How to get Rancher scripts code when add agent to nodes hosts?

Question

Normally, get that code on master host's dashboard:

$ sudo docker run --rm --privileged -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/rancher:/var/lib/rancher rancher/agent:v1.2.2 http://192.168.0.100:8080/v1/scripts/5D8B3FD489C00C7F361A:2483142400000:WvMClyNFLXQnT9pLuii3D0sYA

If want to deploy multiple nodes automatic to other hosts, it's necessary to get this code from master:

5D8B3FD489C00C7F361A:2483142400000:WvMClyNFLXQnT9pLuii3D0sYA

Then every node just add agent with this code is good. Is it right?

But, how to get it by cli from master?

Answer 1

Rancher has API, which enables you to interact with it remotely. What you require is called registrationTokens . Now, how to access them.

First, set up API tokens in your Rancher. Go to API -> Keys -> Add Account API Key and create the keys. If you can't find the buttons, your URL would be 192.168.0.100:8080/env/1a5/api/keys .

Now you know the keys and from remote host you can do something like this:

curl -u "${RANCHER_ACCESS_KEY}:${RANCHER_SECRET_KEY}" \
-X GET \
'http://192.168.0.100:8080/v2-beta/projects/1a5/registrationtokens'

Your result will be a JSON with required data:

{
...
    "data": [
    {
        "id": "1c3",
        "type": "registrationToken",
        "links": {
            ...
        },
        "actions": {
            ...
        },
        ...
        "command": "sudo docker run --rm --privileged -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/rancher:/var/lib/rancher rancher/agent:v1.2.2 http://192.168.0.100:8080/v1/scripts/AAAAAAAAAAAAAAAAAAAA:0000000000000:ZZZZZZZZZZZZZZZZZZZZZZZZZZ",
        ...
    }],
...
}