latest

lamp_haproxy/roles/add_webservers.yml

@@ -1,10 +0,0 @@
----
-# This Playbook adds  a webserver into the the web cluster
-
-- hosts: webservers
-  user: root
-  serial: 1
-  tasks:
-   - include: ../roles/webtier/tasks/install_httpd.yml
-   - include: ../roles/webtier/tasks/copy_code.yml
-   - include: ../roles/webtier/tasks/add_to_lb.yml

lamp_haproxy/roles/db.yml

@@ -1,11 +0,0 @@
----
-# This playbook deploys mysql and configures database on the db node/nodes  
-
-- hosts: dbservers
-  user: root
-  tasks: 
-     - include: common/tasks/main.yml 
-     - include: dbtier/tasks/install_mysql.yml
-  handlers:
-     - include: dbtier/handlers/main.yml
-     - include: common/handlers/main.yml 

lamp_haproxy/roles/dbtier/handlers/main.yml

@@ -1,6 +0,0 @@
----
-# Handler to handle DB tier notifications
-
-- name: restart mysql
-  service: name=mysqld state=restarted
-

lamp_haproxy/roles/dbtier/tasks/install_mysql.yml

@@ -1,32 +0,0 @@
----
-# This playbook will install mysql and create db user and give permissions.
-
-- name: Install Mysql package
-  action: yum pkg=$item state=installed
-  with_items:
-   - mysql-server
-   - MySQL-python
-   - libselinux-python
-   - libsemanage-python
-
-- name: Configure SELinux to start mysql on any port
-  seboolean: name=mysql_connect_any state=true persistent=yes
-
-- name: Create Mysql configuration file
-  action: template src=dbtier/templates/my.cnf.j2 dest=/etc/my.cnf
-  notify: 
-  - restart mysql
-
-- name: Start Mysql Service
-  service: name=mysqld state=started enabled=true
-
-- name: insert iptables rule
-  lineinfile: dest=/etc/sysconfig/iptables state=present regexp="$mysql_port" insertafter="^:OUTPUT " line="-A INPUT -p tcp  --dport $mysql_port -j  ACCEPT"
-  notify: restart iptables
-
-
-- name: Create Application Database
-  mysql_db: name=$dbname state=present
-
-- name: Create Application DB User
-  mysql_user: name=$dbuser password=$upassword priv=*.*:ALL host='%' state=present

lamp_haproxy/roles/dbtier/templates/my.cnf.j2

@@ -1,11 +0,0 @@
-[mysqld]
-datadir=/var/lib/mysql
-socket=/var/lib/mysql/mysql.sock
-user=mysql
-# Disabling symbolic-links is recommended to prevent assorted security risks
-symbolic-links=0
-port={{ mysql_port }}
-
-[mysqld_safe]
-log-error=/var/log/mysqld.log
-pid-file=/var/run/mysqld/mysqld.pid

lamp_haproxy/roles/haproxy.yml

@@ -1,10 +0,0 @@
----
-#PlayBook for haproxy operations
-
-- hosts: lbservers
-  user: root
-  tasks:
-   - include: haproxy/tasks/install_haproxy.yml
-  handlers:
-   - include: haproxy/handlers/main.yml
-   - include: common/handlers/main.yml

lamp_haproxy/roles/haproxy/tasks/install_haproxy.yml

@@ -1,19 +0,0 @@
----
-# This PlayBook Installs the HAProxy and configures it.
-
-- name: Download and install haproxy
-  command: creates=/opt/haproxy.rpm curl -o /opt/haproxy.rpm ftp://ftp.univie.ac.at/systems/linux/fedora/epel/6/i386/haproxy-1.4.18-1.el6.i686.rpm
-
-- name: Install the haproxy rpm.
-  command: creates=/etc/haproxy/haproxy.cfg yum -y localinstall  /opt/haproxy.rpm
-
-- name: Install the socat package for dynamic addition/removal of hosts
-  yum: name=socat state=installed
-
-- name: Open firewall port for haproxy.
-  lineinfile: dest=/etc/sysconfig/iptables state=present regexp="$listenport" insertafter="^:OUTPUT " line="-A INPUT -p tcp  --dport $listenport -j  ACCEPT"
-  notify: restart iptables
-
-- name: Configure the haproxy cnf file with hosts
-  template: src=haproxy/templates/haproxy.cfg.j2 dest=/etc/haproxy/haproxy.cfg
-  notify: restart haproxy

lamp_haproxy/roles/remove_webservers.yml

@@ -1,9 +0,0 @@
----
-# This Playbook removes a  webserver from  the pool serialy.
-
-
-- hosts: webservers
-  user: root
-  serial: 1
-  tasks:
-   - include: ../roles/webtier/tasks/remove_from_lb.yml

lamp_haproxy/roles/rolling_update.yml

@@ -1,8 +0,0 @@
----
-# This Playbook does a rolling update of the code for all webservers serially (one at a time). Change the value of serial: to adjust the number of server to be updated.
-
-- hosts: webservers
-  user: root
-  serial: 1
-  tasks:
-   - include: ../roles/webtier/tasks/rolling_update.yml

lamp_haproxy/roles/web.yml

@@ -1,11 +0,0 @@
----
-# This Playbook deploys the WebServers with httpd and the code.
-
-- hosts: webservers
-  user: root
-  tasks:
-  - include: common/tasks/main.yml
-  - include: webtier/tasks/install_httpd.yml
-  - include: webtier/tasks/copy_code.yml
-  handlers:
-   - include: webtier/handlers/main.yml

lamp_haproxy/roles/webtier/handlers/main.yml

@@ -1,5 +0,0 @@
----
-# Handler for the webtier
-
-- name: restart iptables
-  service: name=iptables state=restarted

lamp_haproxy/roles/webtier/tasks/add_to_lb.yml

@@ -1,15 +0,0 @@
----
-# This Playbook does utility stuff's like adding a webserver into the pool, etc..
-
-- name: Add server to LB
-  lineinfile: dest=/etc/haproxy/haproxy.cfg state=present regexp="${ansible_hostname}" line="server ${ansible_hostname} ${ansible_eth0.ipv4.address}:${httpd_port}"
-  delegate_to: $item
-  with_items: ${groups.lbservers}  
-  register: last_run
-   
-- name: Reload the haproxy
-  service: name=haproxy state=reloaded
-  delegate_to: $item
-  with_items: ${groups.lbservers} 
-  only_if: ${last_run.changed}
-

lamp_haproxy/roles/webtier/tasks/copy_code.yml

@@ -1,10 +0,0 @@
----
-# This Playbook is responsible for copying the latest dev/production code from the version control system. 
-
-- name: Copy the code from repository
-  git: repo=${repository} dest=/var/www/html/
-
-
-- name: Create's the index.php file 
-  template: src=webtier/templates/index.php.j2 dest=/var/www/html/index.php
-  

lamp_haproxy/roles/webtier/tasks/install_httpd.yml

@@ -1,26 +0,0 @@
----
-# This playbook installs http and the php modules.
-
-- name: Install http and php etc
-  action: yum  name=$item state=installed
-  with_items:
-   - httpd
-   - php
-   - php-mysql
-   - libsemanage-python
-   - libselinux-python
-  
-
-- name: insert iptables rule for httpd
-  lineinfile: dest=/etc/sysconfig/iptables state=present regexp="$httpd_port" insertafter="^:OUTPUT " line="-A INPUT -p tcp  --dport $httpd_port -j  ACCEPT"
-  register: last_run
-
-- name: Apply iptable rule
-  service: name=iptables state=restarted
-  only_if: ${last_run.changed}
-
-- name: http service state
-  service: name=httpd state=started enabled=yes
-
-- name: Configure SELinux to allow httpd to connect to remote database
-  seboolean: name=httpd_can_network_connect_db state=true persistent=yes 

lamp_haproxy/roles/webtier/tasks/remove_from_lb.yml

@@ -1,23 +0,0 @@
----
-# This Playbook does utility stuff's like adding a webserver into the pool, etc..
-
-- name: Remove the code from server
-  command: rm -rf /var/www/html/*
-  
-- name: Remove server from LB
-  lineinfile: dest=/etc/haproxy/haproxy.cfg state=absent regexp="${ansible_hostname}" 
-  delegate_to: $item
-  with_items: ${groups.lbservers}
-  register: last_run
-
-- name: disable the server in haproxy
-  shell: echo "disable server myapplb/${ansible_hostname}" | socat stdio /var/lib/haproxy/stats
-  delegate_to: $item
-  with_items: ${groups.lbservers}
-
-- name: Remove the httpd package
-  yum: name=httpd state=absent
-
-
-
- 

lamp_haproxy/roles/webtier/tasks/rolling_update.yml

@@ -1,22 +0,0 @@
----
-# This Playbook implements a rolling update on the infrastructure, change the value of the serial keyword to specify the number of servers the update should happen.
-
-- name: Remove the code from server
-  command: rm -rf /var/www/html/*
-
-- name: disable the server in haproxy
-  shell: echo "disable server myapplb/${ansible_hostname}" | socat stdio /var/lib/haproxy/stats
-  delegate_to: $item
-  with_items: ${groups.lbservers}
-
-- name: Copy the code from repository
-  git: repo=${repository} dest=/var/www/html/
-   
-- name: Create's the index.php file
-  template: src=webtier/templates/index.php.j2 dest=/var/www/html/index.php
-
-- name: Enable the server in haproxy
-  shell: echo "enable server myapplb/${ansible_hostname}" | socat stdio /var/lib/haproxy/stats
-  delegate_to: $item
-  with_items: ${groups.lbservers}
-

lamp_haproxy/roles/webtier/tasks/utils.yml

@@ -1,39 +0,0 @@
----
-# This Playbook does utility stuff's like adding a webserver into the pool, etc..
-
-- name: Add server to LB
-  lineinfile: dest=/etc/haproxy/haproxy.cfg state=present regexp="${ansible_hostname}" line="server ${ansible_hostname} ${ansible_eth0.ipv4.address}:${httpd_port}"
-  delegate_to: ${lbserver}
-  register: last_run
-  tags: add
-   
-- name: Reload the haproxy
-  service: name=haproxy state=reloaded
-  delegate_to: ${lbserver}
-  only_if: ${last_run.changed}
-  tags: add
-
-- name: Remove the code from server
-  command: rm -rf /var/www/html/*
-  tags: remove
-  
-- name: Remove server from LB
-  lineinfile: dest=/etc/haproxy/haproxy.cfg state=absent regexp="${ansible_hostname}" 
-  delegate_to: $item
-  with_items: ${groups.lbservers}}
-  register: last_run
-  tags: remove
-
-- name: disable the server in haproxy
-  shell: echo "disable server myapplb/${ansible_hostname}" | socat stdio /var/lib/haproxy/stats
-  delegate_to: $item
-  with_items: ${groups.lbservers}}
-  tags:  remove
-
-- name: Remove the httpd package
-  yum: name=httpd state=absent
-  tags: remove
-
-
-
- 

lamp_haproxy/roles/webtier/templates/index.php.j2

@@ -1,16 +0,0 @@
-<html>
- <head>
-  <title>Ansible Application</title>
- </head>
- <body>
- </br>
-  <a href=http://{{ ansible_eth0.ipv4.address }}/index.html>Homepage</a>
- </br>
-<?php 
- Print "Hello, World! I am configured in Ansible and i am : ";
- echo exec('hostname');
- Print  "</BR>";
-?>
-</body>
-</html>
-

lamp_simple/README.md

@@ -42,17 +42,6 @@ Now we setup our Lamp Stack, The stack can be on a single node or multiple nodes
 
 Here the webserver would be configured on the localhost and the dbserver on bensible. The stack can be deployed using the following command.
 
- 	ansible-playbook -i hosts site.yml
+        ansible-playbook -i hosts site.yml
 
 Once Done, you can check by browsing to http://<ipofhost>/index.php
-
-If you want to add a new webserver to the stack it would be as simple as changing the hosts file to add the new webserver name and rerun the above command.
-
-        [webservers]
-        localhost
-        webserver1
-
-        [dbservers]
-        bensible
-
-        ansible-playbook -i hosts site.yml

lamp_simple/hosts

@@ -1,5 +1,7 @@
 [webservers]
-web2
+web3
 
 [dbservers]
-web3
+web2
+
+

lamp_simple/roles/common/tasks/main.yml

@@ -6,7 +6,7 @@
   tags: ntp
 
 - name: Configure ntp file
-  template: src=common/templates/ntp.conf.j2 dest=/etc/ntp.conf
+  template: src=../roles/common/templates/ntp.conf.j2 dest=/etc/ntp.conf
   tags: ntp
   notify: restart ntp
 

lamp_simple/roles/db.yml

@@ -1,11 +0,0 @@
----
-# This playbook deploys mysql and configures database on the db node/nodes  
-
-- hosts: dbservers
-  user: root
-  tasks: 
-     - include: common/tasks/main.yml 
-     - include: dbtier/tasks/install_mysql.yml
-  handlers:
-     - include: dbtier/handlers/main.yml
-     - include: common/handlers/main.yml 

lamp_simple/roles/dbtier/handlers/main.yml

@@ -1,6 +0,0 @@
----
-# Handler to handle DB tier notifications
-
-- name: restart mysql
-  service: name=mysqld state=restarted
-

lamp_simple/roles/dbtier/tasks/install_mysql.yml

@@ -1,32 +0,0 @@
----
-# This playbook will install mysql and create db user and give permissions.
-
-- name: Install Mysql package
-  action: yum pkg=$item state=installed
-  with_items:
-   - mysql-server
-   - MySQL-python
-   - libselinux-python
-   - libsemanage-python
-
-- name: Configure SELinux to start mysql on any port
-  seboolean: name=mysql_connect_any state=true persistent=yes
-
-- name: Create Mysql configuration file
-  action: template src=dbtier/templates/my.cnf.j2 dest=/etc/my.cnf
-  notify: 
-  - restart mysql
-
-- name: Start Mysql Service
-  service: name=mysqld state=started enabled=true
-
-- name: insert iptables rule
-  lineinfile: dest=/etc/sysconfig/iptables state=present regexp="$mysql_port" insertafter="^:OUTPUT " line="-A INPUT -p tcp  --dport $mysql_port -j  ACCEPT"
-  notify: restart iptables
-
-
-- name: Create Application Database
-  mysql_db: name=$dbname state=present
-
-- name: Create Application DB User
-  mysql_user: name=$dbuser password=$upassword priv=*.*:ALL host='%' state=present

lamp_simple/roles/dbtier/templates/my.cnf.j2

@@ -1,11 +0,0 @@
-[mysqld]
-datadir=/var/lib/mysql
-socket=/var/lib/mysql/mysql.sock
-user=mysql
-# Disabling symbolic-links is recommended to prevent assorted security risks
-symbolic-links=0
-port={{ mysql_port }}
-
-[mysqld_safe]
-log-error=/var/log/mysqld.log
-pid-file=/var/run/mysqld/mysqld.pid

lamp_simple/roles/web.yml

@@ -1,11 +0,0 @@
----
-# This Playbook deploys the WebServers with httpd and the code.
-
-- hosts: webservers
-  user: root
-  tasks:
-  - include: common/tasks/main.yml
-  - include: webtier/tasks/install_httpd.yml
-  - include: webtier/tasks/copy_code.yml
-  handlers:
-   - include: webtier/handlers/main.yml

lamp_simple/roles/webtier/handlers/main.yml

@@ -1,5 +0,0 @@
----
-# Handler for the webtier
-
-- name: restart iptables
-  service: name=iptables state=restarted

lamp_simple/roles/webtier/tasks/copy_code.yml

@@ -1,10 +0,0 @@
----
-# This Playbook is responsible for copying the latest dev/production code from the version control system. 
-
-- name: Copy the code from repository
-  git: repo=${repository} dest=/var/www/html/
-
-
-- name: Create's the index.php file 
-  template: src=webtier/templates/index.php.j2 dest=/var/www/html/index.php
-  

lamp_simple/roles/webtier/tasks/install_httpd.yml

@@ -1,26 +0,0 @@
----
-# This playbook installs http and the php modules.
-
-- name: Install http and php etc
-  action: yum  name=$item state=installed
-  with_items:
-   - httpd
-   - php
-   - php-mysql
-   - libsemanage-python
-   - libselinux-python
-  
-
-- name: insert iptables rule for httpd
-  lineinfile: dest=/etc/sysconfig/iptables state=present regexp="$httpd_port" insertafter="^:OUTPUT " line="-A INPUT -p tcp  --dport $httpd_port -j  ACCEPT"
-  register: last_run
-
-- name: Apply iptable rule
-  service: name=iptables state=restarted
-  only_if: ${last_run.changed}
-
-- name: http service state
-  service: name=httpd state=started enabled=yes
-
-- name: Configure SELinux to allow httpd to connect to remote database
-  seboolean: name=httpd_can_network_connect_db state=true persistent=yes 

lamp_simple/roles/webtier/templates/index.php.j2

@@ -1,24 +0,0 @@
-<html>
- <head>
-  <title>Ansible Application</title>
- </head>
- <body>
- </br>
-  <a href=http://{{ ansible_eth0.ipv4.address }}/index.html>Homepage</a>
- </br>
-<?php 
- Print "Hello, World! I am configured in Ansible and i am : ";
- echo exec('hostname');
- Print  "</BR>";
-echo  "List of Databases: </BR>";
-        {% for host in groups['dbservers'] %}
-                $link = mysql_connect('{{ hostvars[host].ansible_eth0.ipv4.address }}', '{{ hostvars[host].dbuser }}', '{{ hostvars[host].upassword }}') or die(mysql_error());
-        {% endfor %}
-        $res = mysql_query("SHOW DATABASES");
-        while ($row = mysql_fetch_assoc($res)) {
-                echo $row['Database'] . "\n";
-        }
-?>
-</body>
-</html>
-

lamp_simple/site.yml

@@ -1,5 +1,5 @@
 ---
 #This Playbook deploys the whole application stack in this site.  
 
-- include: roles/db.yml
-- include: roles/web.yml
+- include: playbooks/db.yml
+- include: playbooks/web.yml