1 feat: 重构基础设施架构并完善Consul集群配置

2
     3	主要变更:
     4	- 重构Terraform/OpenTofu目录结构，统一迁移至infrastructure/opentofu
     5	- 添加"7天创造世界"文档，记录基础设施建设演进逻辑
     6	- 更新Consul集群配置管理经验，添加实际案例和解决方案
     7	- 修正README中的Sticky Note，反映Consul集群健康状态
     8	- 添加Ansible部署配置和inventory文件
     9	- 完善项目文档结构，添加各组件配置指南
    10
    11	技术架构演进:
    12	- 第1天: Tailscale网络连接基础 ✅
    13	- 第2天: Ansible分布式控制 ✅
    14	- 第3天: Nomad服务感知与任务调度 ✅
    15	- 第4天: Consul配置集中管理 ✅
    16	- 第5天: OpenTofu状态一致性 ✅
    17	- 第6天: Vault密钥管理 ⏳
    18	- 第7天: Waypoint应用部署 ⏳

deployment/ansible/playbooks/install/install-nomad-direct-download.yml

@@ -0,0 +1,131 @@
+---
+- name: Install Nomad by direct download from HashiCorp
+  hosts: all
+  become: yes
+  vars:
+    nomad_user: "nomad"
+    nomad_group: "nomad"
+    nomad_home: "/opt/nomad"
+    nomad_data_dir: "/opt/nomad/data"
+    nomad_config_dir: "/etc/nomad.d"
+    nomad_datacenter: "dc1"
+    nomad_region: "global"
+    nomad_server_addresses:
+      - "100.116.158.95:4647"  # semaphore server address
+
+  tasks:
+    - name: Create nomad user
+      user:
+        name: "{{ nomad_user }}"
+        group: "{{ nomad_group }}"
+        system: yes
+        shell: /bin/false
+        home: "{{ nomad_home }}"
+        create_home: yes
+
+    - name: Create nomad directories
+      file:
+        path: "{{ item }}"
+        state: directory
+        owner: "{{ nomad_user }}"
+        group: "{{ nomad_group }}"
+        mode: '0755'
+      loop:
+        - "{{ nomad_home }}"
+        - "{{ nomad_data_dir }}"
+        - "{{ nomad_config_dir }}"
+        - /var/log/nomad
+
+    - name: Install unzip package
+      apt:
+        name: unzip
+        state: present
+        update_cache: yes
+
+    - name: Download Nomad binary
+      get_url:
+        url: "{{ nomad_url }}"
+        dest: "/tmp/nomad_{{ nomad_version }}_linux_amd64.zip"
+        mode: '0644'
+        timeout: 300
+
+    - name: Extract Nomad binary
+      unarchive:
+        src: "/tmp/nomad_{{ nomad_version }}_linux_amd64.zip"
+        dest: /tmp
+        remote_src: yes
+
+    - name: Copy Nomad binary to /usr/local/bin
+      copy:
+        src: /tmp/nomad
+        dest: /usr/local/bin/nomad
+        mode: '0755'
+        owner: root
+        group: root
+        remote_src: yes
+
+    - name: Create Nomad client configuration
+      template:
+        src: templates/nomad-client.hcl.j2
+        dest: "{{ nomad_config_dir }}/nomad.hcl"
+        owner: "{{ nomad_user }}"
+        group: "{{ nomad_group }}"
+        mode: '0640'
+
+    - name: Create Nomad systemd service
+      copy:
+        content: |
+          [Unit]
+          Description=Nomad
+          Documentation=https://www.nomadproject.io/
+          Requires=network-online.target
+          After=network-online.target
+          ConditionFileNotEmpty={{ nomad_config_dir }}/nomad.hcl
+
+          [Service]
+          Type=notify
+          User={{ nomad_user }}
+          Group={{ nomad_group }}
+          ExecStart=/usr/local/bin/nomad agent -config={{ nomad_config_dir }}
+          ExecReload=/bin/kill -HUP $MAINPID
+          KillMode=process
+          Restart=on-failure
+          LimitNOFILE=65536
+
+          [Install]
+          WantedBy=multi-user.target
+        dest: /etc/systemd/system/nomad.service
+        mode: '0644'
+
+    - name: Reload systemd daemon
+      systemd:
+        daemon_reload: yes
+
+    - name: Enable and start Nomad service
+      systemd:
+        name: nomad
+        enabled: yes
+        state: started
+
+    - name: Wait for Nomad to be ready
+      wait_for:
+        port: 4646
+        host: localhost
+        delay: 5
+        timeout: 60
+
+    - name: Verify Nomad installation
+      command: /usr/local/bin/nomad version
+      register: nomad_version_output
+
+    - name: Display Nomad version
+      debug:
+        msg: "{{ nomad_version_output.stdout }}"
+
+    - name: Clean up downloaded files
+      file:
+        path: "{{ item }}"
+        state: absent
+      loop:
+        - "/tmp/nomad_{{ nomad_version }}_linux_amd64.zip"
+        - /tmp/nomad