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author | OpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com> | 2017-10-11 09:40:00 -0700 |
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committer | GitHub <noreply@github.com> | 2017-10-11 09:40:00 -0700 |
commit | 94656ef680c235f8777d48528c314357673d255c (patch) | |
tree | 158897c6f1372ec4a7f00d9771d8bb3569217c5c /playbooks/common/openshift-etcd/embedded2external.yml | |
parent | 7b5cc97271ae834b9f2e64ec2b17f4ea3208017f (diff) | |
parent | 49436b4222a10a53a90686a3b051b99b24f799f8 (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.
Diffstat (limited to 'playbooks/common/openshift-etcd/embedded2external.yml')
-rw-r--r-- | playbooks/common/openshift-etcd/embedded2external.yml | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/playbooks/common/openshift-etcd/embedded2external.yml b/playbooks/common/openshift-etcd/embedded2external.yml new file mode 100644 index 000000000..9264f3c32 --- /dev/null +++ b/playbooks/common/openshift-etcd/embedded2external.yml @@ -0,0 +1,172 @@ +--- +- 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 |