Ansible，k8s和变量 [英] Ansible, k8s and variables

问题描述

我正在使用Ansible和k8s模块将应用程序部署到OpenShift集群.总的来说，这真的很好.

I'm using Ansible and the k8s module for deploying applications to an OpenShift cluster. In general this is working really well.

但是，当我尝试在端口配置中使用变量中的值来设置端口值时，事情就变得不那么愉快了.

However, when I try to set the port value, in a deployment config, using a value from a variable, things are not so happy.

我以以下一项艰巨的任务为例:

I have the following ansible task as an example:

- name: Create app service
      k8s:
        name: "{{ name | lower }}"
        state: present
        definition:
          apiVersion: v1
          kind: Service
          metadata:
            annotations:
            labels:
              app: "{{ name | lower }}"
            name: "{{ name | lower }}"
            namespace: "{{ name | lower }}"
          spec:
            ports:
              - name: "{{ port }}-tcp"
                port: "{{ port  }}"
                protocol: TCP
                targetPort: "{{ port | int }}" <--- the problem!
            selector:
              deploymentconfig: "{{ name | lower }}"
            sessionAffinity: None
            type: ClusterIP
          status:
            loadBalancer: {}

将变量设置在yaml文件中，该文件将被读取到剧本中，并且变量的设置类似于port: "5000".

The variable is set in a yaml file, which is read into the playbook, and the variable is set like port: "5000".

如果我将其更改为port: 5000，则可以解决问题，但是我在其他几个地方和其他剧本中使用了此变量，所以我宁愿保持该变量不变.

If I change this to port: 5000 then it solves the problem, but I use this variable in several other places and other playbooks, so I would prefer to keep the variable as is.

我尝试使用以下方法来解决此问题: "{{ port | int }}"

I have tried using the approaches to solve this: "{{ port | int }}"

我得到的错误的示例是:

An example of the error I get is:

fatal: [localhost]: FAILED! => {"changed": false, "error": 422, "msg": "Failed to patch object: {\"kind\":\"Status\",\"apiVersion\":\"v1\",\"metadata\":{},\"status\":\"Failure\",\"message\":\"Service \\\"myapp\\\" is invalid: spec.ports[0].targetPort: Invalid value: \\\"7001\\\": must contain at least one letter or number (a-z, 0-9)\",\"reason\":\"Invalid\",\"details\":{\"name\":\"usdt-wallet\",\"kind\":\"Service\",\"causes\":[{\"reason\":\"FieldValueInvalid\",\"message\":\"Invalid value: \\\"5000\\\": must contain at least one letter or number (a-z, 0-9)\",\"field\":\"spec.ports[0].targetPort\"}]},\"code\":422}\n", "reason": "Unprocessable Entity", "status": 422}

推荐答案

根据发布的错误消息，您的问题不是|int或|string －尽管我同意错误消息具有误导性:

According to the posted error message, your problem isn't |int or |string -- although I agree the error message is misleading:

消息":服务\"usdt-wallet \"无效:spec.ports [0] .targetPort:无效值:\"70001 \":必须至少包含一个字母或数字(az，0- 9)"，

"message": "Service \"usdt-wallet\" is invalid: spec.ports[0].targetPort: Invalid value: \"70001\": must contain at least one letter or number (a-z, 0-9)",

，但这是由于尝试将70001用作目标端口而引起的，但是TCP端口必须在1到65535(包括1和65535)之间，如

but it is caused by trying to use 70001 as a target port but TCP ports must be in the range 1 to 65535 inclusive, as stated by the fine manual

这篇关于Ansible，k8s和变量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！