# Test recipe with Chef search patterns
# Find all web servers in production environment
web_servers = search(:node, "role:web AND environment:production")
web_servers.each do |server|
log "Found web server: #{server.name}" do
level :info
end
end
# Search for database servers
db_servers = search(:node, "role:database")
# Configure load balancer with web servers
template "/etc/nginx/upstream.conf" do
source "upstream.conf.erb"
variables(
servers: search(:node, "role:web AND chef_environment:production")
)
notifies :reload, "service[nginx]", :delayed
end
# Use partial search for efficiency
monitoring_nodes = partial_search(:node, "tags:monitoring",
keys: {
'name' => ['name'],
'ip' => ['ipaddress'],
'roles' => ['roles']
}
)
# Check for specific platform
if search(:node, "platform:ubuntu").length > 0
package "ubuntu-specific-package"
end
# Complex search with regex
web_nodes = search(:node, "hostname:~web.*\.example\.com")
# Environment-specific configuration
case node.chef_environment
when "production"
app_servers = search(:node, "role:app AND chef_environment:production")
when "staging"
app_servers = search(:node, "role:app AND chef_environment:staging")
end
