|
Docker部署Always on集群SQL Server在2016年开始支持Linux。随着2017和2019版本的发布，它开始支持Linux和容器平台上的HA/DR、Kubernetes和大数据集群解决方案。 在本文中，我们将在3个节点的Docker容器上安装SQL Server 2019，并创建AlwaysOn可用性组。 我们的目标是使用单个配置文件快速准备好环境。因此，开发人员或测试团队可以快速执行诸如兼容性、连通性、代码功能等测试。 在本节中，我们将首先准备一个基于Ubuntu的映像，以便能够在容器上安装可用性组。然后我们将执行必要的安装。 重要提示:不建议在生产环境中执行操作。安装是在Ubuntu 18.04上执行的。
安装Docker安装Docker就不介绍了，自行安装即可.
架构 | 主机名 | IP | 端口 | 角色 | | sqlNode1 | 宿主机IP | 1501:1433 | 主 | | sqlNode2 | 宿主机IP | 1502:1433 | 副本 | | sqlNode3 | 宿主机IP | 1503:1433 | 副本 | 端口表示：外网端口：内网端口
准备相关容器镜像拉取操作系统和数据库的Docker镜像，如下
操作系统SQL Server 2019 docker pull mcr.microsoft.com/mssql/server:2019-latest 可通过docker images来查看已下载的镜像信息。 镜像地址：https://hub.docker.com/_/microsoft-mssql-server
开始配置-容器环境准备完毕后，开始正式的配置安装。
步骤1：创建Dockerfile创建目录用于存放dockerfile、docker-compose.yml等文件。 mkdir /sql2019hacd /sql2019hatouch dockerfilevi dockerfile dockerfile内容如下 FROM ubuntu:18.04 RUN apt-get update RUN apt install sudo wget curl gnupg gnupg1 gnupg2 -yRUN apt install software-properties-common systemd vim -yRUN wget -qO- https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add - RUN add-apt-repository "$(wget -qO- https://packages.microsoft.com/config/ubuntu/18.04/mssql-server-2019.list)"RUN apt-get updateRUN apt-get install -y mssql-server RUN /opt/mssql/bin/mssql-conf set hadr.hadrenabled 1RUN /opt/mssql/bin/mssql-conf set sqlagent.enabled true EXPOSE 1433 ENTRYPOINT /opt/mssql/bin/sqlservr 说明： - FROM:表示基于什么镜像进行安装的
- RUN:在镜像中进行的操作
- EXPOSE:指定服务端口
- ENTRYPOINT:运行命令
步骤2：编译镜像通过dockerfile来编译镜像，用于后面的安装，命令：docker build -t sqlag2019:ha . 其中sqlag2019为镜像名称，ha是镜像标签，.表示在当前目录下编译，因为dockerfile就在当前目录下。 以下输出是精简的，实际上输出非常多…也需要一定时间(安装一些包、数据库等)，由网速决定 $ docker build -t sqlag2019:ha .Sending build context to Docker daemon 2.56kBStep 1/12 : FROM ubuntu:18.04 ---> c3c304cb4f22Step 2/12 : RUN apt-get update ---> Running in 950e50f80f00Get:1 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]Get:3 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [932 kB]Get:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]...Step 3/12 : RUN apt install sudo wget curl gnupg gnupg1 gnupg2 -y ---> Running in edc9d15b2383....Step 8/12 : RUN sudo apt-get install -y mssql-server ---> Running in 43d82a503f8aReading package lists...Building dependency tree...Reading state information...The following additional packages will be installed:Step 9/12 : RUN sudo /opt/mssql/bin/mssql-conf set hadr.hadrenabled 1 ---> Running in 166c6596d2ddSQL Server needs to be restarted in order to apply this setting. Please run'systemctl restart mssql-server.service'.Removing intermediate container 166c6596d2dd ---> bcdb057fed43Step 10/12 : RUN sudo /opt/mssql/bin/mssql-conf set sqlagent.enabled true ---> Running in 22dd6a93d1efSQL Server needs to be restarted in order to apply this setting. Please run'systemctl restart mssql-server.service'.Removing intermediate container 22dd6a93d1ef ---> 6b90afbaf94eStep 11/12 : EXPOSE 1433 ---> Running in bcc14f3b0badRemoving intermediate container bcc14f3b0bad ---> 4aae1563aa74Step 12/12 : ENTRYPOINT /opt/mssql/bin/sqlservr ---> Running in 68b6ed45ff6aRemoving intermediate container 68b6ed45ff6a ---> b7467618c371Successfully built b7467618c371Successfully tagged sqlag2019:ha 最后出现Successfully表示编译成功，否则根据错误信息进行解决。
步骤3：创建容器现在镜像编译好了，下面再通过docker-compose文件来创建、配置3个容器，具体内容如下： $ touch docker-compose.yml$ vi docker-compose.yml version: '3' services: db1: container_name: sqlNode1 image: sqlag2019:ha hostname: sqlNode1 domainname: lab.local environment: SA_PASSWORD: "MyPassWord123" ACCEPT_EULA: "Y" ports: - "1501:1433" extra_hosts: sqlNode2.labl.local: "172.16.238.22" sqlNode3.labl.local: "172.16.238.23" networks: internal: ipv4_address: 172.16.238.21 db2: container_name: sqlNode2 image: sqlag2019:ha hostname: sqlNode2 domainname: lab.local environment: SA_PASSWORD: "MyPassWord123" ACCEPT_EULA: "Y" ports: - "1502:1433" extra_hosts: sqlNode1.lab.local: "172.16.238.21" sqlNode3.lab.local: "172.16.238.23" networks: internal: ipv4_address: 172.16.238.22 db3: container_name: sqlNode3 image: sqlag2019:ha hostname: sqlNode3 domainname: lab.local environment: SA_PASSWORD: "MyPassWord123" ACCEPT_EULA: "Y" ports: - "1503:1433" extra_hosts: sqlNode1.lab.local: "172.16.238.21" sqlNode2.lab.local: "172.16.238.22" networks: internal: ipv4_address: 172.16.238.23 networks: internal: ipam: driver: default config: - subnet: 172.16.238.0/24
步骤4：启动容器然后通过docker-compose up -d命令启动三个容器，其中-d表示在后台运行。 $ docker-compose up -dCreating network "sql2019hademo_internal" with the default driverCreating sqlNode2 ...Creating sqlNode1 ...Creating sqlNode2Creating sqlNode3 ...Creating sqlNode1Creating sqlNode2 ... done 注意：docker-compose是需要单独安装的，就是一个可执行文件。可通过apt、yum来安装。
查看容器状态 $ docker-compose psName Command State Ports--------------------------------------------------------------------------sqlNode1 /bin/sh -c /opt/mssql/bin/ ... Up 0.0.0.0:1501->1433/tcpsqlNode2 /bin/sh -c /opt/mssql/bin/ ... Up 0.0.0.0:1502->1433/tcpsqlNode3 /bin/sh -c /opt/mssql/bin/ ... Up 0.0.0.0:1503->1433/tcp 至此容器已经启动完成，下面通过SSMS连接数据库进行相关检查和配置ALWAYSON。
步骤5：SSMS连接MSSQL通过宿主机的外网IP+端口连接相应的数据库，如下： 
注意：IP和端口之间是逗号
可以看到数据库的图标也是Linux的图标。
配置-数据库这部分就是在数据库中进行相关配置，如：创建KEY加密文件，管理用户、可用组等。
步骤1：连接主库-sqlNode1主库也就是节点1，端口是1501，连接方法如上图。 我们将证书和私钥提取到/tmp/dbm_certificate.cer和/tmp/dbm_certificate.pvk文件中。 我们将这些文件复制到其他节点，并根据以下文件创建主密钥和证书：执行以下脚本 USE masterGO CREATE LOGIN dbm_login WITH PASSWORD = 'MyStr0ngPa$w0rd';CREATE USER dbm_user FOR LOGIN dbm_login;GO CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'MyStr0ngPa$w0rd';goCREATE CERTIFICATE dbm_certificate WITH SUBJECT = 'dbm';BACKUP CERTIFICATE dbm_certificateTO FILE = '/tmp/dbm_certificate.cer'WITH PRIVATE KEY ( FILE = '/tmp/dbm_certificate.pvk', ENCRYPTION BY PASSWORD = 'MyStr0ngPa$w0rd' );GO 将文件拷贝到其他两个节点： $ docker cp sqlNode1:/tmp/dbm_certificate.cer .$ docker cp sqlNode1:/tmp/dbm_certificate.pvk .$ docker cp dbm_certificate.cer sqlNode2:/tmp/$ docker cp dbm_certificate.pvk sqlNode2:/tmp/$ docker cp dbm_certificate.cer sqlNode3:/tmp/$ docker cp dbm_certificate.pvk sqlNode3:/tmp/
步骤2：连接从库-sqlNode2和sqlNode3两个从库的端口分别是：1502和1503.然后重复主库执行的操作，如下： CREATE LOGIN dbm_login WITH PASSWORD = 'MyStr0ngPa$w0rd';CREATE USER dbm_user FOR LOGIN dbm_login;GO CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'MyStr0ngPa$w0rd';GOCREATE CERTIFICATE dbm_certificate AUTHORIZATION dbm_user FROM FILE = '/tmp/dbm_certificate.cer' WITH PRIVATE KEY ( FILE = '/tmp/dbm_certificate.pvk', DECRYPTION BY PASSWORD = 'MyStr0ngPa$w0rd');GO
步骤3：所有节点在所有节点上执行以下命令 CREATE ENDPOINT [Hadr_endpoint] AS TCP (LISTENER_IP = (0.0.0.0), LISTENER_PORT = 5022) FOR DATA_MIRRORING ( ROLE = ALL, AUTHENTICATION = CERTIFICATE dbm_certificate, ENCRYPTION = REQUIRED ALGORITHM AES );ALTER ENDPOINT [Hadr_endpoint] STATE = STARTED;GRANT CONNECT ON ENDPOINT::[Hadr_endpoint] TO [dbm_login]; 启用开机自启动ALWAYON，在所有节点执行以下命令 ALTER EVENT SESSION AlwaysOn_health ON SERVER WITH (STARTUP_STATE=ON);GO
步骤4：创建高可用组可以用SSMS工具和T-SQL两种方式，下面以T-SQL为例： 运行以下脚本在主节点中创建一个可用性组。 请注意，选择CLUSTER_TYPE = NONE选项是因为它是在没有诸如Pacemaker或Windows Server故障转移群集之类的群集管理平台的情况下安装的。 如果要在Linux上安装AlwaysOn AG，则应为Pacemaker选择CLUSTER_TYPE = EXTERNAL： CREATE AVAILABILITY GROUP [AG1] WITH (CLUSTER_TYPE = NONE) FOR REPLICA ON N'sqlNode1' WITH ( ENDPOINT_URL = N'tcp://sqlNode1:5022', AVAILABILITY_MODE = ASYNCHRONOUS_COMMIT, SEEDING_MODE = AUTOMATIC, FAILOVER_MODE = MANUAL, SECONDARY_ROLE (ALLOW_CONNECTIONS = ALL) ), N'sqlNode2' WITH ( ENDPOINT_URL = N'tcp://sqlNode2:5022', AVAILABILITY_MODE = ASYNCHRONOUS_COMMIT, SEEDING_MODE = AUTOMATIC, FAILOVER_MODE = MANUAL, SECONDARY_ROLE (ALLOW_CONNECTIONS = ALL) ), N'sqlNode3' WITH ( ENDPOINT_URL = N'tcp://sqlNode3:5022', AVAILABILITY_MODE = ASYNCHRONOUS_COMMIT, SEEDING_MODE = AUTOMATIC, FAILOVER_MODE = MANUAL, SECONDARY_ROLE (ALLOW_CONNECTIONS = ALL) );GO 在从库中执行以下命令，将从库加入到AG组中 ALTER AVAILABILITY GROUP [ag1] JOIN WITH (CLUSTER_TYPE = NONE);ALTER AVAILABILITY GROUP [ag1] GRANT CREATE ANY DATABASE;GO 至此在Docker容器中安装SQL Server Alwayson集群已经完成了！ 注意：当指定CLUSTER_TYPE = NONE创建可用组时，在执行故障转移时需执行以下命令 ALTER AVAILABILITY GROUP [ag1] FORCE_FAILOVER_ALLOW_DATA_LOSS
测试在主库上创建一个数据库，并加入到可用组AG中。 CREATE DATABASE agtestdb;GOALTER DATABASE agtestdb SET RECOVERY FULL;GOBACKUP DATABASE agtestdb TO DISK = '/var/opt/mssql/data/agtestdb.bak';GOALTER AVAILABILITY GROUP [ag1] ADD DATABASE [agtestdb];GO 通过SSMS查看同步状态是否正常.
参考连接https://docs.microsoft.com/en-us/sql/linux/quickstart-install-connect-docker?view=sql-server-ver15
https://docs.microsoft.com/en-us/sql/linux/quickstart-install-connect-ubuntu?view=sql-server-ver15
https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-create-availability-group?view=sql-server-ver15
https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-configure-mssql-conf?view=sql-server-ver15
https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-configure-environment-variables?view=sql-server-ver15
https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-availability-group-cluster-ubuntu?view=sql-server-linux-ver15
https://docs.docker.com/engine/install/ubuntu/
https://docs.docker.com/compose/
下载地址:
IIS的web.config中跨域访问设置方法
Docke中安装redis的方法 |
