Cookbook Files and Templates Tutorial | CHEF NTP Tutorial | DevOps with AWS Tutorial
Cookbook Files and Templates Tutorial | Cookbook NTP Tutorial | DevOps with AWS Tutorial
#Cookbook #CookbookTutorial #CookbookNTP #DevOpsTutorial
coobook
statements
if
when
looping
if/etc/ssh/sshd_config do this if the file does not exists create it
onlyif will ge execute only if the file is present
notif
configuration file for a process
100 lines of playbook
1st line config file is changes
process has tob e restarted immedialy at the end of the client excution
notify restart immediatly delayed
NOT IF
Copy file somefile123 from workstation to client
/root/chef-repo/cookbooks/notif/templates/somefile123
dest=/tmp/somefile123
if file /etc/passwd does not exists , then only do this
knife node run_list add nodename cookbook
knife node edit nodename i editor
notify
if a configuration file for application xyz is changed
restart xyz
excute some command this case
immediatly
execute at the end of the chef-client execute delayed
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hosts webserer
tasks
name : copy a file from serer to sae
template : src-index.html dest -/ar/www/html/index.html
template '/ar/www/html/index.html' do
source 'index.html'
end
ssh configuration file
application xyz
changed the configuration file
1 immediatly copy the file execute the command create group
2 delayed copy the file create group execute the command
1 1000 lines
100 configuration file xyz immediatly 110
2 1000 lines
100 configuration file xyz
110
202
900
1000 restart
execute a shell scripts as part of cookbook execution
10 lines
bash
multi packages
[package1,package2,package3], each do
action : install
end
when
os_family : read
when
os_family :redhat
package name =httpd
action : install
os_family : ubuntu
package name - apache2
action : install
component in chef, that gathers system ariables for all the clients
facts in ansible
aws opsworks
ntp network time protocol
100 machines in the lab
all machines should be in time sync
ntp serer synced to all clients
ntp clients
ntp serer
ntp client
configuration
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