How to update host variables

[Peter Mooshammer]

Hi there,

I do the following on gce:

- name: Launch instances

  gce:

    instance_names: abc

    network: dfe

    machine_type: "{{ machine_type }}"

    image: "{{ image }}"

    zone: "{{ zone }}"

    tags: test

  register: gce

- name: run python script to make ip static

  script: python script that may or may not change the ip

  register: res

  failed_when: "res.rc == 1"

  changed_when: "res.rc == 0"

  with_items: gce.instance_data

- name: Add instance to local host group

  local_action: lineinfile dest=hosts insertafter="\[gce\]" line="{{ item.public_ip }} ansible_ssh_private_key_file=~/.ssh/google_compute_engine" state=present

  with_items: gce.instance_data

However, the public_ip may have changed so how can I update it before I try to add the item to the "hosts" file?

thanks

Peter 

[James Martin]

Have you looked into using the GCE dynamic inventory?

http://docs.ansible.com/guide_gce.html#gce-dynamic-inventory

[Peter Mooshammer]

On Sunday, January 18, 2015 at 4:57:39 PM UTC-8, James Martin wrote:

Have you looked into using the GCE dynamic inventory?

http://docs.ansible.com/guide_gce.html#gce-dynamic-inventory

I wanted to write a play that sets up and provisions a node in one sweep, so I thought add_host is necessary (In the example I showed the lineinfile, which isn't really necessary. 

But this is also a more general question, How can I update host information.

thanks

Peter

[Dag Wieers]

Simply run the "setup" module again, eg:

- name: Update host facts
action: setup

This will only work if the changes have been activated.

--
Dag

[Peter Mooshammer]

Hello Dag,

thank you for your input. I added the step you mentioned to my role. But it will not update the IP of the instance and therefore the next step (ssh) times out. 

Note: although there are loops, I only run with 1 instance 

thanks and any other idea would reatly appreciated

Peter

- name: Launch instances

  gce:

    instance_names: abc

    network: dfe

    machine_type: "{{ machine_type }}"

    image: "{{ image }}"

    zone: "{{ zone }}"

    tags: test

  register: gce

- name: run python script to make ip static

  script: python script that may or may not change the ip

  register: res

  failed_when: "res.rc == 1"

  changed_when: "res.rc == 0"

  with_items: gce.instance_data

- name: Update host facts

  action: setup

- name: Wait for SSH to come up

  wait_for: host={{ item.public_ip }} port=22 delay=10 timeout=60

  with_items: gce.instance_data