Docker
In myprevious postI showed you how to setup Percona XtraDB Cluster 5.6 on Docker. This time I will show you how to setup Percona ClusterControl and add the existing Percona XtraDB Cluster 5.6 that we’ve managed to setup from the previous post.
Let us note the following details about our existing containers:
- 172.17.0.2 dockerpxc1
- 172.17.0.3 dockerpxc2
- 172.17.0.4 dockerpxc3
- 172.17.0.5 dockerccui-test
A quick tip for everyone who has followed my previous blog on setting up Percona XtraDB Cluster 5.6 on Docker: I did not install OpenSSH on the Docker instances on purpose and relied on ‘docker attach’ command to be able to get into each container. For this case however, we will need to install openssh-server in each container and make sure SSH is running as well as setup SSH key access for the Percona ClusterControl container to SSH into each Percona XtraDB Cluster node.
Create the Percona ClusterControl UI Docker container
We will need to create a docker container manually instead of building a container from a Dockerfile since we can’t run the ClusterControl installation non-interactively.
root@Perconallc-Support / # docker run --name dockerccui-test -p 80 -i -t ubuntu:12.04 bash
root @ Perconallc - Support / # docker run --name dockerccui-test -p 80 -i -t ubuntu:12.04 bash |
Notice that I had to add ‘-p 80′ to expose port 80 to the host network so we can access the Percona ClusterControl UI from a web browser, we will use Ubuntu 12.04 docker image. I will show you how to check the port that was dynamically allocated on the host network.
I would recommend to run ‘apt-get upgrade’ and ‘apt-get dist-upgrade’ just to make sure we have the latest software packages installed. Install wget and lsb-release packages since these are needed in the next steps.
Download and run the Percona ClusterControl installer and follow instructions on the prompt.
root@Perconallc-Support / # chmod +x install-cc.shroot@Perconallc-Support / # ./install-cc.sh
root @ Perconallc - Support / # chmod +x install-cc.sh root @ Perconallc - Support / # ./install-cc.sh |
The installer will give you several options, one of which is to install Percona Server as Percona ClusterControl’s backend database, I’d highly recommend to choose ‘Yes’. If everything goes well you will need to continue setup of the Percona ClusterControl on the web browser. If you missed installing lsb-release earlier then you will get an error midway through the installation, but you can always install lsb-release package and re-run the installation.
To identify the exposed port on the host’s side we will need to verify it:
root@Perconallc-Support / # docker inspect dockerccui-test | grep HostPort"HostPort": "49154""HostPort": "49154"
root @ Perconallc - Support / # docker inspect dockerccui-test | grep HostPort "HostPort" : "49154" "HostPort" : "49154" |
As we can see, port 49154 was dynamically allocated to the host network and mapped to port 80 on the docker instance. You may explicitly set the port mapping on the host network ‘-p {hostPort}:{containerPort}’, please consult official Docker documentation for further reading.
Setup Percona ClusterControl on the web browser
We can now access the Percona ClusterControl user interface through http://{Host}:49154/clustercontrol. Use the username (in email form) that you indicated during the installation and the default password ‘admin’ to log in.
We should see the following page after successfully logging in:

Percona ClusterControl Wizard
Select ‘Add an existing cluster’ and click Next then follow further instructions to get to the next page:

Add existing cluster
If all goes well you will be seeing the Database Clusters and can view your cluster nodes.

Percona ClusterControl UI on Docker container with Percona XtraDB Clusters 5.6 with each node on docker containers
Summary
In this blog I showed you how to setup Percona ClusterControl on Docker and adding an existing cluster to ClusterControl.
* Create a Docker container for Percona ClusterControl
* Download Percona ClusterControl and installed it
* Added existing Percona XtraDB Cluster on the Percona ClusterControl UI
* Profit!
You may also read the following blogs related to Percona ClusterControl:
- How to create a new Percona XtraDB Cluster with ClusterControl
- How to add an existing Percona XtraDB Cluster to Percona ClusterControl
For those who are new to Docker and containerization you may read through Patrick Galbraith’s blog series about Docker.

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MySQL通過表結構和SQL查詢高效管理結構化數據,並通過外鍵實現表間關係。 1.創建表時定義數據格式和類型。 2.使用外鍵建立表間關係。 3.通過索引和查詢優化提高性能。 4.定期備份和監控數據庫確保數據安全和性能優化。

MySQL是一個開源的關係型數據庫管理系統,廣泛應用於Web開發。它的關鍵特性包括:1.支持多種存儲引擎,如InnoDB和MyISAM,適用於不同場景;2.提供主從復制功能,利於負載均衡和數據備份;3.通過查詢優化和索引使用提高查詢效率。

SQL用於與MySQL數據庫交互,實現數據的增、刪、改、查及數據庫設計。 1)SQL通過SELECT、INSERT、UPDATE、DELETE語句進行數據操作;2)使用CREATE、ALTER、DROP語句進行數據庫設計和管理;3)複雜查詢和數據分析通過SQL實現,提升業務決策效率。

MySQL的基本操作包括創建數據庫、表格,及使用SQL進行數據的CRUD操作。 1.創建數據庫:CREATEDATABASEmy_first_db;2.創建表格:CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY,titleVARCHAR(100)NOTNULL,authorVARCHAR(100)NOTNULL,published_yearINT);3.插入數據:INSERTINTObooks(title,author,published_year)VA

MySQL在Web應用中的主要作用是存儲和管理數據。 1.MySQL高效處理用戶信息、產品目錄和交易記錄等數據。 2.通過SQL查詢,開發者能從數據庫提取信息生成動態內容。 3.MySQL基於客戶端-服務器模型工作,確保查詢速度可接受。

構建MySQL數據庫的步驟包括:1.創建數據庫和表,2.插入數據,3.進行查詢。首先,使用CREATEDATABASE和CREATETABLE語句創建數據庫和表,然後用INSERTINTO語句插入數據,最後用SELECT語句查詢數據。

MySQL適合初學者,因為它易用且功能強大。 1.MySQL是關係型數據庫,使用SQL進行CRUD操作。 2.安裝簡單,需配置root用戶密碼。 3.使用INSERT、UPDATE、DELETE、SELECT進行數據操作。 4.複雜查詢可使用ORDERBY、WHERE和JOIN。 5.調試需檢查語法,使用EXPLAIN分析查詢。 6.優化建議包括使用索引、選擇合適數據類型和良好編程習慣。


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