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#### Why I did it Support reset factory in Sonic OS [Reset Factory HLD](sonic-net/SONiC#1231) [Sonic-mgmt tests](sonic-net/sonic-mgmt#7652) #### How I did it - Added new script "/usr/bin/reset-factory" * It generates a new config_db.json files with factory configurations * It clears system files and logs * It removes all docker containers on system except database * It clears non-default users and restores default users password - Dump the default users info to a new file during build "/etc/sonic/default_users.json" - Supported new type "Keep-basic" in "config-setup factory" - Add new conf file for config-setup "/etc/config-setup/config-setup.conf #### How to verify it - Run reset-factory script with all types: < none | keep-all-config | only-config | keep-basic > - Run config-setup factory with parameters < none | keep-basic > #### Description for the changelog Support reset factory in Sonic OS #### Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| {%- set users_dict = { | ||
| username: { | ||
| "password": password, | ||
| "expire": password_expire | ||
| } | ||
| } | ||
| -%} | ||
| {{ users_dict | tojson(indent=4) }} |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| # conf file for config-setup | ||
| # file: /etc/config-setup/config-setup.conf | ||
| # | ||
| KEEP_BASIC_TABLES='["MGMT_PORT","MGMT_INTERFACE","MGMT_VRF_CONFIG","PASSW_HARDENING"]' |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,197 @@ | ||
| #!/bin/bash | ||
| ########################################################################### | ||
| # SONIC Factory reset script # | ||
| # /usr/bin/reset-factory # | ||
| # This script is used to reset the system to factory settings. # | ||
| # It creates factory default configuration and save it to config_db.json. # | ||
| # Also, it clear logs, tech-support, reboot-cause files, warmboot files, # | ||
| # docker containers non-default users, users history files and # | ||
| # home directories. # | ||
| ########################################################################### | ||
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| # Initialize constants | ||
| CONFIG_DB_JSON=/etc/sonic/config_db.json | ||
| DEFAULT_USERS_FILE=/etc/sonic/default_users.json | ||
| PERMLOG=/var/log/systemlog | ||
| SONIC_VERSION=$(sonic-cfggen -y /etc/sonic/sonic_version.yml -v build_version) | ||
| SONIC_OVERLAY_UPPERDIR="/host/image-$SONIC_VERSION/rw/etc/sonic" | ||
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| SERVICES_STOPPED=0 | ||
| trap "error_cleanup" HUP INT QUIT PIPE TERM | ||
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| # Command usage and help | ||
| usage() | ||
| { | ||
| cat << EOF | ||
| Usage: reset-factory < keep-all-config | only-config | keep-basic > | ||
| Create factory default configuration and save it to | ||
| to ${CONFIG_DB_JSON}. | ||
| Clears logs, system files and reboot the system. | ||
| Default - Reset configurations to factory default. Logs and files will be deleted. | ||
| keep-all-config - Preserves all configurations after boot. Logs and files will be deleted. | ||
| only-config - Reset configurations to factory default. Logs and files will be preserved. | ||
| keep-basic - Preserves basic configurations only after boot. Logs and files will be deleted. | ||
| EOF | ||
| } | ||
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| run_reboot() | ||
| { | ||
| reboot | ||
| # If for any reason we reach this code, then force reboot | ||
| rc=$? | ||
| if [ $rc -ne 0 ]; then | ||
| # Force reboot | ||
| reboot -f | ||
| fi | ||
| } | ||
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| error_cleanup() | ||
| { | ||
| if [ ! -z "${TEMP_CFG}" ]; then | ||
| # Recover config_db.json file | ||
| mv ${TEMP_CFG} ${CONFIG_DB_JSON} | ||
| fi | ||
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| if [ $SERVICES_STOPPED -eq 0 ]; then | ||
| ERRMSG="reset-factory: halted with error before stopping critical services; exiting" | ||
| logger $ERRMSG | ||
| echo $ERRMSG | ||
| exit 1 | ||
| else | ||
| ERRMSG="reset-factory: halted with error after stopping critical services; rebooting" | ||
| logger $ERRMSG | ||
| echo $ERRMSG | ||
| run_reboot | ||
| fi | ||
| } | ||
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| # Restore original /etc/sonic folder by clearing the folder in overlayfs upperdir | ||
| clear_sonic_dir() | ||
| { | ||
| EXCLUDE_LIST="${CONFIG_DB_JSON}\|/etc/sonic/sonic-environment" | ||
| find $SONIC_OVERLAY_UPPERDIR -type f | grep -ve ${EXCLUDE_LIST} | xargs rm -rf | ||
| # remount root | ||
| mount -o remount / | ||
| } | ||
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| # Get list of defaults users names and passwords from DEFAULT_USERS_FILE | ||
| # Delete non-default users and restore default password of default users | ||
| reset_users() | ||
| { | ||
| if [ ! -f "${DEFAULT_USERS_FILE}" ]; then | ||
| echo "Error: Failed to get default users information" | ||
| return | ||
| fi | ||
| # Get default user accounts | ||
| default_users=$(jq -r '. | keys[]' $DEFAULT_USERS_FILE) | ||
| EXCLUDE_LIST=$(echo $default_users | tr ' ' '|') | ||
| # Get non-default user accounts | ||
| other_users=$(getent passwd | awk -F: '($3>=1000 && $3<=60000) {print $1}' | grep -E -v $EXCLUDE_LIST) | ||
| echo "Remove non-default users" | ||
| for user in ${other_users[@]} | ||
| do | ||
| # avoid printing home directory and mail spool errors | ||
| userdel -rf $user 2> /dev/null | ||
| done | ||
| echo "Restore default users passwords" | ||
| for user in ${default_users[@]} | ||
| do | ||
| # Restore default password | ||
| user_pass=$(jq -r '.[$user].password' --arg user "${user}" $DEFAULT_USERS_FILE) | ||
| echo "$user:$user_pass" | chpasswd -e | ||
| # Check if we need to expire password | ||
| expire=$(jq -r '.[$user].expire' --arg user "${user}" $DEFAULT_USERS_FILE) | ||
| [ "${expire}" == "true" ] && passwd -e ${user} | ||
| done | ||
| } | ||
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| # Only root can run reset factory | ||
| if [ $UID != 0 ]; then | ||
| echo "You must be root to reset system to factory settings" | ||
| exit 1 | ||
| fi | ||
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| CMD=$1 | ||
| FACTORY_TYPE= | ||
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| if [ "$CMD" = "keep-all-config" ] || [ "$CMD" = "only-config" ] || \ | ||
| [ "$CMD" = "keep-basic" ] || [ -z "$CMD" ]; then | ||
| FACTORY_TYPE=$CMD | ||
| else | ||
| usage | ||
| exit 1 | ||
| fi | ||
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| SERVICES_STOPPED=1 | ||
| echo "Stop critical services" | ||
| monit unmonitor container_checker | ||
| systemctl stop sonic.target --job-mode replace-irreversibly | ||
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| rc=$? | ||
| if [ $rc -ne 0 ]; then | ||
| error_cleanup | ||
| fi | ||
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| DATE=$(date "+%Y/%m/%d %H:%M:%S") | ||
| HOSTNAME=$(hostname | sed 's/\./ /' | awk '{print $1}') | ||
| printf "%s %s reset-factory: resetting system to factory defaults\n" "$DATE" "$HOSTNAME" >> $PERMLOG | ||
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| # Backup and delete config_db.json | ||
| TEMP_CFG="/tmp/temp_config_db.$$" | ||
| cp ${CONFIG_DB_JSON} ${TEMP_CFG} | ||
| if [ "$FACTORY_TYPE" != "keep-basic" ] && [ "$FACTORY_TYPE" != "keep-all-config" ]; then | ||
| rm -f ${CONFIG_DB_JSON} | ||
| fi | ||
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| echo "Call config-setup factory" | ||
| config-setup factory $FACTORY_TYPE | ||
| rc=$? | ||
| if [ $rc -ne 0 ]; then | ||
| error_cleanup | ||
| fi | ||
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| if [ "$FACTORY_TYPE" != "only-config" ]; then | ||
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| if [ "$FACTORY_TYPE" != "keep-basic" ]; then | ||
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| # Delete non-default users and restore default users passwords | ||
| reset_users | ||
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| echo "Delete bash, python and vim history files" | ||
| find /home /root -type f -name ".bash_history" -o -name ".python_history" -o -name ".viminfo" | xargs rm -rf | ||
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| echo "Delete any non-dotfiles in users home directories" | ||
| find /home/ /root -type f ! -iname ".*" -delete | ||
| fi | ||
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| echo "Remove all docker containers except the database" | ||
| database_pattern=($(docker ps -a -q -f "name=database" | paste -sd '|' -)) | ||
| docker rm -f $(docker ps -a -q | egrep -v ${database_pattern}) > /dev/null | ||
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| echo "Clear sonic directory" | ||
| clear_sonic_dir | ||
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| echo "Clear warmboot folder" | ||
| find /host/warmboot/ -type f -delete | ||
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| echo "Delete reboot-cause files and symlinks" | ||
| find /host/reboot-cause/ -type l,f -delete | ||
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| echo "Delete tech-support files" | ||
| rm -rf /var/dump/* | ||
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| echo "Delete logs files" | ||
| find /var/log/ -type f ! -iname "wtmp" ! -iname "btmp" ! -iname "lastlog" ! -iname "systemlog" -delete | ||
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| # Clear wtmp, utmp and lastlog files | ||
| rm -rf /var/log/btmp.* | ||
| cat /dev/null > /var/log/btmp | ||
| rm -rf /var/log/wtmp.* | ||
| cat /dev/null > /var/log/wtmp | ||
| rm -rf /var/log/lastlog.* | ||
| cat /dev/null > /var/log/lastlog | ||
| fi | ||
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| run_reboot |