Basic Sensu Go Cluster LoadBalancer

sensu_go_loadbalancer.conf

# Example of Basic Sensu Go Load Balancer


# Load balancer for backend api
# Default port is 8080
upstream sensu_api {
    # Clients with the same IP are redirected to the same backend
    ip_hash;

    # Available backend servers
    server 192.168.50.20:8080;
    server 192.168.50.21:8080;
    server 192.168.50.22:8080;
}

# Load balancer for dashboard
# Default port is 3000
upstream sensu_dashboard {
    # Clients with the same IP are redirected to the same backend
    ip_hash;

    # Available backend servers
    server 192.168.50.20:3000;
    server 192.168.50.21:3000;
    server 192.168.50.22:3000;
}

# Load balancer for agent websocket 
# Default port is 8081
upstream sensu_agent_ws {
    # Clients with the same IP are redirected to the same backend
    ip_hash;

    # Available backend servers
    server 192.168.50.20:8081;
    server 192.168.50.21:8081;
    server 192.168.50.22:8081;
}

# Sensu websocket proxy
server {
    listen 8081;

    location / {
        ## switch off logging
        access_log off;

        # redirect all HTTP traffic to sensu_agent_ws loadbalancer defined above:
        proxy_pass http://sensu_agent_ws;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        # WebSocket support (nginx 1.4)
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

    }
}

# Sensu API proxy
server {
    listen 8080;

    location / {
        ## switch off logging
        access_log off;

        # redirect all HTTP traffic to sensu_api loadbalancer defined above:
        proxy_pass http://sensu_api;
    }
}

# Sensu Dashboard proxy 
server {
    listen 3000;

    location / {
        ## switch off logging
        access_log off;

        # redirect all HTTP traffic to sensu_dashboard loadbalancer defined above:
        proxy_pass http://sensu_dashboard;

    }
}

Jef - you are the BOMB for sharing this - many thanks!!!!!

i should revisit this and make sure it works with sensu agent mtls support for the websocket api on 8081. I think it should, but i havent tested it.