Get Started with the CLI to Deploy Apps

Use the CLI to interact with Armory CD-as-a-Service. You can integrate Armory CD-as-a-Service into your existing CI/CD tooling. Start by familiarizing yourself with the CLI and its workflow.

Before you begin

  • Make sure that your organization has completed the onboarding steps in Get Started with Armory CD-as-a-Service. That guide describes how to prepare your deployment target so that you can use the CLI to deploy apps to it.
  • You have login credentials for Armory CD-as-a-Service.

Deployment steps

  1. Install the CLI
  2. Create a deployment config file
  3. Deploy your app
  4. Monitor your deployment

Install the CLI

You can run the CLI in Docker, or you can install the CLI on your Mac or Linux workstation.

Docker image

Armory provides the CD-as-a-Service CLI as a Docker image.

docker pull armory/armory-cli

Local installation

You can install the Armory Version Manager (AVM) and CLI using a one-line command or you can download the AVM manually.

The AVM enables you to quickly and easily download, install, and update the CLI. The AVM includes additional features such as the ability to list installed CLI versions and to declare which version of the CLI to use.

You can install the CLI with a one-line script that does the following:

  1. Fetches the correct Armory Version Manager binary (avm) for your Linux or Mac OSX operating system
  2. Installs the AVM binary
  3. Uses the AVM to install the CLI binary (armory)
  4. Adds the AVM and the CLI to the path in your bash or zsh profile

Execute the following script on the machine that has access to your Kubernetes cluster:

curl -sL go.armory.io/get-cli | bash

After installation completes, you should start a new terminal session or source your profile.

  1. Download the AVM for your operating system and CPU architecture. You can manually download it from the repo or use the following command:

    curl -LO https://github.com/armory/avm/releases/latest/download/avm-<os>-<architecture>
    

    For example, the following command downloads the latest version for macOS (Darwin):

    curl -LO https://github.com/armory/avm/releases/latest/download/avm-darwin-amd64
    

    You can see the full list of available releases in the repo.

  2. Give AVM execute permissions. For example (on macOS):

    chmod +x avm-darwin-amd64
    
  3. Confirm that /usr/local/bin is on your PATH:

    echo $PATH
    

    The command returns your PATH, which should now include /usr/local/bin/.

  4. Rename the AVM binary to avm and move it to /usr/local/bin, which is on your PATH. For example (on macOS):

    mv avm-darwin-amd64 /usr/local/bin/avm
    
  5. Run the following command to install the CLI:

    avm install
    

    The command installs the CLI and returns a directory that you need to add to your path, such as /Users/milton/.avm/bin.

    If you get an developer cannot be identified error when trying to run AVM, you must allow AVM to run.

    Show me how to allow AVM to run.

    On macOS, go to System Preferences > Security & Privacy > General and click Allow Anyway.

    For more information, see the macOS documentation about how to open a Mac app from an unidentified developer.


  6. Add the directory that AVM returned when you ran avm install to your path.

    Show me how to add the directory.

    You can either add the path directly to /etc/paths or add it to your shell profile. The following steps describe how to add it to your shell profile:

    1. Edit the resource file for your shell, such as .bashrc, .bash_profile, or .zshrc. For example:

      vi ~/.bashrc
      
    2. In the file, find the line for the PATH that your resource file exports. They follow the format export PATH=$HOME/bin:/usr/local/bin:$PATH.

    3. Insert the path provided by AVM (such as /Users/brianle/.avm/bin) before the ending $PATH. The line should look similar to this:

      export PATH=$HOME/bin:/usr/local/bin::/Users/milton/.avm/bin:$PATH
      
    4. Save the file.

    5. Reload your terminal, open a new session, or source your terminal profile file (for example, source .bash_profile).


  7. Run the following command to verify that the CLI is installed:

    armory
    

    The command returns basic information about the CLI, including available commands.

For the AVM or the CLI, you can use the -h flag for more information about specific commands.

See the Armory Version Manager Cheatsheet and CLI Cheatsheet pages for more information on AVM and CLI commands.

Create a deployment config file

  1. Generate your deployment config template and output it to a file.

    For example, this command generates a deployment template for canary deployments and saves it to a file named canary.yaml:

    armory template kubernetes canary > canary.yaml
    
  2. Customize your deployment file by setting the following minimum set of parameters:

    • application: The name of your app.

    • targets.<deploymentName>: A descriptive name for your deployment. Armory recommends using the environment name.

    • targets.<deploymentName>.account: This is the name of your RNA. If you installed the RNA manually, it is the value that you assigned to the agentIdentifier parameter.

    • targets.<deploymentName>.strategy: the name of the deployment strategy you want to use. You define the strategy in strategies.<strategy-name>.

    • manifests: a map of manifest locations. This can be a directory of yaml (yml) files or a specific manifest. Each entry must use the following convention: - path: /path/to/directory-or-file

    • strategies.<strategy-name>: the list of your deployment strategies. Use one of these for targets.<target-cluster>.strategy.

      If you are using a canary strategy, the strategy section consists of a map of steps for your canary strategy in the following format:

      strategies:
        my-demo-strategy: # Name that you use for `targets.<deploymentName>.strategy
        - canary # The type of deployment strategy to use.
            steps:
              - setWeight:
                  weight: <integer> # What percentage of the cluster to roll out the manifest to before pausing.
              - pause:
                  duration: <integer> # How long to pause before deploying the manifest to the next threshold.
                  unit: <seconds|minutes|hours> # The unit of time for the duration.
              - setWeight:
                  weight: <integer> # The next percentage threshold the manifest should get deployed to before pausing.
              - pause:
                  untilApproved: true # Wait until a user provides a manual approval before deploying the manifest
      

      Each step can have the same or different pause behaviors. Additionally, you can configure as many steps as you want for the deployment strategy, but you do not need to create a step with a weight set to 100. Once CD-as-a-Service completes the last step you configure, the manifest is deployed to the whole cluster automatically. See the Canary fields section of the deployment file reference for more information.

  3. (Optional) Configure a deployment timeout.

    A deployment times out if the pods for your application fail to be in ready state in 30 minutes. You can optionally configure a deployment timeout by adding a deploymentConfig top-level section:

    deploymentConfig:
      timeout:
        unit: <seconds|minutes|hours>
        duration: <integer>
    

    Note that the minimum timeout you can specify is 60 seconds (1 minute). See the Deployment config section of the deployment file reference for more information.

  4. (Optional) Ensure there are no YAML issues with your deployment file.

    Since a hidden tab in your YAML can cause your deployment to fail, it’s a good idea to validate the structure and syntax in your deployment file. There are several online linters, IDE-based linters, and command line linters such as yamllint that you can use to validate your deployment file.

You can view detailed configuration options on the Deployment Config File Reference for CD-as-a-Service page.

Deploy your app

Armory CD-as-a-Service manages your Kubernetes deployments using ReplicaSet resources. During the initial deployment of your application using Armory CD-as-a-Service, the underlying Kubernetes deployment object is deleted in a way that it leaves behind the ReplicaSet and pods so that there is no actual downtime for your application. These are later deleted when the deployment succeeds.

Before you can deploy, make sure that you have the Client ID and Client Secret for your deployment target available. These are used to authenticate Armory’s hosted deployment services with the target cluster. The credentials were created and tied to your deployment target as part of the Get Started with Armory CD-as-a-Service guide.

Since you are using the CLI, you do not need to have service account credentials for authenticating your CLI to the deployment services. Instead, you log in manually with your user account.

If this is the first deployment of your app, Armory CD-as-a-Service automatically deploys the app to 100% of the cluster since there is no previous version. Subsequent deployments of this app follow the steps defined in your deployment file.

  1. Log in to Armory’s hosted deployment services from the CLI.

    armory login
    

    The CLI returns a Device Code and opens your default browser. To complete the log in process, confirm the code in your browser.

    After you successfully authenticate, the CLI returns a list of tenants if you have access to more than one. Select the tenant you want to access. Note that most users only have access to one tenant. If you have access to several tenants, you can can log in directly to your desired tenant with armory login -e '<tenant>'.

  2. Start the deployment.

    armory deploy start  -f canary.yaml
    

    The command starts your deployment and progresses until the first weight and pause you set. It also returns a Deployment ID that you can use to check the status of your deployment and a link to the Deployments UI page for your deployment.

    Note that you can deploy an app without manually logging into CD-as-a-Service. See the Deploy an App Using Credentials page for details.

    If you want to monitor your deployment in your terminal, use the --watch flag to output deployment status.

    armory deploy start  -f canary.yaml --watch
    

    You can also monitor the progress of any deployment in the Deployments UI, which gives you a visual representation of a deployment’s health and progress. If your deployment strategy includes a manual approval step, use the Deployments UI to approve the step and continue your deployment.

    If you forget to add the --watch flag, you can run the armory deploy status --deploymentID <deployment-id> command. Use the Deployment ID returned by the armory deploy start command. For example:

    armory deploy start -f deploy-simple-app.yml
    Deployment ID: 9bfb67e9-41c1-41e8-b01f-e7ad6ab9d90e
    See the deployment status UI: https://console.cloud.armory.io/deployments/pipeline/9bfb67e9-41c1-41e8-b01f-e7ad6ab9d90e?environmentId=82431eae-1244-4855-81bd-9a4bc165f90b
    

    then run:

    armory deploy status --deploymentId 9bfb67e9-41c1-41e8-b01f-e7ad6ab9d90e
    

    Output is similar to:

    application: sample-application, started: 2023-01-06T20:07:36Z
    status: RUNNING
    See the deployment status UI: https://console.cloud.armory.io/deployments/pipeline/9bfb67e9-41c1-41e8-b01f-e7ad6ab9d90e? environmentId=82431eae-1244-4855-81bd-9a4bc165f90b
    

    This armory deploy status command returns a point-in-time status and exits. It does not watch the deployment.

Initial deployment failure

If the initial deployment of your app using Armory CD-as-a-Service fails or is manually rolled back, the ReplicaSet is orphaned rather than deleted. In this situation, you should manually delete the orphaned ReplicaSet only after the initial deployment runs successfully.

To delete the orphaned ReplicaSet:

  1. Get a list of ReplicaSet objects

    kubectl get rs -n <namespace>
    
  2. Identify the ReplicaSet with the old version of your application. This is typically the ReplicaSet with the greater age.

  3. Delete the orphaned ReplicaSet:

    kubectl delete rs <ReplicaSet_name> -n <namespace>
    

Upgrade the CLI

Run the following command to upgrade your existing CLI:

avm install

What’s next


Last modified January 12, 2023: (f0e63a4)