From 856f6d7f0d3945bc365c7d24259e9b015c798130 Mon Sep 17 00:00:00 2001
From: so0k <vincent.drl@gmail.com>
Date: Tue, 12 Dec 2017 22:10:00 +0800
Subject: [PATCH] Initial commit

---
 README.md | 21 +++++++++++++++++++++
 helmns    | 24 ++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 README.md
 create mode 100755 helmns

diff --git a/README.md b/README.md
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+++ b/README.md
@@ -0,0 +1,21 @@
+# Helmns
+
+helmns is a [Helm](http://helm.sh) cli wrapper forcing `--tiller-namespace` to match kubectl context.
+
+This is meant to simplify management for Kubernetes clusters with RBAC enabled and where tiller is heavily locked down per namespace.
+
+-----
+
+## Installation
+
+Since `helmns` is written in Bash, it can run in shells that support POSIX standards.
+
+- Download the `helmns` script
+- Either:
+  - save to somewhere in your `PATH`,
+  - or save to a directory, then create symlinks to `helmns` from somewhere in your `PATH`, like `/usr/local/bin`
+- Make `helmns` executable (`chmod +x ...`)
+
+-----
+
+Heavily based on [ahmetb/kubens](https://github.com/ahmetb/kubectx)
diff --git a/helmns b/helmns
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+++ b/helmns
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+#!/bin/bash
+#
+# helmns(1) is a utility to force tiller-namespace to current namespace
+
+[[ -n $DEBUG ]] && set -x
+
+set -eou pipefail
+IFS=$'\n\t'
+
+current_context() {
+  kubectl config view -o=jsonpath='{.current-context}'
+}
+
+current_namespace() {
+  local cur_ctx=$(current_context)
+  ns="$(kubectl config view -o=jsonpath="{.contexts[?(@.name==\"${cur_ctx}\")].context.namespace}")"
+  if [[ -z "${ns}" ]]; then
+    echo "default"
+  else
+    echo "${ns}"
+  fi
+}
+
+exec helm --tiller-namespace "$(current_namespace)" "$@"