Add SLB for kargo cluster.

Table of Contents

1、download ansible roles and put into roles of kargo folder. https://github.com/devops-coop/ansible-haproxy https://github.com/tcomerma/ansible-keepalived 2、add hosts in inventory [ext-lb] test-51 test-67

[lb-kld] test-51 test-67

3、uncommit external LB configure

External LB example config

apiserver_loadbalancer_domain_name: "elb.k8s.com" loadbalancer_apiserver: address: 192.168.181.200 port: 8383

4、add some sections in cluster.yml

hosts: ext-lb any_errors_fatal: true roles:
- role: haproxy haproxy_frontends:
  - name: 'fe-kube-apiserver' ip: '192.168.181.200' port: '8383' maxconn: '1000' default_backend: 'be-kube-apiserver' haproxy_backends:
  - name: 'be-kube-apiserver' description: 'kube-apiserver is really cool' servers:
    - name: 'be-kube-apiserver-01' ip: '192.168.181.51:6443'
    - name: 'be-kube-apiserver-02' ip: '192.168.181.67:6443'
hosts: lb-kld[0] any_errors_fatal: true roles:
- { role: keepalived, keepalived_shared_ip: "192.168.181.200", keepalived_role: "master" }
hosts: lb-kld[1]:!k8s-cluster any_errors_fatal: true roles:
- { role: keepalived, keepalived_shared_ip: "192.168.181.200", keepalived_role: "slave" }

5 run kargo with ansible ulimit -n 50000 cd ../kargo nohup ansible-playbook -i inventory/hosts cluster.yml -vvv --flush-cache