Docker local registry tries to push images to docker.io

I have created a local docker registry. Steps I have followed. Creating certificate files.

mkdir -p /etc/docker/certs.d/123.456.78.9:5000

cp domain.crt /etc/docker/certs.d/123.456.78.9:5000/ca.crt

cp domain.crt /usr/local/share/ca-certificates/ca.crt

update-ca-certificates

Installed Docker registry, as given in official guide

docker run -d -p 5000:5000 --restart=always --name registry -v $PWD/certs:/certs -e REGISTRY_HTTP_ADDR=0.0.0.0:443 -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt -e REGISTRY_HTTP_TLS_KEY=/certs/domain.key registry:2

Pulling and pushing Docker images :

docker pull ubuntu:16.04

docker tag ubuntu:16.04 mydocker_registry/my_ubuntu

docker push mydocker_registry/my-ubuntu

My image push tries to access docker.io, so error is obvious.

The push refers to repository [docker.io/mydocker_registry/my_ubuntu]
03901b4a2ea8: Preparing  
denied: requested access to the resource is denied

My /etc/hosts file looks like this

123.456.78.9 mydocker_registry

Here I feel I have missed some small step. I can not figure that out. Thanks in advance.

Try adding your registry as insecure registries.

If you are using Linux, edit your daemon.json under /etc/docker

Add

{
  "insecure-registries" : ["registry-ip:registry-port"]
}

And run in terminal

$ sudo systemctl daemon-reload
$ sudo systemctl restart docker

docker push, Try adding your registry as insecure registries. you need to add you your registry url in the tag, if the local registry URL is not part of your Docker image tag, by default it will push to official docker registry. so All you add to add the full path of your docker registry. As docker push is executed, Docker will look at the image name specified to determine what registry to upload the image to. When we specify registry.example.com/madflojo/push-example, it knows that we are pushing a container named push-example to a user’s repository (madflojo), at the registry of registry.example.com.

you need to add you your registry url in the tag, if the local registry URL is not part of your Docker image tag, by default it will push to official docker registry.

So that is why you are seeing in the push log

The push refers to a repository [docker.io/mydocker_registry/my_ubuntu]

so All you add to add the full path of your docker registry.

docker tag ubuntu:16.04 123.456.78.9:5000/mydocker_registry/my_ubuntu
docker push 123.456.78.9:5000/mydocker_registry/my_ubuntu 

Here 123.456.78.9 refer to your local registry. if it is localhost then just 123.456.78.9 this with localhost

You can verify the registry access in browser if it is accessiable you will able to push.

https://myregistry.com/v2/_catalog
or 
http://localhost:5000/v2/_catalog

Docker local registry tries to push images to docker.io, I have created a local docker registry. Steps I have followed. Creating certificate files. mkdir -p /etc/docker/certs.d/123.456.78.9:5000. cp domain.crt  One of the things that makes Docker so useful is how easy it is to pull ready-to-use images from a central location, Docker’s Central Registry. It is just as easy to push your own image (or collection of tagged images as a repository) to the same public registry so that everyone can benefit from your newly Dockerized service.

Ok, after days of reading and trying, I have fixed my problem thanks to the helps given by /r/docker redditters :-)

Please note that this is working for your local domain only

Creating certificate files for your domain.

Here my domain is registry.myregistry.com.

openssl req -newkey rsa:4096 -nodes -sha256 -keyout registry.myregistry.com.key -x509 -days 365 -out registry.myregistry.com.crt

mkdir -p /etc/docker/certs.d/registry.myregistry.com:443

Copy certificates files to appropriate locations.

cp registry.myregistry.com.crt /etc/docker/certs.d/registry.myregistry.com:443/ca.crt

cp registry.myregistry.com /usr/local/share/ca-certificates/ca.crt

update-ca-certificates

Docker registry initialization

docker run -d -p 443:443 --restart=always --name registry -v $PWD/certs:/certs -e REGISTRY_HTTP_ADDR=0.0.0.0:443 -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/registry.myregistry.com.crt -e REGISTRY_HTTP_TLS_KEY=/certs/registry.myregistry.com.key registry:2

Pulling and Pushing docker images to registry

docker pull alpine:latest

docker tag alpine:latest registry.myregistry.com:443/myalpine

docker push registry.myregistry.com:443/myalpine

No errors, its pushing successfully.

To be done is, accepting pull requests from other users in the same network.

Docker local registry tries to push images to docker.io : docker, Docker Hub is the place where open Docker images are stored. So getting an image from Docker Hub works sort of automatically. the Docker container locally as a a tar archive, and then you can easily load that to an image when needed. $ docker run -d -p 5000:5000 --restart=always --name registry registry:2 Unable to find image 'registry:2' locally 2: Pulling from library/registry c87736221ed0: Pull complete 1cc8e0bb44df: Pull complete 54d33bcb37f5: Pull complete e8afc091c171: Pull complete b4541f6d3db6: Pull complete Digest: sha256

Pushing and Pulling to and from Docker Hub, Push and pull Docker images to a private container registry in Azure using the Docker CLI. Docker CLI - You must also have Docker installed locally. Docker provides docker tag nginx myregistry.azurecr.io/samples/nginx. To push a new image to Container Registry, you need to first tag it with the registry name, as described below. To get up and running with Container Registry, see the quickstart . For instructions on listing, tagging, and deleting images, see Managing Images .

Push & pull Docker image, [Tweet “”Use the Docker Push command to upload container images to Docker In local deployments, we would simply just issue a docker run , specifying a little when trying to push to an internally hosted Docker registry. The Docker Registry 2.0 implementation for storing and distributing Docker images

Using Docker Push to Publish Images to Docker Hub, When you use the public Docker.io repository — also called the Docker docker build lukaspustina/registry-demo registry > docker push lukaspustina/registry-​demo You can choose from local file system, Amazon S3, OpenStack Glance etc. If you're looking for hosting, try the Google Cloud Platform for  Copy an image from Docker Hub to your registry. You can pull an image from Docker Hub and push it to your registry. The following example pulls the ubuntu:16.04 image from Docker Hub and re-tags it as my-ubuntu, then pushes it to the local registry. Finally, the ubuntu:16.04 and my-ubuntu images are deleted locally and the my-ubuntu image is

Comments
  • docs.docker.com/engine/reference/commandline/push
  • Something weird. There is no daemon.json under /etc/docker, when I create one and try to restart docker after daemon-reload , docker failed to restart.
  • There could be something misconfigured in your systemd file. What do you get when you run systemctl status docker?
  • Active: active (running)
  • It seems to be running can you try pushing to your local registry? If that doesn't work, try restarting docker again.
  • Still no luck, I have taken a dump to port 5000, when a packet comes to my ip, it sents it to 172.17.0.2. if I use localhost, then packet is rejected.
  • The push refers to repository [123.456.78.9:5000/mydocker_registry/my-ubuntu] Get http://123.456.78.9:5000/v2/: dial tcp 123.456.78.9:5000: connect: connection refused
  • where your registry is running?
  • Added. you need to add your correct registry URL, if it is localhost then add localhost or somewhere then add the correct URL., also answer updaed.
  • And if you are adding ssl and it valid certificate you don't need to insecure flag which is risky
  • I have added certificate files. Still no luck