Add ansible tags to select behaviour

playbook.yml

@@ -4,21 +4,40 @@
 
  - name: Configuring user environment
  include_tasks: tasks/setup_environment.yml
+ tags: [ always ]
 
  - name: Configure instance facts
  include_tasks: tasks/configure_instances.yml
  loop: "{{instances|dict2items}}"
  loop_control:
  loop_var: instance_item
+ tags: [ always ]
 
  - name: Configuring virtual tap interfaces
  include_tasks: tasks/setup_networking.yml
  loop: "{{instances|dict2items}}"
  loop_control:
  loop_var: instance_item
+ tags: [ create_interfaces, create_all ]
 
  - name: Create Firecracker instances
  include_tasks: tasks/create_instances.yml
  loop: "{{instances|dict2items}}"
  loop_control:
  loop_var: instance_item
+ tags: [ create, create_all ]
+
+ - name: Destroy Firecracker instances
+ include_tasks: tasks/destroy_instances.yml
+ loop: "{{instances|dict2items}}"
+ loop_control:
+ loop_var: instance_item
+ tags: [ never, destroy, destroy_all ]
+
+ - name: Destroy virtual tap interfaces
+ include_tasks: tasks/destroy_networking.yml
+ loop: "{{instances|dict2items}}"
+ loop_control:
+ loop_var: instance_item
+ tags: [ never, destroy_interfaces, destroy_all ]
+

tasks/configure_instances.yml

@@ -1,12 +1,15 @@
 - name: "{{instance_item.key}}: Prepare interface list"
  set_fact:
  interface_list: []
+ tags: [ always ]
 
 - name: "{{instance_item.key}}: Combine interface list"
  set_fact:
  interface_list: "{{ interface_list + [item|combine({'host_dev_name':'fc-'+((instance_item.key+'-'+item.iface_id) |hash('md5'))[0:8], 'guest_mac':('fc33'+((instance_item.key+'-'+item.iface_id) |hash('md5'))[0:8])|ansible.netcommon.hwaddr('linux') })] }}"
  loop: "{{instances[instance_item.key]['network_interfaces']}}"
+ tags: [ always ]
 
 - name: "{{instance_item.key}}: Merge interface list to instance"
  set_fact:
- instances: "{{ instances | combine({ instance_item.key: { 'network_interfaces': interface_list }},recursive=True) }}"
+ instances: "{{ instances | combine({ instance_item.key: { 'network_interfaces': interface_list }},recursive=True) }}"
+ tags: [ always ]

tasks/create_instances.yml

@@ -4,16 +4,19 @@
  state: started
  name: "firecracker-console@{{instance_item.key}}"
  scope: user
+ tags: [ create, create_all ]
 
 - name: "{{instance_item.key}}: Start Firecracker service"
  systemd:
  state: started
  name: "firecracker@{{instance_item.key}}"
  scope: user
+ tags: [ create, create_all ]
 
 - name: "{{instance_item.key}}: Set socket fact"
  set_fact:
  instance_socket: "{{firecracker_runpath}}/firecracker-{{instance_item.key}}.socket"
+ tags: [ create, create_all ]
 
 - name: "{{instance_item.key}}: Configuring Boot Source"
  uri:
@@ -25,6 +28,7 @@
  - 200
  - 204
  body_format: json
+ tags: [ create, create_all ]
 
 - name: "{{instance_item.key}}: Configuring Machine"
  uri:
@@ -37,6 +41,7 @@
  - 204
  body_format: json
  when: instance_item.value['machine_config'] is defined
+ tags: [ create, create_all ]
 
 - name: "{{instance_item.key}}: Configuring Networking"
  uri:
@@ -50,6 +55,7 @@
  body_format: json
  loop: "{{instance_item.value['network_interfaces']}}"
  when: instance_item.value['network_interfaces'] is defined
+ tags: [ create, create_all ]
 
 - name: "{{instance_item.key}}: Start instance"
  uri:
@@ -61,3 +67,4 @@
  - 200
  - 204
  body_format: json
+ tags: [ create, create_all ]

tasks/destroy_instances.yml

@@ -0,0 +1,14 @@
+---
+- name: "{{instance_item.key}}: Stop Firecracker service"
+ systemd:
+ state: stopped
+ name: "firecracker@{{instance_item.key}}"
+ scope: user
+ tags: [ destroy, destroy_all ]
+
+- name: "{{instance_item.key}}: Stop Firecracker console"
+ systemd:
+ state: stopped
+ name: "firecracker-console@{{instance_item.key}}"
+ scope: user
+ tags: [ destroy, destroy_all ]

tasks/destroy_networking.yml

@@ -0,0 +1,16 @@
+---
+- name: "{{instance_item.key}}: Set Tap interface down"
+ shell: "{{iputil_cmd}} link set dev {{item.host_dev_name}} up"
+ args:
+ removes: "/proc/sys/net/ipv4/conf/{{item.host_dev_name}}"
+ become: true
+ loop: "{{instance_item.value['network_interfaces']}}"
+ tags: [ destroy_interfaces, destroy_all ]
+
+- name: "{{instance_item.key}}: Delete Tap interface"
+ shell: "{{iputil_cmd}} link delete dev {{item.host_dev_name}}"
+ args:
+ removes: "/proc/sys/net/ipv4/conf/{{item.host_dev_name}}"
+ become: true
+ loop: "{{instance_item.value['network_interfaces']}}"
+ tags: [ destroy_interfaces, destroy_all ]

tasks/setup_environment.yml

@@ -4,20 +4,24 @@
  path: "{{ ansible_env.HOME }}/.config/systemd/user"
  state: directory
  recurse: yes
+ tags: [ always ]
 
 - name: Create Firecracker console service
  template:
  src: templates/firecracker-console-systemd.j2
  dest: "{{ ansible_env.HOME }}/.config/systemd/user/[email protected]"
  mode: '0644'
+ tags: [ always ]
 
 - name: Create Firecracker daemon service
  template:
  src: templates/firecracker-systemd.j2
  dest: "{{ ansible_env.HOME }}/.config/systemd/user/[email protected]"
  mode: '0644'
+ tags: [ always ]
 
 - name: Reload systemd user config
  systemd:
  daemon_reload: yes
  scope: user
+ tags: [ always ]

tasks/setup_networking.yml

@@ -3,14 +3,17 @@
  args:
  creates: "/proc/sys/net/ipv4/conf/{{item.host_dev_name}}"
  become: true
- loop: "{{instances[instance_item.key]['network_interfaces']}}"
+ loop: "{{instance_item.value['network_interfaces']}}"
+ tags: [ create_interfaces, create_all ]
 
 - name: "{{instance_item.key}}: Add Tap interface to bridge"
  shell: "{{iputil_cmd}} link set {{item.host_dev_name}} master {{bridge_interface}}"
  become: true
- loop: "{{instances[instance_item.key]['network_interfaces']}}"
+ loop: "{{instance_item.value['network_interfaces']}}"
+ tags: [ create_interfaces, create_all ]
 
 - name: "{{instance_item.key}}: Set Tap interface up"
  shell: "{{iputil_cmd}} link set dev {{item.host_dev_name}} up"
  become: true
- loop: "{{instances[instance_item.key]['network_interfaces']}}"
+ loop: "{{instance_item.value['network_interfaces']}}"
+ tags: [ create_interfaces, create_all ]