124 lines
4.5 KiB
Bash
124 lines
4.5 KiB
Bash
#! /usr/bin/env bash
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# shellcheck disable=SC2034,SC1090
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# SC2034 variables appear unsued. export if used externally
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# - uneeded, as this checked whether script is sourced
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# SC1090 Can't follow non-constant source
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# Use basename instead of ${0:##*/} to be POSIX compliant
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# Some shells return -<name> in $0 when sourced, ${0#-} drops that initial dash
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BASE_0=${BASE_0:-$(basename -- "${0#-}")}
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SCRIPT_DIR=${SCRIPT_DIR:-"$( cd -- "$( dirname -- "$0" )" &> /dev/null && pwd )"}
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BASE_SHELL=$(basename "$SHELL")
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# Helper function
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is_sourced() {
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DBG_="$(
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printf '\n\t\t%-12s%s' '$0:' "$0" BASE_0: "$BASE_0" BASE_SHELL: "$BASE_SHELL"
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)"
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if [ -n "$ZSH_VERSION" ]; then
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case $ZSH_EVAL_CONTEXT in *:file:*) return 0;; esac
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else
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case "$(basename -- "${0}")" in $BASE_SHELL|-$BASE_SHELL) return 0;; esac
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fi
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return 1; # NOT sourced.
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}
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if [[ "$1" == '-' ]]; then
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printf 'BASE_0="%s"\nSCRIPT_DIR=%s\n' "${BASE_0}" "${SCRIPT_DIR}"
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cat "${BASH_SOURCE[0]}"
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elif is_sourced; then
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# This part is sourced, and might run in a non-bash shell
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DBG_="Is Sourced"
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USER_HOME=$HOME
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[[ -n "${SUDO_USER}" ]] && USER_HOME="$(eval "echo ~${SUDO_USER}")"
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[[ -n "$KUBECONFIG" && -r "$KUBECONFIG" ]] || unset KUBECONFIG
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[[ ! -r "$HOME/.kube/config" ]] \
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|| export KUBECONFIG="${KUBECONFIG:-$HOME/.kube/config}"
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if [[ -z "$KUBECONFIG" && -z "$FIX_KUBECTL_RECALL" ]]; then
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(unset kubectl 2>/dev/null) || (unalias kubectl 2>/dev/null) || true
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export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
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fi
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(unset kubectl-fix 2> /dev/null) || true
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DBG_="Check if k3s exists, but kubectl isn't available"
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if (type 'k3s' >/dev/null 2>&1) && ! (type 'kubectl' >/dev/null 2>&1); then
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DBG_="Define kubectl"
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if [[ -r "${KUBECONFIG}" ]]; then
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kubectl() { k3s kubectl "${@}"; }
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elif [[ -n "${KUBECONFIG}" && -e "${KUBECONFIG}" ]]; then
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eval "
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kubectl-fix() {
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mkdir \"$HOME/.kube\" -p
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if [[ -e \"\${KUBECONFIG}\" && ! -r \"$HOME/.kube/config\" ]]; then
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sudo install --mod 600 --owner \"$USER\" \"\${KUBECONFIG}\" \"$HOME/.kube/config\"
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unset KUBECONFIG
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fi
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FIX_KUBECTL_RECALL=1 . \"${SCRIPT_DIR}/${BASE_0}\"
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}"
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printf '%s\n' \
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"KUBECONFIG[${KUBECONFIG}] exsits, but is unreadable." \
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'Run kubectl-fix (which will invoke sudo) to fix'
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fi
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fi
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if (type 'kubectl' >/dev/null 2>&1); then
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. <( kubectl completion "${BASE_SHELL}" )
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if (type 'kubectl-cnpg' >/dev/null 2>&1 ); then
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. <( kubectl cnpg completion "${BASE_SHELL}" )
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fi
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if ! (type 'kubectl-cnpg' >/dev/null 2>&1) || [[ -n "$UPGRADE" ]]; then
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DL_VER=1.22.0
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GH_URL=https://github.com/cloudnative-pg/cloudnative-pg
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DL_FILE="kubectl-cnpg_${DL_VER}_linux_x86_64.deb"
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URL=${GH_URL}/releases/download/v${DL_VER}/${DL_FILE}
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printf '%s\n' \
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'To download and install cnpg kubectl plugin, run:' \
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" curl -sSLO ${URL}" \
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" sudo dpkg -i $DL_FILE"
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fi
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if ! (type 'kubetui' >/dev/null 2>&1) || [[ -n "$UPGRADE" ]]; then
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DL_VER=1.5.0
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GH_URL=https://github.com/sarub0b0/kubetui
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DL_FILE=kubetui-x86_64-unknown-linux-musl-rustls
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URL=${GH_URL}/releases/download/v${DL_VER}/${DL_FILE}
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printf '%s\n' \
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'To download and install kubetui, run:' \
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" curl -sSL ${URL} > ~/bin/kubetui" \
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" chmod +x ~/bin/kubetui"
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fi
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if ! (type 'k9s' >/dev/null 2>&1) || [[ -n "$UPGRADE" ]]; then
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printf '%s\n' \
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'To download and install k9s, run:' \
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" curl -sS https://webinstall.dev/k9s | bash"
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fi
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if (type 'k3s' >/dev/null 2>&1 ); then
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. <( k3s completion "${SHELL##*/}" )
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fi
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if (type 'helm' >/dev/null 2>&1); then
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. <( helm completion "${SHELL##*/}" 2>/dev/null )
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fi
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kg() {
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kubectl get "${NS:+--namespace=}${NS:---all-namespaces}" "${@:-pods}" | { sed -u 1q; sort; }
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}
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fi
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else
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SCRIPT_NAME="$BASE_0"
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printf '%s\n' \
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"It seems $SCRIPT_NAME was invoked as a script. It should be sourced instead." \
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'The easiest way is to call it like this:' \
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" $ . <( $SCRIPT_NAME - ) # Note the '-' after the script's name" \
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''
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fi
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