Troubleshooting Connection Issues When Setting Up an OpenSearch Cluster Across Multiple Ubuntu Virtual Machines

Question

I am trying to set up an OpenSearch cluster with 2 nodes on two different Ubuntu 22.04 virtual machine instances with the following IPs: os01: 10.34.132.37 os02: 10.34.132.230

I have pinged and confirmed that they can communicate with each other.

On each instance, I will install OpenSearch using Docker (specifically Docker Compose) as follows: Instance IP 10.34.132.37:

`version: '3.8'

services:
os01:
restart: always
image: opensearchproject/opensearch:2.15.0
environment:
- cluster.name=opensearch-cluster
- node.name=os01
- discovery.seed_hosts=10.34.132.37,10.34.132.230
- cluster.initial_master_nodes=10.34.132.37,10.34.132.230
- "OPENSEARCH_JAVA_OPTS=-Xms2g -Xmx2g"
- bootstrap.memory_lock=true
- network.host=0.0.0.0
- OPENSEARCH_INITIAL_ADMIN_PASSWORD=a!Str0ng686#@!
ulimits:
memlock:
soft: -1
hard: -1
volumes:
# - ./custom-opensearch.yml:/usr/share/opensearch/config/opensearch.yml
- os-data1:/usr/share/opensearch/data
logging:
driver: "json-file"
options:
max-size: "100m"
max-file: "1"
ports:
- 9200:9200
- 9600:9600
- 9300:9300
networks:
- opensearch-network
kibana:
restart: always
image: opensearchproject/opensearch-dashboards:2.15.0
environment:
OPENSEARCH_HOSTS: '["https://10.34.132.37:9200", "https://10.34.132.230:9200"]'
OPENSEARCH_USERNAME: "admin"
OPENSEARCH_PASSWORD: "a!Str0ng686#@!"
server.host: "0.0.0.0"
logging:
driver: "json-file"
options:
max-size: "100m"
max-file: "1"
depends_on:
- os01
ports:
- 5601:5601
networks:
- opensearch-network

volumes:
os-data1:

networks:
opensearch-network:
driver: bridge`

Instance IP 10.34.132.230:

`version: '3.8'

services:
os02:
restart: always
image: opensearchproject/opensearch:2.15.0
environment:
- cluster.name=opensearch-cluster
- node.name=os02
- discovery.seed_hosts=10.34.132.37,10.34.132.230
- cluster.initial_master_nodes=10.34.132.37,10.34.132.230
- "OPENSEARCH_JAVA_OPTS=-Xms2g -Xmx2g"
- bootstrap.memory_lock=true
- network.host=0.0.0.0
- OPENSEARCH_INITIAL_ADMIN_PASSWORD=a!Str0ng686#@!
ulimits:
memlock:
soft: -1
hard: -1
volumes:
# - ./custom-opensearch.yml:/usr/share/opensearch/config/opensearch.yml
- os-data1:/usr/share/opensearch/data
logging:
driver: "json-file"
options:
max-size: "100m"
max-file: "1"
ports:
- 9200:9200
- 9600:9600
- 9300:9300
networks:
- opensearch-network

volumes:
os-data1:

networks:
opensearch-network:
driver: bridge
`

However, when I run it, it shows an error like this:

enter image description here

I have also tried customizing the settings in opensearch.yml like this:

`cluster.name: test-cluster

node.name: node-1
node.roles: [master, data, ingest]

network.host: 0.0.0.0
http.port: 9200

discovery.seed_hosts:

10.34.132.37
10.34.132.230
cluster.initial_master_nodes:

node-1
node-2
bootstrap.memory_lock: true
plugins.security.disabled: true

cluster.name: test-cluster
node.name: node-2
node.roles: [master, data, ingest]

network.host: 0.0.0.0
http.port: 9200

discovery.seed_hosts:

10.34.132.37
10.34.132.230
cluster.initial_master_nodes:

node-1
node-2
bootstrap.memory_lock: true
plugins.security.disabled: true

Can you help me with this?

I want them to connect with each other and be on the same OpenSearch cluster.