Merge pull request #1540 from detiber/haproxy_tuning

Add setting for configuring nofile limit for haproxy

playbooks/common/openshift-master/config.yml

@@ -232,6 +232,7 @@
   hosts: oo_lb_to_config
   vars:
     sync_tmpdir: "{{ hostvars.localhost.g_master_mktemp.stdout }}"
+    haproxy_limit_nofile: 100000
     haproxy_global_maxconn: 20000
     haproxy_default_maxconn: 20000
     haproxy_frontend_port: "{{ hostvars[groups.oo_first_master.0].openshift.master.api_port }}"

roles/haproxy/tasks/main.yml

@@ -3,6 +3,26 @@
   action: "{{ ansible_pkg_mgr }} name=haproxy state=present"
   when: not openshift.common.is_containerized | bool
 
+- name: Configure systemd service directory for haproxy
+  file:
+    path: /etc/systemd/system/haproxy.service.d
+    state: directory
+  when: haproxy_limit_nofile is defined
+
+- name: Configure the nofile limits for haproxy
+  ini_file:
+    dest: /etc/systemd/system/haproxy.service.d/limits.conf
+    section: Service
+    option: LimitNOFILE
+    value: "{{ haproxy_limit_nofile }}"
+  when: haproxy_limit_nofile is defined
+  notify: restart haproxy
+  register: nofile_limit_result
+
+- name: Reload systemd if needed
+  command: systemctl daemon-reload
+  when: nofile_limit_result | changed
+
 - name: Configure haproxy
   template:
     src: haproxy.cfg.j2