bugfix: fix grep command without -w option causing prefix matched whi…

…le adding one etcd member (#10291)

roles/etcd/tasks/configure.yml

@@ -130,7 +130,7 @@
     ETCDCTL_ENDPOINTS: "{{ etcd_events_access_addresses }}"
 
 - name: Configure | Check if member is in etcd cluster
-  shell: "{{ bin_dir }}/etcdctl member list | grep -q {{ etcd_access_address }}"
+  shell: "{{ bin_dir }}/etcdctl member list | grep -w -q {{ etcd_access_address }}"
   register: etcd_member_in_cluster
   ignore_errors: true  # noqa ignore-errors
   changed_when: false
@@ -146,7 +146,7 @@
     ETCDCTL_ENDPOINTS: "{{ etcd_access_addresses }}"
 
 - name: Configure | Check if member is in etcd-events cluster
-  shell: "{{ bin_dir }}/etcdctl member list | grep -q {{ etcd_access_address }}"
+  shell: "{{ bin_dir }}/etcdctl member list | grep -w -q {{ etcd_access_address }}"
   register: etcd_events_member_in_cluster
   ignore_errors: true  # noqa ignore-errors
   changed_when: false

roles/etcd/tasks/join_etcd-events_member.yml

@@ -26,7 +26,7 @@
       {%- endfor -%}
 
 - name: Join Member | Ensure member is in etcd-events cluster
-  shell: "set -o pipefail && {{ bin_dir }}/etcdctl member list | grep {{ etcd_events_access_address }} >/dev/null"
+  shell: "set -o pipefail && {{ bin_dir }}/etcdctl member list | grep -w {{ etcd_events_access_address }} >/dev/null"
   args:
     executable: /bin/bash
   register: etcd_events_member_in_cluster

roles/etcd/tasks/join_etcd_member.yml

@@ -27,7 +27,7 @@
       {%- endfor -%}
 
 - name: Join Member | Ensure member is in etcd cluster
-  shell: "set -o pipefail && {{ bin_dir }}/etcdctl member list | grep {{ etcd_access_address }} >/dev/null"
+  shell: "set -o pipefail && {{ bin_dir }}/etcdctl member list | grep -w {{ etcd_access_address }} >/dev/null"
   args:
     executable: /bin/bash
   register: etcd_member_in_cluster