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Usage: Litmusctl v0.12.0 (Interactive mode)

Notes:

  • For litmusctl v0.12.0 or latest

litmusctl Syntax

litmusctl has a syntax to use as follows:

litmusctl [command] [TYPE] [flags]
  • Command: refers to what you do want to perform (connect, create, get and config)
  • Type: refers to the feature type you are performing a command against (chaos-delegate, project etc.)
  • Flags: It takes some additional information for resource operations. For example, --installation-mode allows you to specify an installation mode.

Litmusctl is using the .litmusconfig config file to manage multiple accounts

  1. If the --config flag is set, then only the given file is loaded. The flag may only be set once and no merging takes place.
  2. Otherwise, the ${HOME}/.litmusconfig file is used, and no merging takes place.

Litmusctl supports both interactive and non-interactive(flag based) modes.

Only litmusctl connect chaos-delegate command needs --non-interactive flag, other commands don't need this flag to be in non-interactive mode. If mandatory flags aren't passed, then litmusctl takes input in an interactive mode.

Steps to connect a Chaos Delegate

  • To setup an account with litmusctl
litmusctl config set-account

Next, you need to enter ChaosCenter details to login into your ChaosCenter account. Fields to be filled in:

ChaosCenter URL: Enter the URL used to access the ChaosCenter.

Example, https://preview.litmuschaos.io/

Username: Enter your ChaosCenter username.
Password: Enter your ChaosCenter password.

Host endpoint where litmus is installed: https://preview.litmuschaos.io/
Username [Default: admin]: admin

Password:
account.username/admin configured
  • To connect a Chaos Delegate in a cluster mode
litmusctl connect chaos-delegate

There will be a list of existing projects displayed on the terminal. Select the desired project by entering the sequence number indicated against it.

Project list:
1.  Project-Admin

Select a project [Range: 1-1]: 1

Next, select the installation mode based on your requirement by entering the sequence number indicated against it.

Litmusctl can install a Chaos Delegate in two different modes.

  • cluster mode: With this mode, the Chaos Delegate can run the chaos in any namespace. It installs appropriate cluster roles and cluster role bindings to achieve this mode.

  • namespace mode: With this mode, the Chaos Delegate can run the chaos in its namespace. It installs appropriate roles and role bindings to achieve this mode.

Note: With namespace mode, the user needs to create the namespace to install the Chaos Delegate as a prerequisite.

Installation Modes:
1. Cluster
2. Namespace

Select Mode [Default: cluster] [Range: 1-2]: 1

🏃 Running prerequisites check....
🔑 clusterrole ✅
🔑 clusterrolebinding ✅
🌟 Sufficient permissions. Installing the Chaos Delegate...

Next, enter the details of the new Chaos Delegate.

Fields to be filled in

Field Description
Chaos Delegate Name: Enter a name of the Chaos Delegate which needs to be unique across the project
Chaos Delegate Description: Fill in details about the Chaos Delegate
Skip SSL verification Choose whether Chaos Delegate will skip SSL/TLS verification
Node Selector: To deploy the Chaos Delegate on a particular node based on the node selector labels
Platform Name: Enter the platform name on which this Chaos Delegate is hosted. For example, AWS, GCP, Rancher etc.
Enter the namespace: You can either enter an existing namespace or enter a new namespace. In cases where the namespace does not exist, litmusctl creates it for you
Enter service account: You can either enter an existing or new service account 
Enter the details of the Chaos Delegate

Chaos Delegate Name: New-Chaos-Delegate

Chaos Delegate Description: This is a new Chaos Delegate

Do you want Chaos Delegate to skip SSL/TLS check (Y/N) (Default: N): n

Do you want NodeSelector to be added in the Chaos Delegate deployments (Y/N) (Default: N): N

Platform List:
1. AWS
2. GKE
3. Openshift
4. Rancher
5. Others

Select a platform [Default: Others] [Range: 1-5]: 5

Enter the namespace (new or existing namespace) [Default: litmus]:
👍 Continuing with litmus namespace

Once, all these steps are implemented you will be able to see a summary of all the entered fields. After verification of these details, you can proceed with the connection of the Chaos Delegate by entering Y. The process of connection might take up to a few seconds.

Enter service account [Default: litmus]:

📌 Summary
Chaos Delegate Name: New-Chaos-Delegate
Chaos Delegate Description: This is a new Chaos Delegate
Chaos Delegate SSL/TLS Skip: false
Platform Name: Others
Namespace:  litmus
Service Account:  litmus (new)

Installation Mode: cluster

🤷 Do you want to continue with the above details? [Y/N]: Y
👍 Continuing Chaos Infrastructure connection!!

💡 Connecting Chaos Infrastructure to ChaosCenter.
🏃 Chaos Delegate is running!!

🚀 Chaos Infrastructure Connection Successful!! 🎉

Verify the new Chaos Delegate Connection**

To verify, if the connection process was successful you can view the list of connected Chaos Delegates from the Targets section on your ChaosCenter and ensure that the connected Chaos Delegate is in Active State.

Steps to create a Chaos Scenario

  • To setup an account with litmusctl
litmusctl config set-account --endpoint="" --username="" --password=""
  • To create a Chaos Scenario by passing a manifest file

Note:

  • To get project-id, apply litmusctl get projects
  • To get chaos-delegate-id, apply litmusctl get chaos-delegates --project-id=""
litmusctl create chaos-scenario -f custom-chaos-scenario.yml --project-id="" --chaos-delegate-id=""

Additional commands

  • To view the current configuration of .litmusconfig, type:
litmusctl config view

Output:

accounts:
- users:
  - expires_in: "1626897027"
    token: eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2MjY4OTcwMjcsInJvbGUiOiJhZG1pbiIsInVpZCI6ImVlODZkYTljLTNmODAtNGRmMy04YzQyLTExNzlhODIzOTVhOSIsInVzZXJuYW1lIjoiYWRtaW4ifQ.O_hFcIhxP4rhyUN9NEVlQmWesoWlpgHpPFL58VbJHnhvJllP5_MNPbrRMKyFvzW3hANgXK2u8437u
    username: admin
  - expires_in: "1626944602"
    token: eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2MjY5NDQ2MDIsInJvbGUiOiJ1c2VyIiwidWlkIjoiNjFmMDY4M2YtZWY0OC00MGE1LWIzMjgtZTU2ZDA2NjM1MTE4IiwidXNlcm5hbWUiOiJyYWoifQ.pks7xjkFdJD649RjCBwQuPF1_QMoryDWixSKx4tPAqXI75ns4sc-yGhMdbEvIZ3AJSvDaqTa47XTC6c8R
    username: litmus-user
  endpoint: https://preview.litmuschaos.io
apiVersion: v1
current-account: https://preview.litmuschaos.io
current-user: litmus-user
kind: Config
  • To get an overview of the accounts available within .litmusconfig, use the config get-accounts command:
litmusctl config get-accounts

Output:

CURRENT  ENDPOINT                         USERNAME  EXPIRESIN
         https://preview.litmuschaos.io   admin     2021-07-22 01:20:27 +0530 IST
*        https://preview.litmuschaos.io   raj       2021-07-22 14:33:22 +0530 IST
  • To alter the current account use the use-account command:
litmusctl config use-account

Host endpoint where litmus is installed: https://preview.litmuschaos.io

Username: admin
  • To create a project, apply the following command :
litmusctl create project

Enter a project name: new
  • To view all the projects with the user, use the get projects command.
litmusctl get projects

Output:

PROJECT ID                                PROJECT NAME       CREATEDAT
50addd40-8767-448c-a91a-5071543a2d8e      Developer Project  2021-07-21 14:38:51 +0530 IST
7a4a259a-1ae5-4204-ae83-89a8838eaec3      DevOps Project     2021-07-21 14:39:14 +0530 IST
  • To get an overview of the Chaos Delegates available within a project, issue the following command.
litmusctl get chaos-delegates

Enter the Project ID: 50addd40-8767-448c-a91a-5071543a2d8e

Output:

CHAOS DELEGATE ID                      CHAOS DELEGATE NAME    STATUS     REGISTRATION
55ecc7f2-2754-43aa-8e12-6903e4c6183a   chaos-delegate-1            ACTIVE     REGISTERED
13dsf3d1-5324-54af-4g23-5331g5v2364f   chaos-delegate-2            INACTIVE   NOT REGISTERED
  • To disconnect an Chaos Delegate, issue the following command..
litmusctl disconnect chaos-delegate <chaos-delegate-id> --project-id=""

Output:

🚀 Chaos Delegate successfully disconnected.
  • To list the created Chaos Scenarios within a project, issue the following command.
litmusctl get chaos-scenarios --project-id=""

Output:

CHAOS SCENARIO ID                         CHAOS SCENARIO NAME                   CHAOS SCENARIO TYPE     NEXT SCHEDULE CHAOS DELEGATE ID                             CHAOS DELEGATE NAME LAST UPDATED BY
9433b48c-4ab7-4544-8dab-4a7237619e09 custom-chaos-scenario-1627980541 Non Cron Chaos Scenario None          f9799723-29f1-454c-b830-ae8ba7ee4c30 Self-Chaos-delegate admin

Showing 1 of 1 Chaos Scenarios
  • To list all the Chaos Scenario runs within a project, issue the following command.
litmusctl get chaos-scenario-runs  --project-id=""

Output:

CHAOS SCENARIO RUN ID                      STATUS  RESILIENCY SCORE CHAOS SCENARIO ID                          CHAOS SCENARIO NAME                    TARGET CHAOS DELEGATE LAST RUN                 EXECUTED BY
8ceb712c-1ed4-40e6-adc4-01f78d281506 Running 0.00             9433b48c-4ab7-4544-8dab-4a7237619e09 custom-chaos-scenario-1627980541 Self-Chaos-Delegate   June 1 2022, 10:28:02 pm admin

Showing 1 of 1 Chaos Scenario runs
  • To describe a particular Chaos Scenario, issue the following command.
litmusctl describe chaos-scenario <chaos-scenario-id> --project-id=""

Output:

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
    creationTimestamp: null
    labels:
        cluster_id: f9799723-29f1-454c-b830-ae8ba7ee4c30
        subject: custom-chaos-scenario_litmus
        workflow_id: 9433b48c-4ab7-4544-8dab-4a7237619e09
        workflows.argoproj.io/controller-instanceid: f9799723-29f1-454c-b830-ae8ba7ee4c30
    name: custom-chaos-scenario-1627980541
    namespace: litmus
spec:
...
  • To delete a particular Chaos Scenario, issue the following command.
litmusctl delete chaos-scenario <chaos-scenario-id> --project-id=""

Output:

🚀 Chaos Scenario successfully deleted.

Flag details

Flag Short Flag Type Description
--cacert String custom ca certificate used by litmusctl for communicating with portal
--config String config file (default is $HOME/.litmusctl)
--skipSSL Boolean litmusctl will skip ssl/tls verification while communicating with portal
--help -h help for litmusctl

For more information related to flags, Use litmusctl --help.