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There is an official version of this Cheat Sheet for Red Hat Application Services on the Red Hat Developers portal.

Don’t miss the chance to get it here.

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rhoas command-line interface (a.k.a Red Hat OpenShift Application Services CLI) can manage your application services from a terminal.

More details, or updated information, please check the GitHub repository here

To install it, review the Installing and configuring the rhoas CLI page.

Log (in|out)

rhoas login Log in to RHOAS

rhoas logout Log out to RHOAS

Apache Kafka Management

Manage and interact with Kafka instances, Kafka topics, Consumer Groups and Access Control Lists (ACL). Each Kafka service includes a full Apache Kafka cluster, bootstrap servers, and the configurations needed to connect to producer and consumer services.

rhoas kafka create --name my-kafka-instance Create a Kafka instance

rhoas kafka describe --name my-kafka-instance View configuration details of a Kafka instance

rhoas kafka list List all Kafka instances

rhoas kafka update --name my-kafka-instance [flags] Update configuration details for a Kafka instance.

rhoas kafka use --name my-kafka-instance Set the current Kafka instance

rhoas kafka delete --name my-kafka-instance Delete a Kafka instance

Apache Kafka Topic Management

Commands for manage Kafka Topics in the current Kafka instance.

rhoas kafka topic list List all topics

rhoas kafka topic create --name my-topic Create a Kafka topic

rhoas kafka topic describe --name my-topic Describe a Kafka topic

rhoas kafka topic update --name my-topic --retention-ms -1 Update configuration details for a Kafka topic

rhoas kafka topic consume --name my-topic --partition 0 --wait Consume messages from a Kafka topic

rhoas kafka topic produce --name my-topic --file="message.json" Produce a new message to a Kafka topic

rhoas kafka topic delete --name my-topic Delete a Kafka topic

Apache Kafka Consumer Group Management

Commands for manage Kafka Consumer Groups in the current Kafka instance.

rhoas kafka consumer-group list List all consumer groups

rhoas kafka consumer-group describe --id consumer-group-01 View detailed information for a consumer group and its members

rhoas kafka consumer-group reset-offset --id consumer-group-01 --topic my-topic --offset [earliest|latest|absolute|timestamp] Reset partition offsets for a consumer group in a particular Kafka topic

rhoas kafka consumer-group delete --id consumer-group-01 Delete a consumer group

Apache Kafka ACL Management

Commands for manage Kafka Access Control Lists (ACL) for users and service accounts in the current Kafka instance.

rhoas kafka acl create --operation all --permission allow --topic my-topic --user dev-user Create a Kafka ACL rule

rhoas kafka acl list List all Kafka ACL rules

rhoas kafka acl grant-access --producer --consumer --service-account ID --topic my-topic --group all Add ACL rules to grant users access to produce and consume from topics

rhoas kafka acl grant-admin --service-account ID Grant an account permissions to create and delete ACLs in the Kafka instance

rhoas kafka acl delete --operation all --permission allow --topic my-topic --service-account ID Delete Kafka ACLs matching the provided filters

Common flags available:

--operation string Set the ACL operation. Choose from: all, alter, alter-configs, create, delete, describe, describe-configs, read, write
--permission string Set the ACL permission. Choose from: allow, deny

Service Registry Management

Manage and interact with your Service Registry instances directly from the command line.

rhoas service-registry create --name my-registry Create Service Registry instance

rhoas service-registry list List Service Registry instances

rhoas service-registry describe --name my-registry Describe a Service Registry instance

rhoas service-registry use --name my-registry Use a Service Registry instance

rhoas service-registry delete --name my-registry Delete a Service Registry instance

Service Registry Artifact Management

Commands for manage Service Registry schema and API artifacts in the current selected Service Registry instance.

rhoas service-registry artifact create --artifact-id my-artifact --file my-artifact.asvc --type AVRO Create new artifact from file or standard input

rhoas service-registry artifact list List artifacts

rhoas service-registry artifact metadata-get --artifact-id my-artifact Get artifact metadata

rhoas service-registry artifact metadata-set --artifact-id my-artifact --description my-artifact Update artifact metadata

rhoas service-registry artifact download --global-id GLOBAL_ID Download artifacts from Service Registry using global identifiers

rhoas service-registry artifact get --artifact-id my-artifact Get artifact by ID, group, and version

rhoas service-registry artifact update --artifact-id my-artifact --file my-artifact.asvc Update artifact

rhoas service-registry artifact state-set --artifact-id my-artifact --state [DISABLED|ENABLED|DEPRECATED] Set artifact state

rhoas service-registry artifact versions --artifact-id my-artifact Get latest artifact versions by artifact-id and group

rhoas service-registry artifact export --output-file=export.zip Export all artifacts and metadata from Service Registry instance

rhoas service-registry artifact import --file=export.zip Import data into a Service Registry instance

rhoas service-registry artifact delete --artifact-id ID Deletes an artifact or all artifacts in a given group

Service Registry Role Management

Manage Service Registry roles using a set of commands that give users one of following permissions:

viewer: provides read access
manager: provides read and write access
admin: provides admin access as well as read and write access

rhoas service-registry role add --role manager --service-account ID Add or update principal role

rhoas service-registry role list List roles

rhoas service-registry role revoke --service-account ID Revoke role for principal

Service Registry Rule Management

Configure the validity and compatibility rules that govern artifact content.

rhoas service-registry rule list List the validity and compatibility rules

rhoas service-registry rule enable --rule-type=validity --config=syntax-only Enable validity and compatibility rules

rhoas service-registry rule describe --rule-type=validity Display the configuration details of a rule

rhoas service-registry rule update --rule-type=validity --config=syntax-only Update the configuration of rules

rhoas service-registry rule disable --rule-type=validity Disable validity and compatibility rules

For more information about supported Service Registry content and rules, see Supported Service Registry content and rules.

Service Registry Setting Management

Commands for manage settings for a Service Registry instance. The available settings include the following options:

registry.auth.authenticated-read-access.enabled: Specifies whether Service Registry grants at least read-only access to requests from any authenticated user in the same organization, regardless of their user role.
registry.auth.basic-auth-client-credentials.enabled: Specifies whether Service Registry users can authenticate using HTTP basic authentication, in addition to OAuth.
registry.auth.owner-only-authorization: Specifies whether only the user who creates an artifact can modify that artifact.
registry.ccompat.legacy-id-mode.enabled: Specifies whether the Confluent Schema Registry compatibility API uses globalId instead of contentId as an artifact identifier.

rhoas service-registry setting list List all the settings for a Service Registry

rhoas service-registry setting get --name SETTING-NAME Get value of the setting for a Service Registry instance

rhoas service-registry setting set --name SETTING-NAME --value SETTING-VALUE Set value of the setting for a Service Registry instance

Service Account Management

Manage service accounts. Service accounts enable you to connect your applications to a Kafka instance.

The credentials could be exported in the following structures:

env (default): Store credentials in an env file as environment variables
json: Store credentials in a JSON file
properties: Store credentials in a properties file, which is typically used in Java-related technologies
secret: Store credentials in a Kubernetes secret file

rhoas service-account create --short-description my-service-account --file-format env Create a service account with credentials that are saved to a file

rhoas service-account list List all service accounts

rhoas service-account describe --id ID View configuration details for a service account

rhoas service-account reset-credentials --id ID --file-format env Reset service account credentials

rhoas service-account delete --id ID Delete a service account

Configuration Management

Generate configuration files for the service context to connect with to be used with various tools and platforms

You must specify an output format into which the credentials will be stored:

env (default): Store credentials in an env file as environment variables
json: Store credentials in a JSON file
properties: Store credentials in a properties file, which is typically used in Java-related technologies
configmap: Store configurations in a Kubernetes ConfigMap file

rhoas generate-config --type json

Status Management

View the status of application services in a service context

rhoas status View the status of all application services in the current service context

rhoas status kafka View the status of all Kafka instances in a specific service context

rhoas status service-registry View the status of all Service Registry services in a specific service context

Context Management

Group your service instances into reusable contexts. Context can be used when running other rhoas commands or to generate service configuration.

A service context is a group of application service instances and their service identifiers. By using service contexts, you can group together application service instances that you want to use together.

rhoas context create --name sandbox-dev Create a service context

rhoas context list List service contexts

rhoas context use --name sandbox-dev Set the current context

rhoas context set-kafka --name=my-kafka-instance Set the current Kafka instance

rhoas context set-service-registry --name=my-registry Use a Service Registry instance

rhoas context status --name sandbox-dev View the status of application services in a service context

rhoas context unset --name sandbox-dev --services service-registry Unset services in context

rhoas context delete --name sandbox-dev Permanently delete a service context.

Miscellaneous

rhoas whoami View the username of the current user.

rhoas authtoken View the authentication token of the current user that can be used to

rhoas version Display version information about both the rhoas client

rhoas help _command_ Display help about a command

Enabling command completion

On Bash:

rhoas completion bash > rhoas_completions
sudo mv rhoas_completions /etc/bash_completion.d/rhoas

On Zsh:

rhoas completion zsh > "${fpath[1]}/_rhoas"
echo "autoload -U compinit; compinit" >> ~/.zshrc

On Fish:

rhoas completion fish > ~/.config/fish/completions/rhoas.fish

Global Flags

Most of the commands includes the following global flags

-o, --output string Specify the output format. Available: json, yaml, yml
-h, --help Show help for a command
-v, --verbose Enable verbose mode

Full Command API

The full list of commands, with options, flags, and examples is available from the App Services CLI Website.

Enjoy it!!!