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ELK Stack on Ubuntu Server 20.04 with Support by cloudimg

Jun 28, 2024
Ubuntu Server 20.04 – ELK Stack (Elasticsearch, Logstash & Kibana) Version: 1.0.0 Created by: cloudimg Table of Contents 1.) Overview......................................................................................................................1 2.) Access & Security..........................................................................................................2 3.) System Requirements....................................................................................................2 4.) Connecting to the Instance...........................................................................................2 5.) On Startup....................................................................................................................2 6.) Filesystem Configuration..............................................................................................3 7.) Server Components......................................................................................................3 8.) Scripts and Log Files.....................................................................................................4 9.) Using System Components...........................................................................................4 1.) Overview This document is provided as a user guide for the Ubuntu Server 20.04 – ELK stack product offering on the Alibaba Cloud Marketplace. Please reach out to support@cloudimg.co.uk if any issues are encountered following this user guide for the chosen product offering.2.)Access & Security Please update the security group of the target instance to allow the below ports and protocols for access and connectivity. Protocol Type Port Description SSH TCP 22 SSH connectivity TCP TCP 9200 Elasticsearch API calls over HTTP TCP TCP 5601 Kibana Dashboard 3.)System Requirements The minimum system requirements for the chosen product offering can be found below Minimum CPU Minimum RAM Required Disk Space 1 1 GB 20 GB 4.) Connecting to the Instance Once launched in the ECS Console, please connect to the instance via an SSH client using the root user with the key pair associated at launch. 5.) On Startup An OS package update script has been configured to run on boot to ensure the image is fully up to date at first use. You can disable this feature by removing the script from /stage/scripts/ and deleting the entry in crontab for the root user. Disable the OS update script from running on reboot rm -f /stage/scripts/initial_boot_update.sh crontab -e #DELETE THE BELOW LINE. SAVE AND EXIT THE FILE. @reboot /stage/scripts/initial_boot_update.sh6.) Filesystem Configuration Please see below for a screenshot of the server disk configuration and specific mount point mappings for software locations. Filesystem Size Used Avail Use% Mounted on udev 446M 0 446M 0% /dev tmpfs 95M 840K 94M 1% /run /dev/nvme0n1p3 38G 8.3G 28G 24% / tmpfs 472M 0 472M 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 472M 0 472M 0% /sys/fs/cgroup /dev/nvme0n1p2 2.0G 172M 1.7G 10% /boot /dev/nvme1n1 9.8G 80M 9.1G 3% /var/lib/elasticsearch /dev/loop0 56M 56M 0 100% /snap/core18/2409 /dev/loop2 68M 68M 0 100% /snap/lxd/22753 /dev/loop3 71M 71M 0 100% /snap/lxd/21029 /dev/loop5 56M 56M 0 100% /snap/core18/2128 /dev/loop4 47M 47M 0 100% /snap/snapd/16010 /dev/loop1 62M 62M 0 100% /snap/core20/1518 tmpfs 95M 0 95M 0% /run/user/1002 Mount Point Description /boot Operating System Kernel files /var/lib/elasticsearch Elasticsearch installation directory 7.) Server Components Please see below for a list of installed server components and their respective installation paths. The below versions are subject to change on initial boot based on the initial_boot_update.sh script finding new versions of the software in the systems package repositories. Component Version Software Home Aliyun CLI 3 /usr/local/bin/aliyunJava 11 /bin/java Elasticsearch 8.6.1 /var/lib/elasticsearch Logstash 1.8.6 /etc/logstash Kibana 8.6.1 /etc/kibana 8.) Scripts and Log Files The below table provides a breakdown of any scripts & log files created to enhance the useability of the chosen offering. Script/Log Path Description Initial_boot_update.sh /stage/scripts Update the Operating System with the latest updates available. Initial_boot_update.log /stage/scripts Provides output for initial_boot_update.sh elastic_password.log /stage/scripts Elastic user credentials kibana_password.log /stage/scripts Kibana system user credentials 9.) Using System Components Instructions can be found below for using each component of the server build mentioned in section 7 of this user guide document. Aliyun CLI Run – Once logged into the server, you may check the options available for the use of Aliyun CLI via the below command. aliyun –-help Java Java has been preinstalled on the instance and the below command can be used to verify the version currently installed. java -versionElasticsearch The Elasticsearch service has been configured to start on boot. You can stop, start and check the status of the service via the below commands. #START THE ELASTICSEARCH SERVICE systemctl start elasticsearch #STOP THE ELASTICSEARCH SERVICE systemctl stop elasticsearch #CHECK THE STATUS OF THE ELASTICSEARCH SERVICE systemctl status elasticsearch You can also run the below command once the service is running to ensure a successful startup of the service has taken place. Please run the below as the root user. Enter the password value highlighted in RED from the randomly generated value located in the /stage/scripts/elastic_password.log file curl --cacert /etc/elasticsearch/certs/http_ca.crt -u elastic http://localhost:9200 EXAMPLE EXPECTED OUTPUT Enter host password for user ''elastic'': ENTER PASSWORD AT PROMPT {
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ELK Stack on Ubuntu Server 20.04 with Support by cloudimg

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