feat: add k8s namespace indicator (#1887)

* Add k8s namespace to prompt

docs/themes-list/powerline-base.rst

@@ -76,6 +76,7 @@ The contents of the prompt can be "reordered", all the "segments" (every piece o
 * ``in_toolbox`` - Show identifier if running inside a `toolbox <https://github.com/containers/toolbox>`_
 * ``in_vim`` - Show identifier if running in ``:terminal`` from vim
 * ``k8s_context`` - Show current kubernetes context
+* ``k8s_namespace`` - Show current kubernetes namespace
 * ``last_status`` - Exit status of last run command
 * ``python_venv`` - Python virtual environment information (\ ``virtualenv``\ , ``venv``
   and ``conda`` supported)

themes/base.theme.bash

@@ -437,6 +437,10 @@ function k8s_context_prompt {
 	echo -e "$(kubectl config current-context 2> /dev/null)"
 }
 
+function k8s_namespace_prompt {
+	echo -e "$(kubectl config view --minify --output 'jsonpath={..namespace}' 2> /dev/null)"
+}
+
 function virtualenv_prompt {
 	if [[ -n "$VIRTUAL_ENV" ]]; then
 		virtualenv=$(basename "$VIRTUAL_ENV")

themes/powerline-multiline/powerline-multiline.theme.bash

@@ -55,6 +55,9 @@ TERRAFORM_CHAR=${POWERLINE_TERRAFORM_CHAR:="❲t❳ "}
 KUBERNETES_CONTEXT_THEME_CHAR=${POWERLINE_KUBERNETES_CONTEXT_CHAR:="⎈ "}
 KUBERNETES_CONTEXT_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_CONTEXT_COLOR:=26}
 
+KUBERNETES_NAMESPACE_THEME_CHAR=${POWERLINE_KUBERNETES_NAMESPACE_CHAR:="⎈ "}
+KUBERNETES_NAMESPACE_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_NAMESPACE_COLOR:=64}
+
 AWS_PROFILE_CHAR=${POWERLINE_AWS_PROFILE_CHAR:="❲aws❳ "}
 AWS_PROFILE_PROMPT_COLOR=${POWERLINE_AWS_PROFILE_COLOR:=208}
 

themes/powerline-naked/powerline-naked.theme.bash

@@ -50,6 +50,9 @@ TERRAFORM_CHAR=${POWERLINE_TERRAFORM_CHAR:="❲t❳ "}
 KUBERNETES_CONTEXT_THEME_CHAR=${POWERLINE_KUBERNETES_CONTEXT_CHAR:="⎈ "}
 KUBERNETES_CONTEXT_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_CONTEXT_COLOR:=26}
 
+KUBERNETES_NAMESPACE_THEME_CHAR=${POWERLINE_KUBERNETES_NAMESPACE_CHAR:="⎈ "}
+KUBERNETES_NAMESPACE_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_NAMESPACE_COLOR:=64}
+
 AWS_PROFILE_CHAR=${POWERLINE_AWS_PROFILE_CHAR:="❲aws❳ "}
 AWS_PROFILE_PROMPT_COLOR=${POWERLINE_AWS_PROFILE_COLOR:=208}
 

themes/powerline-plain/powerline-plain.theme.bash

@@ -47,6 +47,9 @@ TERRAFORM_CHAR=${POWERLINE_TERRAFORM_CHAR:="❲t❳ "}
 KUBERNETES_CONTEXT_THEME_CHAR=${POWERLINE_KUBERNETES_CONTEXT_CHAR:="⎈ "}
 KUBERNETES_CONTEXT_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_CONTEXT_COLOR:=26}
 
+KUBERNETES_NAMESPACE_THEME_CHAR=${POWERLINE_KUBERNETES_NAMESPACE_CHAR:="⎈ "}
+KUBERNETES_NAMESPACE_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_NAMESPACE_COLOR:=60}
+
 AWS_PROFILE_CHAR=${POWERLINE_AWS_PROFILE_CHAR:="❲aws❳ "}
 AWS_PROFILE_PROMPT_COLOR=${POWERLINE_AWS_PROFILE_COLOR:=208}
 

themes/powerline/powerline.base.bash

@@ -85,6 +85,16 @@ function __powerline_k8s_context_prompt() {
 	[[ -n "${kubernetes_context}" ]] && echo "${KUBERNETES_CONTEXT_THEME_CHAR}${kubernetes_context}|${KUBERNETES_CONTEXT_THEME_PROMPT_COLOR}"
 }
 
+function __powerline_k8s_namespace_prompt() {
+	local kubernetes_namespace=""
+
+	if _command_exists kubectl; then
+		kubernetes_namespace="$(k8s_namespace_prompt)"
+	fi
+
+	[[ -n "${kubernetes_namespace}" ]] && echo "${KUBERNETES_NAMESPACE_THEME_CHAR}${kubernetes_namespace}|${KUBERNETES_NAMESPACE_THEME_PROMPT_COLOR}"
+}
+
 function __powerline_python_venv_prompt() {
 	set +u
 	local python_venv=""

themes/powerline/powerline.theme.bash

@@ -52,6 +52,9 @@ TERRAFORM_CHAR=${POWERLINE_TERRAFORM_CHAR:="❲t❳ "}
 KUBERNETES_CONTEXT_THEME_CHAR=${POWERLINE_KUBERNETES_CONTEXT_CHAR:="⎈ "}
 KUBERNETES_CONTEXT_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_CONTEXT_COLOR:=26}
 
+KUBERNETES_NAMESPACE_THEME_CHAR=${POWERLINE_KUBERNETES_NAMESPACE_CHAR:="⎈ "}
+KUBERNETES_NAMESPACE_THEME_PROMPT_COLOR=${POWERLINE_KUBERNETES_NAMESPACE_COLOR:=64}
+
 AWS_PROFILE_CHAR=${POWERLINE_AWS_PROFILE_CHAR:="❲aws❳ "}
 AWS_PROFILE_PROMPT_COLOR=${POWERLINE_AWS_PROFILE_COLOR:=208}