gistfile1.c

body common control {
    bundlesequence => { "set_dns_configuration" } ;
}

#######################################################################
# Configure DNS
# Use Google's DNS servers, and set the defaut domain to normation.com
#######################################################################
bundle agent set_dns_configuration {
    vars:
        "resolvers"  slist => { "8.8.8.8", "8.8.4.4" };
        "searchlist" slist => { "normation.com" };

files:
    "$(sys.resolv)"
        create        => "true",
        edit_line     => doresolv("@(this.searchlist)","@(this.resolvers)"),
        comment       => "Configuring the searchlist and dns in the resolv.conf file ";
}

#######################################################
# Configure the resolv.conf file
# Setting the search and nameserver values
# Adding a header to tell the file is configured by Cfengine
#######################################################
bundle edit_line doresolv(search,resolvers) {
    delete_lines:
        "search.*";
        "nameserver.*";

insert_lines:
    "#############################################################
    ### This file is configured by Cfengine.
    ### Manually editing the file might lead Cfengine
    ### to change back its content
    #############################################################"
        location => start,
        insert_type => "preserve_block";

    "search $(search)";
    "nameserver $(resolvers)";
}

# This body comes from the cfengine_stdlib.cf
body location start {
    before_after => "before";
}