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added kubens/kubectx and various small changes
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,12 @@ | ||
| #compdef kubectx kctx=kubectx | ||
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| local KUBECTX="${HOME}/.kube/kubectx" | ||
| PREV="" | ||
| if [ -f "$KUBECTX" ]; then | ||
| # show '-' only if there's a saved previous context | ||
| local PREV=$(cat "${KUBECTX}") | ||
| _arguments "1: :(- | ||
| $(kubectl config get-contexts --output='name'))" | ||
| else | ||
| _arguments "1: :($(kubectl config get-contexts --output='name'))" | ||
| fi |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| #compdef kubens kns=kubens | ||
| _arguments "1: :(- $(kubectl get namespaces -o=jsonpath='{range .items[*].metadata.name}{@}{"\n"}{end}'))" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,233 @@ | ||
| #!/usr/bin/env bash | ||
| # | ||
| # kubectx(1) is a utility to manage and switch between kubectl contexts. | ||
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| # Copyright 2017 Google Inc. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
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| [[ -n $DEBUG ]] && set -x | ||
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| set -eou pipefail | ||
| IFS=$'\n\t' | ||
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| SELF_CMD="$0" | ||
| KUBECTX="${XDG_CACHE_HOME:-$HOME/.kube}/kubectx" | ||
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| usage() { | ||
| cat <<"EOF" | ||
| USAGE: | ||
| kubectx : list the contexts | ||
| kubectx <NAME> : switch to context <NAME> | ||
| kubectx - : switch to the previous context | ||
| kubectx -c, --current : show the current context name | ||
| kubectx <NEW_NAME>=<NAME> : rename context <NAME> to <NEW_NAME> | ||
| kubectx <NEW_NAME>=. : rename current-context to <NEW_NAME> | ||
| kubectx -d <NAME> [<NAME...>] : delete context <NAME> ('.' for current-context) | ||
| (this command won't delete the user/cluster entry | ||
| that is used by the context) | ||
| kubectx -h,--help : show this message | ||
| EOF | ||
| } | ||
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| exit_err() { | ||
| echo >&2 "${1}" | ||
| exit 1 | ||
| } | ||
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| current_context() { | ||
| $KUBECTL config view -o=jsonpath='{.current-context}' | ||
| } | ||
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| get_contexts() { | ||
| $KUBECTL config get-contexts -o=name | sort -n | ||
| } | ||
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| list_contexts() { | ||
| set -u pipefail | ||
| local cur ctx_list | ||
| cur="$(current_context)" || exit_err "error getting current context" | ||
| ctx_list=$(get_contexts) || exit_err "error getting context list" | ||
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| local yellow darkbg normal | ||
| yellow=$(tput setaf 3 || true) | ||
| darkbg=$(tput setab 0 || true) | ||
| normal=$(tput sgr0 || true) | ||
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| local cur_ctx_fg cur_ctx_bg | ||
| cur_ctx_fg=${KUBECTX_CURRENT_FGCOLOR:-$yellow} | ||
| cur_ctx_bg=${KUBECTX_CURRENT_BGCOLOR:-$darkbg} | ||
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| for c in $ctx_list; do | ||
| if [[ -n "${_KUBECTX_FORCE_COLOR:-}" || \ | ||
| -t 1 && -z "${NO_COLOR:-}" ]]; then | ||
| # colored output mode | ||
| if [[ "${c}" = "${cur}" ]]; then | ||
| echo "${cur_ctx_bg}${cur_ctx_fg}${c}${normal}" | ||
| else | ||
| echo "${c}" | ||
| fi | ||
| else | ||
| echo "${c}" | ||
| fi | ||
| done | ||
| } | ||
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| read_context() { | ||
| if [[ -f "${KUBECTX}" ]]; then | ||
| cat "${KUBECTX}" | ||
| fi | ||
| } | ||
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| save_context() { | ||
| local saved | ||
| saved="$(read_context)" | ||
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| if [[ "${saved}" != "${1}" ]]; then | ||
| printf %s "${1}" > "${KUBECTX}" | ||
| fi | ||
| } | ||
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| switch_context() { | ||
| $KUBECTL config use-context "${1}" | ||
| } | ||
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| choose_context_interactive() { | ||
| local choice | ||
| choice="$(_KUBECTX_FORCE_COLOR=1 \ | ||
| FZF_DEFAULT_COMMAND="${SELF_CMD}" \ | ||
| fzf --ansi || true)" | ||
| if [[ -z "${choice}" ]]; then | ||
| echo 2>&1 "error: you did not choose any of the options" | ||
| exit 1 | ||
| else | ||
| set_context "${choice}" | ||
| fi | ||
| } | ||
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| set_context() { | ||
| local prev | ||
| prev="$(current_context)" || exit_err "error getting current context" | ||
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| switch_context "${1}" | ||
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| if [[ "${prev}" != "${1}" ]]; then | ||
| save_context "${prev}" | ||
| fi | ||
| } | ||
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| swap_context() { | ||
| local ctx | ||
| ctx="$(read_context)" | ||
| if [[ -z "${ctx}" ]]; then | ||
| echo "error: No previous context found." >&2 | ||
| exit 1 | ||
| fi | ||
| set_context "${ctx}" | ||
| } | ||
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| context_exists() { | ||
| grep -q ^"${1}"\$ <($KUBECTL config get-contexts -o=name) | ||
| } | ||
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| rename_context() { | ||
| local old_name="${1}" | ||
| local new_name="${2}" | ||
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| if [[ "${old_name}" == "." ]]; then | ||
| old_name="$(current_context)" | ||
| fi | ||
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| if ! context_exists "${old_name}"; then | ||
| echo "error: Context \"${old_name}\" not found, can't rename it." >&2 | ||
| exit 1 | ||
| fi | ||
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| if context_exists "${new_name}"; then | ||
| echo "Context \"${new_name}\" exists, deleting..." >&2 | ||
| $KUBECTL config delete-context "${new_name}" 1>/dev/null 2>&1 | ||
| fi | ||
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| $KUBECTL config rename-context "${old_name}" "${new_name}" | ||
| } | ||
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| delete_contexts() { | ||
| for i in "${@}"; do | ||
| delete_context "${i}" | ||
| done | ||
| } | ||
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| delete_context() { | ||
| local ctx | ||
| ctx="${1}" | ||
| if [[ "${ctx}" == "." ]]; then | ||
| ctx="$(current_context)" || exit_err "error getting current context" | ||
| fi | ||
| echo "Deleting context \"${ctx}\"..." >&2 | ||
| $KUBECTL config delete-context "${ctx}" | ||
| } | ||
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| main() { | ||
| if hash kubectl 2>/dev/null; then | ||
| KUBECTL=kubectl | ||
| elif hash kubectl.exe 2>/dev/null; then | ||
| KUBECTL=kubectl.exe | ||
| else | ||
| echo >&2 "kubectl is not installed" | ||
| exit 1 | ||
| fi | ||
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| if [[ "$#" -eq 0 ]]; then | ||
| if [[ -t 1 && -z "${KUBECTX_IGNORE_FZF:-}" && "$(type fzf &>/dev/null; echo $?)" -eq 0 ]]; then | ||
| choose_context_interactive | ||
| else | ||
| list_contexts | ||
| fi | ||
| elif [[ "${1}" == "-d" ]]; then | ||
| if [[ "$#" -lt 2 ]]; then | ||
| echo "error: missing context NAME" >&2 | ||
| usage | ||
| exit 1 | ||
| fi | ||
| delete_contexts "${@:2}" | ||
| elif [[ "$#" -gt 1 ]]; then | ||
| echo "error: too many arguments" >&2 | ||
| usage | ||
| exit 1 | ||
| elif [[ "$#" -eq 1 ]]; then | ||
| if [[ "${1}" == "-" ]]; then | ||
| swap_context | ||
| elif [[ "${1}" == '-c' || "${1}" == '--current' ]]; then | ||
| # we don't call current_context here for two reasons: | ||
| # - it does not fail when current-context property is not set | ||
| # - it does not return a trailing newline | ||
| kubectl config current-context | ||
| elif [[ "${1}" == '-h' || "${1}" == '--help' ]]; then | ||
| usage | ||
| elif [[ "${1}" =~ ^-(.*) ]]; then | ||
| echo "error: unrecognized flag \"${1}\"" >&2 | ||
| usage | ||
| exit 1 | ||
| elif [[ "${1}" =~ (.+)=(.+) ]]; then | ||
| rename_context "${BASH_REMATCH[2]}" "${BASH_REMATCH[1]}" | ||
| else | ||
| set_context "${1}" | ||
| fi | ||
| else | ||
| usage | ||
| exit 1 | ||
| fi | ||
| } | ||
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| main "$@" |
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