Adding some k8s related tools
This commit is contained in:
Lockszmith
parent
727bd2b882
commit
c6022128ec
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#! /usr/bin/env bash
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if [[ "$0" == "$SHELL" ]]; then
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if [[ -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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[[ 'function' == $(type -t kubectl-fix) ]] && unset kubectl-fix
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[[ ! -r "$HOME/.kube/config" ]] \
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|| export KUBECONFIG="${KUBECONFIG:-$HOME/.kube/config}"
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if [[ -n "$(type -t 'k3s')" && -z "$(type -t 'kubectl')" ]]; then
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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 . \"$BASH_SOURCE\"
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}"
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fi
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fi
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if [[ -n "$(type -t 'kubectl')" ]]; then
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. <( kubectl completion ${SHELL##*/} )
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if [[ -n "$(type -t 'kubectl-cnpg')" ]]; then
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. <( kubectl cnpg completion ${SHELL##*/} )
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else
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CNPG_VER="${CNPG_VER:-1.20.2}"
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GH_URL=https://github.com/cloudnative-pg/cloudnative-pg
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DEB_FILE="kubectl-cnpg_${CNPG_VER}_linux_x86_64.deb"
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URL=${GH_URL}/releases/download/v${CNPG_VER}/${DEB_FILE}
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printf '%s\n' \
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'To download adn install cnpg kubectl plugin, run:' \
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" wget ${URL}" \
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" sudo dpkg -i $DEB_FILE"
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fi
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if [[ -n "$(type -t 'k3s')" ]]; then
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. <( k3s completion ${SHELL##*/} )
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fi
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if [[ -n "$(type -t 'helm')" ]]; 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} "${@}" | { sed -u 1q; sort; }
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}
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fi
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elif [[ "$1" == '-' ]]; then
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cat $0
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else
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SCRIPT_NAME="$(basename $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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" $ . <( $SCRIPT_NAME - ) # Note the '-' after the script's name" \
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''
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fi
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@ -0,0 +1,135 @@
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#! /usr/bin/env bash
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SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
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USER_HOME=$HOME
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[[ -n "${SUDO_USER}" ]] && USER_HOME="$(eval "echo ~${SUDO_USER}")"
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. ${SHRC_D:-$SCRIPT_DIR}/01_util.functions
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set -e
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JSON=0
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if [[ " $* " =~ " --help " ]]; then
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cat <<USAGE
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Usage:
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./kube-get-secrets.sh --help
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sudo ./kube-get-secrets.sh [--json]
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Description:
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USAGE
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exit 0
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fi
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ARGS=()
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ARGS_MODE=1
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ALL=0
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while [[ -n "$1" ]]; do
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if [[ "$ARGS_MODE" -eq 1 && "$1" =~ ^-- ]]; then
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case "$1" in
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"--json")
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JSON=1
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;;
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"--force")
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ALL=1
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;;
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"--")
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ARGS_MODE='--'
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;;
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*)
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ARGS=("${ARGS[@]}" "$1")
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esac
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else
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ARGS=("${ARGS[@]}" "$1")
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fi
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shift
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done
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# require_root
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QUERY_NAMESPACE=' -A'
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[[ ${#ARGS[@]} -eq 0 ]] || QUERY_NAMESPACE=$( printf -- ' --namespace=ix-%s' "${ARGS[@]}" )
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jqcode='
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.items[] | select(.metadata.name|test("."))
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| {
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"name": .metadata.namespace,
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"app": (
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if .metadata.labels."app.kubernetes.io/instance" != null then
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.metadata.labels."app.kubernetes.io/instance"
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else
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.metadata.labels."cnpg.io/cluster"
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end
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),
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,"data":
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,"raw": .
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} | {
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"name": .name,
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"app": .app,
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"url": (
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if (.url|type) == "object" then
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""
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else
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.url
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end
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),
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"data": (
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if (.url|type) == "object" then
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.url
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else
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.url |
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match("(.*)://(.+):(.+)@([^:]+)(:(\\d+))?/(.*)$") | .captures | {
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"protocol": .[0].string,
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"username": .[1].string,
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"password": .[2].string,
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"passwordlen": .[2].string | length,
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"host": .[3].string,
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"safeport": .[4].string,
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"port": .[5].string,
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"dbname": .[6].string,
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}
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end
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)
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} | {
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"name": .name,
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"raw_url": .url,
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"url": "\(.data.protocol)://\(.data.username)@\(.data.password):\(.data.host).\(.name).svc.cluster.local\(.data.safeport)/\(.data.dbname)",
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"safeurl": "\(.data.protocol)://\(.data.username)@*******:\(.data.host).\(.name).svc.cluster.local\(.data.safeport)/\(.data.dbname)",
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"protocol": .data.protocol,
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"username": .data.username,
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"password": .data.password,
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"pwd_len": .data.passwordlen,
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"host": "\(.data.host).\(.name).svc.cluster.local",
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"port": .data.port,
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"dbname": .data.dbname
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}
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'
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[[ "$ALL" -eq 1 ]] || jqcode="$jqcode | select( .raw_url != \"\" )"
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json_results="$(
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<<<"${QUERY_NAMESPACE}" \
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xargs -n1 k3s kubectl \
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get secrets \
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--output json \
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| jq "$jqcode"
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)"
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[[ "$JSON" -eq 1 ]] && echo "$json_results" && exit 0
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JQ_COLS="[$( <<<"\"$TCDBCOLS\"" \
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jq -r '. | split(",") | map( "\"\(.)\"" ) | join(",")'
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)]"
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JQ_COLS_REGEX="$( <<<"$JQ_COLS" \
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jq -r '. | map ( ".\(.)" ) | join(",")'
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)"
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[[ -z "$NOHEAD" ]] || JQ_COLS=
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jqcode='
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['"${JQ_COLS^^}"'] + [.[] |
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['"$JQ_COLS_REGEX"']
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] | .[] | join("|")
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'
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<<<"$json_results" jq -s '.' | jq -r "$jqcode" | column -t -s "|"
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exit 0
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@ -0,0 +1,268 @@
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#! /usr/bin/env bash
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# [LICENSE: GPL3](https://www.gnu.org/licenses/gpl-3.0.en.html)
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# Author: [Lockszmith](https://stackexchange.com/users/421248/lockszmith) 2023-10(Oct)-08
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set -e
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eval "$SETX"
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ZELLIJ_PATH="${ZELLIJ_PATH:-$(which zellij)}" || true
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NOZELLIJ=${NOZELLIJ:-$NOWATCH}
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NOWATCH=${NOWATCH:-$NOZELLIJ}
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main() {
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if [[ -n "${ZELLIJ_PATH}" && -x "${ZELLIJ_PATH}" && -z "$NOZELLIJ" ]]; then
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printf "Starting zellij layout..." >&2
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$ZELLIJ_PATH ${INTAB:+action new-tab} --layout <(
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get_zellij_layout
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# ZELLIJ_PATH="$ZELLIJ_PATH" APP="$APP" NS="$NS" TAIL="$TAIL" \
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# envsubst < ~/watch-k3s-app.kdl
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)
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else
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unset ZELLIJ_PATH
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export NOZELLIJ=1 APP="$APP"
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$0 -- "charts"
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$0 -- "pvc"
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$0 -- "apps"
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$0 -- "services"
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$0 -- "events"
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$0 -- "pods"
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$0 -- "cnpg"
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$0 -- "logs"
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fi
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}
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get_zellij_layout() {
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cat - <<ZELLIJ_LAYOUT
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layout {
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pane_template name="watch_k3s_app" {
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command "$HOME/bin/watch-k3s-app"
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}
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pane_template name="charts" {
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watch_k3s_app name="CHARTS" size=5 {
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args "--" "charts" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="pvc" {
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watch_k3s_app name="PERSISTENT VOLUME CLAIMS (PVC)" size=9 {
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args "--" "pvc" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="apps" {
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watch_k3s_app name="DEPLOYMENT.APPS" {
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args "--" "apps" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="services" {
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watch_k3s_app name="SERVICES" size=9 {
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args "--" "services" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="services_and_apps" {
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pane split_direction="vertical" {
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apps size="35%"
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services
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}
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}
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pane_template name="events" {
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watch_k3s_app name="EVENTS" size=9 {
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args "--" "events" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="pods" {
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watch_k3s_app name="PODS" {
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args "--" "pods" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="pods_and_events" {
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pane split_direction="vertical" {
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pods size="40%"
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events
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}
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}
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pane_template name="logs" {
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watch_k3s_app name="LOGS ${APP}" {
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args "--" "logs" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="cnpg" {
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watch_k3s_app name="CLOUDNATIVE POSTGRESQL" size=9 {
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args "--" "cnpg" "KUBECONFIG=${KUBECONFIG}" "NS=${NS}" "APP=${APP}" "TAIL=${TAIL}" "SETX=${SETX}"
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}
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}
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pane_template name="logs_and_cnpg" {
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pane split_direction="vertical" {
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logs size="65%"
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cnpg
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}
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}
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pane split_direction="horizontal" {
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pane size=1 command="printf" borderless=true {
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args "### Watching kubernetes environment ${NS} --- [Ctrl+x] to close | [mouse-click]+[F11] Expand Pane | [Ctrl-C]+[Enter] to refersh"
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}
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// pane stacked=true {
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charts
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pvc
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// }
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services_and_apps
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pods_and_events
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logs_and_cnpg
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}
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}
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keybinds {
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shared {
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bind "Ctrl x" { CloseTab; }
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bind "F11" { ToggleFocusFullscreen; }
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}
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}
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pane_frames true
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ZELLIJ_LAYOUT
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}
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repeat_out() {
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dd if=/dev/zero bs=${2:-10} count=1 2>/dev/null | tr '\0' "${1:?Repeat character missing}"
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}
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visual_sleep() {
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local SLEEP=$(( 0 + ${1:-2} )) MSG="${MSG:-Restarting in %s %s}"
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tput sc;
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while (( SLEEP > 0 )); do
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tput el; printf "$MSG" "${SLEEP}s" "$(repeat_out . ${SLEEP})"
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sleep 1s
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tput rc 1; tput el;
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(( SLEEP-=1 )) || true
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done
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}
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[[ "$1" == "--" ]] || APP=${APP:-${1}}
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NS=${APP:+--namespace=ix-}${APP:---all-namespaces}
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case $1 in
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"--help")
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cat - <<USAGE
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Watch k3s apps (with zellij support) for TrueChart Apps on TrueNAS SCALE
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Usage:
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$(basename $0) [Installed App Name]
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$(basename $0) -- <output type> [<Set Expression1> [<Set Expression...>]]
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Invokation modifiers (environment variable):
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[NOREPEAT=1] [NOWATCH=1] [SLEEP=3] $(basename $0) ...
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Description:
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This script will pull from k3s the follwing:
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charts (helm charts)
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pvc
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apps (deployment.apps)
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services
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events
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pods
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cnpg status (applicable for APP only)
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contianer-logs (applicable for APP only)
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By default, if zellij exists, it will WATCH all of these for
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changes in parallel.
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If zellij doesn't exist, it will list all, SLEEP for a few seconds,
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then REPEAT.
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To produce output to share in bug reports, calling with
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NOREPEAT=1 NOWATCH=1 ...
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will output all the details and exit.
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If an APP is specified, output is confined to the specific
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namespace and service. Otherwise, it will output information about
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k3s all-namespaces.
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* For cnpg status, the cnpg plugin needs to be installed.
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On TrueNAS SCALE, this install might be required after a reboot.
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Zellij specific support
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When zellij exists and running, zellij will create a set of panes
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with the above list of views watching for changes in parallel.
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It maps <Ctrl>-<X> as the exit key.
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and it maps <F11> as a Full-Screen toggle, to use it you need to
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select inside a pane with a mouse, and then click the key.
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USAGE
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;;
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"--")
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eval "${*:3}"
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export KUBECONFIG
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K_WATCH="${ZELLIJ_PATH:+--watch-only --no-headers}"
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C_WATCH="watch -tcn4"
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[[ -z "$NOZELLIJ" && -z "$NOWATCH" ]] || { K_WATCH=''; C_WATCH='eval'; }
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case "$2" in
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"charts")
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${C_WATCH} "helm list ${NS} | sort"
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;;
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"pvc")
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k3s kubectl get pvc ${NS} --sort-by='.metadata.creationTimestamp'
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[[ -z "${K_WATCH}" ]] || k3s kubectl get pvc ${NS} ${K_WATCH}
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;;
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"apps")
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k3s kubectl get deployment.apps ${NS} --sort-by='.metadata.creationTimestamp'
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[[ -z "${K_WATCH}" ]] || k3s kubectl get deployment.apps ${NS} ${K_WATCH}
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;;
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"services")
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k3s kubectl get services ${NS} --sort-by='.metadata.creationTimestamp'
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[[ -z "${K_WATCH}" ]] || k3s kubectl get services ${NS} ${K_WATCH}
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;;
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"events")
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k3s kubectl get events ${NS} --sort-by='.metadata.creationTimestamp'
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[[ -z "${K_WATCH}" ]] || k3s kubectl get events ${NS} ${K_WATCH} \
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;;
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"pods")
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k3s kubectl get pods ${NS} --sort-by='.metadata.creationTimestamp'
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[[ -z "${K_WATCH}" ]] || k3s kubectl get pods ${NS} \
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${K_WATCH};
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;;
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"cnpg")
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sleep 0.4s;
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[[ -n "${APP}" ]] \
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&& ${C_WATCH} "k3s kubectl cnpg status ${NS} ${APP}-cnpg-main" \
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|| k3s kubectl get clusters.postgresql.cnpg.io ${NS} ${K_WATCH}
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;;
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"logs")
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MSG='N/A with --all-namespaces'
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if [[ -n "${APP}" ]]; then
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MSG="no pods active for $APP"
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APP=($(k3s kubectl get pods ${NS} --output name | grep -E "^pod/$APP(-[^-]+){2}$"))
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||||
|
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FOLLOW='--follow'
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[[ -z "$NOWATCH" ]] || { FOLLOW=''; TAIL=${TAIL:-40}; }
|
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|
||||
while ! k3s kubectl logs ${NS} ${FOLLOW} ${TAIL:+--tail=${TAIL}} \
|
||||
"${APP}"; do
|
||||
printf 'could not load logs, checking for previous logs...\n'
|
||||
k3s kubectl logs ${NS} -p ${TAIL:+--tail=${TAIL}} "${APP}" \
|
||||
|| printf "${MSG}"
|
||||
|
||||
[[ -z "$NOWATCH" ]] || break;
|
||||
visual_sleep ${SLEEP:-3}
|
||||
done
|
||||
fi
|
||||
;;
|
||||
*)
|
||||
printf "Don't know how to handle $2\n" 1>&2;
|
||||
false;
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
*)
|
||||
while main "$1" && [[ -z "$NOREPEAT" ]]; do
|
||||
tput cuu1;
|
||||
visual_sleep ${SLEEP:-3}
|
||||
done
|
||||
esac
|
||||
|
||||
Loading…
Reference in New Issue