Hi list, I posted a while back about a way to parallelize Openstack node creation. To recap, I have a role with the following task:
- name: Set up API connections for all Openstack nodes add_host: name: "os_api_{{ item }}" ansible_ssh_host: 127.0.0.1 groups: os_api ansible_connection: local oshost: "{{ item }}" with_items: cluster This gives me a bunch of API connections which I run in parallel in another role and task: - name: Launch cluster VM on Openstack nova_compute: name: "{{ os_username }}_{{ oshost }}" state: present login_username: "{{ os_username }}" login_tenant_name: "{{ os_tenant }}" login_password: "{{ os_password }}" image_id: "{{ os_image_id }}" key_name: "{{ os_username }}_controller_key" wait_for: 200 flavor_id: "{{ os_flavor_id }}" auth_url: "{{ os_url }}" user_data: "{{ lookup('template', '../templates/cloud-config.j2') }}" - name: Assign IP address to cluster VM quantum_floating_ip: state: present login_username: "{{ os_username }}" login_password: "{{ os_password }}" login_tenant_name: "{{ os_tenant }}" network_name: "{{ os_network_name }}" instance_name: "{{ os_username }}_{{ oshost }}" internal_network_name: "{{ os_internal_network_name }}" auth_url: "{{ os_url }}" register: quantum_info - name: Wait for cluster SSH to become available wait_for: port: 22 host: "{{ quantum_info.public_ip }}" timeout: 180 state: started - name: Retrieve cluster public SSH host key shell: "ssh-keyscan {{ quantum_info.public_ip }}" register: scanned_key Now I have a list of IPs for the configured hosts. I want to record their SSH host key, as captured by "scanned_key". If I add the following, will it safely serialize access to the local "known_hosts" file: - name: Set SSH known_hosts entry lineinfile: dest: ~/.ssh/known_hosts line: "{{ scanned_key.stdout }}" state: present regexp: "^{{ quantum_info.public_ip }} " delegate_to: localhost Is this the recommended way to do it? Thanks, -Kurt -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/ddf0c9b7-4210-457d-91ce-09a81ffac9a3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.