I’m trying to connect to a remote node but the request keeps getting rejected. The error is: “Connection attempt from disallowed node”. I understand this means the cookie is invalid, i.e. doesn’t match the running node.
When I SSH to the remote machine and run
cat vm.args I see:
## Name of the node -name email@example.com ## Cookie for distributed erlang -setcookie JGpXR9PPNYgMLhMii#3VktVMUAb7dRU3G3VdLsLYXk6t
When I start a session on the remote machine, this cookie shows up as:
$: iex sname will --cookie JGpXR9PPNYgMLhMii#3VktVMUAb7dRU3G3VdLsLYXk6t Interactive Elixir (1.5.1) - press Ctrl+C to exit (type h() ENTER for help) iex(will@iex_test)1> :erlang.get_cookie() :"JGpXR9PPNYgMLhMii#3VktVMUAb7dRU3G3VdLsLYXk6t"
No matter how I tried to represent the cookie I get this error:
I’m deploying the application inside a Docker container. My cookie is exported as an environment variable and I’m wondering if it’s getting set in a different format when grabbed by
System.get_env("COOKIE") in the Docker container than when it’s set from the shell.