咨询：Bosh部署中能否为Release R的Job J设置非配置环境变量E？

Absolutely, you have a couple of reliable ways to set the unconfigured environment variable E for Job J without altering the original release. Here are the most common, practical approaches:

1. Define it directly in your Deployment Manifest #

You can inject the custom environment variable straight into the job definition within your deployment YAML. BOSH supports this via the env.bosh.env section for individual jobs, which bypasses the job's predefined properties:

instance_groups:
- name: your-target-instance-group
  jobs:
  - name: J
    release: R
    # Add this block to set your custom environment variable
    env:
      bosh:
        env:
          E: "your-preferred-value" # Replace with your actual desired value

This ensures E is set every time Job J starts up as part of the deployment.

2. Use BOSH CLI with Operation Files (for dynamic/one-off changes) #

If you don't want to modify your base manifest, or need to apply this change temporarily, use an operation file and pass it via the BOSH CLI during deployment:

Step 1: Create an operation file (e.g., add-env-var-E.yml) #

- type: replace
  path: /instance_groups/name=your-target-instance-group/jobs/name=J/env/bosh/env/E?
  value: "your-temporary-value"

Step 2: Deploy with the operation file #

Run this command to apply the change on-the-fly:

bosh deploy your-deployment-manifest.yml -o add-env-var-E.yml

Bonus: Use CLI variables for dynamic values #

If you want to reuse the same manifest but vary the value of E per deployment, define a variable in your manifest first:

instance_groups:
- name: your-target-instance-group
  jobs:
  - name: J
    release: R
    env:
      bosh:
        env:
          E: ((env_var_E_value))

Then pass the dynamic value via the BOSH CLI:

bosh deploy your-deployment-manifest.yml --var env_var_E_value="your-dynamic-value"

Quick Notes #

• The bosh.env namespace guarantees these variables are injected directly into the job's runtime environment, no need to adjust the original release's job configuration.
• This method works regardless of whether the job's original properties include the environment variable or not.

内容的提问来源于stack exchange，提问作者Chirlo