ansible-playbook 写arm版达梦7数据库的一键安装脚本

达梦官方提供镜像目前是dm8_x86 版本，因为众所周知的国产化方面的需求，需要在kylin v10机器上部署一个DM数据库以及其他使用数据库的服务，为了更便捷的交付需要把安装步骤都写入到ansible 脚本里，这里就单说下DM 的部署

DM7 数据库镜像build

先使用安装包在Arm宿主机上进行安装

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#创建安装目录
mkdir /dm7
#更改目录权限
chown dmdba.dinstall -R /dm7


#创建用户组
groupadd distall
#创建安装用户
useradd -g distall dmdba
#初始化用户密码
passwd dmdba

#dmdba用户的~/.bash_profile 里添加如下内容：

export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/dm7/bin"
export DM_HOME="/dm7"
export PATH=$DM_HOME/bin:$PATH:$HOME/bin

# 数据库安装
 ./DMInstall.bin -i

# 通过执行dminit文件初始化实例参数来创建实例
./dminit PATH=/dm7/data LOG_PATH=/dm7/data/DAMENG/DAMENG01.log LOG_PATH=/dm7/data/DAMENG/DAMENG02.log LOG_PATH=/dm7/data/DAMENG/DAMENG03.log EXTENT_SIZE=16 PAGE_SIZE=8 LOG_SIZE=500 CASE_SENSITIVE=Y DB_NAME=DAMENG INSTANCE_NAME=DMSERVER port_num=5236 SYSDBA_PWD=123456789012

# 创建数据库服务实例
./dm_service_installer.sh -t dmserver -i /dm7/data/DAMENG/dm.ini -p DMSERVER


# 启动数据库
./DmServiceDMSERVER start

构建镜像Dockerfile，把宿主机上安装二进制文件服务到镜像里

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FROM centos:centos8

COPY /dm7 /

WORKDIR /dm7

构建镜像 dm7:centos_kylin_arm64

安装脚本

ansible 安装入口 install.yaml

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  hosts: node_hosts
  gather_facts: false
  vars:
    ansible_python_interpreter: /usr/bin/python2

  tasks:

    # 加载所有镜像
    - name: load all images for dm, harbor etc.
      include_role:
        name: deploy
        tasks_from: 01.loadimages.yml
      when: (deploy_type is not defined) or (deploy_type == "loadimages")
      tags: [ "always" ]

    # 创建dm的namespace
    - name: Create namespace
      include_role:
        name: deploy
        tasks_from: 02.create_ns.yml
      when: (deploy_type is not defined) or (deploy_type == "create_namespace")
      tags: [ "always" ]

    # 部署 dm 数据库
    - name: Deploy DM
      include_role:
        name: deploy_rlstudio
        tasks_from: 03.dm.yml
      when: (deploy_type is not defined) or (deploy_type == "dm")
      tags: [ "always" ]

01.loadimages.yml

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- name: Load all images
  args:
    chdir: "{{ role_path }}/images/"
  shell: |
    echo "load all images"
    # 查找当前目录及其子目录下的所有 .tar 文件，并循环处理
    find . -type f -name "*.tar" | while read -r tar_file; do
        echo "Loading Docker image from: $tar_file"
        docker load -i "$tar_file"
        if [ $? -eq 0 ]; then
            echo "Successfully loaded: $tar_file"
        else
            echo "Failed to load: $tar_file"
        fi
    done

    echo "All .tar files have been processed."
  ignore_errors: True

01.create_ns.yml

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- name: Create dm namespace
  shell: "kubectl create namespace {{ dm7_namespace }} "
  ignore_errors: True

03.dm.yml

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- name: Label dm7 node | rlstudio/dataNode=dm
  delegate_to: "{{ inventory_hostname }}"
  shell: "{{ kubectl }} label --overwrite node {{ inventory_hostname }} rlstudio/dataNode=dm"
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"

- name: Ensure parent directory exists
  file:
    path: "{{ dm7_dir }}"
    state: directory
    mode: 0755
  become: yes
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"


- name: Deploy dm7 | copy persistent volume
  copy:
    src: "{{ role_path }}/files/dm7/data"
    dest: "{{ dm7_dir }}"
    mode: 0755
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  become: yes
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"

- name: chmod dm7 persistent volume | sudo chmod -R 777 /dm7/data
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"
  shell: |
    sudo chmod -R 777 /dm7/data

- name: Deploy dm7 | modify dm7.yaml (nodePort)
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  shell: "sed -i 's/nodePort:.*$/nodePort: {{ rlstudio_dm7_port }}/' {{ role_path }}/files/dm_dp/dm7_svc.yaml"
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"

- name: Deploy dm7 | modify dm7.yaml (pvc path)
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  shell: "sed -i 's#path:.*$#path: {{ dm7_dir }}#' {{ role_path }}/files/dm_dp/dm7_dp.yaml"
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"


- name: Check if PVC exists
  shell: "kubectl get pvc dm7-data-pvc -n dm --ignore-not-found"
  register: pvc_check
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"

- name: Apply PVC if it does not exist
  shell: "kubectl apply -f {{ role_path }}/files/dm_dp/dm7_pvc.yaml"
  when: pvc_check.stdout == ""
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"

- name: Deploy dm
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  shell: "kubectl apply -f {{ role_path }}/files/dm_dp/dm7_dp.yaml -n {{ dm7_namespace }}"
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"

- name: Check if dm7-nodeport Service exists and get details
  shell: "kubectl get service dm7-nodeport -n dm -o json --ignore-not-found"
  register: service_check
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"
  ignore_errors: yes

- name: Apply dm7-nodeport Service if it does not exist
  shell: "kubectl apply -f {{ role_path }}/files/dm_dp/dm7_svc.yaml"
  when: service_check.stdout | length == 0
  delegate_to: "{{ inventory_hostname }}"
  run_once: true
  vars:
    ansible_python_interpreter: "{{ custom_python_interpreter }}"


- name: Deploy dm7 | Check dm7 status
  block:
    - name: Check status dm7 is running
      shell: "{{ kubectl }} get pod -n dm --no-headers | awk '{print $3}'"
      register: shell_result
      retries: 40
      delay: 20
      until: shell_result.stdout == "Running"
      vars:
        ansible_python_interpreter: "{{ custom_python_interpreter }}"
  rescue:
    - name: Status of dm7 is not running
      fail:
        msg: "Please check dm7 status"
      vars:
        ansible_python_interpreter: "{{ custom_python_interpreter }}"

上面涉及k8s deployment 的部署文件

dm7_dp.yaml

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---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: dm7
  namespace: dm
spec:
  replicas: 1
  selector:
    matchLabels:
      app: apps.deployment-dm-dm7
  template:
    metadata:
      labels:
        app: apps.deployment-dm-dm7
    spec:
      containers:
      - name: container-0
        image: dm7:centos_kylin_arm64
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 5236
          name: 5236tcp31236
          protocol: TCP
        volumeMounts:
        - mountPath: /dm7/data
          name: dm7-data
      volumes:
      - name: dm7-data
        persistentVolumeClaim:
          claimName: dm7-data-pvc

dm7_pvc.yaml

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apiVersion: v1
kind: PersistentVolume
metadata:
  name: dm7-data-pv
  namespace: dm
spec:
  capacity:
    storage: 5Gi
  accessModes:
  - ReadWriteOnce
  hostPath:
    path: /dm7/data
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: dm7-data-pvc
  namespace: dm
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi

dm7_svc.yaml

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apiVersion: v1
kind: Service
metadata:
  name: dm7-nodeport
  namespace: dm
spec:
  type: NodePort
  selector:
    app: apps.deployment-dm-dm7
  ports:
  - name: 5236tcp31236
    port: 5236
    targetPort: 5236
    nodePort: 31236
    protocol: TCP

执行安装脚本

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ansible-playbook playbooks/install.yml -e deploy_type=dm

启动成功

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