1 files changed, 169 insertions, 0 deletions
diff --git a/playbooks/openshift-etcd/private/migrate.yml b/playbooks/openshift-etcd/private/migrate.yml
new file mode 100644
index 000000000..31362f2f6
--- /dev/null
+++ b/playbooks/openshift-etcd/private/migrate.yml
@@ -0,0 +1,169 @@
+---
+- name: Check if the master has embedded etcd
+  hosts: localhost
+  connection: local
+  become: no
+  gather_facts: no
+  tags:
+  - always
+  tasks:
+  - fail:
+      msg: "Migration of an embedded etcd is not supported. Please, migrate the embedded etcd into an external etcd first."
+    when:
+    - groups.oo_etcd_to_config | default([]) | length == 0
+
+- name: Run pre-checks
+  hosts: oo_etcd_to_migrate
+  tasks:
+  - include_role:
+      name: etcd
+      tasks_from: migrate.pre_check
+    vars:
+      r_etcd_common_embedded_etcd: "{{ groups.oo_etcd_to_config | default([]) | length == 0 }}"
+      etcd_peer: "{{ ansible_default_ipv4.address }}"
+
+# TODO: This will be different for release-3.6 branch
+- name: Prepare masters for etcd data migration
+  hosts: oo_masters_to_config
+  tasks:
+  - set_fact:
+      master_services:
+      - "{{ openshift.common.service_type + '-master-controllers' }}"
+      - "{{ openshift.common.service_type + '-master-api' }}"
+  - debug:
+      msg: "master service name: {{ master_services }}"
+  - name: Stop masters
+    service:
+      name: "{{ item }}"
+      state: stopped
+    with_items: "{{ master_services }}"
+
+- name: Backup v2 data
+  hosts: oo_etcd_to_migrate
+  gather_facts: no
+  roles:
+  - role: openshift_facts
+  post_tasks:
+  - include_role:
+      name: etcd
+      tasks_from: backup
+    vars:
+      r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+      r_etcd_common_backup_tag: pre-migration
+      r_etcd_common_embedded_etcd: "{{ groups.oo_etcd_to_config | default([]) | length == 0 }}"
+      r_etcd_common_backup_sufix_name: "{{ lookup('pipe', 'date +%Y%m%d%H%M%S') }}"
+
+- name: Gate on etcd backup
+  hosts: localhost
+  connection: local
+  become: no
+  tasks:
+  - set_fact:
+      etcd_backup_completed: "{{ hostvars
+                                 | oo_select_keys(groups.oo_etcd_to_migrate)
+                                 | oo_collect('inventory_hostname', {'r_etcd_common_backup_complete': true}) }}"
+  - set_fact:
+      etcd_backup_failed: "{{ groups.oo_etcd_to_migrate | difference(etcd_backup_completed) | list }}"
+  - fail:
+      msg: "Migration cannot continue. The following hosts did not complete etcd backup: {{ etcd_backup_failed | join(',') }}"
+    when:
+    - etcd_backup_failed | length > 0
+
+- name: Stop etcd
+  hosts: oo_etcd_to_migrate
+  gather_facts: no
+  pre_tasks:
+  - include_role:
+      name: etcd
+      tasks_from: disable_etcd
+    vars:
+      r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+
+- name: Migrate data on first etcd
+  hosts: oo_etcd_to_migrate[0]
+  gather_facts: no
+  tasks:
+  - include_role:
+      name: etcd
+      tasks_from: migrate
+    vars:
+      r_etcd_common_embedded_etcd: "{{ groups.oo_etcd_to_config | default([]) | length == 0 }}"
+      etcd_peer: "{{ openshift.common.ip }}"
+      etcd_url_scheme: "https"
+      etcd_peer_url_scheme: "https"
+
+- name: Clean data stores on remaining etcd hosts
+  hosts: oo_etcd_to_migrate[1:]
+  gather_facts: no
+  tasks:
+  - include_role:
+      name: etcd
+      tasks_from: clean_data
+    vars:
+      r_etcd_common_embedded_etcd: "{{ groups.oo_etcd_to_config | default([]) | length == 0 }}"
+      etcd_peer: "{{ openshift.common.ip }}"
+      etcd_url_scheme: "https"
+      etcd_peer_url_scheme: "https"
+  - name: Add etcd hosts
+    delegate_to: localhost
+    add_host:
+      name: "{{ item }}"
+      groups: oo_new_etcd_to_config
+      ansible_ssh_user: "{{ g_ssh_user | default(omit) }}"
+      ansible_become: "{{ g_sudo | default(omit) }}"
+    with_items: "{{ groups.oo_etcd_to_migrate[1:] | default([]) }}"
+    changed_when: no
+  - name: Set success
+    set_fact:
+      r_etcd_migrate_success: true
+
+- include: ./scaleup.yml
+
+- name: Gate on etcd migration
+  hosts: oo_masters_to_config
+  gather_facts: no
+  tasks:
+  - set_fact:
+      etcd_migration_completed: "{{ hostvars
+                                 | oo_select_keys(groups.oo_etcd_to_migrate)
+                                 | oo_collect('inventory_hostname', {'r_etcd_migrate_success': true}) }}"
+  - set_fact:
+      etcd_migration_failed: "{{ groups.oo_etcd_to_migrate | difference(etcd_migration_completed) | list }}"
+
+- name: Add TTLs on the first master
+  hosts: oo_first_master[0]
+  tasks:
+  - include_role:
+      name: etcd
+      tasks_from: migrate.add_ttls
+    vars:
+      etcd_peer: "{{ hostvars[groups.oo_etcd_to_migrate.0].openshift.common.ip }}"
+      etcd_url_scheme: "https"
+      etcd_peer_url_scheme: "https"
+    when: etcd_migration_failed | length == 0
+
+- name: Configure masters if etcd data migration is succesfull
+  hosts: oo_masters_to_config
+  tasks:
+  - include_role:
+      name: etcd
+      tasks_from: migrate.configure_master
+    when: etcd_migration_failed | length == 0
+  - debug:
+      msg: "Skipping master re-configuration since migration failed."
+    when:
+    - etcd_migration_failed | length > 0
+  - name: Start master services
+    service:
+      name: "{{ item }}"
+      state: started
+    register: service_status
+    # Sometimes the master-api, resp. master-controllers fails to start for the first time
+    until: service_status.state is defined and service_status.state == "started"
+    retries: 5
+    delay: 10
+    with_items: "{{ master_services[::-1] }}"
+  - fail:
+      msg: "Migration failed. The following hosts were not properly migrated: {{ etcd_migration_failed | join(',') }}"
+    when:
+    - etcd_migration_failed | length > 0