Tim Gerla
11 years ago
parent
cd3b1e30ca
commit
3ff2020d2c
@ -1,10 +0,0 @@ |
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--- |
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# This Playbook adds a webserver into the the web cluster |
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- hosts: webservers |
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user: root |
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serial: 1 |
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tasks: |
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- include: roles/web/tasks/install_httpd.yml |
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- include: roles/web/tasks/copy_code.yml |
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- include: roles/web/tasks/add_to_lb.yml |
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@ -1,10 +0,0 @@ |
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--- |
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# This playbook removes a webserver from the pool serially. |
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# Change the value of serial: to adjust the number of servers |
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# to be removed at a time. |
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- hosts: webservers |
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user: root |
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serial: 1 |
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tasks: |
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- include: ../roles/web/tasks/remove_from_lb.yml |
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@ -0,0 +1,39 @@ |
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# {{ ansible_managed }} |
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# service checks to be applied to all hosts |
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define service { |
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use local-service |
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host_name localhost |
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service_description Root Partition |
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check_command check_local_disk!20%!10%!/ |
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} |
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define service { |
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use local-service |
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host_name * |
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service_description Current Users |
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check_command check_local_users!20!50 |
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} |
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define service { |
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use local-service |
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host_name * |
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service_description Total Processes |
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check_command check_local_procs!250!400!RSZDT |
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} |
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define service { |
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use local-service |
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host_name * |
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service_description Current Load |
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check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0 |
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} |
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define service { |
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use local-service |
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host_name * |
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service_description Swap Usage |
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check_command check_local_swap!20!10 |
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} |
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@ -0,0 +1,25 @@ |
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# {{ ansible_managed }} |
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define hostgroup { |
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hostgroup_name dbservers |
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alias Database Servers |
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} |
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{% for host in groups['dbservers'] %} |
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define host { |
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use linux-server |
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host_name {{ host }} |
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alias {{ host }} |
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address {{ hostvars[host].ansible_default_ipv4.address }} |
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hostgroups dbservers |
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} |
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{% endfor %} |
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|
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#define service { |
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# use local-service |
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# hostgroup_name dbservers |
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# service_description MySQL Database Server |
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# check_command check_mysql |
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# notifications_enabled 0 |
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#} |
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@ -0,0 +1,22 @@ |
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# {{ ansible_managed }} |
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define hostgroup { |
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hostgroup_name loadbalancers |
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alias Load Balancers |
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} |
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{% for host in groups['lbservers'] %} |
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define host { |
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use linux-server |
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host_name {{ host }} |
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alias {{ host }} |
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address {{ hostvars[host].ansible_default_ipv4.address }} |
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hostgroups loadbalancers |
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} |
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define service { |
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use local-service |
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host_name {{ host }} |
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service_description HAProxy Load Balancer |
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check_command check_http!-p{{ hostvars[host].listenport }} |
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} |
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{% endfor %} |
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@ -1,112 +0,0 @@ |
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# {{ ansible_managed }} |
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define hostgroup { |
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hostgroup_name webservers |
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alias Web Servers |
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} |
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|
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define hostgroup { |
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hostgroup_name loadbalancers |
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alias Load Balancers |
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} |
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|
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define hostgroup { |
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hostgroup_name dbservers |
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alias Database Servers |
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} |
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|
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{% for host in groups['webservers'] %} |
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define host { |
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use linux-server |
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host_name {{ host }} |
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alias {{ host }} |
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address {{ hostvars[host].ansible_default_ipv4.address }} |
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hostgroups webservers |
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} |
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{% endfor %} |
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|
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{% for host in groups['lbservers'] %} |
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define host { |
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use linux-server |
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host_name {{ host }} |
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alias {{ host }} |
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address {{ hostvars[host].ansible_default_ipv4.address }} |
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hostgroups loadbalancers |
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} |
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define service { |
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use local-service |
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host_name {{ host }} |
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service_description HAProxy Load Balancer |
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check_command check_http!-p{{ hostvars[host].listenport }} |
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} |
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{% endfor %} |
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{% for host in groups['dbservers'] %} |
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define host { |
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use linux-server |
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host_name {{ host }} |
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alias {{ host }} |
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address {{ hostvars[host].ansible_default_ipv4.address }} |
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hostgroups dbservers |
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} |
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{% endfor %} |
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|
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# service checks to be applied to all hosts |
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|
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define service { |
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use local-service |
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host_name localhost |
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service_description Root Partition |
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check_command check_local_disk!20%!10%!/ |
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} |
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|
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define service { |
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use local-service |
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host_name * |
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service_description Current Users |
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check_command check_local_users!20!50 |
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} |
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|
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|
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define service { |
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use local-service |
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host_name * |
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service_description Total Processes |
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check_command check_local_procs!250!400!RSZDT |
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} |
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|
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define service { |
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use local-service |
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host_name * |
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service_description Current Load |
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check_command check_local_load!5.0,4.0,3.0!10.0,6.0,4.0 |
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} |
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|
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define service { |
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use local-service |
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host_name * |
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service_description Swap Usage |
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check_command check_local_swap!20!10 |
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} |
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|
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# service checks to be applied to the web server |
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define service { |
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use local-service |
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hostgroup_name webservers |
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service_description webserver |
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check_command check_http |
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notifications_enabled 0 |
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} |
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# service checks to be applied to the database server |
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#define service { |
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# use local-service |
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# hostgroup_name dbservers |
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# service_description MySQL Database Server |
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# check_command check_mysql |
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# notifications_enabled 0 |
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#} |
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@ -0,0 +1,25 @@ |
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# {{ ansible_managed }} |
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define hostgroup { |
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hostgroup_name webservers |
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alias Web Servers |
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} |
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{% for host in groups['webservers'] %} |
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define host { |
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use linux-server |
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host_name {{ host }} |
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alias {{ host }} |
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address {{ hostvars[host].ansible_default_ipv4.address }} |
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hostgroups webservers |
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} |
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{% endfor %} |
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|
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# service checks to be applied to the web server |
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define service { |
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use local-service |
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hostgroup_name webservers |
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service_description webserver |
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check_command check_http |
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notifications_enabled 0 |
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} |
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@ -1,5 +0,0 @@ |
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--- |
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# Handler for the web tier |
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- name: restart iptables |
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service: name=iptables state=restarted |
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@ -1,15 +0,0 @@ |
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--- |
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# This Playbook handles the addition of a web server to the pool. |
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- name: Add server to LB |
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lineinfile: dest=/etc/haproxy/haproxy.cfg state=present regexp="${ansible_hostname}" line="server ${ansible_hostname} ${hostvars.{$inventory_hostname}.ansible_$iface.ipv4.address}:${httpd_port}" |
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delegate_to: $item |
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with_items: ${groups.lbservers} |
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register: last_run |
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- name: Reload the haproxy |
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service: name=haproxy state=reloaded |
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delegate_to: $item |
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with_items: ${groups.lbservers} |
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only_if: ${last_run.changed} |
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@ -1,8 +0,0 @@ |
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--- |
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# This Playbook is responsible for copying the latest dev/production code from the version control system. |
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- name: Copy the code from repository |
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git: repo=${repository} dest=/var/www/html/ |
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- name: Create the index.php file |
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template: src=index.php.j2 dest=/var/www/html/index.php |
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@ -1,11 +0,0 @@ |
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--- |
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# This playbook installs the php modules. |
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- name: Install http and php etc |
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action: yum name=$item state=installed |
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with_items: |
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- php |
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- php-mysql |
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- name: Configure SELinux to allow httpd to connect to remote database |
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seboolean: name=httpd_can_network_connect_db state=true persistent=yes |
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@ -0,0 +1,17 @@ |
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--- |
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# httpd is handled by the base-apache role upstream |
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- name: Install php |
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action: yum name=$item state=installed |
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with_items: |
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- php |
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- php-mysql |
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- name: Configure SELinux to allow httpd to connect to remote database |
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seboolean: name=httpd_can_network_connect_db state=true persistent=yes |
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- name: Copy the code from repository |
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git: repo=${repository} dest=/var/www/html/ |
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- name: Create the index.php file |
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template: src=index.php.j2 dest=/var/www/html/index.php |
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@ -1,23 +0,0 @@ |
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--- |
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# This playbook handles the removal of a webserver from the pool. |
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- name: Remove the code from server |
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command: rm -rf /var/www/html/* |
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- name: Remove server from LB |
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lineinfile: dest=/etc/haproxy/haproxy.cfg state=absent regexp="${ansible_hostname}" |
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delegate_to: $item |
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with_items: ${groups.lbservers} |
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register: last_run |
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- name: disable the server in haproxy |
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shell: echo "disable server myapplb/${ansible_hostname}" | socat stdio /var/lib/haproxy/stats |
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delegate_to: $item |
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with_items: ${groups.lbservers} |
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- name: Remove the httpd package |
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yum: name=httpd state=absent |
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