How to install elasticsearch in custom path? - linux

Question

I need to install Elasticsearch to path /opt/elasticsearch/ with all information in this path.
I mean, I need config path put in opt too.
https://www.elastic.co/guide/en/elasticsearch/reference/7.15/settings.html it says here I can set ES_PATH_CONF and ES_HOME env vars to change installation and config paths, but it doesn't work.
rpm --install elasticsearch-7.15.0-x86_64.rpm --prefix=/opt/elasticsearch/ it's not what I need and doesn't change config path.
It makes home directory in /opt/elasticsearch, and I get next structure and paths doesn't change. It still needs execution bins in /usr/share/elasticsearch/bin/
el6:~ # tree /opt/elasticsearch/ -d -L 3
/opt/elasticsearch/
├── lib
│   ├── sysctl.d
│   ├── systemd
│   │   └── system
│   └── tmpfiles.d
└── share
└── elasticsearch
├── bin
├── jdk
├── lib
├── modules
└── plugins
but i need
el5:~ # tree /opt/elasticsearch/ -d -L 1
/opt/elasticsearch/
├── bin
├── config
├── data
├── jdk
├── lib
├── logs
├── modules
└── plugins
with manually installation
mkdir /opt/elasticsearch/ && tar -xzf elasticsearch-7.15.0-linux-x86_64.tar.gz -C /opt/elasticsearch/ --strip-components 1
I have needed me structure. I made systemd service
[Unit]
Description=Elasticsearch
Documentation=https://www.elastic.co
Wants=network-online.target
After=network-online.target
[Service]
Type=notify
RuntimeDirectory=elasticsearch
PrivateTmp=true
Environment=ES_HOME=/opt/elasticsearch
Environment=ES_PATH_CONF=/opt/elasticsearch/config
Environment=PID_DIR=/var/run/elasticsearch
Environment=ES_SD_NOTIFY=true
EnvironmentFile=-/etc/sysconfig/elasticsearch
WorkingDirectory=/opt/elasticsearch
User=elasticsearch
Group=elasticsearch
ExecStart=/opt/elasticsearch/bin/elasticsearch -p ${PID_DIR}/elasticsearch.pid --quiet
# StandardOutput is configured to redirect to journalctl since
# some error messages may be logged in standard output before
# elasticsearch logging system is initialized. Elasticsearch
# stores its logs in /var/log/elasticsearch and does not use
# journalctl by default. If you also want to enable journalctl
# logging, you can simply remove the "quiet" option from ExecStart.
StandardOutput=journal
StandardError=inherit
# Specifies the maximum file descriptor number that can be opened by this process
LimitNOFILE=65535
# Specifies the maximum number of processes
# Specifies the maximum number of processes
LimitNPROC=4096
# Specifies the maximum size of virtual memory
LimitAS=infinity
# Specifies the maximum file size
LimitFSIZE=infinity
# Disable timeout logic and wait until process is stopped
TimeoutStopSec=0
# SIGTERM signal is used to stop the Java process
KillSignal=SIGTERM
# Send the signal only to the JVM rather than its control group
KillMode=process
# Java process is never killed
SendSIGKILL=no
# When a JVM receives a SIGTERM signal it exits with code 143
SuccessExitStatus=143
# Allow a slow startup before the systemd notifier module kicks in to extend the timeout
TimeoutStartSec=5000
[Install]
WantedBy=multi-user.target
But it doesn't start, doesn't crash, and doesn't write any logs in journalctl.
How can I install elasticsearch in opt with configs in it?

Answer 1

You could install elasticsearch to /opt/elasticsearch using your rpmcommand, then move the config files from their default location to your location of choice, and finally change the ES_PATH_CONFand ES_HOME env vars to their respective new path.
When using the "manual" installation method (by downloading the .tar.gz) you have the freedom to put the files where you want. wget returns 404 because the file/URL does not exist. wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.15.0-linux-x86_64.tar.gz should be the correct one. (you're missing -linux)

Answer 2

the only way to do that is to download the tar.gz into your directory and then manually add all the environment variables, and build and manage your own init script