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odo build-images

odo can build container images based on Dockerfiles, and push these images to their registries.

When running the odo build-images command, odo searches for all components in the devfile.yaml with the image type, for example:

components:
- image:
    imageName: quay.io/myusername/myimage
    dockerfile:
      uri: ./Dockerfile (1)
      buildContext: ${PROJECTS_ROOT} (2)
  name: component-built-from-dockerfile
1 The uri field indicates the relative path of the Dockerfile to use, relative to the directory containing the devfile.yaml. The devfile specification indicates that uri could also be an HTTP URL, but this case is not supported by odo yet.
2 The buildContext indicates the directory used as build context. The default value is ${PROJECTS_ROOT}.

For each image component, odo executes either podman or docker (the first one found, in this order), to build the image with the specified Dockerfile, build context, and arguments.

If the --push flag is passed to the command, the images are pushed to their registries after they are built.

odo catalog

odo uses different catalogs to deploy components and services.

Components

odo uses the portable devfile format to describe the components. It can connect to various devfile registries to download devfiles for different languages and frameworks. See odo registry for more information.

Listing components

To list all the devfiles available on the different registries, run the command:

$ odo catalog list components
Example output
 NAME             DESCRIPTION                          REGISTRY
 go               Stack with the latest Go version     DefaultDevfileRegistry
 java-maven       Upstream Maven and OpenJDK 11        DefaultDevfileRegistry
 nodejs           Stack with Node.js 14                DefaultDevfileRegistry
 php-laravel      Stack with Laravel 8                 DefaultDevfileRegistry
 python           Python Stack with Python 3.7         DefaultDevfileRegistry
 [...]

Getting information about a component

To get more information about a specific component, run the command:

$ odo catalog describe component

For example, run the command:

$ odo catalog describe component nodejs
Example output
* Registry: DefaultDevfileRegistry (1)

Starter Projects: (2)
---
name: nodejs-starter
attributes: {}
description: ""
subdir: ""
projectsource:
  sourcetype: ""
  git:
    gitlikeprojectsource:
      commonprojectsource: {}
      checkoutfrom: null
      remotes:
        origin: https://github.com/odo-devfiles/nodejs-ex.git
  zip: null
  custom: null
1 Registry is the registry from which the devfile is retrieved.
2 Starter projects are sample projects in the same language and framework of the devfile, that can help you start a new project.

See odo create for more information on creating a project from a starter project.

Services

odo can deploy services with the help of Operators.

Only Operators deployed with the help of the Operator Lifecycle Manager are supported by odo.

Listing services

To list the available Operators and their associated services, run the command:

$ odo catalog list services
Example output
 Services available through Operators
 NAME                                 CRDs
 postgresql-operator.v0.1.1           Backup, Database
 redis-operator.v0.8.0                RedisCluster, Redis

In this example, two Operators are installed in the cluster. The postgresql-operator.v0.1.1 Operator deploys services related to PostgreSQL: Backup and Database. The redis-operator.v0.8.0 Operator deploys services related to Redis: RedisCluster and Redis.

To get a list of all the available Operators, odo fetches the ClusterServiceVersion (CSV) resources of the current namespace that are in a Succeeded phase. For Operators that support cluster-wide access, when a new namespace is created, these resources are automatically added to it. However, it may take some time before they are in the Succeeded phase, and odo may return an empty list until the resources are ready.

Searching services

To search for a specific service by a keyword, run the command:

$ odo catalog search service

For example, to retrieve the PostgreSQL services, run the command:

$ odo catalog search service postgres
Example output
 Services available through Operators
 NAME                           CRDs
 postgresql-operator.v0.1.1     Backup, Database

You will see a list of Operators that contain the searched keyword in their name.

Getting information about a service

To get more information about a specific service, run the command:

$ odo catalog describe service

For example:

$ odo catalog describe service postgresql-operator.v0.1.1/Database
Example output
KIND:    Database
VERSION: v1alpha1

DESCRIPTION:
     Database is the Schema for the the Database Database API

FIELDS:
   awsAccessKeyId (string)
     AWS S3 accessKey/token ID

     Key ID of AWS S3 storage. Default Value: nil Required to create the Secret
     with the data to allow send the backup files to AWS S3 storage.
[...]

A service is represented in the cluster by a CustomResourceDefinition (CRD) resource. The previous command displays the details about the CRD such as kind, version, and the list of fields available to define an instance of this custom resource.

The list of fields is extracted from the OpenAPI schema included in the CRD. This information is optional in a CRD, and if it is not present, it is extracted from the ClusterServiceVersion (CSV) resource representing the service instead.

It is also possible to request the description of an Operator-backed service, without providing CRD type information. To describe the Redis Operator on a cluster, without CRD, run the following command:

$ odo catalog describe service redis-operator.v0.8.0
Example output
NAME:	redis-operator.v0.8.0
DESCRIPTION:

	A Golang based redis operator that will make/oversee Redis
	standalone/cluster mode setup on top of the Kubernetes. It can create a
	redis cluster setup with best practices on Cloud as well as the Bare metal
	environment. Also, it provides an in-built monitoring capability using

... (cut short for beverity)

	Logging Operator is licensed under [Apache License, Version
	2.0](https://github.com/OT-CONTAINER-KIT/redis-operator/blob/master/LICENSE)


CRDs:
	NAME           DESCRIPTION
	RedisCluster   Redis Cluster
	Redis          Redis

odo create

odo uses a devfile to store the configuration of a component and to describe the component’s resources such as storage and services. The odo create command generates this file.

Creating a component

To create a devfile for an existing project, run the odo create command with the name and type of your component (for example, nodejs or go):

odo create nodejs mynodejs

In the example, nodejs is the type of the component and mynodejs is the name of the component that odo creates for you.

For a list of all the supported component types, run the command odo catalog list components.

If your source code exists outside the current directory, the --context flag can be used to specify the path. For example, if the source for the nodejs component is in a folder called node-backend relative to the current working directory, run the command:

odo create nodejs mynodejs --context ./node-backend

The --context flag supports relative and absolute paths.

To specify the project or app where your component will be deployed, use the --project and --app flags. For example, to create a component that is part of the myapp app inside the backend project, run the command:

odo create nodejs --app myapp --project backend

If these flags are not specified, they will default to the active app and project.

Starter projects

Use the starter projects if you do not have existing source code but want to get up and running quickly to experiment with devfiles and components. To use a starter project, add the --starter flag to the odo create command.

To get a list of available starter projects for a component type, run the odo catalog describe component command. For example, to get all available starter projects for the nodejs component type, run the command:

odo catalog describe component nodejs

Then specify the desired project using the --starter flag on the odo create command:

odo create nodejs --starter nodejs-starter

This will download the example template corresponding to the chosen component type, in this instance, nodejs. The template is downloaded to your current directory, or to the location specified by the --context flag. If a starter project has its own devfile, then this devfile will be preserved.

Using an existing devfile

If you want to create a new component from an existing devfile, you can do so by specifying the path to the devfile using the --devfile flag. For example, to create a component called mynodejs, based on a devfile from GitHub, use the following command:

odo create mynodejs --devfile https://raw.githubusercontent.com/odo-devfiles/registry/master/devfiles/nodejs/devfile.yaml

Interactive creation

You can also run the odo create command interactively, to guide you through the steps needed to create a component:

$ odo create

? Which devfile component type do you wish to create go
? What do you wish to name the new devfile component go-api
? What project do you want the devfile component to be created in default
Devfile Object Validation
 ✓  Checking devfile existence [164258ns]
 ✓  Creating a devfile component from registry: DefaultDevfileRegistry [246051ns]
Validation
 ✓  Validating if devfile name is correct [92255ns]
? Do you want to download a starter project Yes

Starter Project
 ✓  Downloading starter project go-starter from https://github.com/devfile-samples/devfile-stack-go.git [429ms]

Please use odo push command to create the component with source deployed

You are prompted to choose the component type, name, and the project for the component. You can also choose whether or not to download a starter project. Once finished, a new devfile.yaml file is created in the working directory.

To deploy these resources to your cluster, run the command odo push.

odo delete

The odo delete command is useful for deleting resources that are managed by odo.

Deleting a component

To delete a devfile component, run the odo delete command:

$ odo delete

If the component has been pushed to the cluster, the component is deleted from the cluster, along with its dependent storage, URL, secrets, and other resources. If the component has not been pushed, the command exits with an error stating that it could not find the resources on the cluster.

Use the -f or --force flag to avoid the confirmation questions.

Undeploying devfile Kubernetes components

To undeploy the devfile Kubernetes components, that have been deployed with odo deploy, execute the odo delete command with the --deploy flag:

$ odo delete --deploy

Use the -f or --force flag to avoid the confirmation questions.

Delete all

To delete all artifacts including the following items, run the odo delete command with the --all flag :

  • devfile component

  • Devfile Kubernetes component that was deployed using the odo deploy command

  • Devfile

  • Local configuration

$ odo delete --all

Available flags

-f, --force

Use this flag to avoid the confirmation questions.

-w, --wait

Use this flag to wait fo