fix: set /etc/hosts entries for k8s_nodename

easzlab · Jun 22, 2023 · f7f581b · f7f581b
1 parent b3b6bb4
commit f7f581b
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Showing 3 changed files with 46 additions and 6 deletions.
diff --git a/playbooks/22.addnode.yml b/playbooks/22.addnode.yml
@@ -1,4 +1,15 @@
 # Note: this playbook can not run independently
+- hosts: "{{ NODE_TO_ADD }}"
+  tasks:
+  - name: 设置 k8s_nodename 在 master、node 节点 /etc/hosts 地址解析
+    lineinfile:
+      dest: /etc/hosts
+      state: present
+      regexp: "{{ K8S_NODENAME }} .* generated by kubeasz"
+      line: "{{ inventory_hostname }}    {{ K8S_NODENAME }} # generated by kubeasz"
+    delegate_to: "{{ item }}"
+    with_items: ["{{ groups.kube_master }}", "{{ groups.kube_node }}"]
+    when: "inventory_hostname != K8S_NODENAME"
 
 - hosts: "{{ NODE_TO_ADD }}" 
   roles:

diff --git a/playbooks/23.addmaster.yml b/playbooks/23.addmaster.yml
@@ -1,4 +1,15 @@
 # Note: this playbook cann't run independently
+- hosts: "{{ NODE_TO_ADD }}"
+  tasks:
+  - name: 设置 k8s_nodename 在 master、node 节点 /etc/hosts 地址解析
+    lineinfile:
+      dest: /etc/hosts
+      state: present
+      regexp: "{{ K8S_NODENAME }} .* generated by kubeasz"
+      line: "{{ inventory_hostname }}    {{ K8S_NODENAME }} # generated by kubeasz"
+    delegate_to: "{{ item }}"
+    with_items: ["{{ groups.kube_master }}", "{{ groups.kube_node }}"]
+    when: "inventory_hostname != K8S_NODENAME"
 
 - hosts: "{{ NODE_TO_ADD }}" 
   roles:

diff --git a/roles/prepare/tasks/main.yml b/roles/prepare/tasks/main.yml
@@ -42,12 +42,30 @@
     regexp: 'easzlab.io.local'
     line: "{{ ansible_env.SSH_CLIENT.split(' ')[0] }}    easzlab.io.local"
 
-- name: 设置 k8s_nodename 在 master、node 节点 /etc/hosts 地址解析
+# 设置节点名称{{ K8S_NODENAME }} /etc/hosts 解析
+# 1.先确保第一个主节点做好解析
+# 2.然后复制给集群所有节点
+- name: 设置 k8s_nodename 在 master[0] 节点 /etc/hosts 地址解析
   lineinfile:
     dest: /etc/hosts
     state: present
-    regexp: "{{ K8S_NODENAME }}"
-    line: "{{ inventory_hostname }}    {{ K8S_NODENAME }}"
-  delegate_to: "{{ item }}"
-  with_items: ["{{ groups.kube_master }}", "{{ groups.kube_node }}"]
-  when: "inventory_hostname != K8S_NODENAME"
+    regexp: "{{ K8S_NODENAME }} .* generated by kubeasz"
+    line: "{{ inventory_hostname }}    {{ K8S_NODENAME }} # generated by kubeasz"
+  delegate_to: "{{ groups.kube_master[0] }}"
+  when: "inventory_hostname != K8S_NODENAME"
+
+- name: 获取 master[0] 节点由kubeasz 创建的 /etc/hosts 地址解析
+  shell: 'grep "generated by kubeasz" /etc/hosts'
+  register: RESOLVE_K8S_NODENAME
+  delegate_to: "{{ groups.kube_master[0] }}"
+  run_once: true
+
+#- debug: var="RESOLVE_K8S_NODENAME.stdout"
+#  run_once: true
+
+- name: 设置 /etc/hosts 地址解析
+  blockinfile:
+    path: /etc/hosts
+    block: |
+      {{ RESOLVE_K8S_NODENAME.stdout }}
+  when: "inventory_hostname != groups.kube_master[0]"