Adding the Elasticsearch script

ct/elasticsearch.sh

@@ -0,0 +1,119 @@
+#!/usr/bin/env bash
+source <(curl -s https://raw.githubusercontent.com/ELKozel/Proxmox/main/misc/build.func)
+# Copyright (c) 2024 ELKozel
+# Author: T.H. (ELKozel)
+# License: MIT
+# https://github.com/tteck/Proxmox/raw/main/LICENSE
+
+function header_info {
+clear
+cat <<"EOF"
+ _____ _           _   _                              _     
+| ____| | __ _ ___| |_(_) ___ ___  ___  __ _ _ __ ___| |__  
+|  _| | |/ _` / __| __| |/ __/ __|/ _ \/ _` | '__/ __| '_ \ 
+| |___| | (_| \__ \ |_| | (__\__ \  __/ (_| | | | (__| | | |
+|_____|_|\__,_|___/\__|_|\___|___/\___|\__,_|_|  \___|_| |_|
+
+EOF
+}
+header_info
+echo -e "Loading..."
+APP="Elasticsearch"
+var_disk="16"
+var_cpu="4"
+var_ram="4096"
+var_os="debian"
+var_version="12"
+variables
+color
+catch_errors
+
+function default_settings() {
+  CT_TYPE="1"
+  PW=""
+  CT_ID=$NEXTID
+  HN=$NSAPP
+  DISK_SIZE="$var_disk"
+  CORE_COUNT="$var_cpu"
+  RAM_SIZE="$var_ram"
+  BRG="vmbr0"
+  NET="dhcp"
+  GATE=""
+  APT_CACHER=""
+  APT_CACHER_IP=""
+  DISABLEIP6="no"
+  MTU=""
+  SD=""
+  NS=""
+  MAC=""
+  VLAN=""
+  SSH="no"
+  VERB="no"
+  echo_default
+}
+
+function update_script() {
+  header_info
+  if [[ ! -f /etc/systemd/system/elasticsearch.service ]]; then msg_error "No ${APP} Installation Found!"; exit; fi
+  if (( $(df /boot | awk 'NR==2{gsub("%","",$5); print $5}') > 80 )); then
+    read -r -p "Warning: Storage is dangerously low, continue anyway? <y/N> " prompt
+    [[ ${prompt,,} =~ ^(y|yes)$ ]] || exit
+  fi
+
+  msg_info "Stopping ${APP}"
+  $STD /bin/systemctl stop elasticsearch.service
+  msg_ok "Stopped ${APP}"
+
+  msg_info "Updating ${APP}"
+  $STD apt-get install elasticsearch &>/dev/null
+  msg_ok "Updated ${APP}"
+
+  msg_info "Starting ${APP}"
+  $STD /bin/systemctl restart elasticsearch.service
+  msg_ok "Started ${APP}"
+
+  msg_ok "Updated Successfully"
+  exit
+}
+
+function ask_extend_mmap() {
+  echo "Elasticsearch recommends extending the vm.max_map_count on the host"
+  read -r -p "Would you like to extend mmap count? <y/N>" prompt
+  if [[ ${prompt,,} =~ ^(y|yes)$ ]]; then
+    msg_info "Extending mmap count"
+    sysctl -w vm.max_map_count=262144 >/dev/null
+    # Check if the setting is persistent
+    if ! grep -q "vm.max_map_count" /etc/sysctl.conf; then
+      echo "vm.max_map_count=262144" >> /etc/sysctl.conf
+    fi
+    msg_ok "Extended mmap count"
+  fi
+}
+
+start
+ask_extend_mmap
+build_container
+description
+
+msg_info "Configuring User"
+ELASTIC_USER=elastic
+KIBANA_USER=kibana
+ELASTIC_PASSWORD=$(lxc-attach -n "$CTID" -- bash -c "/usr/share/elasticsearch/bin/elasticsearch-reset-password -sbf -u $ELASTIC_USER" || exit)
+KIBANA_TOKEN=$(lxc-attach -n "$CTID" -- bash -c "/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s $KIBANA_USER" || exit)
+ENROLLMENT_TOKEN=$(lxc-attach -n "$CTID" -- bash -c "/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s node" || exit)
+msg_ok "Configured User"
+
+msg_info "Checking Health"
+ELASTIC_PORT=9200
+curl -s -XGET --insecure --fail --user $ELASTIC_USER:$ELASTIC_PASSWORD https://${IP}:$ELASTIC_PORT/_cluster/health?pretty >/dev/null
+msg_ok "Checked Health"
+
+msg_ok "Completed Successfully!\n"
+echo -e "${APP} is installed, you can check it's health by running:
+${BL}curl -XGET --insecure --fail --user $ELASTIC_USER:$ELASTIC_PASSWORD https://${IP}:$ELASTIC_PORT/_cluster/health?pretty${CL}
+Elasticsearch credentials are:
+User: ${BL}${ELASTIC_USER}${CL}
+Password: ${BL}${ELASTIC_PASSWORD}${CL}
+Enrollment and Kibana tokens were also generated for you:
+Kibana Token: ${BL}${KIBANA_TOKEN}${CL}
+Enrollment Token: ${BL}${ENROLLMENT_TOKEN}${CL} \n"