From e92505069e415716c1fcefb62a0661833e0c978b Mon Sep 17 00:00:00 2001 From: darksun Date: Wed, 3 Apr 2019 16:21:11 +0800 Subject: [PATCH] =?UTF-8?q?=E9=80=89=E9=A2=98:=2020190328=20How=20to=20run?= =?UTF-8?q?=20PostgreSQL=20on=20Kubernetes=20sources/tech/20190328=20How?= =?UTF-8?q?=20to=20run=20PostgreSQL=20on=20Kubernetes.md?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...328 How to run PostgreSQL on Kubernetes.md | 108 ++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 sources/tech/20190328 How to run PostgreSQL on Kubernetes.md diff --git a/sources/tech/20190328 How to run PostgreSQL on Kubernetes.md b/sources/tech/20190328 How to run PostgreSQL on Kubernetes.md new file mode 100644 index 0000000000..58435f2e6e --- /dev/null +++ b/sources/tech/20190328 How to run PostgreSQL on Kubernetes.md @@ -0,0 +1,108 @@ +[#]: collector: (lujun9972) +[#]: translator: ( ) +[#]: reviewer: ( ) +[#]: publisher: ( ) +[#]: url: ( ) +[#]: subject: (How to run PostgreSQL on Kubernetes) +[#]: via: (https://opensource.com/article/19/3/how-run-postgresql-kubernetes) +[#]: author: (Jonathan S. Katz https://opensource.com/users/jkatz05) + +How to run PostgreSQL on Kubernetes +====== +Create uniformly managed, cloud-native production deployments with the +flexibility to deploy a personalized database-as-a-service. +![cubes coming together to create a larger cube][1] + +By running a [PostgreSQL][2] database on [Kubernetes][3], you can create uniformly managed, cloud-native production deployments with the flexibility to deploy a personalized database-as-a-service tailored to your specific needs. + +Using an Operator allows you to provide additional context to Kubernetes to [manage a stateful application][4]. An Operator is also helpful when using an open source database like PostgreSQL to help with actions including provisioning, scaling, high availability, and user management. + +Let's explore how to get PostgreSQL up and running on Kubernetes. + +### Set up the PostgreSQL operator + +The first step to using PostgreSQL with Kubernetes is installing an Operator. You can get up and running with the open source [Crunchy PostgreSQL Operator][5] on any Kubernetes-based environment with the help of Crunchy's [quickstart script][6] for Linux. + +The quickstart script has a few prerequisites: + + * The [Wget][7] utility installed + * [kubectl][8] installed + * A [StorageClass][9] defined on your Kubernetes cluster + * Access to a Kubernetes user account with cluster-admin privileges. This is required to install the Operator [RBAC][10] rules + * A [namespace][11] to hold the PostgreSQL Operator + + + +Executing the script will give you a default PostgreSQL Operator deployment that assumes [dynamic storage][12] and a StorageClass named **standard**. User-provided values are allowed by the script to override these defaults. + +You can download the quickstart script and set it to be executable with the following commands: + +``` +wget +chmod +x ./quickstart.sh +``` + +Then you can execute the quickstart script: + +``` +./examples/quickstart.sh +``` + +After the script prompts you for some basic information about your Kubernetes cluster, it performs the following operations: + + * Downloads the Operator configuration files + * Sets the **$HOME/.pgouser** file to default settings + * Deploys the Operator as a Kubernetes [Deployment][13] + * Sets your **.bashrc** to include the Operator environmental variables + * Sets your **$HOME/.bash_completion** file to be the **pgo bash_completion** file + + + +During the quickstart's execution, you'll be prompted to set up the RBAC rules for your Kubernetes cluster. In a separate terminal, execute the command the quickstart command tells you to use. + +Once the script completes, you'll get information on setting up a port forward to the PostgreSQL Operator pod. In a separate terminal, execute the port forward; this will allow you to begin executing commands to the PostgreSQL Operator! Try creating a cluster by entering: + +``` +pgo create cluster mynewcluster +``` + +You can test that your cluster is up and running with by entering: + +``` +pgo test mynewcluster +``` + +You can now manage your PostgreSQL databases in your Kubernetes environment! You can find a full reference to commands, including those for scaling, high availability, backups, and more, in the [documentation][14]. + +* * * + +_Parts of this article are based on[Get Started Running PostgreSQL on Kubernetes][15] that the author wrote for the Crunchy blog._ + +-------------------------------------------------------------------------------- + +via: https://opensource.com/article/19/3/how-run-postgresql-kubernetes + +作者：[Jonathan S. Katz][a] +选题：[lujun9972][b] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://opensource.com/users/jkatz05 +[b]: https://github.com/lujun9972 +[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/cube_innovation_process_block_container.png?itok=vkPYmSRQ (cubes coming together to create a larger cube) +[2]: https://www.postgresql.org/ +[3]: https://kubernetes.io/ +[4]: https://opensource.com/article/19/2/scaling-postgresql-kubernetes-operators +[5]: https://github.com/CrunchyData/postgres-operator +[6]: https://crunchydata.github.io/postgres-operator/stable/installation/#quickstart-script +[7]: https://www.gnu.org/software/wget/ +[8]: https://kubernetes.io/docs/tasks/tools/install-kubectl/ +[9]: https://kubernetes.io/docs/concepts/storage/storage-classes/ +[10]: https://kubernetes.io/docs/reference/access-authn-authz/rbac/ +[11]: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/ +[12]: https://kubernetes.io/docs/concepts/storage/dynamic-provisioning/ +[13]: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/ +[14]: https://crunchydata.github.io/postgres-operator/stable/#documentation +[15]: https://info.crunchydata.com/blog/get-started-runnning-postgresql-on-kubernetes