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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2017-10-11 09:40:00 -0700
committerGitHub <noreply@github.com>2017-10-11 09:40:00 -0700
commit94656ef680c235f8777d48528c314357673d255c (patch)
tree158897c6f1372ec4a7f00d9771d8bb3569217c5c /playbooks/common/openshift-etcd/embedded2external.yml
parent7b5cc97271ae834b9f2e64ec2b17f4ea3208017f (diff)
parent49436b4222a10a53a90686a3b051b99b24f799f8 (diff)
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Merge pull request #5672 from ingvagabund/migrate-embedded-etcd
Automatic merge from submit-queue. Migrate embedded etcd to external etcd Trello card: https://trello.com/c/9fnBfkT5/528-migrate-embedded-etcd-hosts-to-external-process?menu=filter&filter=label:committed-3.7 Tested on: - [x] embedded etcd -> external rpm etcd - [x] embedded etcd -> external docker etcd One needs to set the `openshift_image_tag` before running the migration to containerized docker etcd.
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diff --git a/playbooks/common/openshift-etcd/embedded2external.yml b/playbooks/common/openshift-etcd/embedded2external.yml
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+---
+- name: Pre-migrate checks
+ hosts: localhost
+ tasks:
+ # Check there is only one etcd host
+ - assert:
+ that: groups.oo_etcd_to_config | default([]) | length == 1
+ msg: "[etcd] group must contain only one host"
+ # Check there is only one master
+ - assert:
+ that: groups.oo_masters_to_config | default([]) | length == 1
+ msg: "[master] group must contain only one host"
+
+# 1. stop a master
+- name: Prepare masters for etcd data migration
+ hosts: oo_first_master
+ roles:
+ - role: openshift_facts
+ tasks:
+ - name: Check the master API is ready
+ include_role:
+ name: openshift_master
+ tasks_from: check_master_api_is_ready
+ - set_fact:
+ master_service: "{{ openshift.common.service_type + '-master' }}"
+ embedded_etcd_backup_suffix: "{{ lookup('pipe', 'date +%Y%m%d%H%M%S') }}"
+ - debug:
+ msg: "master service name: {{ master_service }}"
+ - name: Stop master
+ service:
+ name: "{{ master_service }}"
+ state: stopped
+ # 2. backup embedded etcd
+ # Can't use with_items with include_role: https://github.com/ansible/ansible/issues/21285
+ - include_role:
+ name: etcd
+ tasks_from: backup
+ vars:
+ r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+ r_etcd_common_backup_tag: pre-migrate
+ r_etcd_common_embedded_etcd: "{{ true }}"
+ r_etcd_common_backup_sufix_name: "{{ embedded_etcd_backup_suffix }}"
+
+ - include_role:
+ name: etcd
+ tasks_from: backup.archive
+ vars:
+ r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+ r_etcd_common_backup_tag: pre-migrate
+ r_etcd_common_embedded_etcd: "{{ true }}"
+ r_etcd_common_backup_sufix_name: "{{ embedded_etcd_backup_suffix }}"
+
+# 3. deploy certificates (for etcd and master)
+- include: ca.yml
+
+- include: server_certificates.yml
+
+- name: Backup etcd client certificates for master host
+ hosts: oo_first_master
+ tasks:
+ - include_role:
+ name: etcd
+ tasks_from: backup_master_etcd_certificates
+
+- name: Redeploy master etcd certificates
+ include: master_etcd_certificates.yml
+ vars:
+ etcd_certificates_redeploy: "{{ true }}"
+
+# 4. deploy external etcd
+- include: ../openshift-etcd/config.yml
+
+# 5. stop external etcd
+- name: Cleanse etcd
+ hosts: oo_etcd_to_config[0]
+ gather_facts: no
+ pre_tasks:
+ - include_role:
+ name: etcd
+ tasks_from: disable_etcd
+ vars:
+ r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+ - include_role:
+ name: etcd
+ tasks_from: clean_data
+ vars:
+ r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+
+# 6. copy the embedded etcd backup to the external host
+# TODO(jchaloup): if the etcd and first master are on the same host, just copy the directory
+- name: Copy embedded etcd backup to the external host
+ hosts: localhost
+ tasks:
+ - name: Create local temp directory for syncing etcd backup
+ local_action: command mktemp -d /tmp/etcd_backup-XXXXXXX
+ register: g_etcd_client_mktemp
+ changed_when: False
+ become: no
+
+ - include_role:
+ name: etcd
+ tasks_from: backup.fetch
+ vars:
+ r_etcd_common_etcd_runtime: "{{ hostvars[groups.oo_first_master.0].openshift.common.etcd_runtime }}"
+ etcd_backup_sync_directory: "{{ g_etcd_client_mktemp.stdout }}"
+ r_etcd_common_backup_tag: pre-migrate
+ r_etcd_common_embedded_etcd: "{{ true }}"
+ r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
+ delegate_to: "{{ groups.oo_first_master[0] }}"
+
+ - include_role:
+ name: etcd
+ tasks_from: backup.copy
+ vars:
+ r_etcd_common_etcd_runtime: "{{ hostvars[groups.oo_etcd_to_config.0].openshift.common.etcd_runtime }}"
+ etcd_backup_sync_directory: "{{ g_etcd_client_mktemp.stdout }}"
+ r_etcd_common_backup_tag: pre-migrate
+ r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
+ delegate_to: "{{ groups.oo_etcd_to_config[0] }}"
+
+ - debug:
+ msg: "etcd_backup_dest_directory: {{ g_etcd_client_mktemp.stdout }}"
+
+ - name: Delete temporary directory
+ local_action: file path="{{ g_etcd_client_mktemp.stdout }}" state=absent
+ changed_when: False
+ become: no
+
+# 7. force new cluster from the backup
+- name: Force new etcd cluster
+ hosts: oo_etcd_to_config[0]
+ tasks:
+ - include_role:
+ name: etcd
+ tasks_from: backup.unarchive
+ vars:
+ r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+ r_etcd_common_backup_tag: pre-migrate
+ r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
+
+ - include_role:
+ name: etcd
+ tasks_from: backup.force_new_cluster
+ vars:
+ r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+ r_etcd_common_backup_tag: pre-migrate
+ r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
+ etcd_peer: "{{ openshift.common.ip }}"
+ etcd_url_scheme: "https"
+ etcd_peer_url_scheme: "https"
+
+# 8. re-configure master to use the external etcd
+- name: Configure master to use external etcd
+ hosts: oo_first_master
+ tasks:
+ - include_role:
+ name: openshift_master
+ tasks_from: configure_external_etcd
+ vars:
+ etcd_peer_url_scheme: "https"
+ etcd_ip: "{{ openshift.common.ip }}"
+ etcd_peer_port: 2379
+
+ # 9. start the master
+ - name: Start master
+ service:
+ name: "{{ master_service }}"
+ state: started
+ register: service_status
+ until: service_status.state is defined and service_status.state == "started"
+ retries: 5
+ delay: 10