fix: Add support for multiple Kubeconfig files (#635)

This adds support for having multiple Kubeconfig file set as part of the
`KUBECONFIG` env var.

1 files changed, 14 insertions, 6 deletions

diff --git a/src/modules/kubernetes.rs b/src/modules/kubernetes.rs
index 16336d37c..c8d55be1e 100644
--- a/src/modules/kubernetes.rs
+++ b/src/modules/kubernetes.rs
@@ -38,15 +38,23 @@ fn get_kube_context(contents: &str) -> Option<(String, String)> {
     Some((current_ctx.to_string(), ns.to_string()))
 }
 
+fn parse_kubectl_file(filename: &path::PathBuf) -> Option<(String, String)> {
+    let contents = utils::read_file(filename).ok()?;
+    get_kube_context(&contents)
+}
+
 pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
-    let filename = match env::var("KUBECONFIG") {
-        Ok(path) => path::PathBuf::from(path),
-        Err(_) => dirs::home_dir()?.join(".kube").join("config"),
+    let kube_cfg = match env::var("KUBECONFIG") {
+        Ok(paths) => env::split_paths(&paths)
+            .filter_map(|filename| parse_kubectl_file(&filename))
+            .nth(0),
+        Err(_) => {
+            let filename = dirs::home_dir()?.join(".kube").join("config");
+            parse_kubectl_file(&filename)
+        }
     };
 
-    let contents = utils::read_file(filename).ok()?;
-
-    match get_kube_context(&contents) {
+    match kube_cfg {
         Some(kube_cfg) => {
             let (kube_ctx, kube_ns) = kube_cfg;