multiple kubectl files passed through kubeconfig

[cruzanstx]

so in k9s and kubectl you can pass multiple kubeconfig files via the KUBECONFIG environment variable then swap between them using the contexts command.

example environment variable:
"KUBECONFIG=/root/.kube/config.production:/root/.kube/rnd.kubeconfig.yaml:/root/.kube/staging.kubeconfig.yaml:/root/.kube/config.local"

for some reason when trying to do the same with the "env" key in the cline_mcp_settings.json its treated a single file and fails and I get the following error:

node:fs:596 handleErrorFromBinding(ctx); ^ Error: ENOENT: no such file or directory, open

[Flux159]

Do you have the entire trace?

I think it might be due to https://github.com/Flux159/mcp-server-kubernetes/blob/main/src/utils/kubernetes-manager.ts#L79 - we use the kubernetes node client to load the kubeconfig file from the env var. I'm assuming that this is failing because your KUBECONFIG is not a file, but need the full trace to confirm. The KUBECONFIG env var is then passed through to the kubectl cli which should function however it does normally with multiple config paths, but if the node client doesn't support multiple paths, then there would be an error.

I don't think we use the node client for any commands anymore though, so it might be that we don't need this.

[85danf]

Here's a trace from my error - seems like I'm experiencing the same issue.
It's trying to open a file where a list of files is given like /Users/***/.kube/config_dev:/Users/***/.kube/config_stg which is a valid kube config value.

I also tried specifying the directory with export KUBECONFIG_PATH='/Users/***/.kube' and that fails as well since its expecting a file.

Error: ENOENT: no such file or directory, open '/Users/***/.kube/config_dev:/Users/***/.kube/config_stg'
    at Object.openSync (node:fs:581:18)
    at Object.readFileSync (node:fs:457:35)
    at KubeConfig.loadFromFile (file:///Users/***/.nvm/versions/node/v20.10.0/lib/node_modules/mcp-server-kubernetes/node_modules/@kubernetes/client-node/dist/config.js:89:32)
    at new KubernetesManager (file:///Users/***/.nvm/versions/node/v20.10.0/lib/node_modules/mcp-server-kubernetes/dist/utils/kubernetes-manager.js:66:21)
    at file:///Users/***/.nvm/versions/node/v20.10.0/lib/node_modules/mcp-server-kubernetes/dist/index.js:82:20
    at ModuleJob.run (node:internal/modules/esm/module_job:218:25)
    at async ModuleLoader.import (node:internal/modules/esm/loader:329:24)
    at async loadESM (node:internal/process/esm_loader:34:7)
    at async handleMainPromise (node:internal/modules/run_main:113:12) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'open',
  path: '/Users/***/.kube/config_dev:/Users/***/.kube/config_stg'
}