Docker tool used to provide a portable and consistent runtime environment for software applications, Bobcares with help of Docker hosting support has explained in detail about DigitalOcean Container Registry in this article.

DigitalOcean Container Registry

The DigitalOcean Container Registry is a private Docker image with additional tool support, that enables integration with your Docker environment and DigitalOcean Kubernetes clusters. The registries are private and co-located in the Datacenters so that are operated for secure, stable, and performant rollout of images to clusters.

Container Registry Quickstart

Create a Registry:

To create a registry in the control panel, visit the registry page and enter user details i.e the name of your registry. This must contain:

• Give a unique name across all DigitalOcean Container Registry.

• Should not cross 63 characters in length.

• Must have only lowercase letters, numbers, and/or hyphens.

• Begin with a character and end with a character or number.

Next Select your Datacenter region and choose your preferred Subscription plan

Finally, Click on Create Registry.

Further, you can also create a registry using the command below:

installdoctl and authenticate it with an API token.

Use theregistry createcommand to create your registry:

doctl registry create <my-registry-name> --region <region&gt 

Push to Your Registry:

Now the registry has been created, moving forward we need to push a Docker image to the registry:

• First Install doctl and authenticate it with an API token.

• Now use the registry login command to authenticate your registry: doctl registry login

• Use the docker tag function to tag your image with the destination path: docker tag <my-image> registry.digitalocean.com/<my-registry>/<my-image>

• By using the docker push command need to upload the image: docker push registry.digitalocean.com/<my-registry>/<my-image>

Use Images in Your Registry with Kubernetes:

This creates containers from the images stored in the registry from the control panel:

• Go to the registry page and click the Settings option.

• In the DigitalOcean Kubernetes integration section just click Edit to display the available Kubernetes clusters.

• choose the clusters and click Save.

The default service from namespaces is updated to include the secret in its image pull secret.

Using Images in Registry with App Platform:

• Visit the Apps page, click on Create App if you are developing from scratch, or click on an existing app to add your container image.

• Further continuing with the existing solution, click on the Create button and choose Create Resources From Source Code. You can also add a web service, worker, Job, or Functions.

• Select DigitalOcean Container Registry as your source code and choose the image from the drop-down Repository, then select the tag of the image that needs to deploy.

• Configure resources on your app, for this just click on the Resources >> Edit Plan to select a plan when the container is created from the image.

• Click the edit icon corresponding to the resource to configure details such as HTTPS routes, the run command, or the HTTP port.

• Now Add resources >> select the Detect from the source code option >> then click on Add. Further, if your app needs a database then select the Database from the given option >> Click Next.

• If you wish to use the resource and application level environment variables from the Environment page then click Edit to supply them. Next click the Encrypt checkbox to ensure the variable’s value is encrypted properly in the App Specification. Click Next.

• To change the default name or project name for your application or if you want to change the region time zone where you wanted your app to be hosted, for this click Edit on the Info page >> click Save >> Next.

Note that the option to select a region is not available for static sites. Now recheck and confirm your app’s resources, environment variables, and billing data from the Review page and later click Create Resources

Once your application deploys completely, You can view the app from the URL at the top of the app’s Overview page.

Delete Your Registry:

You can follow the below steps to delete the registry using the control panel:

• Navigate to the container Registry from the control panel

• Click on the Actions drop-down menu and select Destroy.

Use the registry delete command to remove registry from Command line.

Conclusion:

DigitalOcean Container Registry makes the process simple and easily manageable for securely storing data and Protect sensitive software by storing container images in private repositories, especially while using DigitalOcean Kubernetes.