X-Git-Url: https://arthur.barton.de/gitweb/?a=blobdiff_plain;f=netdata-installer.sh;h=606b6c7650bc9164dd454d96c915ede12c73badb;hb=b875d75522f83aea8201779dfb6c6a68d36c179c;hp=51c558b6cfc7efdb9b7393084b90e65388257eb6;hpb=786c2a51e7ac34a2306673bbed69d51d54b0af0f;p=netdata.git diff --git a/netdata-installer.sh b/netdata-installer.sh index 51c558b6..606b6c76 100755 --- a/netdata-installer.sh +++ b/netdata-installer.sh @@ -1,9 +1,20 @@ #!/usr/bin/env bash +export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin" + +netdata_source_dir="$(pwd)" +installer_dir="$(dirname "${0}")" + +if [ "${netdata_source_dir}" != "${installer_dir}" -a "${installer_dir}" != "." ] + then + echo >&2 "Warninng: you are currently in '${netdata_source_dir}' but the installer is in '${installer_dir}'." +fi + # reload the user profile [ -f /etc/profile ] && . /etc/profile -export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin" +# make sure /etc/profile does not change our current directory +cd "${netdata_source_dir}" || exit 1 # fix PKG_CHECK_MODULES error if [ -d /usr/share/aclocal ] @@ -13,16 +24,17 @@ then fi LC_ALL=C -umask 022 +umask 002 # Be nice on production environments renice 19 $$ >/dev/null 2>/dev/null -processors=$(cat /proc/cpuinfo | grep ^processor | wc -l) +processors=$(grep ^processor /dev/null | wc -l) [ $(( processors )) -lt 1 ] && processors=1 # you can set CFLAGS before running installer -CFLAGS="${CFLAGS--O3}" +CFLAGS="${CFLAGS--O2}" +[ "z${CFLAGS}" = "z-O3" ] && CFLAGS="-O2" # keep a log of this command printf "\n# " >>netdata-installer.log @@ -57,6 +69,7 @@ banner() { echo >&2 } +setcap="$(which setcap 2>/dev/null || command -v setcap 2>/dev/null)" service="$(which service 2>/dev/null || command -v service 2>/dev/null)" systemctl="$(which systemctl 2>/dev/null || command -v systemctl 2>/dev/null)" service() { @@ -112,7 +125,7 @@ Valid are: Use this option to allow it continue without checking pkg-config. -Netdata will by default be compiled with gcc optimization -O3 +Netdata will by default be compiled with gcc optimization -O2 If you need to pass different CFLAGS, use something like this: CFLAGS="" ${ME} @@ -139,7 +152,7 @@ get_git_config_signatures() { echo >configs.signatures.tmp - for x in $(find conf.d -name \*.conf | sort) + for x in $(find conf.d -name \*.conf) do x="${x/conf.d\//}" echo "${x}" @@ -147,7 +160,7 @@ get_git_config_signatures() { do git checkout ${c} "conf.d/${x}" || continue s="$(cat "conf.d/${x}" | md5sum | cut -d ' ' -f 1)" - echo >>configs.signatures.tmp "${x}:${s}" + echo >>configs.signatures.tmp "${s}:${x}" echo " ${s}" done git checkout HEAD "conf.d/${x}" || break @@ -159,7 +172,7 @@ get_git_config_signatures() { { echo "declare -A configs_signatures=(" IFS=":" - while read file md5 + while read md5 file do echo " ['${md5}']='${file}'" done @@ -381,7 +394,7 @@ run() { printf >&2 "\n" printf >&2 ":-----------------------------------------------------------------------------\n" - printf >&2 "Running command:\n" + printf >&2 "Running command (in $(pwd)):\n" printf >&2 "\n" printf >&2 "%q " "${@}" printf >&2 "\n" @@ -547,46 +560,175 @@ do fi done -NETDATA_ADDED_TO_DOCKER=0 -if [ ${UID} -eq 0 ] +echo >&2 "Fixing permissions ..." + +check_cmd() { + which "${1}" >/dev/null 2>&1 && return 0 + command -v "${1}" >/dev/null 2>&1 && return 0 + return 1 +} + +portable_add_user() { + local username="${1}" + + getent passwd "${username}" > /dev/null 2>&1 + [ $? -eq 0 ] && return 0 + + echo >&2 "Adding ${username} user account ..." + + local nologin="$(which nologin 2>/dev/null || command -v nologin 2>/dev/null || echo '/bin/false')" + + # Linux + if check_cmd useradd then - getent group netdata > /dev/null - if [ $? -ne 0 ] + run useradd -r -g "${username}" -c "${username}" -s "${nologin}" -d / "${username}" && return 0 + fi + + # FreeBSD + if check_cmd pw + then + run pw useradd "${username}" -d / -g "${username}" -s "${nologin}" && return 0 + fi + + # BusyBox + if check_cmd adduser + then + run adduser -D -G "${username}" "${username}" && return 0 + fi + + echo >&2 "Failed to add ${username} user account !" + + return 1 +} + +portable_add_group() { + local groupname="${1}" + + getent group "${groupname}" > /dev/null 2>&1 + [ $? -eq 0 ] && return 0 + + echo >&2 "Adding ${groupname} user group ..." + + # Linux + if check_cmd groupadd + then + run groupadd -r "${groupname}" && return 0 + fi + + # FreeBSD + if check_cmd pw + then + run pw groupadd "${groupname}" && return 0 + fi + + # BusyBox + if check_cmd addgroup + then + run addgroup "${groupname}" && return 0 + fi + + echo >&2 "Failed to add ${groupname} user group !" + return 1 +} + +portable_add_user_to_group() { + local groupname="${1}" username="${2}" + + getent group "${groupname}" > /dev/null 2>&1 + [ $? -ne 0 ] && return 1 + + # find the user is already in the group + local users=$(getent group "${groupname}" | cut -d ':' -f 4) + if [[ ",${users}," =~ ,${username}, ]] then - echo >&2 "Adding netdata user group ..." - run groupadd -r netdata + # username is already there + return 0 + else + # username is not in group + echo >&2 "Adding ${username} user to the ${groupname} group ..." + + # Linux + if check_cmd usermod + then + run usermod -a -G "${groupname}" "${username}" && return 0 + fi + + # FreeBSD + if check_cmd pw + then + run pw groupmod "${groupname}" -m "${username}" && return 0 + fi + + # BusyBox + if check_cmd addgroup + then + run addgroup "${username}" "${groupname}" && return 0 + fi + + echo >&2 "Failed to add user ${username} to group ${groupname} !" + return 1 fi +} - getent passwd netdata > /dev/null - if [ $? -ne 0 ] +iscontainer() { + # man systemd-detect-virt + local cmd=$(which systemd-detect-virt 2>/dev/null || command -v systemd-detect-virt 2>/dev/null) + if [ ! -z "${cmd}" -a -x "${cmd}" ] then - echo >&2 "Adding netdata user account ..." - run useradd -r -g netdata -c netdata -s $(which nologin 2>/dev/null || command -v nologin 2>/dev/null || echo '/bin/false') -d / netdata + "${cmd}" --container >/dev/null 2>&1 && return 0 fi - getent group docker > /dev/null - if [ $? -eq 0 ] + # /proc/1/sched exposes the host's pid of our init ! + # http://stackoverflow.com/a/37016302 + local pid=$( cat /proc/1/sched | head -n 1 | { IFS='(),#:' read name pid th threads; echo $pid; } ) + local p=$(( pid + 0 )) + [ ${pid} -ne 1 ] && return 0 + + # lxc sets environment variable 'container' + [ ! -z "${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 - # find the users in the docker group - docker=$(getent group docker | cut -d ':' -f 4) - if [[ ",${docker}," =~ ,netdata, ]] - then - # netdata is already there - : - else - # netdata is not in docker group - echo >&2 "Adding netdata user to the docker group (needed to get container names) ..." - run usermod -a -G docker netdata - fi - # let the uninstall script know - NETDATA_ADDED_TO_DOCKER=1 + "/bin/running-in-container" >/dev/null 2>&1 && return 0 fi + return 1 +} + +run find ./system/ -type f -a \! -name \*.in -a \! -name Makefile\* -a \! -name \*.conf -a \! -name \*.service -a \! -name \*.logrotate -exec chmod 755 {} \; + +NETDATA_ADDED_TO_DOCKER=0 +NETDATA_ADDED_TO_NGINX=0 +NETDATA_ADDED_TO_VARNISH=0 +NETDATA_ADDED_TO_HAPROXY=0 +NETDATA_ADDED_TO_ADM=0 +if [ ${UID} -eq 0 ] + then + portable_add_group netdata + portable_add_user netdata + portable_add_user_to_group docker netdata && NETDATA_ADDED_TO_DOCKER=1 + portable_add_user_to_group nginx netdata && NETDATA_ADDED_TO_NGINX=1 + portable_add_user_to_group varnish netdata && NETDATA_ADDED_TO_VARNISH=1 + portable_add_user_to_group haproxy netdata && NETDATA_ADDED_TO_HAPROXY=1 + portable_add_user_to_group adm netdata && NETDATA_ADDED_TO_ADM=1 + if [ -d /etc/logrotate.d -a ! -f /etc/logrotate.d/netdata ] then echo >&2 "Adding netdata logrotate configuration ..." run cp system/netdata.logrotate /etc/logrotate.d/netdata fi + + if [ -f /etc/logrotate.d/netdata ] + then + echo >&2 "Fixing netdata logrotate permissions ..." + run chmod 644 /etc/logrotate.d/netdata + fi fi @@ -609,17 +751,20 @@ config_option() { echo "${value}" } -# user -defuser="netdata" -[ ! "${UID}" = "0" ] && defuser="${USER}" -NETDATA_USER="$( config_option "run as user" "${defuser}" )" +# the user netdata will run as +if [ "${UID}" = "0" ] + then + NETDATA_USER="$( config_option "run as user" "netdata" )" +else + NETDATA_USER="${USER}" +fi -NETDATA_WEB_USER="$( config_option "web files owner" "${defuser}" )" +# the owners of the web files +NETDATA_WEB_USER="$( config_option "web files owner" "${NETDATA_USER}" )" NETDATA_WEB_GROUP="$( config_option "web files group" "${NETDATA_WEB_USER}" )" # debug flags -defdebug=0 -NETDATA_DEBUG="$( config_option "debug flags" ${defdebug} )" +NETDATA_DEBUG="$( config_option "debug flags" 0 )" # port defport=19999 @@ -654,7 +799,35 @@ fi echo >&2 echo >&2 "Fixing directories (user: ${NETDATA_USER})..." -for x in "${NETDATA_WEB_DIR}" "${NETDATA_CONF_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}" "${NETDATA_LIB_DIR}" "${NETDATA_CONF_DIR}/python.d" "${NETDATA_CONF_DIR}/charts.d" "${NETDATA_CONF_DIR}/node.d" + +# --- conf dir ---- + +for x in "python.d" "charts.d" "node.d" +do + if [ ! -d "${NETDATA_CONF_DIR}/${x}" ] + then + echo >&2 "Creating directory '${NETDATA_CONF_DIR}/${x}'" + run mkdir -p "${NETDATA_CONF_DIR}/${x}" || exit 1 + fi +done +run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${NETDATA_CONF_DIR}" +run find "${NETDATA_CONF_DIR}" -type f -exec chmod 0660 {} \; +run find "${NETDATA_CONF_DIR}" -type d -exec chmod 0775 {} \; + +# --- web dir ---- + +if [ ! -d "${NETDATA_WEB_DIR}" ] + then + echo >&2 "Creating directory '${NETDATA_WEB_DIR}'" + run mkdir -p "${NETDATA_WEB_DIR}" || exit 1 +fi +run chown -R "${NETDATA_WEB_USER}:${NETDATA_WEB_GROUP}" "${NETDATA_WEB_DIR}" +run find "${NETDATA_WEB_DIR}" -type f -exec chmod 0664 {} \; +run find "${NETDATA_WEB_DIR}" -type d -exec chmod 0775 {} \; + +# --- data dirs ---- + +for x in "${NETDATA_LIB_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}" do if [ ! -d "${x}" ] then @@ -662,32 +835,62 @@ do run mkdir -p "${x}" || exit 1 fi - if [ ${UID} -eq 0 ] + run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${x}" + #run find "${x}" -type f -exec chmod 0660 {} \; + #run find "${x}" -type d -exec chmod 0770 {} \; +done + +run chmod 755 "${NETDATA_LOG_DIR}" + +# --- plugins ---- + +if [ ${UID} -eq 0 ] + then + run chown "${NETDATA_USER}:root" "${NETDATA_LOG_DIR}" + run chown -R root "${NETDATA_PREFIX}/usr/libexec/netdata" + run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \; + run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0644 {} \; + run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.plugin -exec chmod 0755 {} \; + run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.sh -exec chmod 0755 {} \; + + setcap_ret=1 + if ! iscontainer then - if [ "${x}" = "${NETDATA_WEB_DIR}" ] + if [ ! -z "${setcap}" ] then - run chown -R "${NETDATA_WEB_USER}:${NETDATA_WEB_GROUP}" "${x}" || echo >&2 "WARNING: Cannot change the ownership of the files in directory ${x} to ${NETDATA_WEB_USER}:${NETDATA_WEB_GROUP}..." - else - run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${x}" || echo >&2 "WARNING: Cannot change the ownership of the files in directory ${x} to ${NETDATA_USER}..." + run setcap cap_dac_read_search,cap_sys_ptrace+ep "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" + setcap_ret=$? fi - fi - run chmod 0755 "${x}" || echo >&2 "WARNING: Cannot change the permissions of the directory ${x} to 0755..." -done + if [ ${setcap_ret} -eq 0 ] + then + # if we managed to setcap + # but we fail to execute apps.plugin + # trigger setuid to root + "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" -v >/dev/null 2>&1 + setcap_ret=$? + fi + fi -if [ ${UID} -eq 0 ] - then - run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" - run chmod 0755 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" - run setcap cap_dac_read_search,cap_sys_ptrace+ep "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" - if [ $? -ne 0 ] + if [ ${setcap_ret} -ne 0 ] then # fix apps.plugin to be setuid to root run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" run chmod 4755 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" fi +else + run chown "${NETDATA_USER}:${NETDATA_USER}" "${NETDATA_LOG_DIR}" + run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${NETDATA_PREFIX}/usr/libexec/netdata" + run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0755 {} \; + run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \; fi +# --- fix #1292 bug --- + +[ -d "${NETDATA_PREFIX}/usr/libexec" ] && run chmod a+rX "${NETDATA_PREFIX}/usr/libexec" +[ -d "${NETDATA_PREFIX}/usr/share/netdata" ] && run chmod a+rX "${NETDATA_PREFIX}/usr/share/netdata" + + # ----------------------------------------------------------------------------- # check if we can re-start netdata @@ -702,7 +905,7 @@ if [ ${DONOTSTART} -eq 1 ] then chown "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf" fi - chmod 0664 "${NETDATA_PREFIX}/etc/netdata/netdata.conf" + chmod 0644 "${NETDATA_PREFIX}/etc/netdata/netdata.conf" fi banner "is installed now!" echo >&2 " enjoy real-time performance and health monitoring..." @@ -713,9 +916,13 @@ fi # stop a running netdata isnetdata() { - [ -z "$1" -o ! -f "/proc/$1/stat" ] && return 1 - [ "$(cat "/proc/$1/stat" | cut -d '(' -f 2 | cut -d ')' -f 1)" = "netdata" ] && return 0 - return 1 + if [ -d /proc/self ] + then + [ -z "$1" -o ! -f "/proc/$1/stat" ] && return 1 + [ "$(cat "/proc/$1/stat" | cut -d '(' -f 2 | cut -d ')' -f 1)" = "netdata" ] && return 0 + return 1 + fi + return 0 } stop_netdata_on_pid() { @@ -752,7 +959,9 @@ stop_netdata_on_pid() { } stop_all_netdata() { - local p + local p myns ns + + myns="$(readlink /proc/self/ns/pid 2>/dev/null)" echo >&2 "Stopping a (possibly) running netdata..." @@ -761,27 +970,93 @@ stop_all_netdata() { $(cat /var/run/netdata/netdata.pid 2>/dev/null) \ $(pidof netdata 2>/dev/null) do - stop_netdata_on_pid ${p} + ns="$(readlink /proc/${p}/ns/pid 2>/dev/null)" + + if [ -z "${myns}" -o -z "${ns}" -o "${myns}" = "${ns}" ] + then + stop_netdata_on_pid ${p} + fi done } # ----------------------------------------------------------------------------- -# check netdata for systemd +# check for systemd issystemd() { + local pids p myns ns systemctl + # if the directory /etc/systemd/system does not exit, it is not systemd [ ! -d /etc/systemd/system ] && return 1 + # if there is no systemctl command, it is not systemd + systemctl=$(which systemctl 2>/dev/null || command -v systemctl 2>/dev/null) + [ -z "${systemctl}" -o ! -x "${systemctl}" ] && return 1 + # if pid 1 is systemd, it is systemd [ "$(basename $(readlink /proc/1/exe) 2>/dev/null)" = "systemd" ] && return 0 - # if systemd is running, it is systemd - pidof systemd >/dev/null 2>&1 && return 0 + # if systemd is not running, it is not systemd + pids=$(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/${p}/ns/pid 2>/dev/null)" + + # if pid of systemd is in our namespace, it is systemd + [ ! -z "${myns}" && "${myns}" = "${ns}" ] && return 0 + done # else, it is not systemd return 1 } +installed_init_d=0 +install_non_systemd_init() { + [ "${UID}" != 0 ] && return 1 + + local key="unknown" + if [ -f /etc/os-release ] + then + source /etc/os-release || return 1 + key="${ID}-${VERSION_ID}" + + elif [ -f /etc/centos-release ] + then + key=$( /dev/null if [ $? -eq 0 ] then @@ -1073,6 +1356,43 @@ if [ $? -eq 0 -a "${NETDATA_ADDED_TO_DOCKER}" = "1" ] echo " gpasswd -d netdata docker" fi +getent group nginx > /dev/null +if [ $? -eq 0 -a "${NETDATA_ADDED_TO_NGINX}" = "1" ] + then + echo + echo "You may also want to remove the netdata user from the nginx group" + echo "by running:" + echo " gpasswd -d netdata nginx" +fi + +getent group varnish > /dev/null +if [ $? -eq 0 -a "${NETDATA_ADDED_TO_VARNISH}" = "1" ] + then + echo + echo "You may also want to remove the netdata user from the varnish group" + echo "by running:" + echo " gpasswd -d netdata varnish" +fi + +getent group haproxy > /dev/null +if [ $? -eq 0 -a "${NETDATA_ADDED_TO_HAPROXY}" = "1" ] + then + echo + echo "You may also want to remove the netdata user from the haproxy group" + echo "by running:" + echo " gpasswd -d netdata haproxy" +fi + +getent group adm > /dev/null +if [ $? -eq 0 -a "${NETDATA_ADDED_TO_ADM}" = "1" ] + then + echo + echo "You may also want to remove the netdata user from the adm group" + echo "by running:" + echo " gpasswd -d netdata adm" +fi + + UNINSTALL chmod 750 netdata-uninstaller.sh