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Diffstat (limited to '')
| -rw-r--r-- | packaging/installer/functions.sh | 1054 |
1 files changed, 1054 insertions, 0 deletions
diff --git a/packaging/installer/functions.sh b/packaging/installer/functions.sh new file mode 100644 index 0000000..03ceb2a --- /dev/null +++ b/packaging/installer/functions.sh @@ -0,0 +1,1054 @@ +#!/bin/bash + +# SPDX-License-Identifier: GPL-3.0-or-later + +# make sure we have a UID +[ -z "${UID}" ] && UID="$(id -u)" + +# ----------------------------------------------------------------------------- + +setup_terminal() { + TPUT_RESET="" + TPUT_BLACK="" + TPUT_RED="" + TPUT_GREEN="" + TPUT_YELLOW="" + TPUT_BLUE="" + TPUT_PURPLE="" + TPUT_CYAN="" + TPUT_WHITE="" + TPUT_BGBLACK="" + TPUT_BGRED="" + TPUT_BGGREEN="" + TPUT_BGYELLOW="" + TPUT_BGBLUE="" + TPUT_BGPURPLE="" + TPUT_BGCYAN="" + TPUT_BGWHITE="" + TPUT_BOLD="" + TPUT_DIM="" + TPUT_UNDERLINED="" + TPUT_BLINK="" + TPUT_INVERTED="" + TPUT_STANDOUT="" + TPUT_BELL="" + TPUT_CLEAR="" + + # Is stderr on the terminal? If not, then fail + test -t 2 || return 1 + + if command -v tput 1> /dev/null 2>&1; then + if [ $(($(tput colors 2> /dev/null))) -ge 8 ]; then + # Enable colors + TPUT_RESET="$(tput sgr 0)" + # shellcheck disable=SC2034 + TPUT_BLACK="$(tput setaf 0)" + TPUT_RED="$(tput setaf 1)" + TPUT_GREEN="$(tput setaf 2)" + # shellcheck disable=SC2034 + TPUT_YELLOW="$(tput setaf 3)" + # shellcheck disable=SC2034 + TPUT_BLUE="$(tput setaf 4)" + # shellcheck disable=SC2034 + TPUT_PURPLE="$(tput setaf 5)" + TPUT_CYAN="$(tput setaf 6)" + TPUT_WHITE="$(tput setaf 7)" + # shellcheck disable=SC2034 + TPUT_BGBLACK="$(tput setab 0)" + TPUT_BGRED="$(tput setab 1)" + TPUT_BGGREEN="$(tput setab 2)" + # shellcheck disable=SC2034 + TPUT_BGYELLOW="$(tput setab 3)" + # shellcheck disable=SC2034 + TPUT_BGBLUE="$(tput setab 4)" + # shellcheck disable=SC2034 + TPUT_BGPURPLE="$(tput setab 5)" + # shellcheck disable=SC2034 + TPUT_BGCYAN="$(tput setab 6)" + # shellcheck disable=SC2034 + TPUT_BGWHITE="$(tput setab 7)" + TPUT_BOLD="$(tput bold)" + TPUT_DIM="$(tput dim)" + # shellcheck disable=SC2034 + TPUT_UNDERLINED="$(tput smul)" + # shellcheck disable=SC2034 + TPUT_BLINK="$(tput blink)" + # shellcheck disable=SC2034 + TPUT_INVERTED="$(tput rev)" + # shellcheck disable=SC2034 + TPUT_STANDOUT="$(tput smso)" + # shellcheck disable=SC2034 + TPUT_BELL="$(tput bel)" + # shellcheck disable=SC2034 + TPUT_CLEAR="$(tput clear)" + fi + fi + + return 0 +} +setup_terminal || echo > /dev/null + +progress() { + echo >&2 " --- ${TPUT_DIM}${TPUT_BOLD}${*}${TPUT_RESET} --- " +} + +get() { + url="${1}" + if command -v curl > /dev/null 2>&1; then + curl -q -o - -sSL --connect-timeout 10 --retry 3 "${url}" + elif command -v wget > /dev/null 2>&1; then + wget -T 15 -O - "${url}" + else + fatal "I need curl or wget to proceed, but neither is available on this system." + fi +} + +download_file() { + url="${1}" + dest="${2}" + name="${3}" + opt="${4}" + + if command -v curl > /dev/null 2>&1; then + run curl -q -sSL --connect-timeout 10 --retry 3 --output "${dest}" "${url}" + elif command -v wget > /dev/null 2>&1; then + run wget -T 15 -O "${dest}" "${url}" + else + echo >&2 + echo >&2 "Downloading ${name} from '${url}' failed because of missing mandatory packages." + if [ -n "$opt" ]; then + echo >&2 "Either add packages or disable it by issuing '--disable-${opt}' in the installer" + fi + echo >&2 + + run_failed "I need curl or wget to proceed, but neither is available on this system." + fi +} + +# ----------------------------------------------------------------------------- +# external component handling + +fetch_and_verify() { + local component=${1} + local url=${2} + local base_name=${3} + local tmp=${4} + local override=${5} + + if [ -z "${override}" ]; then + download_file "${url}" "${tmp}/${base_name}" "${component}" + else + progress "Using provided ${component} archive ${override}" + run cp "${override}" "${tmp}/${base_name}" + fi + + if [ ! -f "${tmp}/${base_name}" ] || [ ! -s "${tmp}/${base_name}" ]; then + run_failed "Unable to find usable archive for ${component}" + return 1 + fi + + grep "${base_name}\$" "${INSTALLER_DIR}/packaging/${component}.checksums" > "${tmp}/sha256sums.txt" 2> /dev/null + + # Checksum validation + if ! (cd "${tmp}" && safe_sha256sum -c "sha256sums.txt"); then + run_failed "${component} files checksum validation failed." + return 1 + fi +} + +# ----------------------------------------------------------------------------- + +netdata_banner() { + local l1=" ^" \ + l2=" |.-. .-. .-. .-. .-. .-. .-. .-. .-. .-. .-. .-. .-" \ + l3=" | '-' '-' '-' '-' '-' '-' '-' '-' '-' '-' '-' '-' " \ + l4=" +----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+--->" \ + sp=" " \ + netdata="netdata" start end msg="${*}" chartcolor="${TPUT_DIM}" + + [ ${#msg} -lt ${#netdata} ] && msg="${msg}${sp:0:$((${#netdata} - ${#msg}))}" + [ ${#msg} -gt $((${#l2} - 20)) ] && msg="${msg:0:$((${#l2} - 23))}..." + + start="$((${#l2} / 2 - 4))" + [ $((start + ${#msg} + 4)) -gt ${#l2} ] && start=$((${#l2} - ${#msg} - 4)) + end=$((start + ${#msg} + 4)) + + echo >&2 + echo >&2 "${chartcolor}${l1}${TPUT_RESET}" + echo >&2 "${chartcolor}${l2:0:start}${sp:0:2}${TPUT_RESET}${TPUT_BOLD}${TPUT_GREEN}${netdata}${TPUT_RESET}${chartcolor}${sp:0:$((end - start - 2 - ${#netdata}))}${l2:end:$((${#l2} - end))}${TPUT_RESET}" + echo >&2 "${chartcolor}${l3:0:start}${sp:0:2}${TPUT_RESET}${TPUT_BOLD}${TPUT_CYAN}${msg}${TPUT_RESET}${chartcolor}${sp:0:2}${l3:end:$((${#l2} - end))}${TPUT_RESET}" + echo >&2 "${chartcolor}${l4}${TPUT_RESET}" + echo >&2 +} + +# ----------------------------------------------------------------------------- +# portable service command + +service_cmd="$(command -v service 2> /dev/null)" +rcservice_cmd="$(command -v rc-service 2> /dev/null)" +systemctl_cmd="$(command -v systemctl 2> /dev/null)" +service() { + + local cmd="${1}" action="${2}" + + if [ -n "${systemctl_cmd}" ]; then + run "${systemctl_cmd}" "${action}" "${cmd}" + return $? + elif [ -n "${service_cmd}" ]; then + run "${service_cmd}" "${cmd}" "${action}" + return $? + elif [ -n "${rcservice_cmd}" ]; then + run "${rcservice_cmd}" "${cmd}" "${action}" + return $? + fi + return 1 +} + +# ----------------------------------------------------------------------------- +# portable pidof + +safe_pidof() { + local pidof_cmd + pidof_cmd="$(command -v pidof 2> /dev/null)" + if [ -n "${pidof_cmd}" ]; then + ${pidof_cmd} "${@}" + return $? + else + ps -acxo pid,comm | + sed "s/^ *//g" | + grep netdata | + cut -d ' ' -f 1 + return $? + fi +} + +# ----------------------------------------------------------------------------- +find_processors() { + # Most UNIX systems have `nproc` as part of their userland (including macOS, Linux and BSD) + if command -v nproc > /dev/null; then + nproc && return + fi + + local cpus + if [ -f "/proc/cpuinfo" ]; then + # linux + cpus=$(grep -c ^processor /proc/cpuinfo) + else + # freebsd + cpus=$(sysctl hw.ncpu 2> /dev/null | grep ^hw.ncpu | cut -d ' ' -f 2) + fi + if [ -z "${cpus}" ] || [ $((cpus)) -lt 1 ]; then + echo 1 + else + echo "${cpus}" + fi +} + +# ----------------------------------------------------------------------------- +fatal() { + printf >&2 "%s ABORTED %s %s \n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}" "${*}" + exit 1 +} + +run_ok() { + printf >&2 "%s OK %s %s \n\n" "${TPUT_BGGREEN}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}" "${*}" +} + +run_failed() { + printf >&2 "%s FAILED %s %s \n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}" "${*}" +} + +ESCAPED_PRINT_METHOD= +if printf "%q " test > /dev/null 2>&1; then + ESCAPED_PRINT_METHOD="printfq" +fi +escaped_print() { + if [ "${ESCAPED_PRINT_METHOD}" = "printfq" ]; then + printf "%q " "${@}" + else + printf "%s" "${*}" + fi + return 0 +} + +run_logfile="/dev/null" +run() { + local user="${USER--}" dir="${PWD}" info info_console + + if [ "${UID}" = "0" ]; then + info="[root ${dir}]# " + info_console="[${TPUT_DIM}${dir}${TPUT_RESET}]# " + else + info="[${user} ${dir}]$ " + info_console="[${TPUT_DIM}${dir}${TPUT_RESET}]$ " + fi + + { + printf "%s" "${info}" + escaped_print "${@}" + printf "%s" " ... " + } >> "${run_logfile}" + + printf >&2 "%s" "${info_console}${TPUT_BOLD}${TPUT_YELLOW}" + escaped_print >&2 "${@}" + printf >&2 "%s\n" "${TPUT_RESET}" + + "${@}" + + local ret=$? + if [ ${ret} -ne 0 ]; then + run_failed + printf >> "${run_logfile}" "FAILED with exit code %s\n" "${ret}" + else + run_ok + printf >> "${run_logfile}" "OK\n" + fi + + return ${ret} +} + +iscontainer() { + # man systemd-detect-virt + local cmd + cmd=$(command -v systemd-detect-virt 2> /dev/null) + if [ -n "${cmd}" ] && [ -x "${cmd}" ]; then + "${cmd}" --container > /dev/null 2>&1 && return 0 + fi + + # /proc/1/sched exposes the host's pid of our init ! + # http://stackoverflow.com/a/37016302 + local pid + pid=$(head -n 1 /proc/1/sched 2> /dev/null | { + # shellcheck disable=SC2034 + IFS='(),#:' read -r name pid th threads + echo "$pid" + }) + if [ -n "${pid}" ]; then + pid=$((pid + 0)) + [ ${pid} -gt 1 ] && return 0 + fi + + # lxc sets environment variable 'container' + # shellcheck disable=SC2154 + [ -n "${container}" ] && return 0 + + # docker creates /.dockerenv + # http://stackoverflow.com/a/25518345 + [ -f "/.dockerenv" ] && return 0 + + # ubuntu and debian supply /bin/running-in-container + # https://www.apt-browse.org/browse/ubuntu/trusty/main/i386/upstart/1.12.1-0ubuntu4/file/bin/running-in-container + if [ -x "/bin/running-in-container" ]; then + "/bin/running-in-container" > /dev/null 2>&1 && return 0 + fi + + return 1 +} + +get_os_key() { + if [ -f /etc/os-release ]; then + # shellcheck disable=SC1091 + source /etc/os-release || return 1 + echo "${ID}-${VERSION_ID}" + + elif [ -f /etc/redhat-release ]; then + echo "$(< /etc/redhat-release)" + else + echo "unknown" + fi +} + +issystemd() { + local pids p myns ns systemctl + + # if the directory /lib/systemd/system OR /usr/lib/systemd/system (SLES 12.x) does not exit, it is not systemd + if [ ! -d /lib/systemd/system ] && [ ! -d /usr/lib/systemd/system ]; then + return 1 + fi + + # if there is no systemctl command, it is not systemd + systemctl=$(command -v systemctl 2> /dev/null) + if [ -z "${systemctl}" ] || [ ! -x "${systemctl}" ]; then + return 1 + fi + + # if pid 1 is systemd, it is systemd + [ "$(basename "$(readlink /proc/1/exe)" 2> /dev/null)" = "systemd" ] && return 0 + + # if systemd is not running, it is not systemd + pids=$(safe_pidof systemd 2> /dev/null) + [ -z "${pids}" ] && return 1 + + # check if the running systemd processes are not in our namespace + myns="$(readlink /proc/self/ns/pid 2> /dev/null)" + for p in ${pids}; do + ns="$(readlink "/proc/${p}/ns/pid" 2> /dev/null)" + + # if pid of systemd is in our namespace, it is systemd + [ -n "${myns}" ] && [ "${myns}" = "${ns}" ] && return 0 + done + + # else, it is not systemd + return 1 +} + +get_systemd_service_dir() { + local SYSTEMD_DIRECTORY="" + local key + key="$(get_os_key)" + + if [ -w "/lib/systemd/system" ]; then + SYSTEMD_DIRECTORY="/lib/systemd/system" + elif [ -w "/usr/lib/systemd/system" ]; then + SYSTEMD_DIRECTORY="/usr/lib/systemd/system" + elif [ -w "/etc/systemd/system" ]; then + SYSTEMD_DIRECTORY="/etc/systemd/system" + fi + + if [[ ${key} =~ ^devuan* ]] || [ "${key}" = "debian-7" ] || [ "${key}" = "ubuntu-12.04" ] || [ "${key}" = "ubuntu-14.04" ]; then + SYSTEMD_DIRECTORY="/etc/systemd/system" + fi + + echo "${SYSTEMD_DIRECTORY}" +} + +install_non_systemd_init() { + [ "${UID}" != 0 ] && return 1 + + local key + key="$(get_os_key)" + + if [ -d /etc/init.d ] && [ ! -f /etc/init.d/netdata ]; then + if [[ ${key} =~ ^(gentoo|alpine).* ]]; then + echo >&2 "Installing OpenRC init file..." + run cp system/netdata-openrc /etc/init.d/netdata && + run chmod 755 /etc/init.d/netdata && + run rc-update add netdata default && + return 0 + + elif [[ ${key} =~ ^devuan* ]] || [ "${key}" = "debian-7" ] || [ "${key}" = "ubuntu-12.04" ] || [ "${key}" = "ubuntu-14.04" ]; then + echo >&2 "Installing LSB init file..." + run cp system/netdata-lsb /etc/init.d/netdata && + run chmod 755 /etc/init.d/netdata && + run update-rc.d netdata defaults && + run update-rc.d netdata enable && + return 0 + elif [[ ${key} =~ ^(amzn-201[5678]|ol|CentOS release 6|Red Hat Enterprise Linux Server release 6|Scientific Linux CERN SLC release 6|CloudLinux Server release 6).* ]]; then + echo >&2 "Installing init.d file..." + run cp system/netdata-init-d /etc/init.d/netdata && + run chmod 755 /etc/init.d/netdata && + run chkconfig netdata on && + return 0 + else + echo >&2 "I don't know what init file to install on system '${key}'. Open a github issue to help us fix it." + return 1 + fi + elif [ -f /etc/init.d/netdata ]; then + echo >&2 "file '/etc/init.d/netdata' already exists." + return 0 + else + echo >&2 "I don't know what init file to install on system '${key}'. Open a github issue to help us fix it." + fi + + return 1 +} + +# This is used by netdata-installer.sh +# shellcheck disable=SC2034 +NETDATA_STOP_CMD="netdatacli shutdown-agent" + +NETDATA_START_CMD="netdata" +NETDATA_INSTALLER_START_CMD="" + +install_netdata_service() { + local uname + uname="$(uname 2> /dev/null)" + + if [ "${UID}" -eq 0 ]; then + if [ "${uname}" = "Darwin" ]; then + + if [ -f "/Library/LaunchDaemons/com.github.netdata.plist" ]; then + echo >&2 "file '/Library/LaunchDaemons/com.github.netdata.plist' already exists." + return 0 + else + echo >&2 "Installing MacOS X plist file..." + # This is used by netdata-installer.sh + # shellcheck disable=SC2034 + run cp system/netdata.plist /Library/LaunchDaemons/com.github.netdata.plist && + run launchctl load /Library/LaunchDaemons/com.github.netdata.plist && + NETDATA_START_CMD="launchctl start com.github.netdata" && + NETDATA_STOP_CMD="launchctl stop com.github.netdata" + return 0 + fi + + elif [ "${uname}" = "FreeBSD" ]; then + # This is used by netdata-installer.sh + # shellcheck disable=SC2034 + run cp system/netdata-freebsd /etc/rc.d/netdata && NETDATA_START_CMD="service netdata start" && + NETDATA_STOP_CMD="service netdata stop" && + NETDATA_INSTALLER_START_CMD="service netdata onestart" && + myret=$? + + echo >&2 "Note: To explicitly enable netdata automatic start, set 'netdata_enable' to 'YES' in /etc/rc.conf" + echo >&2 "" + + return ${myret} + + elif issystemd; then + # systemd is running on this system + NETDATA_START_CMD="systemctl start netdata" + # This is used by netdata-installer.sh + # shellcheck disable=SC2034 + NETDATA_STOP_CMD="systemctl stop netdata" + NETDATA_INSTALLER_START_CMD="${NETDATA_START_CMD}" + + SYSTEMD_DIRECTORY="$(get_systemd_service_dir)" + + if [ "${SYSTEMD_DIRECTORY}x" != "x" ]; then + ENABLE_NETDATA_IF_PREVIOUSLY_ENABLED="run systemctl enable netdata" + IS_NETDATA_ENABLED="$(systemctl is-enabled netdata 2> /dev/null || echo "Netdata not there")" + if [ "${IS_NETDATA_ENABLED}" == "disabled" ]; then + echo >&2 "Netdata was there and disabled, make sure we don't re-enable it ourselves" + ENABLE_NETDATA_IF_PREVIOUSLY_ENABLED="true" + fi + + echo >&2 "Installing systemd service..." + run cp system/netdata.service "${SYSTEMD_DIRECTORY}/netdata.service" && + run systemctl daemon-reload && + ${ENABLE_NETDATA_IF_PREVIOUSLY_ENABLED} && + return 0 + else + echo >&2 "no systemd directory; cannot install netdata.service" + fi + else + install_non_systemd_init + local ret=$? + + if [ ${ret} -eq 0 ]; then + if [ -n "${service_cmd}" ]; then + NETDATA_START_CMD="service netdata start" + # This is used by netdata-installer.sh + # shellcheck disable=SC2034 + NETDATA_STOP_CMD="service netdata stop" + elif [ -n "${rcservice_cmd}" ]; then + NETDATA_START_CMD="rc-service netdata start" + # This is used by netdata-installer.sh + # shellcheck disable=SC2034 + NETDATA_STOP_CMD="rc-service netdata stop" + fi + NETDATA_INSTALLER_START_CMD="${NETDATA_START_CMD}" + fi + + return ${ret} + fi + fi + + return 1 +} + +# ----------------------------------------------------------------------------- +# stop netdata + +pidisnetdata() { + if [ -d /proc/self ]; then + if [ -z "$1" ] || [ ! -f "/proc/$1/stat" ]; then + return 1 + fi + [ "$(cut -d '(' -f 2 "/proc/$1/stat" | cut -d ')' -f 1)" = "netdata" ] && return 0 + return 1 + fi + return 0 +} + +stop_netdata_on_pid() { + local pid="${1}" ret=0 count=0 + + pidisnetdata "${pid}" || return 0 + + printf >&2 "Stopping netdata on pid %s ..." "${pid}" + while [ -n "$pid" ] && [ ${ret} -eq 0 ]; do + if [ ${count} -gt 24 ]; then + echo >&2 "Cannot stop the running netdata on pid ${pid}." + return 1 + fi + + count=$((count + 1)) + + pidisnetdata "${pid}" || ret=1 + if [ ${ret} -eq 1 ]; then + break + fi + + if [ ${count} -lt 12 ]; then + run kill "${pid}" 2> /dev/null + ret=$? + else + run kill -9 "${pid}" 2> /dev/null + ret=$? + fi + + test ${ret} -eq 0 && printf >&2 "." && sleep 5 + + done + + echo >&2 + if [ ${ret} -eq 0 ]; then + echo >&2 "SORRY! CANNOT STOP netdata ON PID ${pid} !" + return 1 + fi + + echo >&2 "netdata on pid ${pid} stopped." + return 0 +} + +netdata_pids() { + local p myns ns + + myns="$(readlink /proc/self/ns/pid 2> /dev/null)" + + for p in \ + $(cat /var/run/netdata.pid 2> /dev/null) \ + $(cat /var/run/netdata/netdata.pid 2> /dev/null) \ + $(safe_pidof netdata 2> /dev/null); do + ns="$(readlink "/proc/${p}/ns/pid" 2> /dev/null)" + + if [ -z "${myns}" ] || [ -z "${ns}" ] || [ "${myns}" = "${ns}" ]; then + pidisnetdata "${p}" && echo "${p}" + fi + done +} + +stop_all_netdata() { + local p uname + + if [ "${UID}" -eq 0 ]; then + uname="$(uname 2> /dev/null)" + + # Any of these may fail, but we need to not bail if they do. + if issystemd; then + if systemctl stop netdata; then + sleep 5 + fi + elif [ "${uname}" = "Darwin" ]; then + if launchctl stop netdata; then + sleep 5 + fi + elif [ "${uname}" = "FreeBSD" ]; then + if /etc/rc.d/netdata stop; then + sleep 5 + fi + else + if service netdata stop; then + sleep 5 + fi + fi + fi + + if [ -n "$(netdata_pids)" ] && [ -n "$(builtin type -P netdatacli)" ]; then + netdatacli shutdown-agent + sleep 20 + fi + + for p in $(netdata_pids); do + # shellcheck disable=SC2086 + stop_netdata_on_pid ${p} + done +} + +# ----------------------------------------------------------------------------- +# restart netdata + +restart_netdata() { + local netdata="${1}" + shift + + local started=0 + + progress "Restarting netdata instance" + + if [ -z "${NETDATA_INSTALLER_START_CMD}" ]; then + NETDATA_INSTALLER_START_CMD="${netdata}" + fi + + if [ "${UID}" -eq 0 ]; then + echo >&2 + echo >&2 "Stopping all netdata threads" + run stop_all_netdata + + echo >&2 "Starting netdata using command '${NETDATA_INSTALLER_START_CMD}'" + # shellcheck disable=SC2086 + run ${NETDATA_INSTALLER_START_CMD} && started=1 + + if [ ${started} -eq 1 ] && [ -z "$(netdata_pids)" ]; then + echo >&2 "Ooops! it seems netdata is not started." + started=0 + fi + + if [ ${started} -eq 0 ]; then + echo >&2 "Attempting another netdata start using command '${NETDATA_INSTALLER_START_CMD}'" + # shellcheck disable=SC2086 + run ${NETDATA_INSTALLER_START_CMD} && started=1 + fi + fi + + if [ ${started} -eq 1 ] && [ -z "$(netdata_pids)" ]; then + echo >&2 "Hm... it seems netdata is still not started." + started=0 + fi + + if [ ${started} -eq 0 ]; then + # still not started... another forced attempt, just run the binary + echo >&2 "Netdata service still not started, attempting another forced restart by running '${netdata} ${*}'" + run stop_all_netdata + run "${netdata}" "${@}" + return $? + fi + + return 0 +} + +# ----------------------------------------------------------------------------- +# install netdata logrotate + +install_netdata_logrotate() { + if [ "${UID}" -eq 0 ]; then + if [ -d /etc/logrotate.d ]; then + if [ ! -f /etc/logrotate.d/netdata ]; then + run cp system/netdata.logrotate /etc/logrotate.d/netdata + fi + + if [ -f /etc/logrotate.d/netdata ]; then + run chmod 644 /etc/logrotate.d/netdata + fi + + return 0 + fi + fi + + return 1 +} + +# ----------------------------------------------------------------------------- +# create netdata.conf + +create_netdata_conf() { + local path="${1}" url="${2}" + + if [ -s "${path}" ]; then + return 0 + fi + + if [ -n "$url" ]; then + echo >&2 "Downloading default configuration from netdata..." + sleep 5 + + # remove a possibly obsolete configuration file + [ -f "${path}.new" ] && rm "${path}.new" + + # disable a proxy to get data from the local netdata + export http_proxy= + export https_proxy= + + if command -v curl 1> /dev/null 2>&1; then + run curl -sSL --connect-timeout 10 --retry 3 "${url}" > "${path}.new" + elif command -v wget 1> /dev/null 2>&1; then + run wget -T 15 -O - "${url}" > "${path}.new" + fi + + if [ -s "${path}.new" ]; then + run mv "${path}.new" "${path}" + run_ok "New configuration saved for you to edit at ${path}" + else + [ -f "${path}.new" ] && rm "${path}.new" + run_failed "Cannnot download configuration from netdata daemon using url '${url}'" + url='' + fi + fi + + if [ -z "$url" ]; then + echo "# netdata can generate its own config which is available at 'http://<netdata_ip>/netdata.conf'" > "${path}" + echo "# You can download it with command like: 'wget -O ${path} http://localhost:19999/netdata.conf'" >> "${path}" + fi + +} + +portable_add_user() { + local username="${1}" homedir="${2}" + + [ -z "${homedir}" ] && homedir="/tmp" + + # Check if user exists + if cut -d ':' -f 1 < /etc/passwd | grep "^${username}$" 1> /dev/null 2>&1; then + echo >&2 "User '${username}' already exists." + return 0 + fi + + echo >&2 "Adding ${username} user account with home ${homedir} ..." + + local nologin + nologin="$(command -v nologin || echo '/bin/false')" + + # Linux + if command -v useradd 1> /dev/null 2>&1; then + run useradd -r -g "${username}" -c "${username}" -s "${nologin}" --no-create-home -d "${homedir}" "${username}" && return 0 + fi + + # FreeBSD + if command -v pw 1> /dev/null 2>&1; then + run pw useradd "${username}" -d "${homedir}" -g "${username}" -s "${nologin}" && return 0 + fi + + # BusyBox + if command -v adduser 1> /dev/null 2>&1; then + run adduser -h "${homedir}" -s "${nologin}" -D -G "${username}" "${username}" && return 0 + fi + + # mac OS + if command -v sysadminctl 1> /dev/null 2>&1; then + run sysadminctl -addUser "${username}" && return 0 + fi + + echo >&2 "Failed to add ${username} user account !" + + return 1 +} + +portable_add_group() { + local groupname="${1}" + + # Check if group exist + if cut -d ':' -f 1 < /etc/group | grep "^${groupname}$" 1> /dev/null 2>&1; then + echo >&2 "Group '${groupname}' already exists." + return 0 + fi + + echo >&2 "Adding ${groupname} user group ..." + + # Linux + if command -v groupadd 1> /dev/null 2>&1; then + run groupadd -r "${groupname}" && return 0 + fi + + # FreeBSD + if command -v pw 1> /dev/null 2>&1; then + run pw groupadd "${groupname}" && return 0 + fi + + # BusyBox + if command -v addgroup 1> /dev/null 2>&1; then + run addgroup "${groupname}" && return 0 + fi + + # mac OS + if command -v dseditgroup 1> /dev/null 2>&1; then + dseditgroup -o create "${groupname}" && return 0 + fi + + echo >&2 "Failed to add ${groupname} user group !" + return 1 +} + +portable_add_user_to_group() { + local groupname="${1}" username="${2}" + + # Check if group exist + if ! cut -d ':' -f 1 < /etc/group | grep "^${groupname}$" > /dev/null 2>&1; then + echo >&2 "Group '${groupname}' does not exist." + return 1 + fi + + # Check if user is in group + if [[ ",$(grep "^${groupname}:" < /etc/group | cut -d ':' -f 4)," =~ ,${username}, ]]; then + # username is already there + echo >&2 "User '${username}' is already in group '${groupname}'." + return 0 + else + # username is not in group + echo >&2 "Adding ${username} user to the ${groupname} group ..." + + # Linux + if command -v usermod 1> /dev/null 2>&1; then + run usermod -a -G "${groupname}" "${username}" && return 0 + fi + + # FreeBSD + if command -v pw 1> /dev/null 2>&1; then + run pw groupmod "${groupname}" -m "${username}" && return 0 + fi + + # BusyBox + if command -v addgroup 1> /dev/null 2>&1; then + run addgroup "${username}" "${groupname}" && return 0 + fi + + # mac OS + if command -v dseditgroup 1> /dev/null 2>&1; then + dseditgroup -u "${username}" "${groupname}" && return 0 + fi + echo >&2 "Failed to add user ${username} to group ${groupname} !" + return 1 + fi +} + +safe_sha256sum() { + # Within the contexct of the installer, we only use -c option that is common between the two commands + # We will have to reconsider if we start non-common options + if command -v sha256sum > /dev/null 2>&1; then + sha256sum "$@" + elif command -v shasum > /dev/null 2>&1; then + shasum -a 256 "$@" + else + fatal "I could not find a suitable checksum binary to use" + fi +} + +_get_scheduler_type() { + if _get_intervaldir > /dev/null ; then + echo 'interval' + elif issystemd ; then + echo 'systemd' + elif [ -d /etc/cron.d ] ; then + echo 'crontab' + else + echo 'none' + fi +} + +_get_intervaldir() { + if [ -d /etc/cron.daily ]; then + echo /etc/cron.daily + elif [ -d /etc/periodic/daily ]; then + echo /etc/periodic/daily + else + return 1 + fi + + return 0 +} + +install_netdata_updater() { + if [ "${INSTALLER_DIR}" ] && [ -f "${INSTALLER_DIR}/packaging/installer/netdata-updater.sh" ]; then + cat "${INSTALLER_DIR}/packaging/installer/netdata-updater.sh" > "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" || return 1 + fi + + if [ "${NETDATA_SOURCE_DIR}" ] && [ -f "${NETDATA_SOURCE_DIR}/packaging/installer/netdata-updater.sh" ]; then + cat "${NETDATA_SOURCE_DIR}/packaging/installer/netdata-updater.sh" > "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" || return 1 + fi + + if issystemd && [ -n "$(get_systemd_service_dir)" ]; then + cat "${NETDATA_SOURCE_DIR}/system/netdata-updater.timer" > "$(get_systemd_service_dir)/netdata-updater.timer" + cat "${NETDATA_SOURCE_DIR}/system/netdata-updater.service" > "$(get_systemd_service_dir)/netdata-updater.service" + fi + + sed -i -e "s|THIS_SHOULD_BE_REPLACED_BY_INSTALLER_SCRIPT|${NETDATA_USER_CONFIG_DIR}/.environment|" "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" || return 1 + + chmod 0755 "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" + echo >&2 "Update script is located at ${TPUT_GREEN}${TPUT_BOLD}${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh${TPUT_RESET}" + echo >&2 + + return 0 +} + +cleanup_old_netdata_updater() { + if [ -f "${NETDATA_PREFIX}"/usr/libexec/netdata-updater.sh ]; then + echo >&2 "Removing updater from deprecated location" + rm -f "${NETDATA_PREFIX}"/usr/libexec/netdata-updater.sh + fi + + if issystemd && [ -n "$(get_systemd_service_dir)" ] ; then + systemctl disable netdata-updater.timer + rm -f "$(get_systemd_service_dir)/netdata-updater.timer" + rm -f "$(get_systemd_service_dir)/netdata-updater.service" + fi + + if [ -d /etc/cron.daily ]; then + rm -f /etc/cron.daily/netdata-updater.sh + rm -f /etc/cron.daily/netdata-updater + fi + + if [ -d /etc/periodic/daily ]; then + rm -f /etc/periodic/daily/netdata-updater.sh + rm -f /etc/periodic/daily/netdata-updater + fi + + if [ -d /etc/cron.d ]; then + rm -f /etc/cron.d/netdata-updater + fi + + return 0 +} + +enable_netdata_updater() { + local updater_type + + if [ -n "${1}" ] ; then + updater_type="${1}" + else + updater_type="$(_get_scheduler_type)" + fi + + case "${updater_type}" in + "systemd") + systemctl enable netdata-updater.timer + + echo >&2 "Auto-updating has been enabled using a systemd timer unit." + echo >&2 + echo >&2 "If the update process fails, the failure will be logged to the systemd journal just like a regular service failure." + echo >&2 "Successful updates should produce empty logs." + echo >&2 + ;; + "interval") + ln -sf "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" "$(_get_intervaldir)/netdata-updater" + + echo >&2 "Auto-updating has been enabled through cron, updater script linked to ${TPUT_RED}${TPUT_BOLD}$(_get_intervaldir)/netdata-updater${TPUT_RESET}" + echo >&2 + echo >&2 "If the update process fails and you have email notifications set up correctly for cron on this system, you should receive an email notification of the failure." + echo >&2 "Successful updates will not send an email." + echo >&2 + ;; + "crontab") + cat "${NETDATA_SOURCE_DIR}/system/netdata.crontab" > "/etc/cron.d/netdata-updater" + + echo >&2 "Auto-updating has been enabled through cron, using a crontab at ${TPUT_RED}${TPUT_BOLD}/etc/cron.d/netdata-updater${TPUT_RESET}" + echo >&2 + echo >&2 "If the update process fails and you have email notifications set up correctly for cron on this system, you should receive an email notification of the failure." + echo >&2 "Successful updates will not send an email." + echo >&2 + ;; + *) + echo >&2 "Unable to determine what type of auto-update scheduling to use, not enabling auto-updates." + echo >&2 + return 1 + esac + + return 0 +} + +disable_netdata_updater() { + echo >&2 "You chose *NOT* to enable auto-update, removing any links to the updater from cron (it may have happened if you are reinstalling)" + echo >&2 + + if issystemd && [ -n "$(get_systemd_service_dir)" ] ; then + systemctl disable netdata-updater.timer + fi + + if [ -d /etc/cron.daily ]; then + rm -f /etc/cron.daily/netdata-updater.sh + rm -f /etc/cron.daily/netdata-updater + fi + + if [ -d /etc/periodic/daily ]; then + rm -f /etc/periodic/daily/netdata-updater.sh + rm -f /etc/periodic/daily/netdata-updater + fi + + if [ -d /etc/cron.d ]; then + rm -f /etc/cron.d/netdata-updater + fi + + return 0 +} + +set_netdata_updater_channel() { + sed -i -e "s/^RELEASE_CHANNEL=.*/RELEASE_CHANNEL=\"${RELEASE_CHANNEL}\"/" "${NETDATA_USER_CONFIG_DIR}/.environment" +} |