mirror of
https://github.com/dockersrc/scripts
synced 2024-11-22 11:23:06 -05:00
223 lines
10 KiB
Bash
Executable File
223 lines
10 KiB
Bash
Executable File
#!/usr/bin/env bash
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# https://www.gnu.org/software/bash/manual/html_node/The-Set-Builtin.html
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[ "$DEBUGGER" = "on" ] && echo "Enabling debugging" && set -o pipefail -x$DEBUGGER_OPTIONS || set -o pipefail
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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export PATH="/usr/local/etc/docker/bin:/usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin"
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# run trap command on exit
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trap 'retVal=$?;[ "$SERVICE_IS_RUNNING" != "true" ] && [ -f "/run/init.d/$EXEC_CMD_BIN.pid" ] && rm -Rf "/run/init.d/$EXEC_CMD_BIN.pid";exit $retVal' SIGINT SIGTERM EXIT
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# import the functions file
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if [ -f "/usr/local/etc/docker/functions/entrypoint.sh" ]; then
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. "/usr/local/etc/docker/functions/entrypoint.sh"
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fi
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# import variables
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for set_env in "/root/env.sh" "/usr/local/etc/docker/env"/*.sh "/config/env"/*.sh; do
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[ -f "$set_env" ] && . "$set_env"
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done
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Custom functions
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__rndc_key() { grep -s 'key "rndc-key" ' /etc/named.conf | grep -v 'KEY_RNDC' | sed 's|.*secret ||g;s|"||g;s|;.*||g' | grep '^' || return 1; }
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__tsig_key() { tsig-keygen -a hmac-sha256 | grep 'secret' | sed 's|.*secret "||g;s|"||g;s|;||g' | grep '^' || echo 'wp/HApbthaVPjwqgp6ziLlmnkyLSNbRTehkdARBDcpI='; }
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# execute command variables
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WORKDIR="" # set working directory
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SERVICE_UID="0" # set the user id
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SERVICE_USER="root" # execute command as another user
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SERVICE_PORT="53" # port which service is listening on
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EXEC_CMD_BIN="named" # command to execute
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EXEC_CMD_ARGS="-f -c /etc/named/named.conf" # command arguments
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PRE_EXEC_MESSAGE="" # Show message before execute
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Other variables that are needed
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etc_dir="/etc/bind"
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var_dir="/var/bind"
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data_dir="/data/named"
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conf_dir="/config/named"
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KEY_RNDC="${KEY_RNDC:-$(__tsig_key)}"
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KEY_DHCP="${KEY_DHCP:-$(__tsig_key)}"
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KEY_BACKUP="${KEY_BACKUP:-$(__tsig_key)}"
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KEY_CERTBOT="${KEY_CERTBOT:-$(__tsig_key)}"
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# use this function to update config files - IE: change port
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__update_conf_files() {
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[ -z "$(type -p 'named' 2>/dev/null)" ] && echo "the program named is not installed" && exit 1
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local zone_files="" serial=""
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serial="$(date +'%Y%m%d%S')"
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#
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mkdir -p "/run/named" "/data/logs/named"
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mkdir -p "$etc_dir/keys" "$var_dir/zones" "$conf_dir/keys" "$data_dir/zones"
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cp -Rf "$conf_dir/." "$etc_dir/"
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[ -f "$etc_dir/custom.conf" ] && mv -f "$etc_dir/custom.conf" "$etc_dir/named.conf"
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#
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sed -i 's|REPLACE_KEY_RNDC|'$KEY_RNDC'|g' "$etc_dir/rndc.key" #&>/dev/null
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sed -i 's|REPLACE_KEY_RNDC|'$KEY_RNDC'|g' "$etc_dir/named.conf" #&>/dev/null
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sed -i 's|REPLACE_KEY_DHCP|'$KEY_DHCP'|g' "$etc_dir/named.conf" #&>/dev/null
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sed -i 's|REPLACE_KEY_BACKUP|'$KEY_BACKUP'|g' "$etc_dir/named.conf" #&>/dev/null
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sed -i 's|REPLACE_KEY_CERTBOT|'$KEY_CERTBOT'|g' "$etc_dir/named.conf" #&>/dev/null
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#
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chmod -Rf 777 "/data/logs"
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for logfile in default debug security; do
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touch "/data/logs/named/${logfile}.log"
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chmod -Rf 777 "$file"
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done
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#
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zone_files="$(find "$data_dir/zones/" -type f | wc -l)"
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if [ $zone_files = 0 ] && [ ! -f "$data_dir/zones/$HOSTNAME.zone" ]; then
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cat <<EOF | tee "$data_dir/zones/$HOSTNAME.zone" &>/dev/null
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; config for $HOSTNAME
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@ IN SOA $HOSTNAME. root.$HOSTNAME. ( $serial 10800 3600 1209600 38400)
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IN NS $HOSTNAME.
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$HOSTNAME. IN A $CONTAINER_IP4_ADDRESS
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EOF
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fi
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#
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for dns_file in "$data_dir/zones"/*; do
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file_name="$(basename "$dns_file")"
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domain_name="$(grep -Rs '\$ORIGIN' "$dns_file" | awk '{print $NF}' | sed 's|.$||g')"
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if [ -f "$dns_file" ]; then
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cp -Rf "$dns_file" "$var_dir/zones/$file_name"
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if ! grep -qs "$domain_name" "$etc_dir/named.conf" && [ -n "$domain_name" ]; then
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cat <<EOF >>"$etc_dir/named.conf"
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# ********** begin $domain_name **********
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zone "$domain_name" {
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type master;
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file "$var_dir/zones/$file_name";
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notify yes;
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allow-update {key "certbot."; key "dhcp-key"; trusted;};
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allow-transfer { any; key "backup-key"; };
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};
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# ********** end $domain_name **********
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EOF
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grep -qs "$domain_name" "$etc_dir/named.conf" && echo "Added $domain_name to $etc_dir/named.conf"
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fi
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fi
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done
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named-checkconf -z /etc/bind/named.conf &>/dev/null && echo "named-checkconf has succeeded" || {
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echo "named-checkconf has failed:"
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named-checkconf -z /etc/bind/named.conf
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}
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return 0
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# use this function to setup ssl support
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__update_ssl_conf() {
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return 0
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# function to run before executing
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__pre_execute() {
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chown -Rf named:named "$etc_dir" "$var_dir" "/run/named" "/data/logs/named" && echo "changed ownership to named"
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find "$etc_dir" "$var_dir" "$conf_dir" "$data_dir" "/run/named" -type d -exec chmod -Rf 777 {} \; && echo "changed folder permissions to 777"
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find "$etc_dir" "$var_dir" "$conf_dir" "$data_dir" "/run/named" -type f -exec chmod -Rf 664 {} \; && echo "changed file permissions to 664"
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chmod -Rf 666 "$data_dir/log/named"/*
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return 0
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# script to start server
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__run_start_script() {
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local workdir="${WORKDIR:-$HOME}"
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local cmd="$EXEC_CMD_BIN $EXEC_CMD_ARGS"
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local user="${SERVICE_USER:-root}"
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local lc_type="${LC_ALL:-${LC_CTYPE:-$LANG}}"
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local home="${workdir//\/root/\/home\/docker}"
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local path="/usr/local/bin:/usr/bin:/bin:/usr/sbin"
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case "$1" in
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check) shift 1 && __pgrep $EXEC_CMD_BIN || return 5 ;;
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*) su_cmd env -i PWD="$home" HOME="$home" LC_CTYPE="$lc_type" PATH="$path" USER="$user" sh -c "$cmd" || return 10 ;;
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esac
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# process check functions
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__pcheck() { [ -n "$(type -P pgrep 2>/dev/null)" ] && pgrep -x "$1" &>/dev/null && return 0 || return 10; }
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__pgrep() { __pcheck "${1:-EXEC_CMD_BIN}" || __ps aux 2>/dev/null | grep -Fw " ${1:-$EXEC_CMD_BIN}" | grep -qv ' grep' | grep '^' && return 0 || return 10; }
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Allow ENV_ variable
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[ -f "/config/env/$EXEC_CMD_BIN.sh" ] && "/config/env/$EXEC_CMD_BIN.sh" # Import env file
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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WORKDIR="${ENV_WORKDIR:-$WORKDIR}" # change to directory
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SERVICE_USER="${ENV_SERVICE_USER:-$SERVICE_USER}" # execute command as another user
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SERVICE_UID="${ENV_SERVICE_UID:-$SERVICE_UID}" # set the user id
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SERVICE_PORT="${ENV_SERVICE_PORT:-$SERVICE_PORT}" # port which service is listening on
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EXEC_CMD_BIN="${ENV_EXEC_CMD_BIN:-$EXEC_CMD_BIN}" # command to execute
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EXEC_CMD_ARGS="${ENV_EXEC_CMD_ARGS:-$EXEC_CMD_ARGS}" # command arguments
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PRE_EXEC_MESSAGE="${ENV_PRE_EXEC_MESSAGE:-$PRE_EXEC_MESSAGE}" # Show message before execute
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SERVICE_EXIT_CODE=0 # default exit code
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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printf '%s\n' "# - - - Attempting to start $EXEC_CMD_BIN - - - #"
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# ensure the command exists
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if [ ! -f "$(type -P "$EXEC_CMD_BIN")" ] && [ -z "$EXEC_CMD_BIN" ]; then
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echo "$EXEC_CMD_BIN is not a valid command"
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exit 2
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fi
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# check if process is already running
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if __pgrep "$EXEC_CMD_BIN"; then
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SERVICE_IS_RUNNING="true"
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echo "$EXEC_CMD_BIN is running"
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exit 0
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fi
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# show message if env exists
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if [ -n "$EXEC_CMD_BIN" ]; then
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[ -n "$SERVICE_USER" ] && echo "Setting up service to run as $SERVICE_USER"
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[ -n "$SERVICE_PORT" ] && echo "$EXEC_CMD_BIN will be running on $SERVICE_PORT"
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fi
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Change to working directory
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[ -n "$WORKDIR" ] && mkdir -p "$WORKDIR" && __cd "$WORKDIR" && echo "Changed to $PWD"
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Initialize ssl
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__update_ssl_conf
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__update_ssl_certs
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# Updating config files
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__update_conf_files
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# run the pre execute commands
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[ -n "$PRE_EXEC_MESSAGE" ] && echo "$PRE_EXEC_MESSAGE"
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__pre_execute
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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WORKDIR="${WORKDIR:-}"
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if [ "$SERVICE_USER" = "root" ] || [ -z "$SERVICE_USER" ]; then
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su_cmd() { eval "$@" || return 1; }
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elif [ "$(builtin type -P gosu)" ]; then
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su_cmd() { gosu $SERVICE_USER "$@" || return 1; }
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elif [ "$(builtin type -P runuser)" ]; then
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su_cmd() { runuser -u $SERVICE_USER "$@" || return 1; }
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elif [ "$(builtin type -P sudo)" ]; then
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su_cmd() { sudo -u $SERVICE_USER "$@" || return 1; }
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elif [ "$(builtin type -P su)" ]; then
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su_cmd() { su -s /bin/sh - $SERVICE_USER -c "$@" || return 1; }
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else
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echo "Can not switch to $SERVICE_USER: attempting to run as root"
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su_cmd() { eval "$@" || return 1; }
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fi
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if [ -n "$WORKDIR" ] && [ "${SERVICE_USER:-$USER}" != "root" ]; then
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echo "Fixing file permissions"
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su_cmd chown -Rf $SERVICE_USER $WORKDIR $etc_dir $var_dir $log_dir
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fi
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if __pgrep $EXEC_CMD_BIN && [ -f "/run/init.d/$EXEC_CMD_BIN.pid" ]; then
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SERVICE_EXIT_CODE=1
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echo "$EXEC_CMD_BIN" is already running
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else
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echo "Starting service: $EXEC_CMD_BIN $EXEC_CMD_ARGS"
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su_cmd touch /run/init.d/$EXEC_CMD_BIN.pid
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__run_start_script "$@" |& tee -a "/data/logs/entrypoint.log"
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if [ "$?" -ne 0 ]; then
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echo "Failed to execute: $EXEC_CMD_BIN $EXEC_CMD_ARGS"
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SERVICE_EXIT_CODE=10 SERVICE_IS_RUNNING="false"
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su_cmd rm -Rf "/run/init.d/$EXEC_CMD_BIN.pid"
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fi
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fi
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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exit $SERVICE_EXIT_CODE
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