Merge pull request #3043 from jkhelil/scaleup_etcd

Add etcd scaleup playbook

playbooks/aws/openshift-cluster/cluster_hosts.yml

@@ -4,6 +4,8 @@ g_all_hosts: "{{ groups['tag_clusterid_' ~ cluster_id] | default([])
 
 g_etcd_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type_etcd'] | default([])) }}"
 
+g_new_etcd_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type_new_etcd'] | default([])) }}"
+
 g_lb_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type_lb'] | default([])) }}"
 
 g_nfs_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type_nfs'] | default([])) }}"

playbooks/byo/openshift-cluster/cluster_hosts.yml

@@ -1,6 +1,8 @@
 ---
 g_etcd_hosts: "{{ groups.etcd | default([]) }}"
 
+g_new_etcd_hosts: "{{ groups.new_etcd | default([]) }}"
+
 g_lb_hosts: "{{ groups.lb | default([]) }}"
 
 g_master_hosts: "{{ groups.masters | default([]) }}"
@@ -18,7 +20,7 @@ g_glusterfs_hosts: "{{ groups.glusterfs | default([]) }}"
 g_glusterfs_registry_hosts: "{{ groups.glusterfs_registry | default(g_glusterfs_hosts) }}"
 
 g_all_hosts: "{{ g_master_hosts | union(g_node_hosts) | union(g_etcd_hosts)
-                 | union(g_lb_hosts) | union(g_nfs_hosts)
+                 | union(g_new_etcd_hosts) | union(g_lb_hosts) | union(g_nfs_hosts)
                  | union(g_new_node_hosts)| union(g_new_master_hosts)
                  | union(g_glusterfs_hosts) | union(g_glusterfs_registry_hosts)
                  | default([]) }}"

playbooks/byo/openshift-etcd/scaleup.yml

@@ -0,0 +1,22 @@
+---
+- hosts: localhost
+  connection: local
+  become: no
+  gather_facts: no
+  tasks:
+  - include_vars: ../../byo/openshift-cluster/cluster_hosts.yml
+  - add_host:
+      name: "{{ item }}"
+      groups: l_oo_all_hosts
+    with_items: "{{ g_all_hosts }}"
+
+- hosts: l_oo_all_hosts
+  gather_facts: no
+  tasks:
+  - include_vars: ../../byo/openshift-cluster/cluster_hosts.yml
+
+- include: ../../common/openshift-cluster/evaluate_groups.yml
+- include: ../../common/openshift-etcd/scaleup.yml
+  vars:
+    openshift_cluster_id: "{{ cluster_id | default('default') }}"
+    openshift_deployment_type: "{{ deployment_type }}"

playbooks/common/openshift-cluster/evaluate_groups.yml

@@ -5,10 +5,10 @@
   become: no
   gather_facts: no
   tasks:
-  - name: Evaluate groups - g_etcd_hosts required
+  - name: Evaluate groups - g_etcd_hosts or g_new_etcd_hosts required
     fail:
-      msg: This playbook requires g_etcd_hosts to be set
-    when: g_etcd_hosts is not defined
+      msg: This playbook requires g_etcd_hosts or g_new_etcd_hosts to be set
+    when: "{{ g_etcd_hosts is not defined and g_new_etcd_hosts is not defined}}"
 
   - name: Evaluate groups - g_master_hosts or g_new_master_hosts required
     fail:
@@ -67,6 +67,15 @@
     when: g_master_hosts|length > 0
     changed_when: no
 
+  - name: Evaluate oo_new_etcd_to_config
+    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: "{{ g_new_etcd_hosts | default([]) }}"
+    changed_when: no
+
   - name: Evaluate oo_masters_to_config
     add_host:
       name: "{{ item }}"

playbooks/common/openshift-etcd/scaleup.yml

@@ -0,0 +1,30 @@
+---
+- name: Configure etcd
+  hosts: oo_new_etcd_to_config
+  serial: 1
+  any_errors_fatal: true
+  vars:
+    etcd_ca_host: "{{ groups.oo_etcd_to_config.0 }}"
+  pre_tasks:
+  - name: Add new etcd members to cluster
+    command: >
+      /usr/bin/etcdctl  --cert-file {{ etcd_peer_cert_file }}
+                        --key-file {{ etcd_peer_key_file }}
+                        --ca-file {{ etcd_peer_ca_file }}
+                        -C {{ etcd_peer_url_scheme }}://{{ etcd_ca_host }}:{{ etcd_client_port }}
+                        member add {{ inventory_hostname }} {{ etcd_peer_url_scheme }}://{{ hostvars[inventory_hostname]['ansible_default_ipv4']['address'] }}:{{ etcd_peer_port }}
+    delegate_to: "{{ etcd_ca_host }}"
+    register: etcd_add_check
+  roles:
+  - role: openshift_etcd
+    when: etcd_add_check.rc == 0
+    etcd_peers: "{{ groups.oo_etcd_to_config | union(groups.oo_new_etcd_to_config)| default([], true) }}"
+    etcd_ca_host: "{{ groups.oo_etcd_to_config.0 }}"
+    etcd_certificates_etcd_hosts: "{{ groups.oo_etcd_to_config | default([], true) }}"
+    etcd_initial_cluster_state: "existing"
+    initial_etcd_cluster: "{{ etcd_add_check.stdout_lines[3] | regex_replace('ETCD_INITIAL_CLUSTER=','') }}"
+    etcd_hostname: "{{ inventory_hostname }}"
+    etcd_ca_setup: False
+    r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
+  - role: nickhammond.logrotate
+    when: etcd_add_check.rc == 0

playbooks/gce/openshift-cluster/cluster_hosts.yml

@@ -4,6 +4,8 @@ g_all_hosts: "{{ groups['tag_clusterid-' ~ cluster_id] | default([])
 
 g_etcd_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-etcd'] | default([])) }}"
 
+g_new_etcd_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-new_etcd'] | default([])) }}"
+
 g_lb_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-lb'] | default([])) }}"
 
 g_nfs_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-nfs'] | default([])) }}"

playbooks/libvirt/openshift-cluster/cluster_hosts.yml

@@ -4,6 +4,8 @@ g_all_hosts: "{{ groups['tag_clusterid-' ~ cluster_id] | default([])
 
 g_etcd_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-etcd'] | default([])) }}"
 
+g_new_etcd_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-new_etcd'] | default([])) }}"
+
 g_lb_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-lb'] | default([])) }}"
 
 g_nfs_hosts: "{{ g_all_hosts | intersect(groups['tag_host-type-nfs'] | default([])) }}"

playbooks/openstack/openshift-cluster/cluster_hosts.yml

@@ -4,6 +4,8 @@ g_all_hosts: "{{ groups['meta-clusterid_' ~ cluster_id] | default([])
 
 g_etcd_hosts: "{{ g_all_hosts | intersect(groups['meta-host-type_etcd'] | default([])) }}"
 
+g_new_etcd_hosts: "{{ g_all_hosts | intersect(groups['meta-host-type_new_etcd'] | default([])) }}"
+
 g_lb_hosts: "{{ g_all_hosts | intersect(groups['meta-host-type_lb'] | default([])) }}"
 
 g_nfs_hosts: "{{ g_all_hosts | intersect(groups['meta-host-type_nfs'] | default([])) }}"

roles/etcd/templates/etcd.conf.j2

@@ -8,12 +8,8 @@
 {% endfor -%}
 {% endmacro -%}
 
-{% if (etcd_peers | default([]) | length > 1) or (etcd_is_thirdparty) %}
 ETCD_NAME={{ etcd_hostname }}
 ETCD_LISTEN_PEER_URLS={{ etcd_listen_peer_urls }}
-{% else %}
-ETCD_NAME=default
-{% endif %}
 ETCD_DATA_DIR={{ etcd_data_dir }}
 #ETCD_SNAPSHOT_COUNTER=10000
 ETCD_HEARTBEAT_INTERVAL=500
@@ -23,20 +19,20 @@ ETCD_LISTEN_CLIENT_URLS={{ etcd_listen_client_urls }}
 #ETCD_MAX_WALS=5
 #ETCD_CORS=
 
-{% if etcd_is_thirdparty %}
+
 #[cluster]
 ETCD_INITIAL_ADVERTISE_PEER_URLS={{ etcd_initial_advertise_peer_urls }}
-
+{% if etcd_is_thirdparty %}
 # TODO: This needs to be altered to support the correct etcd instances
 ETCD_INITIAL_CLUSTER={{ etcd_hostname}}={{ etcd_initial_advertise_peer_urls }}
 ETCD_INITIAL_CLUSTER_STATE={{ etcd_initial_cluster_state }}
 ETCD_INITIAL_CLUSTER_TOKEN=thirdparty-etcd-cluster-1
-{% endif %}
-
-{% if etcd_peers | default([]) | length > 1 %}
-#[cluster]
-ETCD_INITIAL_ADVERTISE_PEER_URLS={{ etcd_initial_advertise_peer_urls }}
+{% else %}
+{% if initial_etcd_cluster is defined and initial_etcd_cluster %}
+ETCD_INITIAL_CLUSTER={{ initial_etcd_cluster }}
+{% else %}
 ETCD_INITIAL_CLUSTER={{ initial_cluster() }}
+{% endif %}
 ETCD_INITIAL_CLUSTER_STATE={{ etcd_initial_cluster_state }}
 ETCD_INITIAL_CLUSTER_TOKEN={{ etcd_initial_cluster_token }}
 #ETCD_DISCOVERY=

roles/etcd_server_certificates/meta/main.yml

@@ -14,3 +14,4 @@ galaxy_info:
   - system
 dependencies:
 - role: etcd_ca
+  when: (etcd_ca_setup | default(True) | bool)

roles/openshift_etcd_ca/meta/main.yml

@@ -15,3 +15,4 @@ galaxy_info:
 dependencies:
 - role: openshift_etcd_facts
 - role: etcd_ca
+  when: (etcd_ca_setup | default(True) | bool)