See also: Credential
This document shows how to manage credentials in Juju.
Add a credential
See also: Credential definition, List of supported clouds > <cloud name> > CREDENTIAL
The procedure for how to add a cloud credential to Juju depends on whether the cloud is a machine (traditional, non-Kubernetes) cloud or rather a Kubernetes cloud.
Add a credential for a machine cloud
If your cloud is a local LXD cloud and if you are a Juju admin user:
Your cloud credential is set up and retrieved automatically for you, so you can skip this step. Run juju credentials to confirm. (If you are not a Juju admin user, run autoload-credentials.)
1. Choose a cloud authentication type and collect the information required for that type from your cloud account.
The authentication types and the information needed for each type depend on your chosen cloud. Run juju show-cloud or consult the cloud Reference doc to find out.
See more: List of supported clouds
2. Provide this information to Juju. You may do so in three ways – interactively, by specifying a YAML file, or automatically, by having Juju check your local YAML files or environment variables.
In general, we recommend the interactive method – the latter two are both error-prone, and the last one is not available for all clouds.
2a. To add a credential interactively, run the add-credential command followed by the name of your machine cloud. For example:
juju add-credential aws
This will start an interactive session where you’ll be asked to choose a cloud region (if applicable), specify a credential name (you can pick any name you want), and then provide the credential information (e.g., access key, etc.)
The command also offers various flags that you can use to provide all this information in one go (e.g., the path to a YAML file containing the credential definition) as an alternative to the interactive session.
See more:
juju add-credential
2b. To add a credential by specifying a YAML file, use your credential information to prepare a credentials.yaml file, then run the add-credential command with the -f flag followed by the path to this file.
See more:
juju add-credential -f
2c. To add a credential automatically, use your credential information to prepare a credentials.yaml file / environment variables, then run the autoload-credentials command:
juju autoload-credentials
Juju will scan your local credentials files / environment variables / rc files and, if it detects something suitable for the present cloud, it will display a prompt asking you to confirm the addition of the credential and to specify a name for it.
The command also allows you to restrict the search to a specific cloud, a specific controller, etc.
See more:
juju autoload-credentials
Add a credential for a Kubernetes cloud
For a Kubernetes cloud, credential definitions are added automatically when you add the cloud definition to Juju. Run juju credentials to verify.
See more: How to add a Kubernetes cloud
To add a credential, in your Terraform plan create a resource of the juju_credential type, specifying the credential’s name, cloud, authentication type, and the attributes associated with the authentication type.
resource "juju_credential" "this" {
name = "creddev"
cloud {
name = "localhost"
}
auth_type = "certificate"
attributes = {
client-cert = "/srv/cert.crt"
client-key = "/srv/cert.key"
trust-password = "S0m3P@$$w0rd"
}
}
See more:
juju_credential(resource)
To add a credential, you may use the Controller.add_credential() method on a connected Controller object. add_credential is an upsert method (where it inserts if the given credential is new, and updates if the given credential name already exists).
from juju.client import client as jujuclient
my_controller.add_credential("my-credential",
jujuclient.CloudCredential(auth_type="jsonfile", attrs={'file':'path_to_cred_file'})
See more:
add_credential(method)
View all the known credentials
To see a list of all the known credentials, run the credentials command:
juju credentials
This should output something similar to this:
Controller Credentials:
Cloud Credentials
lxd localhost*
Client Credentials:
Cloud Credentials
aws bob*, carol
google wayne
where the asterisk denotes the default credential for a given cloud.
By passing various flags, you can also choose to view just the credentials known to the client, or just those for a particular controller; you can select a different output format or an output file (and also choose to include secrets); etc.
See more:
juju credentials
The terraform juju client does not support this. Please use the juju client.
The python-libjuju client does not support this. Please use the juju client.
View details about a credential
You can view details about all your credentials at once or just about a specific credential.
All credentials. To view details about all your credentials at once, run the show-credential command with no argument:
juju show-credential
By passing various flags you can filter by controller, select an output format or an output file, etc.
See more:
juju show-credential
A specific credential. To view details about just one specific credential, run the show-credential command followed by the name of the cloud and the name of the credential. For example:
juju show-credential mycloud mycredential
By passing various flags you can specify an output format or an output file, display secret attributes, etc.
See more:
juju show-credential
The terraform juju client does not support this. Please use the juju client.
The python-libjuju client does not support this. Please use the juju client.
Set the default credential
Set. To set the default credential for a cloud on the current client, run the default-credential command followed by the name of the cloud and the name of the credential. For example:
juju default-credential aws carol
See more:
juju default-credential
Get. To view the currrently set default credential for a cloud, run the default-credential command followed by the name of the cloud. For example:
juju default-credential aws
This should display the default credential.
See more:
juju default-credential
The terraform juju client does not support this. Please use the juju client.
The python-libjuju client does not support this. Please use the juju client.
Add a credential to a model
You can only do this if you are a controller admin or a model owner.
To add a controller credential to a model, run the set-credential command followed by a flag for the intended model, the host cloud, and the name of the credential. For example:
juju set-credential -m trinity aws bob
If the credential is only known to the client, this will first upload it to the controller and then relate it to the model.
This command does not affect any existing relations between the credential and other models. If the credential is already related to a single model, this operation will just cause the credential to be related to two models.
See more:
juju set-credential
To add a controller credential to a model, in your Terraform plan, specify it as an attribute to the model definition. For example:
resource "juju_model" "this" {
name = "development"
cloud {
name = "aws"
region = "eu-west-1"
}
credential = juju_credential.<credential label>.name
}
The python-libjuju client does not support this. Please use the juju client.
Update a credential
To update a credential, run the update-credential command followed by the name of the cloud and the name of the credential. For example:
juju update-credential mycloud mycredential
This will start an interactive session where you will be asked to specify various parameters for the update.
By passing various flags, you can also perform this operation in-line. And by dropping the credential (and the cloud) argument and passing a flag with a credential YAMl file, you can also update all your credentials at once.
See more:
juju update-credential
To update a credential, in your Terraform plan, update its resource definition.
See more: Resource
juju_credential
To update a credential, you may use the Controller.add_credential() method on a connected Controller object. add_credential is an upsert method (where it inserts if the given credential is new, and updates if the given credential name already exists).
from juju.client import client as jujuclient
my_controller.add_credential("my-credential",
jujuclient.CloudCredential(auth_type="jsonfile", attrs={'file':'path_to_cred_file'})
See more:
add_credential(method)
Remove a credential
To remove a credential, run the remove-credential command followed by the name of the cloud and the name of the credential. For example:
juju remove-credential mycloud mycredential
This will start an interactive session where you will be asked to choose whether to apply this operation for the client or a specific controller or both. You can bypass this by using the client and controller flags in-line.
See more:
juju remove-credential
To remove a credential, remove its resource definition from your Terraform plan.
See more: Resource
juju_credential
The python-libjuju client does not support this. Please use the juju client.
Contributors: @cderici, @erik-lonroth , @pedroleaoc, @pmatulis, @timclicks, @tmihoc, @wallyworld