shepherd fails to check local repository if DOCKER_CLI_EXPERIMENTAL isn't enabled about shepherd HOT 6 CLOSED

There is no check for DOCKER_CLI_EXPERIMENTAL. The above line sets the variable to enabled, executes the manifest command and checks the return code of the command via the if.

What error do you have exactly with the original code?

from shepherd.

I get an error message that docker manifest is only supported when experimental CLI features are enabled, despite having set the flag in the same way as shepherd does

administrator@bot-docker-03:~$ DOCKER_CLI_EXPERIMENTAL=enabled
administrator@bot-docker-03:~$ docker manifest inspect true 127.0.0.1:5000/wheatley
docker manifest inspect is only supported on a Docker cli with experimental cli features enabled
administrator@bot-docker-03:~$

I did however find that exporting the environment variable ended up making the command run correctly.

administrator@bot-docker-03:~$ export DOCKER_CLI_EXPERIMENTAL=enabled
administrator@bot-docker-03:~$ docker manifest inspect true 127.0.0.1:5000/wheatley
No such manifest: 127.0.0.1:5000/wheatley:latest

Though interestingly the docker manifest command is missing the containers on my local registry. Even those running on the local node.

administrator@bot-docker-03:~$ docker container ls
CONTAINER ID        IMAGE                             COMMAND             CREATED             STATUS              PORTS               NAMES
5f7a59a2b202        127.0.0.1:5000/triviabot:latest   "ant run"           3 hours ago         Up 3 hours                              botnet_triviabot.1.v6m0olawdie1bp100skszrcd8
administrator@bot-docker-03:~$ docker manifest inspect 127.0.0.1:5000/triviabot
no such manifest: 127.0.0.1:5000/triviabot:latest

Edit, ah, in my commands i was using the incorrect flag for insecure, adding that flag makes it work with my local registry.

administrator@bot-docker-03:~$ docker manifest inspect --insecure 127.0.0.1:5000/wheatley
{
        "schemaVersion": 2,
        "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
        "config": {
                "mediaType": "application/vnd.docker.container.image.v1+json",
                "size": 4124,
                "digest": "sha256:61b1e9fd23346e6e0bc0643fa21321c0947a8a6cf0b9a74dff305758632a2387"
        },
        "layers": [
...

from shepherd.

So according to this, everything is working for you as expected. The first command does not work because you need to either export the variable or put the variable assignment directly in front of the command (as shepherd does). (Also, I am not sure what the true in your commandline is for.)

from shepherd.

This is the error that I'm getting from the docker manifest command when running the container:

Get https://127.0.0.1:5000/v2/wheatley/manifests/latest: dial tcp 127.0.0.1:5000: connect: connection refused

from shepherd.

Ahh i see whats going on, since all my containers reference the local registry via localhost:5000, the container running shepherd can't update them due to trying to look them up via that reference, 127.0.0.1:5000/wheatley works on all the nodes, but not on a container running on the node.

from shepherd.

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

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