<\/span><\/h3>\n\n\n\nYou must create an SSL certificate to protect your private Docker registry. To create a self-signed certificate, execute the commands below:<\/p>\n\n\n\n
sudo mkdir \/certs\nsudo openssl req -newkey rsa:4096 -nodes -sha256 -keyout \/certs\/domain.key -x509 -days 365 -out \/certs\/domain.crt<\/code><\/pre>\n\n\n\n
Ensure that “domain” is changed to your own domain name or IP address.<\/p>\n\n\n\n
<\/span>Step 4: Create a Registry Configuration File<\/span><\/h3>\n\n\n\nThe Docker registry needs a configuration file, so we must do that next. Create a config.yml file using a text editor:<\/p>\n\n\n\n
mkdir \/etc\/docker\/registry\/\nsudo nano \/etc\/docker\/registry\/config.yml<\/code><\/pre>\n\n\n\nCopy and paste the configuration shown below into the file:<\/p>\n\n\n\n
version: 0.1\nlog:\n level: info\n formatter: json\n fields:\n service: registry\nstorage:\n cache:\n layerinfo: inmemory\n filesystem:\n rootdirectory: \/var\/lib\/registry\nhttp:\n addr: :5000\n tls:\n certificate: \/certs\/domain.crt\n key: \/certs\/domain.key<\/code><\/pre>\n\n\n\n<\/span>Step 5: Start the Docker Registry<\/span><\/h3>\n\n\n\nNow that we have the configuration file, we can launch the Docker registry. Run the command line:<\/p>\n\n\n\n
sudo docker run -d -p 5000:5000 --restart=always --name registry -v \/etc\/docker\/registry:\/etc\/docker\/registry -v \/certs:\/certs -v \/var\/lib\/registry:\/var\/lib\/registry registry:2<\/code><\/pre>\n\n\n\n
By using this command, a container called “registry” is started with port 5000 open, and the official Docker registry image is downloaded. If the server reboots, the container will also restart automatically.<\/p>\n\n\n\n
<\/span>Step 6: Configure Docker Daemon<\/span><\/h3>\n\n\n\nYou must set the Docker daemon to trust the SSL certificate in order for your Docker client to be able to communicate with the private registry. Create the file if it doesn’t already exist. Open the configuration file for the Docker daemon and add the following lines:<\/p>\n\n\n\n
sudo nano \/etc\/docker\/daemon.json<\/code><\/pre>\n\n\n\n{\n \"insecure-registries\": [],\n \"registry-mirrors\": [],\n \"insecure-registries\": [\"your-domain-or-ip:5000\"]\n}<\/code><\/pre>\n\n\n\nReplace “your-domain-or-ip” with the correct domain name or server’s IP address.<\/p>\n\n\n\n
<\/span>Step 7: Restart Docker Daemon<\/span><\/h3>\n\n\n\nRestarting the Docker service after making changes to the Docker daemon configuration will make the changes effective:<\/p>\n\n\n\n
sudo systemctl restart docker<\/code><\/pre>\n\n\n\n<\/span>Step 8: Push and Pull Images<\/span><\/h3>\n\n\n\n\nPull the Nginx image from Docker Hub:<\/li>\n<\/ul>\n\n\n\n<\/ol>\n\n\n\nsudo docker pull nginx<\/code><\/pre>\n\n\n\n
\nTag the pulled Nginx image with your private registry address:<\/li>\n<\/ul>\n\n\n\nsudo docker tag nginx:latest server-ip:5000\/image-name:tag<\/code><\/pre>\n\n\n\nReplace “image-name” with the desired name for your image, and “tag” with the version or tag you want to assign to the image.<\/p>\n\n\n\n
\nPush the tagged image to your private docker registry:<\/li>\n<\/ul>\n\n\n\nsudo docker push server-ip:5000\/image-name:tag<\/code><\/pre>\n\n\n\nMake sure to replace “image-name” and “tag” with the same values used in the previous step.<\/p>\n\n\n\n
These commands will allow Docker to push the Nginx image to your personal registry at server-ip:5000. The docker pull command can then be used on other machines with access to your registry to pull this image from your personal registry.<\/p>\n\n\n\n
<\/span>Final Thoughts<\/span><\/h3>\n\n\n\nIn this tutorial, you have learned how to set up a private Docker registry on Ubuntu 22.04. By following these steps, you can create a secure environment for storing and managing your Docker images within your organization. Having a private docker registry gives you more control over your container images and allows for easier collaboration and deployment.<\/p>\n","protected":false},"excerpt":{"rendered":"
There are situations where you might want to set up your own private Docker registry even though Docker Hub offers a public registry for storing and sharing Docker images. In this guide, we’ll show you how to set up a private Docker registry on Ubuntu 22.04 so you can manage<\/p>\n","protected":false},"author":8,"featured_media":3632,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3],"tags":[549,550,547,536,546,545,548],"class_list":["post-3626","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorial-how-to","tag-configure-docker-registry","tag-configure-private-docker","tag-docker-registry","tag-install-docker","tag-private-docker","tag-private-docker-registry","tag-registry-configuration-file"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.virtono.com\/community\/wp-content\/uploads\/2023\/06\/How-to-Configure-a-Private-Docker-Registry-in-Ubuntu-22-04.png?fit=600%2C330&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7ISfL-Wu","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":3954,"url":"https:\/\/www.virtono.com\/community\/tutorial-how-to\/how-to-install-and-configure-docker-swarm-on-ubuntu-22-04\/","url_meta":{"origin":3626,"position":0},"title":"How to Install and Configure Docker Swarm on Ubuntu 22.04","author":"George B.","date":"September 27, 2023","format":false,"excerpt":"This tutorial will show you how to install and configure Docker Swarm on Ubuntu 22.04 ensuring that you harness its full potential for your containerized applications. 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