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HAProxy Installation

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    Terminal window
    sudo -i

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    Terminal window
    apt update
    apt upgrade -y

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    Terminal window
    apt install haproxy

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    XXXXXXX vim (XXXXXXX)

    Terminal window
    vim /etc/haproxy/haproxy.cfg

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    # ... (deducted) ### DO NOT INCLUDE THIS ! ###
    

    frontend k8s
            bind *:80,*:443
            mode tcp
            option tcplog
            use_backend k8s_https if { dst_port 443 }
            default_backend k8s_http
    

    frontend haproxy_exporter
            bind *:8405
            mode http
            http-request use-service prometheus-exporter if { path /metrics }
            no log
    

    backend k8s_http
            mode tcp
            server worker1 10.1.0.111:30080 check
            server worker2 10.1.0.112:30080 check
            server worker3 10.1.0.113:30080 check
    

    backend k8s_https
            mode tcp
            server worker1 10.1.0.111:30443 check
            server worker2 10.1.0.112:30443 check
            server worker3 10.1.0.113:30443 check
    

    frontend api_servers
            bind *:6443
            mode tcp
            option tcplog
            default_backend k8s_api_https
    

    backend k8s_api_https
            balance roundrobin
            mode tcp
            option tcp-check
            default-server inter 10s downinter 5s rise 2 fall 2 slowstart 60s maxconn 250 maxqueue 256 weight 100
            server master1 10.1.0.101:6443 check
            server master2 10.1.0.102:6443 check
            server master3 10.1.0.103:6443 check
    

    listen rke_api
            bind *:9345
            mode tcp
            option tcplog
            balance roundrobin
            option tcp-check
            default-server inter 10s downinter 5s rise 2 fall 2 slowstart 60s maxconn 250 maxqueue 256 weight 100
            server master1 10.1.0.101:9345 check
            server master2 10.1.0.102:9345 check
            server master3 10.1.0.103:9345 check

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    • haproxy_exporter
    • k8s_http
    • k8s_https
    • k8s_api_https
    • rke_api

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    XXXXXXXXXXXXXXXXXXX server master<N> <IP-ADDRESS>:<PORT> check where N is number, XXXXXXXXXXXXXXXXXXXX

    XXXXXXXXXXXXXXXXXXX server worker<N> <IP-ADDRESS>:<PORT> check where N is number, XXXXXXXXXXXXXXXXXXXX

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    Terminal window
    systemctl restart haproxy