106 lines
3.5 KiB
Bash
Executable File
106 lines
3.5 KiB
Bash
Executable File
#!/bin/bash
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# Info: Script to install/create/delete/update coredns from file settings
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# Author: JesusPerezLorenzo
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# Release: 1.0
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# Date: 12-11-2024
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USAGE="install-coredns.sh install | update | remvoe"
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[ "$1" == "-h" ] && echo "$USAGE" && exit 1
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[ -r "env-coredns" ] && . ./env-coredns
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OS=$(uname | tr '[:upper:]' '[:lower:]')
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ARCH="$(uname -m | sed -e 's/x86_64/amd64/' -e 's/\(arm\)\(64\)\?.*/\1\2/' -e 's/aarch64$/arm64/')"
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CMD_TSKSRVC=${1:-install}
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HOSTNAME=$(hostname)
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export LC_CTYPE=C.UTF-8
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export LANG=C.UTF-8
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[ ! -d "/etc/coredns" ] && sudo mkdir /etc/coredns
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ROOT=$(dirname "$0")
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_init() {
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[ -z "$COREDNS_VERSION" ] || [ -z "$ARCH" ] && exit 1
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local has_coredns
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local curr_vers
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has_coredns=$(type -P coredns)
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[ -n "$has_coredns" ] && curr_vers=$(coredns -version 2>/dev/null | grep CoreDNS | cut -f2 -d"-" | sed 's/ //g')
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[ "$curr_vers" == "$COREDNS_VERSION" ] && return
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[ -n "$has_coredns" ] && sudo timeout -k 10 20 systemctl stop coredns
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[ ! -d "tmp" ] && mkdir tmp
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rm -f "tmp/coredns_${COREDNS_VERSION}_${OS}_${ARCH}.tgz"
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if ! curl -fsSL https://github.com/coredns/coredns/releases/download/v${COREDNS_VERSION}/coredns_${COREDNS_VERSION}_${OS}_${ARCH}.tgz -o "tmp/coredns_${COREDNS_VERSION}_${OS}_${ARCH}.tgz" ; then
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echo "Error downloading coredns_${COREDNS_VERSION}_${OS}_${ARCH}.tgz"
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exit 1
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fi
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if ! tar xzf "tmp/coredns_${COREDNS_VERSION}_${OS}_${ARCH}.tgz" -C tmp ; then
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echo "Error extracting coredns_${COREDNS_VERSION}-${ARCH}.tar.gz"
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exit 1
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fi
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rm -f "tmp/coredns_${COREDNS_VERSION}_${OS}_${ARCH}.tgz"
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[ ! -r "tmp/coredns" ] && echo "Error extracting coredns" && exit 1
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chmod +x tmp/coredns
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sudo mv tmp/coredns /usr/local/bin
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rm -r "tmp"
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}
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_config_coredns() {
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[ ! -d "/etc/coredns" ] && sudo mkdir /etc/coredns
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has_user=$(sudo grep coredns /etc/passwd)
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[ -z "$has_user" ] && sudo useradd -d /var/lib/coredns -m coredns
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# [ ! -d "/etc/ssl/coredns" ] && sudo mkdir -p /etc/ssl/coredns
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sudo cp "$ROOT"/Corefile /etc/coredns 2>/dev/null
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sudo cp "$ROOT"/resources/* /etc/coredns 2>/dev/null
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sudo rm -f /etc/coredns/*.j2
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sudo chown -R coredns:coredns /etc/coredns
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if [ ! -L "/etc/systemd/system/coredns.service" ] ; then
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sudo cp coredns.service /lib/systemd/system/coredns.service
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sudo timeout -k 10 20 systemctl daemon-reload >/dev/null 2>&1
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#[ ! -L "/etc/systemd/system/coredns.service" ] && sudo ln -s /lib/systemd/system/coredns.service /etc/systemd/system
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fi
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sudo timeout -k 10 20 systemctl enable --now coredns >/dev/null 2>&1
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sudo timeout -k 10 20 systemctl restart coredns >/dev/null 2>&1
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}
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_stop_resolved() {
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sudo timeout -k 10 20 systemctl stop coredns >/dev/null 2>&1
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sudo timeout -k 10 20 systemctl disable coredns >/dev/null 2>&1
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}
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_remove_coredns() {
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sudo timeout -k 10 20 systemctl stop coredns >/dev/null 2>&1
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sudo timeout -k 10 20 systemctl disable coredns >/dev/null 2>&1
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}
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_start_coredns() {
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sudo timeout -k 10 20 systemctl enable coredns >/dev/null 2>&1
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sudo timeout -k 10 20 systemctl start coredns >/dev/null 2>&1
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}
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_restart_coredns() {
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sudo timeout -k 10 20 systemctl restart coredns >/dev/null 2>&1
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}
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if [ "$CMD_TSKSRVC" == "config" ] ; then
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_config_coredns
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exit
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fi
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if [ "$CMD_TSKSRVC" == "remove" ] ; then
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_remove_coredns
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exit
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fi
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if ! _init ; then
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echo "error coredns init"
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exit 1
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fi
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if ! _config_coredns ; then
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echo "error coredns config"
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exit 1
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fi
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[ "$CMD_TSKSRVC" == "update" ] && _restart_coredns && exit 0
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if ! _stop_resolved ; then
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echo "error coredns stop"
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exit 1
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fi
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if ! _start_coredns ; then
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echo "error coredns start"
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exit 1
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fi |