAREGISTRY_URL	true	string	∅
clusters[].schemaRegistry.ignoreUntrustedCertificate	Skip SSL certificate validation	CDK_CLUSTERS_0_SCHEMAREGISTRY_IGNOREUNTRUSTEDCERTIFICATE	false	boolean	false
clusters[].schemaRegistry.properties	Any schema registry configuration parameters	CDK_CLUSTERS_0_SCHEMAREGISTRY_PROPERTIES	false	string where each line is a property	∅
Basic Authentication
clusters[].schemaRegistry.security.username	Basic auth username	CDK_CLUSTERS_0_SCHEMAREGISTRY_SECURITY_USERNAME	false	string	∅
clusters[].schemaRegistry.security.password	Basic auth password	CDK_CLUSTERS_0_SCHEMAREGISTRY_SECURITY_PASSWORD	false	string	∅
Bearer Token Authentication
clusters[].schemaRegistry.security.token	Bearer auth token	CDK_CLUSTERS_0_SCHEMAREGISTRY_SECURITY_TOKEN	false	string	∅
mTLS Authentication
clusters[].schemaRegistry.security.key	Access Key	CDK_CLUSTERS_0_SCHEMAREGISTRY_SECURITY_KEY	false	string	∅
clusters[].schemaRegistry.security.certificateChain	Access certificate	CDK_CLUSTERS_0_SCHEMAREGISTRY_SECURITY_CERTIFICATECHAIN	false	string	∅

Amazon Glue schema registry properties

Property	Description	Environment Variable	Mandatory	Type	Default
clusters[].schemaRegistry.region	The Glue schema registry region	CDK_CLUSTERS_0_SCHEMAREGISTRY_REGION	true	string	∅
clusters[].schemaRegistry.registryName	The Glue schema registry name	CDK_CLUSTERS_0_SCHEMAREGISTRY_REGISTRYNAME	false	string	∅
clusters[].schemaRegistry.amazonSecurity.type	Authentication with credentials, one of Credentials, FromContext, FromRole	CDK_CLUSTERS_0_SCHEMAREGISTRY_AMAZONSECURITY_TYPE	true	string	∅
Credentials Security
clusters[].schemaRegistry.amazonSecurity.accessKeyId	Credentials auth access key	CDK_CLUSTERS_0_SCHEMAREGISTRY_AMAZONSECURITY_ACCESSKEYID	true	string	∅
clusters[].schemaRegistry.amazonSecurity.secretKey	Credentials auth secret key	CDK_CLUSTERS_0_SCHEMAREGISTRY_AMAZONSECURITY_SECRETKEY	true	string	∅
FromContext Security
clusters[].schemaRegistry.amazonSecurity.profile	Authentication profile	CDK_CLUSTERS_0_SCHEMAREGISTRY_AMAZONSECURITY_PROFILE	false	string	∅
FromRole Security
clusters[].schemaRegistry.amazonSecurity.role	Authentication role	CDK_CLUSTERS_0_SCHEMAREGISTRY_AMAZONSECURITY_ROLE	true	string	∅

Kafka Connect properties

Property	Description	Environment Variable	Mandatory	Type	Default
clusters[].kafkaConnects[].id	String used to uniquely identify your Kafka Connect	CDK_CLUSTERS_0_KAFKACONNECTS_0_ID	true	string	∅
clusters[].kafkaConnects[].name	Name your Kafka Connect	CDK_CLUSTERS_0_KAFKACONNECTS_0_NAME	true	string	∅
clusters[].kafkaConnects[].url	The Kafka connect URL	CDK_CLUSTERS_0_KAFKACONNECTS_0_URL	true	string	∅
clusters[].kafkaConnects[].headers	Optional additional headers (ie: X-API-Token=123,X-From=Test)	CDK_CLUSTERS_0_KAFKACONNECTS_0_HEADERS	false	string	∅
clusters[].kafkaConnects[].ignoreUntrustedCertificate	Skip SSL certificate validation	CDK_CLUSTERS_0_KAFKACONNECTS_0_IGNOREUNTRUSTEDCERTIFICATE	false	boolean	false
Basic Authentication
clusters[].kafkaConnects[].security.username	Basic auth username	CDK_CLUSTERS_0_KAFKACONNECTS_0_SECURITY_USERNAME	false	string	∅
clusters[].kafkaConnects[].security.password	Basic auth password	CDK_CLUSTERS_0_KAFKACONNECTS_0_SECURITY_PASSWORD	false	string	∅
Bearer Token Authentication
clusters[].kafkaConnects[].security.token	Bearer token	CDK_CLUSTERS_0_KAFKACONNECTS_0_SECURITY_TOKEN	false	string	∅
mTLS Authentication
clusters[].kafkaConnects[].security.key	Access key	CDK_CLUSTERS_0_KAFKACONNECTS_0_SECURITY_KEY	false	string	∅
clusters[].kafkaConnects[].security.certificateChain	Access certificate	CDK_CLUSTERS_0_KAFKACONNECTS_0_SECURITY_CERTIFICATECHAIN	false	string	∅

ksqlDB properties

We support ksqlDB integration as of Conduktor Console 1.21.0.

Property	Description	Environment Variable	Mandatory	Type	Default
clusters[].ksqlDBs[].id	String used to uniquely identify your ksqlDB Cluster	CDK_CLUSTERS_0_KSQLDBS_0_ID	true	string	∅
clusters[].ksqlDBs[].name	Name of your ksqlDB Cluster	CDK_CLUSTERS_0_KSQLDBS_0_NAME	true	string	∅
clusters[].ksqlDBs[].url	The ksqlDB API URL	CDK_CLUSTERS_0_KSQLDBS_0_URL	true	string	∅
clusters[].ksqlDBs[].ignoreUntrustedCertificate	Skip SSL certificate validation	CDK_CLUSTERS_0_KSQLDBS_0_IGNOREUNTRUSTEDCERTIFICATE	false	boolean	false
Basic Authentication
clusters[].ksqlDBs[].security.username	Basic auth username	CDK_CLUSTERS_0_KSQLDBS_0_SECURITY_USERNAME	false	string	∅
clusters[].ksqlDBs[].security.password	Basic auth password	CDK_CLUSTERS_0_KSQLDBS_0_SECURITY_PASSWORD	false	string	∅
Bearer Token Authentication
clusters[].ksqlDBs[].security.token	Bearer token	CDK_CLUSTERS_0_KSQLDBS_0_SECURITY_TOKEN	false	string	∅
mTLS Authentication
clusters[].ksqlDBs[].security.key	Access key	CDK_CLUSTERS_0_KSQLDBS_0_SECURITY_KEY	false	string	∅
clusters[].ksqlDBs[].security.certificateChain	Access certificate	CDK_CLUSTERS_0_KSQLDBS_0_SECURITY_CERTIFICATECHAIN	false	string	∅

Indexer properties

The indexer is the internal process of Conduktor Console that fetches metadata from your Kafka cluster (e.g. topics, consumer groups, subjects). You should modify these parameters only if you see an issue with the performance of the indexer.

Property	Description	Environment Variable	Mandatory	Type	Default
Lag exporter
lagexporter.frequency	Frequency in seconds of the execution of the lag exporter	CDK_LAGEXPORTER_FREQUENCY	false	int	30
lagexporter.clusterparallelism	Number of clusters indexed in parallel for the lag exporter	CDK_LAGEXPORTER_CLUSTERPARALLELISM	false	int	1
lagexporter.indexertimeout	Lag exporter timeout in seconds	CDK_LAGEXPORTER_INDEXERTIMEOUT	false	int	300 (5 minutes)
Metadata indexer
metadataindexer.frequency	Frequency in seconds of the execution of the metadata indexer	CDK_METADATAINDEXER_FREQUENCY	false	int	30
metadataindexer.clusterparallelism	Number of clusters indexed in parallel for the metadata indexer	CDK_METADATAINDEXER_CLUSTERPARALLELISM	false	int	1
metadataindexer.indexertimeout	Metadata indexer timeout in seconds	CDK_METADATAINDEXER_INDEXERTIMEOUT	false	int	300 (5 minutes)
Monitoring indexer
monitoringconfig.frequency	Frequency in seconds of the execution of the monitoring indexer	CDK_MONITORINGCONFIG_FREQUENCY	false	int	30
monitoringconfig.clusterparallelism	Number of clusters indexed in parallel for the monitoring indexer	CDK_MONITORINGCONFIG_CLUSTERPARALLELISM	false	int	1
monitoringconfig.indexertimeout	Monitoring indexer timeout in seconds	CDK_MONITORINGCONFIG_INDEXERTIMEOUT	false	int	300 (5 minutes)
Schema registry indexer
registryindexer.frequency	Frequency in seconds of the execution of the schema registry indexer	CDK_REGISTRYINDEXER_FREQUENCY	false	int	30
registryindexer.clusterparallelism	Number of clusters indexed in parallel for the schema registry indexer	CDK_REGISTRYINDEXER_CLUSTERPARALLELISM	false	int	1
registryindexer.indexertimeout	Schema registry indexer timeout in seconds	CDK_REGISTRYINDEXER_INDEXERTIMEOUT	false	int	300 (5 minutes)
Kafka connect indexer
connectindexer.frequency	Frequency in seconds of the execution of the kafka connect indexer	CDK_CONNECTINDEXER_FREQUENCY	false	int	30
connectindexer.clusterparallelism	Number of clusters indexed in parallel for the kafka connect indexer	CDK_CONNECTINDEXER_CLUSTERPARALLELISM	false	int	1
connectindexer.indexertimeout	Kafka connect indexer timeout in seconds	CDK_CONNECTINDEXER_INDEXERTIMEOUT	false	int	300 (5 minutes)
Kafka admin client configuration
kafka_admin.list_consumer_group_offsets_batch_size	How many consumer groups offset to fetch in a single query. Old versions of Kafka may time out when fetching too many offsets at once.	CDK_KAFKAADMIN_LISTCONSUMERGROUPOFFSETSBATCHSIZE	false	int	100
kafka_admin.batch_parallel_size	Maximum of batched requests that can be sent in parallel	CDK_KAFKAADMIN_BATCHPARALLELSIZE	false	int	5
kafka_admin.record_size_limit	Maximum size in bytes of a single message to display in the consume page. For larger messages, you'll get a link to open in a dedicated page.	CDK_KAFKAADMIN_RECORDSIZELIMIT	false	int	102400 (bytes)

AuditLog export properties

The audit log can be exported to a Kafka topic, once configured in Console. For details on the available exportable events refer to: Exportable audit log events.

Property	Description	Environment Variable	Mandatory	Type	Default
audit_log_publisher.cluster	The cluster ID where the audit logs will be exported	CDK_AUDITLOGPUBLISHER_CLUSTER	false	string	∅
audit_log_publisher.topicName	The topic name where the audit logs will be exported	CDK_AUDITLOGPUBLISHER_TOPICNAME	false	string	∅
audit_log_publisher.topicConfig.partition	The number of partitions for the audit log topic	CDK_AUDITLOGPUBLISHER_TOPICCONFIG_PARTITION	false	int	1
audit_log_publisher.topicConfig.replicationFactor	The replication factor for the audit log topic	CDK_AUDITLOGPUBLISHER_TOPICCONFIG_REPLICATIONFACTOR	false	int	1

Conduktor SQL properties

In order to use Conduktor SQL, you need to configure a second database to store the Topics data.
You can configure Conduktor SQL Database using CDK_KAFKASQL_DATABASE_URL or alternatively, set each values individually CDK_KAFKASQL_DATABASE_*.

Check the Configure SQL guide to get started.

Property	Description	Environment Variable	Mandatory	Type	Default
kafka_sql.database.url	External PostgreSQL configuration URL in format [jdbc:]postgresql://[user[:password]@]netloc[:port][/dbname][?param1=value1&...]	CDK_KAFKASQL_DATABASE_URL	false	string	∅
kafka_sql.database.host	External PostgreSQL server hostname	CDK_KAFKASQL_DATABASE_HOST	false	string	∅
kafka_sql.database.port	External PostgreSQL server port	CDK_KAFKASQL_DATABASE_PORT	false	int	∅
kafka_sql.database.name	External PostgreSQL database name	CDK_KAFKASQL_DATABASE_NAME	false	string	∅
kafka_sql.database.username	External PostgreSQL login role	CDK_KAFKASQL_DATABASE_USERNAME	false	string	∅
kafka_sql.database.password	External PostgreSQL login password	CDK_KAFKASQL_DATABASE_PASSWORD	false	string	∅
kafka_sql.database.connection_timeout	External PostgreSQL connection timeout in seconds	CDK_KAFKASQL_DATABASE_CONNECTIONTIMEOUT	false	int	∅
kafka_sql.commit_offset_every_in_sec	Frequency at which Conduktor SQL commits offsets into Kafka and flushes rows in the database	CDK_KAFKASQL_COMMITOFFSETEVERYINSEC	false	int	30 (seconds)
kafka_sql.clean_expired_record_every_in_hour	How often to check for expired records and delete them from the Database	CDK_KAFKASQL_CLEAN-EXPIRED-RECORD-EVERY-IN-HOUR	false	int	1 (hour)
kafka_sql.refresh_topic_configuration_every_in_sec	Frequency at which Conduktor SQL looks for new topics to start indexing or stop indexing	CDK_KAFKASQL_REFRESHTOPICCONFIGURATIONEVERYINSEC	false	int	30 (seconds)
kafka_sql.consumer_group_id	Consumer group used to identify Conduktor SQL	CDK_KAFKASQL_CONSUMER-GROUP-ID	false	string	conduktor-sql