added new scripts
This commit is contained in:
DeSqBlocki
@@ -0,0 +1,542 @@
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#!/bin/bash
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# /usr/lib/check_mk_agent/local/300/check_pm2
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set -u
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CONFIG="/etc/check_mk/pm2.conf"
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OK=0
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WARN=1
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CRIT=2
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UNKNOWN=3
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#
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# ---------------------------------------------------------------------------
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# Configuration
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# ---------------------------------------------------------------------------
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#
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if [[ ! -r "$CONFIG" ]]; then
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printf '%s\n' "${UNKNOWN} \"PM2\" - Configuration file ${CONFIG} missing or unreadable"
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exit 0
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fi
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# shellcheck disable=SC1090
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source "$CONFIG"
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PM2_USER="${PM2_USER:-root}"
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PM2_HOME="${PM2_HOME:-}"
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CHECK_PM2_UPDATES="${CHECK_PM2_UPDATES:-yes}"
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CHECK_NODE_UPDATES="${CHECK_NODE_UPDATES:-yes}"
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PM2_PACKAGE_URL="${PM2_PACKAGE_URL:-https://registry.npmjs.org/pm2/latest}"
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NODE_RELEASES_URL="${NODE_RELEASES_URL:-https://nodejs.org/dist/index.json}"
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#
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# ---------------------------------------------------------------------------
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# Requirements
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# ---------------------------------------------------------------------------
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#
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if ! command -v jq >/dev/null 2>&1; then
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printf '%s\n' "${UNKNOWN} \"PM2\" - jq is not installed"
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exit 0
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fi
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if ! command -v curl >/dev/null 2>&1; then
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printf '%s\n' "${UNKNOWN} \"PM2\" - curl is not installed"
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exit 0
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fi
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if ! id "$PM2_USER" >/dev/null 2>&1; then
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printf '%s\n' "${UNKNOWN} \"PM2\" - Configured PM2 user ${PM2_USER} does not exist"
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exit 0
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fi
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#
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# ---------------------------------------------------------------------------
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# User / PM2 environment
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# ---------------------------------------------------------------------------
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#
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USER_HOME="$(
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getent passwd "$PM2_USER" |
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cut -d: -f6
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)"
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if [[ -z "$USER_HOME" ]]; then
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printf '%s\n' "${UNKNOWN} \"PM2\" - Unable to determine home directory for ${PM2_USER}"
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exit 0
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fi
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if [[ -z "$PM2_HOME" ]]; then
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PM2_HOME="${USER_HOME}/.pm2"
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fi
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#
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# ---------------------------------------------------------------------------
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# Locate PM2
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# ---------------------------------------------------------------------------
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#
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PM2_BIN=""
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for candidate in \
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/usr/bin/pm2 \
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/usr/local/bin/pm2 \
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"${USER_HOME}/.local/bin/pm2"
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do
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if [[ -x "$candidate" ]]; then
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PM2_BIN="$candidate"
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break
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fi
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done
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if [[ -z "$PM2_BIN" ]]; then
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PM2_BIN="$(command -v pm2 2>/dev/null || true)"
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fi
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#
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# NVM fallback
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#
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if [[ -z "$PM2_BIN" && -d "${USER_HOME}/.nvm/versions/node" ]]; then
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PM2_BIN="$(
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find "${USER_HOME}/.nvm/versions/node" \
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-mindepth 3 \
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-maxdepth 3 \
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-type f \
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-path '*/bin/pm2' \
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-perm -u+x \
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2>/dev/null |
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sort -V |
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tail -n 1
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)"
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fi
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if [[ -z "$PM2_BIN" || ! -x "$PM2_BIN" ]]; then
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printf '%s\n' "${UNKNOWN} \"PM2\" - Unable to locate PM2 executable"
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exit 0
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fi
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PM2_BIN_DIR="$(dirname "$PM2_BIN")"
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#
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# Node used by this PM2 installation.
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#
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NODE_BIN="${PM2_BIN_DIR}/node"
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if [[ ! -x "$NODE_BIN" ]]; then
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NODE_BIN="$(command -v node 2>/dev/null || true)"
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fi
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#
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# ---------------------------------------------------------------------------
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# Retrieve PM2 process list
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# ---------------------------------------------------------------------------
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#
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if [[ "$PM2_USER" == "root" ]]; then
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PM2_JSON="$(
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PM2_HOME="$PM2_HOME" \
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PATH="${PM2_BIN_DIR}:${PATH}" \
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"$PM2_BIN" jlist 2>/dev/null
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)"
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PM2_RC=$?
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else
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PM2_JSON="$(
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runuser -u "$PM2_USER" -- \
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env \
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PM2_HOME="$PM2_HOME" \
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PATH="${PM2_BIN_DIR}:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" \
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"$PM2_BIN" jlist 2>/dev/null
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)"
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PM2_RC=$?
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fi
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if [[ $PM2_RC -ne 0 || -z "$PM2_JSON" ]]; then
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printf '%s\n' "${CRIT} \"PM2\" - Unable to retrieve PM2 process list for user ${PM2_USER}"
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exit 0
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fi
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if ! printf '%s' "$PM2_JSON" | jq -e 'type == "array"' >/dev/null 2>&1; then
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printf '%s\n' "${UNKNOWN} \"PM2\" - PM2 returned invalid JSON"
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exit 0
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fi
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PROCESS_COUNT="$(
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printf '%s' "$PM2_JSON" |
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jq 'length'
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)"
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if [[ "$PROCESS_COUNT" -eq 0 ]]; then
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printf '%s\n' "${WARN} \"PM2\" processes=0 No processes managed by PM2 for user ${PM2_USER}"
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exit 0
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fi
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#
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# ---------------------------------------------------------------------------
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# Overall PM2 state
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# ---------------------------------------------------------------------------
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#
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ONLINE_COUNT="$(
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printf '%s' "$PM2_JSON" |
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jq '[.[] | select(.pm2_env.status == "online")] | length'
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)"
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OFFLINE_COUNT=$((PROCESS_COUNT - ONLINE_COUNT))
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if [[ "$OFFLINE_COUNT" -eq 0 ]]; then
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printf '%s\n' \
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"${OK} \"PM2\" processes=${PROCESS_COUNT};;;0|online=${ONLINE_COUNT};;;0|offline=0;;;0 ${PROCESS_COUNT}/${PROCESS_COUNT} processes online"
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else
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printf '%s\n' \
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"${CRIT} \"PM2\" processes=${PROCESS_COUNT};;;0|online=${ONLINE_COUNT};;;0|offline=${OFFLINE_COUNT};;;0 ${ONLINE_COUNT}/${PROCESS_COUNT} processes online, ${OFFLINE_COUNT} not online"
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fi
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#
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# ---------------------------------------------------------------------------
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# PM2 version / update
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# ---------------------------------------------------------------------------
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#
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PM2_VERSION="$(
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PATH="${PM2_BIN_DIR}:${PATH}" \
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"$PM2_BIN" --version 2>/dev/null |
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tail -n 1 |
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tr -d '[:space:]'
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)"
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if [[ "$CHECK_PM2_UPDATES" == "yes" ]]; then
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if [[ -z "$PM2_VERSION" ]]; then
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printf '%s\n' "${UNKNOWN} \"PM2 Update\" - Unable to determine installed PM2 version"
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else
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PM2_RELEASE_RESPONSE="$(
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curl \
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--silent \
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--show-error \
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--fail \
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--connect-timeout 3 \
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--max-time 8 \
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"$PM2_PACKAGE_URL" \
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2>/dev/null
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)"
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CURL_RC=$?
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if [[ $CURL_RC -ne 0 || -z "$PM2_RELEASE_RESPONSE" ]]; then
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printf '%s\n' \
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"${UNKNOWN} \"PM2 Update\" - Installed ${PM2_VERSION}, unable to query npm registry"
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elif ! printf '%s' "$PM2_RELEASE_RESPONSE" | jq -e . >/dev/null 2>&1; then
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printf '%s\n' \
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"${UNKNOWN} \"PM2 Update\" - npm registry returned invalid JSON"
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else
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PM2_LATEST="$(
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printf '%s' "$PM2_RELEASE_RESPONSE" |
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jq -r '.version // empty'
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)"
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if [[ -z "$PM2_LATEST" ]]; then
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printf '%s\n' \
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"${UNKNOWN} \"PM2 Update\" - Unable to determine latest PM2 version"
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else
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NEWEST="$(
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printf '%s\n%s\n' \
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"$PM2_VERSION" \
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"$PM2_LATEST" |
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sort -V |
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tail -n 1
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)"
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if [[ "$PM2_VERSION" == "$PM2_LATEST" ]]; then
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printf '%s\n' \
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"${OK} \"PM2 Update\" - Current: installed ${PM2_VERSION}, latest ${PM2_LATEST}"
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elif [[ "$NEWEST" == "$PM2_LATEST" ]]; then
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printf '%s\n' \
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"${WARN} \"PM2 Update\" - Update available: installed ${PM2_VERSION}, latest ${PM2_LATEST}"
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else
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printf '%s\n' \
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"${OK} \"PM2 Update\" - Installed ${PM2_VERSION} is newer than latest ${PM2_LATEST}"
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fi
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fi
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fi
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fi
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fi
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#
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# ---------------------------------------------------------------------------
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# Node.js / NVM version
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# ---------------------------------------------------------------------------
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#
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if [[ "$CHECK_NODE_UPDATES" == "yes" ]]; then
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if [[ -z "$NODE_BIN" || ! -x "$NODE_BIN" ]]; then
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printf '%s\n' "${UNKNOWN} \"Node.js Update\" - Unable to locate Node.js executable"
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else
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NODE_VERSION="$(
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"$NODE_BIN" --version 2>/dev/null |
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sed 's/^v//'
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)"
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if [[ -z "$NODE_VERSION" ]]; then
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printf '%s\n' "${UNKNOWN} \"Node.js Update\" - Unable to determine installed Node.js version"
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else
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NODE_RELEASES="$(
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curl \
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--silent \
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--show-error \
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--fail \
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--connect-timeout 3 \
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--max-time 8 \
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"$NODE_RELEASES_URL" \
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2>/dev/null
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)"
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CURL_RC=$?
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if [[ $CURL_RC -ne 0 || -z "$NODE_RELEASES" ]]; then
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printf '%s\n' \
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"${UNKNOWN} \"Node.js Update\" - Installed ${NODE_VERSION}, unable to query Node.js releases"
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elif ! printf '%s' "$NODE_RELEASES" | jq -e 'type == "array"' >/dev/null 2>&1; then
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printf '%s\n' \
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"${UNKNOWN} \"Node.js Update\" - Node.js release API returned invalid data"
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else
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INSTALLED_MAJOR="${NODE_VERSION%%.*}"
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LATEST_CURRENT="$(
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printf '%s' "$NODE_RELEASES" |
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jq -r '
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[
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.[]
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| select(.lts == false)
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| .version
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][0] // empty
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' |
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sed 's/^v//'
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)"
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LATEST_LTS="$(
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printf '%s' "$NODE_RELEASES" |
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jq -r '
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[
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.[]
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| select(.lts != false)
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| .version
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][0] // empty
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' |
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sed 's/^v//'
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)"
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LATEST_SAME_MAJOR="$(
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printf '%s' "$NODE_RELEASES" |
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jq -r \
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--arg prefix "v${INSTALLED_MAJOR}." '
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[
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.[]
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| select(.version | startswith($prefix))
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| .version
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][0] // empty
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' |
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sed 's/^v//'
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)"
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SAME_MAJOR_LTS="$(
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printf '%s' "$NODE_RELEASES" |
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jq -r \
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--arg prefix "v${INSTALLED_MAJOR}." '
|
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[
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.[]
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||||
| select(.version | startswith($prefix))
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||||
| .lts
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][0] // false
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'
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)"
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|
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#
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# If no releases for the installed major exist in the current
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# Node.js release index, consider it unsupported/EOL.
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#
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if [[ -z "$LATEST_SAME_MAJOR" ]]; then
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printf '%s\n' \
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"${WARN} \"Node.js Update\" - Installed ${NODE_VERSION} appears unsupported/EOL; latest LTS ${LATEST_LTS}, current ${LATEST_CURRENT}"
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|
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elif [[ "$SAME_MAJOR_LTS" == "false" && "$INSTALLED_MAJOR" -lt "${LATEST_CURRENT%%.*}" ]]; then
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printf '%s\n' \
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"${WARN} \"Node.js Update\" - Installed ${NODE_VERSION} is on a non-LTS release line; latest LTS ${LATEST_LTS}, current ${LATEST_CURRENT}"
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|
||||
elif [[ "$NODE_VERSION" != "$LATEST_SAME_MAJOR" ]]; then
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||||
NEWEST="$(
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printf '%s\n%s\n' \
|
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"$NODE_VERSION" \
|
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"$LATEST_SAME_MAJOR" |
|
||||
sort -V |
|
||||
tail -n 1
|
||||
)"
|
||||
|
||||
if [[ "$NEWEST" == "$LATEST_SAME_MAJOR" ]]; then
|
||||
printf '%s\n' \
|
||||
"${WARN} \"Node.js Update\" - Update available in Node ${INSTALLED_MAJOR}.x: installed ${NODE_VERSION}, latest ${LATEST_SAME_MAJOR}; latest LTS ${LATEST_LTS}"
|
||||
else
|
||||
printf '%s\n' \
|
||||
"${OK} \"Node.js Update\" - Installed ${NODE_VERSION}; latest LTS ${LATEST_LTS}, current ${LATEST_CURRENT}"
|
||||
fi
|
||||
|
||||
else
|
||||
|
||||
printf '%s\n' \
|
||||
"${OK} \"Node.js Update\" - Current on Node ${INSTALLED_MAJOR}.x: ${NODE_VERSION}; latest LTS ${LATEST_LTS}, current ${LATEST_CURRENT}"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
#
|
||||
# ---------------------------------------------------------------------------
|
||||
# Individual PM2 processes
|
||||
# ---------------------------------------------------------------------------
|
||||
#
|
||||
|
||||
while IFS= read -r PROCESS; do
|
||||
|
||||
NAME="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.name // "unknown"'
|
||||
)"
|
||||
|
||||
STATUS="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.pm2_env.status // "unknown"'
|
||||
)"
|
||||
|
||||
PID="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.pid // 0'
|
||||
)"
|
||||
|
||||
RESTARTS="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.pm2_env.restart_time // 0'
|
||||
)"
|
||||
|
||||
CRON_RESTART="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.pm2_env.cron_restart // empty'
|
||||
)"
|
||||
|
||||
AUTORESTART="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.pm2_env.autorestart // true'
|
||||
)"
|
||||
|
||||
CPU="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.monit.cpu // 0'
|
||||
)"
|
||||
|
||||
MEMORY_BYTES="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.monit.memory // 0'
|
||||
)"
|
||||
|
||||
START_TIME="$(
|
||||
printf '%s' "$PROCESS" |
|
||||
jq -r '.pm2_env.pm_uptime // 0'
|
||||
)"
|
||||
|
||||
NAME="${NAME//\"/\'}"
|
||||
|
||||
MEMORY_MB="$(
|
||||
awk -v bytes="$MEMORY_BYTES" \
|
||||
'BEGIN { printf "%.1f", bytes / 1024 / 1024 }'
|
||||
)"
|
||||
|
||||
NOW_MS=$(( $(date +%s) * 1000 ))
|
||||
|
||||
if [[ "$START_TIME" =~ ^[0-9]+$ && "$START_TIME" -gt 0 ]]; then
|
||||
|
||||
UPTIME_SECONDS="$(
|
||||
awk -v now="$NOW_MS" -v start="$START_TIME" \
|
||||
'BEGIN {
|
||||
diff = (now - start) / 1000
|
||||
if (diff < 0) diff = 0
|
||||
printf "%.0f", diff
|
||||
}'
|
||||
)"
|
||||
|
||||
else
|
||||
UPTIME_SECONDS=0
|
||||
fi
|
||||
|
||||
DAYS=$((UPTIME_SECONDS / 86400))
|
||||
HOURS=$(((UPTIME_SECONDS % 86400) / 3600))
|
||||
MINUTES=$(((UPTIME_SECONDS % 3600) / 60))
|
||||
|
||||
if [[ "$DAYS" -gt 0 ]]; then
|
||||
UPTIME_TEXT="${DAYS}d ${HOURS}h ${MINUTES}m"
|
||||
elif [[ "$HOURS" -gt 0 ]]; then
|
||||
UPTIME_TEXT="${HOURS}h ${MINUTES}m"
|
||||
else
|
||||
UPTIME_TEXT="${MINUTES}m"
|
||||
fi
|
||||
|
||||
STATE=$OK
|
||||
STATE_TEXT="Online"
|
||||
|
||||
if [[ "$STATUS" != "online" ]]; then
|
||||
STATE=$CRIT
|
||||
STATE_TEXT="Status ${STATUS}"
|
||||
fi
|
||||
|
||||
if [[ -n "$CRON_RESTART" ]]; then
|
||||
RESTART_INFO="restarts ${RESTARTS}, scheduled restart ${CRON_RESTART}"
|
||||
else
|
||||
RESTART_INFO="restarts ${RESTARTS}"
|
||||
fi
|
||||
|
||||
if [[ "$AUTORESTART" == "false" ]]; then
|
||||
RESTART_INFO="${RESTART_INFO}, autorestart disabled"
|
||||
fi
|
||||
|
||||
PERFDATA="cpu=${CPU}%;;;0;100|memory=${MEMORY_BYTES}B;;;0|restarts=${RESTARTS};;;0|uptime=${UPTIME_SECONDS}s;;;0"
|
||||
|
||||
printf '%s\n' \
|
||||
"${STATE} \"PM2 ${NAME}\" ${PERFDATA} ${STATE_TEXT} - PID ${PID}, uptime ${UPTIME_TEXT}, CPU ${CPU}%, memory ${MEMORY_MB} MiB, ${RESTART_INFO}"
|
||||
|
||||
done < <(
|
||||
printf '%s' "$PM2_JSON" |
|
||||
jq -c '.[]'
|
||||
)
|
||||
|
||||
exit 0
|
||||
Reference in New Issue
Block a user