This is a "classic" mistake (that is, everyone makes it) so don't feel badly :-)
The insert_lines promise really says "I promise that this line will be present
in the file, and if it isn't, then I will insert it". So there are a few
things going on here:
1) You said "insert a '{' if it is missing", so cfengine inserted it.
2) You repeated your promise (in a different place), but this time cfengine
said "hey, I already did that!", so you don't get a second one
3) When you change the line with tabs and spaces, then as far as cfengine is
concerned, that's a different line, so it inserts that.
4) You never specified *where* to insert lines, so they'll go at the end of
your file (try deleting one of your fixed addresses, and running cf-agent and
see where it gets replaced)
There are a number of solutions, more or less related:
1) Use a constant file that you store somewhere and just copy. It actually
takes about the same amount of effort to copy a file as it does to edit an
existing one. Not as "clever" or "elegant", but a lot easier.
2) Start with a framework file, and then fill in the guts, which means you need
to look at the select_region body for edit_lines
(http://cfengine.com/manuals/cf3-reference.html#select_005fregion-in-_002a)
3) You can get more complicated, but why?
I'd recommend solution 1. Really. The reason is that in general, only one
person touches dhcpd.conf, it's a big file, and doesn't change often (so does
it need to be repaired often?). Solution 2 is next, forget solution 3 :-)
You have one more problem. You say:
> "my_macs" string => "50:e5:49:5b:e2:be";
> "my_macs" string => "00:1e:8f:79:ac:e9";
> "my_macs" string => "a8:e3:ee:02:dc:58";
And that is redefining a string - not what you wanted. I think you wanted to
say something more like
> "my_macs[foo]" string => "50:e5:49:5b:e2:be";
> "my_macs[baz]" string => "00:1e:8f:79:ac:e9";
> "my_macs[gar]" string => "a8:e3:ee:02:dc:58";
And the same thing for my_ips.
-Dan
On Jan 11, 2012, at 6:36 AM, [email protected] wrote:
> Forum: CFEngine Help
> Subject: insert line: bug ??
> Author: stchesmeli
> Link to topic: https://cfengine.com/forum/read.php?3,24539,24539#msg-24539
>
> Hello all,
>
> i'm wondering if there is a bug in insert line.... let me explain
>
> I'm trying to build my dhcpd.conf with list of host and array of macs and ips.
> My code:
>
>
> bundle common icebox_lan
> {
> vars:
> "my_macs" string => "50:e5:49:5b:e2:be";
> "my_macs" string => "00:1e:8f:79:ac:e9";
> "my_macs" string => "a8:e3:ee:02:dc:58";
> "my_macs" string => "7c:61:93:8d:93:b8";
> "my_macs" string => "00:19:1d:fd:55:b0";
> "my_macs" string => "00:24:d6:87:18:80";
> "my_macs" string => "00:26:b9:d2:ce:aa";
> "my_macs" string => "4c:0f:6e:d4:c2:29";
> "my_macs" string => "e8:5b:5b:c1:17:86";
> "my_macs" string => "00:26:4d:a5:d3:68";
> "my_macs" string => "00:27:0e:07:61:a0";
> "my_macs" string => "e8:be:81:2c:27:59";
>
> "my_ips" string => "192.168.50.10";
> "my_ips" string => "192.168.50.40";
> "my_ips" string => "192.168.50.18";
> "my_ips" string => "192.168.50.19";
> "my_ips" string => "192.168.50.25";
> "my_ips" string => "192.168.50.50";
> "my_ips" string => "192.168.50.51";
> "my_ips" string => "192.168.50.20";
> "my_ips" string => "192.168.50.30";
> "my_ips" string => "192.168.50.31";
> "my_ips" string => "192.168.50.254";
> "my_ips" string => "192.168.50.1";
>
> "my_hosts" slist => getindices("my_macs");
> "my_domain" string => "icebox.lan";
> "my_router" string => "$(my_ips)";
> "my_ns1" string => "$(my_ips)";
> "my_ns2" string => "$(my_ips)";
> }
>
> bundle common goldorak_conf
> {
> vars:
> "pkg_dhcpd" string => "isc-dhcp-server";
> }
>
> bundle agent set_goldo_dhcp_server
> {
> vars:
> "my_dhcdp_options" string =>
> "ddns-update-style none;
> log-facility local7;
>
> ";
>
> "my_share_network" string =>
> "shared-network home
> {
> subnet 192.168.50.0 netmask 255.255.255.0 {
> option domain-name \"$(icebox_lan.my_domain)\";
> option domain-name-servers $(icebox_lan.my_ns1), $(icebox_lan.my_ns2);
> option routers $(icebox_lan.my_router);
> default-lease-time 600;
> max-lease-time 7200;
> }
>
> subnet 10.0.0.0 netmask 255.255.255.0 {
> option domain-name \"blackhole.lan\";
> option domain-name-servers 10.0.0.1;
> option routers 10.0.0.1;
> range 10.0.0.10 10.0.0.250;
> default-lease-time 600;
> max-lease-time 7200;
> }
> }
> ";
> packages:
> "$(goldorak_conf.pkg_dhcpd)"
> package_policy => "add",
> package_method => generic,
> classes => if_repaired("dhcpd_installed");
> files:
> "/etc/dhcp/dhcpd.conf"
> comment => "Set the dhcpd configuration",
> edit_line => dhcpdconf(${my_dhcdp_options}, ${my_share_network},
> @(icebox_lan.my_hosts), "icebox_lan.my_macs", "icebox_lan.my_ips" ),
> create => "true",
> edit_defaults => empty,
> perms => mog("644","root","root"),
> classes => if_repaired("dhcpd_repaired");
> processes:
> "/usr/sbin/dhcpd"
> restart_class => "restart_dhcpd";
> commands:
> dhcpd_installed::
> "/usr/sbin/update-rc.d $(goldorak_conf.pkg_dhcpd) defaults";
> dhcpd_repaired|restart_dhcpd::
> "/etc/init.d/isc-dhcp-server restart";
> }
>
> bundle edit_line dhcpdconf(doptions,dnetwork,dhosts, dmacs, dips)
> {
>
> insert_lines:
> "$(doptions)
> $(dnetwork)";
> "host $(dhosts) { $(const.n) $(const.t) hardware ethernet
> $($(dmacs)[$(dhosts)]); $(const.n) $(const.t) fixed-address
> $($(dips)$(dhosts)]); $(const.n) }";
>
> }
>
>
>
> my output dhcpd.conf generated:
>
>
> ddns-update-style none;
> log-facility local7;
>
>
> shared-network home
> {
> subnet 192.168.50.0 netmask 255.255.255.0 {
> option domain-name "icebox.lan";
> option domain-name-servers 192.168.50.254, 192.168.50.1;
> option routers 192.168.50.254;
> default-lease-time 600;
> max-lease-time 7200;
> }
>
> subnet 10.0.0.0 netmask 255.255.255.0 {
> option domain-name "blackhole.lan";
> option domain-name-servers 10.0.0.1;
> option routers 10.0.0.1;
> range 10.0.0.10 10.0.0.250;
> default-lease-time 600;
> max-lease-time 7200;
> }
> }
>
> host lg-wifi {
> hardware ethernet 00:26:4d:a5:d3:68;
> fixed-address 192.168.50.31;
> }
> host livebox {
> hardware ethernet e8:be:81:2c:27:59;
> fixed-address 192.168.50.1;
> host vaio {
> hardware ethernet 4c:0f:6e:d4:c2:29;
> fixed-address 192.168.50.20;
> host goldorak {
> hardware ethernet 00:27:0e:07:61:a0;
> fixed-address 192.168.50.254;
> host ps3 {
> hardware ethernet a8:e3:ee:02:dc:58;
> fixed-address 192.168.50.18;
> host wii {
> hardware ethernet 00:19:1d:fd:55:b0;
> fixed-address 192.168.50.25;
> host dell {
> hardware ethernet 00:24:d6:87:18:80;
> fixed-address 192.168.50.50;
> host mp620 {
> hardware ethernet 00:1e:8f:79:ac:e9;
> fixed-address 192.168.50.40;
> host dell-eth {
> hardware ethernet 00:26:b9:d2:ce:aa;
> fixed-address 192.168.50.51;
> host aziz {
> hardware ethernet 50:e5:49:5b:e2:be;
> fixed-address 192.168.50.10;
> host htc {
> hardware ethernet 7c:61:93:8d:93:b8;
> fixed-address 192.168.50.19;
> host lg {
> hardware ethernet e8:5b:5b:c1:17:86;
> fixed-address 192.168.50.30;
>
>
> As you see, the first host entry is ok:
>
>
> host lg-wifi {
> hardware ethernet 00:26:4d:a5:d3:68;
> fixed-address 192.168.50.31;
> }
>
>
> But the next not:
>
>
> host livebox {
> hardware ethernet e8:be:81:2c:27:59;
> fixed-address 192.168.50.1;
>
> missing the last line with " }". I don't understand why...
> And when i change the insert line, insert space for example, or changing
> $(const.n) or $(const.t) with the real "enter" or "tab" sometime the line is
> ok !! ...
>
> My cfengine version: 3.2.1
> Official package for ubuntu 11.10 from cfengine website.
>
> _______________________________________________
> Help-cfengine mailing list
> [email protected]
> https://cfengine.org/mailman/listinfo/help-cfengine
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