mirror of
https://github.com/librenms/docker.git
synced 2026-01-23 18:25:09 +00:00
287 lines
8.6 KiB
Bash
287 lines
8.6 KiB
Bash
#!/bin/bash
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function runas_librenms() {
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su - librenms -s /bin/sh -c "$1"
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}
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TZ=${TZ:-"UTC"}
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PUID=${PUID:-1000}
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PGID=${PGID:-1000}
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MEMORY_LIMIT=${MEMORY_LIMIT:-"256M"}
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UPLOAD_MAX_SIZE=${UPLOAD_MAX_SIZE:-"16M"}
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OPCACHE_MEM_SIZE=${OPCACHE_MEM_SIZE:-"128"}
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MEMCACHED_PORT=${MEMCACHED_PORT:-"11211"}
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RRDCACHED_PORT=${RRDCACHED_PORT:-"42217"}
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LIBRENMS_POLLER_THREADS=${LIBRENMS_POLLER_THREADS:-"16"}
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LIBRENMS_POLLER_INTERVAL=${LIBRENMS_POLLER_INTERVAL:-"5"}
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LIBRENMS_DISTRIBUTED_POLLER_ENABLE=${LIBRENMS_DISTRIBUTED_POLLER_ENABLE:-false}
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LIBRENMS_DISTRIBUTED_POLLER_NAME=${LIBRENMS_DISTRIBUTED_POLLER_NAME:-$(hostname -f)}
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LIBRENMS_DISTRIBUTED_POLLER_GROUP=${LIBRENMS_DISTRIBUTED_POLLER_GROUP:-'0'}
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LIBRENMS_DISTRIBUTED_POLLER_MEMCACHED_HOST=${LIBRENMS_DISTRIBUTED_POLLER_MEMCACHED_HOST:-"${MEMCACHED_HOST}"}
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LIBRENMS_DISTRIBUTED_POLLER_MEMCACHED_PORT=${LIBRENMS_DISTRIBUTED_POLLER_MEMCACHED_PORT:-"${MEMCACHED_PORT}"}
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LIBRENMS_CRON_DISCOVERY_ENABLE=${LIBRENMS_CRON_DISCOVERY_ENABLE:-true}
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LIBRENMS_CRON_DAILY_ENABLE=${LIBRENMS_CRON_DAILY_ENABLE:-true}
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LIBRENMS_CRON_ALERTS_ENABLE=${LIBRENMS_CRON_ALERTS_ENABLE:-true}
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LIBRENMS_CRON_BILLING_ENABLE=${LIBRENMS_CRON_BILLING_ENABLE:-true}
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LIBRENMS_CRON_BILLING_CALCULATE_ENABLE=${LIBRENMS_CRON_BILLING_CALCULATE_ENABLE:-true}
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LIBRENMS_CRON_CHECK_SERVICES_ENABLE=${LIBRENMS_CRON_CHECK_SERVICES_ENABLE:-true}
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LIBRENMS_CRON_POLLER_ENABLE=${LIBRENMS_CRON_POLLER_ENABLE:-true}
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DB_PORT=${DB_PORT:-"3306"}
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DB_NAME=${DB_NAME:-"librenms"}
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DB_USER=${DB_USER:-"librenms"}
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DB_TIMEOUT=${DB_TIMEOUT:-"30"}
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# From https://github.com/docker-library/mariadb/blob/master/docker-entrypoint.sh#L21-L41
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# usage: file_env VAR [DEFAULT]
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# ie: file_env 'XYZ_DB_PASSWORD' 'example'
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# (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
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# "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
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file_env() {
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local var="$1"
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local fileVar="${var}_FILE"
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local def="${2:-}"
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if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
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echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
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exit 1
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fi
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local val="$def"
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if [ "${!var:-}" ]; then
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val="${!var}"
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elif [ "${!fileVar:-}" ]; then
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val="$(< "${!fileVar}")"
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fi
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export "$var"="$val"
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unset "$fileVar"
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}
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# Timezone
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echo "Setting timezone to ${TZ}..."
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ln -snf /usr/share/zoneinfo/${TZ} /etc/localtime
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echo ${TZ} > /etc/timezone
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sed -i -e "s|date\.timezone.*|date\.timezone = ${TZ}|" /etc/php7/php.ini \
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# Change librenms UID / GID
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echo "Checking if librenms UID / GID has changed..."
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if [ $(id -u librenms) != ${PUID} ]; then
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usermod -u ${PUID} librenms
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fi
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if [ $(id -g librenms) != ${PGID} ]; then
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groupmod -g ${PGID} librenms
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fi
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# PHP
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echo "Setting PHP-FPM configuration..."
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sed -e "s/@MEMORY_LIMIT@/$MEMORY_LIMIT/g" \
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-e "s/@UPLOAD_MAX_SIZE@/$UPLOAD_MAX_SIZE/g" \
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/tpls/etc/php7/php-fpm.d/www.conf > /etc/php7/php-fpm.d/www.conf
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# OpCache
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echo "Setting OpCache configuration..."
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sed -e "s/@OPCACHE_MEM_SIZE@/$OPCACHE_MEM_SIZE/g" \
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/tpls/etc/php7/conf.d/opcache.ini > /etc/php7/conf.d/opcache.ini
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# Nginx
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echo "Setting Nginx configuration..."
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sed -e "s/@UPLOAD_MAX_SIZE@/$UPLOAD_MAX_SIZE/g" \
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/tpls/etc/nginx/nginx.conf > /etc/nginx/nginx.conf
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# SNMP
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echo "Updating SNMP community..."
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file_env 'LIBRENMS_SNMP_COMMUNITY' 'librenmsdocker'
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sed -i -e "s/RANDOMSTRINGGOESHERE/${LIBRENMS_SNMP_COMMUNITY}/" /etc/snmp/snmpd.conf
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# Init files and folders
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echo "Initializing LibreNMS files / folders..."
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mkdir -p ${DATA_PATH}/config \
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${DATA_PATH}/logs \
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${DATA_PATH}/rrd
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rm -f ${LIBRENMS_PATH}/config.d/*
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echo "Setting LibreNMS configuration..."
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# Config : Directories
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cat > ${LIBRENMS_PATH}/config.d/directories.php <<EOL
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<?php
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\$config['install_dir'] = '${LIBRENMS_PATH}';
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\$config['log_dir'] = '${DATA_PATH}/logs';
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\$config['rrd_dir'] = '${DATA_PATH}/rrd';
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EOL
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# Config : Database
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if [ -z "$DB_HOST" ]; then
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>&2 echo "ERROR: DB_HOST must be defined"
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exit 1
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fi
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file_env 'DB_PASSWORD'
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if [ -z "$DB_PASSWORD" ]; then
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>&2 echo "ERROR: Either DB_PASSWORD or DB_PASSWORD_FILE must be defined"
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exit 1
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fi
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cat > ${LIBRENMS_PATH}/config.d/database.php <<EOL
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<?php
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\$config['db_host'] = '${DB_HOST}';
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\$config['db_port'] = ${DB_PORT};
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\$config['db_user'] = '${DB_USER}';
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\$config['db_pass'] = '${DB_PASSWORD}';
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\$config['db_name'] = '${DB_NAME}';
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EOL
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dbcmd="mysql -h ${DB_HOST} -P ${DB_PORT} -u "${DB_USER}" "-p${DB_PASSWORD}""
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unset DB_PASSWORD
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# Config : User
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cat > ${LIBRENMS_PATH}/config.d/user.php <<EOL
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<?php
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\$config['user'] = "librenms";
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EOL
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# Config : Fping
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echo "/usr/sbin/fping -6 \$@" > /usr/sbin/fping6
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chmod +x /usr/sbin/fping6
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cat > ${LIBRENMS_PATH}/config.d/fping.php <<EOL
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<?php
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\$config['fping'] = "/usr/sbin/fping";
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\$config['fping6'] = "/usr/sbin/fping6";
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EOL
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# Config : Disable autoupdate
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cat > ${LIBRENMS_PATH}/config.d/autoupdate.php <<EOL
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<?php
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\$config['update'] = 0;
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EOL
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# Config : Memcached
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if [ ! -z "${MEMCACHED_HOST}" ]; then
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cat > ${LIBRENMS_PATH}/config.d/memcached.php <<EOL
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<?php
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\$config['memcached']['enable'] = true;
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\$config['memcached']['host'] = '$MEMCACHED_HOST';
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\$config['memcached']['port'] = $MEMCACHED_PORT;
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EOL
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fi
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# Config : RRDcached
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if [ ! -z "${RRDCACHED_HOST}" ]; then
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cat > ${LIBRENMS_PATH}/config.d/rrdcached.php <<EOL
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<?php
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\$config['rrdcached'] = "${RRDCACHED_HOST}:${RRDCACHED_PORT}";
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\$config['rrdtool_version'] = '1.7.0';
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EOL
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fi
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# Config : Ditributed poller
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if [ ! -z "${LIBRENMS_DISTRIBUTED_POLLER_MEMCACHED_HOST}" -a ! -z "${RRDCACHED_HOST}" -a $LIBRENMS_DISTRIBUTED_POLLER_ENABLE = true ]; then
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cat > ${LIBRENMS_PATH}/config.d/distributed_poller.php <<EOL
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<?php
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\$config['distributed_poller'] = true;
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\$config['distributed_poller_name'] = '$LIBRENMS_DISTRIBUTED_POLLER_NAME';
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\$config['distributed_poller_group'] = '$LIBRENMS_DISTRIBUTED_POLLER_GROUP';
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\$config['distributed_poller_memcached_host'] = '$LIBRENMS_DISTRIBUTED_POLLER_MEMCACHED_HOST';
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\$config['distributed_poller_memcached_port'] = $LIBRENMS_DISTRIBUTED_POLLER_MEMCACHED_PORT;
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EOL
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fi
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# Fix perms
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echo "Fixing permissions..."
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chown -R librenms. ${DATA_PATH} \
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${LIBRENMS_PATH}/config.d \
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${LIBRENMS_PATH}/bootstrap \
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${LIBRENMS_PATH}/storage
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chmod ug+rw ${DATA_PATH}/logs \
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${DATA_PATH}/rrd \
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${LIBRENMS_PATH}/bootstrap/cache \
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${LIBRENMS_PATH}/storage \
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${LIBRENMS_PATH}/storage/framework/*
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# Sidecar cron container ?
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if [ "$1" == "/usr/local/bin/cron" ]; then
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echo ">>"
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echo ">> Sidecar cron container detected"
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echo ">>"
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# Init
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if [ -z "$CRONTAB_PATH" ]; then
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>&2 echo "ERROR: CRONTAB_PATH must be defined"
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exit 1
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fi
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rm -rf ${CRONTAB_PATH}
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mkdir -m 0644 -p ${CRONTAB_PATH}
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touch ${CRONTAB_PATH}/librenms
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# Add crontab
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cat ${LIBRENMS_PATH}/librenms.nonroot.cron > ${CRONTAB_PATH}/librenms
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sed -i -e "s/ librenms //" ${CRONTAB_PATH}/librenms
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if [ $LIBRENMS_CRON_DISCOVERY_ENABLE != true ]; then
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sed -i "/discovery.php/d" ${CRONTAB_PATH}/librenms
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fi
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if [ $LIBRENMS_CRON_DAILY_ENABLE != true ]; then
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sed -i "/daily.sh/d" ${CRONTAB_PATH}/librenms
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fi
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if [ $LIBRENMS_CRON_ALERTS_ENABLE != true ]; then
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sed -i "/alerts.php/d" ${CRONTAB_PATH}/librenms
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fi
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if [ $LIBRENMS_CRON_BILLING_ENABLE != true ]; then
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sed -i "/poll-billing.php/d" ${CRONTAB_PATH}/librenms
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fi
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if [ $LIBRENMS_CRON_BILLING_CALCULATE_ENABLE != true ]; then
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sed -i "/billing-calculate.php/d" ${CRONTAB_PATH}/librenms
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fi
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if [ $LIBRENMS_CRON_CHECK_SERVICES_ENABLE != true ]; then
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sed -i "/check-services.php/d" ${CRONTAB_PATH}/librenms
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fi
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sed -i "/poller-wrapper.py/d" ${CRONTAB_PATH}/librenms
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if [ $LIBRENMS_CRON_POLLER_ENABLE = true ]; then
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cat >> ${CRONTAB_PATH}/librenms <<EOL
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*/${LIBRENMS_POLLER_INTERVAL} * * * * /opt/librenms/cronic /opt/librenms/poller-wrapper.py ${LIBRENMS_POLLER_THREADS}
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EOL
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fi
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# Fix crontab perms
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echo "Fixing crontab permissions..."
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chmod -R 0644 ${CRONTAB_PATH}
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elif [ "$1" == "/usr/sbin/syslog-ng" ]; then
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echo ">>"
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echo ">> Sidecar syslog-ng container detected"
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echo ">>"
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# Init
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mkdir -p ${DATA_PATH}/syslog-ng /run/syslog-ng
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chown -R librenms. ${DATA_PATH}/syslog-ng /run/syslog-ng
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else
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echo "Waiting ${DB_TIMEOUT}s for database to be ready..."
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counter=1
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while ! ${dbcmd} -e "show databases;" > /dev/null 2>&1; do
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sleep 1
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counter=`expr $counter + 1`
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if [ ${counter} -gt ${DB_TIMEOUT} ]; then
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>&2 echo "ERROR: Failed to connect to database on $DB_HOST"
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exit 1
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fi;
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done
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echo "Database ready!"
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counttables=$(echo 'SHOW TABLES' | ${dbcmd} "$DB_NAME" | wc -l)
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echo "Updating database schema..."
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runas_librenms "php build-base.php"
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if [ "${counttables}" -eq "0" ]; then
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echo "Creating admin user..."
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runas_librenms "php adduser.php librenms librenms 10 librenms@librenms.docker"
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fi
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fi
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exec "$@"
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