I am looking for documentation for docker login, I need to login to a registry to pull docker image and I need to do it remotely using docker remote APIs.
But unfortunately I am unable to find docker remote API docs, any help would be greatly appreciated.
API doc :
https://docs.docker.com/engine/reference/api/docker_remote_api_v1.19/
Thanks in advance.
Sarath Krishnan
you go as
docker login your.domain.to.the.registr.without.protocol.or.port
enter username
enter password
now you can pull using docker pull your.domain.to.the.registr.without.protocol.or.port/youimage
Ensure your registry runs behind a SSL proxy / termination, or you run into security issues. Consider reading this in this case https://docs.docker.com/registry/insecure/
Related
I am trying to pull and push images between Docker Desktop and Azure and Visual Studio 2019.
currently I can push from VS2019 by Publish option and I can push to Docker and Azure Container Registry.
How do I pull from Azure to Docker? I believe there is an issue with security accounts between the 2 systems. After all, my Docker account is not my Azure account. I came across this article
https://learn.microsoft.com/en-us/azure/container-registry/container-registry-auth-service-principal
which contains a script. Is this the right article to solve my problem? I made a copy of the script but I am struggling to run it. If I save it to assignpermissions.sh file and run wsl ./assignpermissions.sh it complains that az does not exist.
So
Is that the right article to help me (eventually) pull and push between Azure and Docker?
How do I run the script when calling az is causing an error?
Any other things I need to watch out for in the next step?
Log in to a registry
There are several ways to authenticate to your private container registry.
Azure CLI
The recommended method when working in a command line is with the Azure CLI command az acr login. For example, to log in to a registry named myregistry, log into the Azure CLI and then authenticate to your registry:
az login
az acr login --name myregistry
Azure PowerShell
The recommended method when working in PowerShell is with the Azure PowerShell cmdlet Connect-AzContainerRegistry. For example, to log in to a registry named myregistry, log into Azure and then authenticate to your registry:
Connect-AzAccount
Connect-AzContainerRegistry -Name myregistry
You can also log in with docker login. For example, you might have assigned a service principal to your registry for an automation scenario. When you run the following command, interactively provide the service principal appID (username) and password when prompted. For best practices to manage login credentials, see the docker login command reference:
docker login myregistry.azurecr.io
Both commands return Login Succeeded once completed.
Note: You might want to use Visual Studio Code with Docker extension for a faster and more convenient login.
Tip: Always specify the fully qualified registry name (all lowercase) when you use docker login and when you tag images for pushing to your registry. In the examples in this article, the fully qualified name is myregistry.azurecr.io.
Push the image to your registry
Now that you've tagged the image with the fully qualified path to your private registry, you can push it to the registry with docker push:
docker push myregistry.azurecr.io/samples/nginx
Pull the image from your registry
Use the docker pull command to pull the image from your registry:
docker pull myregistry.azurecr.io/samples/nginx
How do i set my own sonarcube credentials while building in docker container. By default t takes admin:admin credentials.
I am wondering is there any sonar cli which i can righ tin dockerfile.
Any suggestions
You can use api/users/createweb service to create a new user, once the web server is started, but not before.
I'm using the official Docker registry image, and have configured it as a pull though cache.
My clients can log in and push/pull local images, such as this:
docker login -u username -p secret docker.example.local:5000
docker pull docker.example.local:5000/myImage
I've configured my clients to use the Docker registry server as a proxy:
root#server:/# cat /etc/docker/daemon.json
{
"registry-mirrors": ["https://docker.example.local:5000"]
}
But when my clients tries to pull images not already present on the registry server, I get an error. Example pull command:
docker pull alpine
The registry server then responds with this message in its log file:
error authorizing context: basic authentication challenge for realm \"Registry Realm\": invalid authorization credential
I came across this SO post suggesting putting a Nginx proxy server in front, but this seems like a hack and I'd prefer some cleaner way of doing this if possible.
How have others set up their registry server in a pull through cache mode - did you find a better solution than setting up an Nginx proxy in front of the registry server?
You are using wrong name of registry-server-name.
Do not use https:// prefix
#>docker login -u username -p secret docker.example.local:5000
You should ensure that you either provide environment variable REGISTRY_HTTP_HOST=https://docker.example.local:5000 or specify it in /etc/docker/registry/config.yml file of registry image
http:
addr: localhost:5000
prefix: /my/nested/registry/
host: https://docker.example.local:5000
# see https://docs.docker.com/registry/configuration/
Reason is that address used in docker login should match host configuration of docker registry.
It's been a bit since I dug through that code, but I believe docker will attempt to login to your pull through cache using your Hub credentials. It only uses that registries individual credentials when you pull from it directly. So you need to run docker login without a hostname to configure the Hub login. This is only between the docker engine and the mirror.
From the pull through cache to Hub, you configure the user/password in the pull through cache and anyone that can reach the cache will use those credentials when pulling from Hub. This means you need to ensure the cache is configured with a minimal access user or is only accessible by devices on the network that you trust.
I've setup a docker up login on the docker hub website.
I've run sudo docker login and put my credentials in.
When I run
sudo docker pull sequenceiq/hadoop-docker:2.7.1
It downloads 5 hashes and then I get
unauthorized: authentication required
and then the pull finishes.
This person can reproduce this issue.
Note that this is different to two similar questions because they're about docker push and not docker pull.
There is a little bit of chatter here about docker pull authorization issues related to config.json format and the UTC date. I don't see how they're relevant to this situation.
My question is: Why do I get unauthorized: authentication required from a docker pull from docker hub?
Interestingly enough - even without a proxy on your mac - Docker for Mac runs through a proxy!
To switch it off (by default it is on) go to your Docker menu and choose Preferences then Proxies and change the setting from Use System Proxy to No Proxy.
My aim is to show the portability of docker, and thus being able to export docker container images from the registry/repository to an external docker user.
I can perfectly pull the image from the machine with ICE CLI installed, and authentication (ice login passed), but if I use an other machine, the command docker pull registry-ice.ng.bluemix.net/ibmnode or docker pull registry-ice.ng.bluemix.net/kapi/nginx-test, I get the same result : authentication required.
My question is : is it possible to allow some docker images to be available for everyone, without authentication ?
I can obviously pull the image from the machine with ice logged in, and then re-export/push it, but it is not the easiest way.
Has anyone an idea, on how to do this ?
Thanks for reading
As you discovered, IBM Containers currently requires a Bluemix authentication token when connecting to the Bluemix container registry. There is not a public registry where anyone can pull images.
But your idea is interesting and we could look into providing some public images on a public registry. For now, you will need to sign in.