Ability to use a separated external DHCP server

[lautou]

No description provided.

[lautou]

@christianh814 can we merge this?
we added the possibility to use an external DHCP

[clnperez]

i'm interested in this as well. for now i just use the static flag since i have an external DHCP server. but how are you dealing with the dns entries? are you using a dhcp server but with a set of pre-allocated IPs you can ask the DHCP server to assign at node-creation?

[christianh814]

hey @lautou and @clnperez I'm no longer at Red Hat and I've given control over to @Prajyot-Parab

[Prajyot-Parab]

@clnperez I will take a look at this one, and do a test run to verify by tomorrow.

[Prajyot-Parab]

Error -

fatal: [x.x.x.x]: FAILED! => {"msg": "The conditional check 'not staticips and not externaldhcp' failed. The error was: error while evaluating conditional (not staticips and not externaldhcp): 'externaldhcp' is undefined. 'externaldhcp' is undefined\n\nThe error appears to be in '/root/ocp4-helpernode/tasks/set_facts_.yaml': line 19, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n- block:\n  - set_fact:\n    ^ here\n"}

diff --git a/vars/main.yml b/vars/main.yml
index f8da4f4..f315c03 100644
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -1,8 +1,9 @@
 ---
 ssh_gen_key: true
 ipi: false
 baremetal: true
 staticips: false
+externaldhcp: false

@lautou you need to define externaldhcp var in vars/main.yml