mirror of
https://github.com/wazuh/wazuh-docker.git
synced 2025-11-03 21:43:17 +00:00
238 lines
7.6 KiB
Plaintext
238 lines
7.6 KiB
Plaintext
#!/usr/bin/with-contenv bash
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# Wazuh App Copyright (C) 2017, Wazuh Inc. (License GPLv2)
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# Variables
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source /permanent_data.env
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WAZUH_INSTALL_PATH=/var/ossec
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WAZUH_CONFIG_MOUNT=/wazuh-config-mount
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AUTO_ENROLLMENT_ENABLED=${AUTO_ENROLLMENT_ENABLED:-true}
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##############################################################################
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# Aux functions
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##############################################################################
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print() {
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echo -e $1
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}
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error_and_exit() {
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echo "Error executing command: '$1'."
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echo 'Exiting.'
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exit 1
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}
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exec_cmd() {
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eval $1 > /dev/null 2>&1 || error_and_exit "$1"
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}
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exec_cmd_stdout() {
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eval $1 2>&1 || error_and_exit "$1"
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}
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##############################################################################
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# This function will attempt to mount every directory in PERMANENT_DATA
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# into the respective path.
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# If the path is empty means permanent data volume is also empty, so a backup
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# will be copied into it. Otherwise it will not be copied because there is
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# already data inside the volume for the specified path.
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##############################################################################
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mount_permanent_data() {
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for permanent_dir in "${PERMANENT_DATA[@]}"; do
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data_tmp="${WAZUH_INSTALL_PATH}/data_tmp/permanent${permanent_dir}/"
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print ${data_tmp}
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# Check if the path is not empty
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if find ${permanent_dir} -mindepth 1 | read; then
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print "The path ${permanent_dir} is already mounted"
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else
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if find ${data_tmp} -mindepth 1 | read; then
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print "Installing ${permanent_dir}"
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exec_cmd "cp -a ${data_tmp}. ${permanent_dir}"
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else
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print "The path ${permanent_dir} is empty, skiped"
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fi
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fi
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done
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}
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##############################################################################
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# This function will replace from the permanent data volume every file
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# contained in PERMANENT_DATA_EXCP
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# Some files as 'internal_options.conf' are saved as permanent data, but
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# they must be updated to work properly if wazuh version is changed.
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##############################################################################
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apply_exclusion_data() {
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for exclusion_file in "${PERMANENT_DATA_EXCP[@]}"; do
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if [ -e ${WAZUH_INSTALL_PATH}/data_tmp/exclusion/${exclusion_file} ]
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then
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DIR=$(dirname "${exclusion_file}")
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if [ ! -e ${DIR} ]
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then
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mkdir -p ${DIR}
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fi
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print "Updating ${exclusion_file}"
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exec_cmd "cp -p ${WAZUH_INSTALL_PATH}/data_tmp/exclusion/${exclusion_file} ${exclusion_file}"
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fi
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done
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}
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##############################################################################
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# This function will rename in the permanent data volume every file
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# contained in PERMANENT_DATA_MOVE
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##############################################################################
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move_data_files() {
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for mov_file in "${PERMANENT_DATA_MOVE[@]}"; do
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file_split=( $mov_file )
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if [ -e ${file_split[0]} ]
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then
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print "moving ${mov_file}"
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exec_cmd "mv -f ${mov_file}"
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fi
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done
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}
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##############################################################################
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# This function will delete from the permanent data volume every file
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# contained in PERMANENT_DATA_DEL
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##############################################################################
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remove_data_files() {
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for del_file in "${PERMANENT_DATA_DEL[@]}"; do
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if [ -e ${del_file} ]
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then
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print "Removing ${del_file}"
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exec_cmd "rm -f ${del_file}"
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fi
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done
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}
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##############################################################################
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# Create certificates: Manager
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##############################################################################
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create_ossec_key_cert() {
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print "Creating wazuh-authd key and cert"
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exec_cmd "openssl genrsa -out ${WAZUH_INSTALL_PATH}/etc/sslmanager.key 4096"
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exec_cmd "openssl req -new -x509 -key ${WAZUH_INSTALL_PATH}/etc/sslmanager.key -out ${WAZUH_INSTALL_PATH}/etc/sslmanager.cert -days 3650 -subj /CN=${HOSTNAME}/"
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}
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##############################################################################
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# Copy all files from $WAZUH_CONFIG_MOUNT to $WAZUH_INSTALL_PATH and respect
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# destination files permissions
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#
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# For example, to mount the file /var/ossec/data/etc/ossec.conf, mount it at
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# $WAZUH_CONFIG_MOUNT/etc/ossec.conf in your container and this code will
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# replace the ossec.conf file in /var/ossec/data/etc with yours.
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##############################################################################
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mount_files() {
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if [ -e "$WAZUH_CONFIG_MOUNT" ]
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then
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print "Identified Wazuh configuration files to mount..."
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exec_cmd_stdout "cp --verbose -r $WAZUH_CONFIG_MOUNT/* $WAZUH_INSTALL_PATH"
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else
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print "No Wazuh configuration files to mount..."
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fi
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}
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##############################################################################
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# Allow users to set the container hostname as <node_name> dynamically on
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# container start.
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#
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# To use this:
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# 1. Create your own ossec.conf file
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# 2. In your ossec.conf file, set to_be_replaced_by_hostname as your node_name
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# 3. Mount your custom ossec.conf file at $WAZUH_CONFIG_MOUNT/etc/ossec.conf
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##############################################################################
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set_custom_hostname() {
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sed -i 's/<node_name>to_be_replaced_by_hostname<\/node_name>/<node_name>'"${HOSTNAME}"'<\/node_name>/g' ${WAZUH_INSTALL_PATH}/etc/ossec.conf
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}
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##############################################################################
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# Allow users to set the container cluster key dynamically on
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# container start.
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#
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# To use this:
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# 1. Create your own ossec.conf file
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# 2. In your ossec.conf file, set to_be_replaced_by_cluster_key as your key
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# 3. Mount your custom ossec.conf file at $WAZUH_CONFIG_MOUNT/etc/ossec.conf
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##############################################################################
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set_custom_cluster_key() {
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sed -i 's/<key>to_be_replaced_by_cluster_key<\/key>/<key>'"${WAZUH_CLUSTER_KEY}"'<\/key>/g' ${WAZUH_INSTALL_PATH}/etc/ossec.conf
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}
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##############################################################################
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# Modify /var/ossec/queue/rids directory owner on
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# container start.
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##############################################################################
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set_rids_owner() {
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chown -R wazuh:wazuh /var/ossec/queue/rids
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}
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##############################################################################
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# Change any ossec user/group to wazuh user/group
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##############################################################################
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set_correct_permOwner() {
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find / -group 997 -exec chown :999 {} +;
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find / -group 101 -exec chown :999 {} +;
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find / -user 101 -exec chown 999 {} +;
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}
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##############################################################################
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# Main function
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##############################################################################
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main() {
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# Mount permanent data (i.e. ossec.conf)
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mount_permanent_data
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# Restore files stored in permanent data that are not permanent (i.e. internal_options.conf)
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apply_exclusion_data
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# Apply correct permission and ownership
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set_correct_permOwner
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# Rename files stored in permanent data (i.e. queue/ossec)
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move_data_files
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# Remove some files in permanent_data (i.e. .template.db)
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remove_data_files
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# Generate wazuh-authd certs if AUTO_ENROLLMENT_ENABLED is true and does not exist
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if [ $AUTO_ENROLLMENT_ENABLED == true ]
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then
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if [ ! -e ${WAZUH_INSTALL_PATH}/etc/sslmanager.key ]
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then
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create_ossec_key_cert
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fi
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fi
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# Mount selected files (WAZUH_CONFIG_MOUNT) to container
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mount_files
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# Allow setting custom hostname
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set_custom_hostname
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# Allow setting custom cluster key
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set_custom_cluster_key
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# Delete temporary data folder
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rm -rf ${WAZUH_INSTALL_PATH}/data_tmp
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# Set rids directory owner
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set_rids_owner
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}
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main
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